THERMOPLASTIC POLYMER COMPOSITION AND STABILISER COMPOSITION

Information

  • Patent Application
  • 20130035426
  • Publication Number
    20130035426
  • Date Filed
    April 14, 2011
    13 years ago
  • Date Published
    February 07, 2013
    11 years ago
Abstract
The present invention provides a thermoplastic polymer composition containing a particular phenol compound or organic phosphorous compound, trehalose and a thermoplastic polymer, as well as a stabilizer composition containing a particular phenol compound or organic phosphorous compound and trehalose. A combined use of a particular phenol compound or organic phosphorous compound and trehalose can improve processing stability of a thermoplastic polymer composition.
Description
TECHNICAL FIELD

The present invention relates to a thermoplastic polymer composition and stabilizer composition.


BACKGROUND ART

Since thermoplastic polymers are superior in transparency and show good impact resistance, they are widely used for food packaging containers, convenience goods and the like. For the production of such products, thermoplastic polymers are used as compositions containing additives. As additives for thermoplastic polymers, 2,4-di-t-pentyl-6-[1-(3,5-di-t-pentyl-2-hydroxyphenyl)ethyl]phenyl acrylate, 6-[3-(3-t-butyl-4-hydroxy-5-methylphenyl)propoxy]-2,4,8,10-tetra-t-butyldibenzo[d,f][1,3,2]dioxaphosphepine (which is also called 6-t-butyl-4-[3-[(2,4,8,10-tetra-t-butyldibenzo[d,f][1,3,2]dioxaphosphepin-6-yl)oxy]propyl]-2-methylphenol), octadecyl 3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate, 3,9-bis[2-{3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionyloxy}-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane, pentaerythritol tetrakis[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate], tris(2,4-di-t-butylphenyl) phosphite and the like are known (patent documents 1-6).


DOCUMENT LIST
Patent Documents



  • patent document 1: JP-A-1-168643

  • patent document 2: JP-A-10-273494

  • patent document 3: U.S. Pat. No. 3,330,859

  • patent document 4: U.S. Pat. No. 3,644,482

  • patent document 5: JP-A-59-25826

  • patent document 6: JP-A-51-109050



SUMMARY OF THE INVENTION
Problems to be Solved by the Invention

There is a demand for a thermoplastic polymer composition showing further improved processing stability.


Means of Solving the Problems

The present inventors have conducted intensive studies in an attempt to solve the aforementioned problems and found that a thermoplastic polymer composition containing


the following compound represented by the formula (1),


the following compound represented by the formula (2),


at least one selected from the group consisting of the


following compounds represented by the formulas (3)-(7), or


the following compound represented by the formula (8),


trehalose, and


a thermoplastic polymer


shows superior processing stability. They have reached the following invention based on such findings.


[1] A thermoplastic polymer composition comprising a compound represented by the formula (1):




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wherein in the formula (1),


each R1 and/or each R2 are/is independently a C1-8 alkyl group, a C6-12 aryl group or a C7-18 aralkyl group,


R3 is a hydrogen atom or a C1-3 alkyl group, and


R4 is a hydrogen atom or a methyl group,


trehalose and a thermoplastic polymer.


[2] The thermoplastic polymer composition of the above-mentioned [1], wherein the total amount of the compound represented by the formula (1) and trehalose is 0.001-3 parts by weight relative to 100 parts by weight of the thermoplastic polymer.


[3] A stabilizer composition comprising a compound represented by the formula (1) and trehalose.


[4] The stabilizer composition of the above-mentioned [3], wherein the compound represented by the formula (1) is at least one selected from the group consisting of 2,4-di-t-pentyl-6-[1-(3,5-di-t-pentyl-2-hydroxyphenyl)ethyl]phenyl acrylate and 2-t-butyl-6-(3-t-butyl-2-hydroxy-5-methylbenzyl)-4-methylphenyl acrylate.


[5] The stabilizer composition of the above-mentioned [3] or [4], further comprising a compound represented by the formula (2):




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wherein in the formula (2),


each R5 and/or each R6 are/is independently a hydrogen atom or a C1-6 alkyl group,


L1 is an n-valent C1-24 alcohol residue optionally containing a hetero atom,


n is an integer of 1-4, and


the alcohol residue here is a residue obtained by removing a hydrogen atom from the hydroxy group of the alcohol.


[6] The stabilizer composition of any one of the above-mentioned [3]-[5], further comprising at least one selected from the group consisting of the compounds represented by the formulas (3)-(7):




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wherein in the formula (3), each R7 and/or each R8 are/is independently a hydrogen atom, a C1-9 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkylcycloalkyl group, a C7-12 aralkyl group or a phenyl group,




embedded image


wherein in the formula (4), each R9 is independently a hydrogen atom, a C1-9 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkylcycloalkyl group, a C7-12 aralkyl group or a phenyl group,




embedded image


wherein in the formula (5), each R10 is independently a C1-18 alkyl group or a phenyl group optionally substituted by at least one selected from the group consisting of a C1-9 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkylcycloalkyl group and a C7-12 aralkyl group,




embedded image


wherein in the formula (6),


each R11 and/or each R12 are/is independently a hydrogen atom, a C1-9 alkyl group, a C5-8 cycloalkyl group, a C8-12 alkylcycloalkyl group, a C7-12 aralkyl group or a phenyl group,


each L2 is independently a single bond, a sulfur atom or a divalent group represented by the formula (6a):




embedded image


wherein in the formula (6a), R13 and R14 are each independently a hydrogen atom or a C1-7 alkyl group, and the total carbon number of R13 and R14 is not more than 7, and


each L3 is independently a C2-8 alkylene group,




embedded image


wherein in the formula (7),


each R15 and/or each R16 are/is independently a hydrogen atom, a C1-9 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkylcycloalkyl group, a C7-12 aralkyl group or a phenyl group,


R17 is a C1-8 alkyl group or a phenyl group optionally substituted by at least one selected from the group consisting of a C1-9 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkylcycloalkyl group and a C7-12 aralkyl group, and


L4 is a single bond, a sulfur atom or a divalent group represented by the formula (7a):




embedded image


wherein in the formula (7a), R18 and R19 are each independently a hydrogen atom or a C1-7 alkyl group, and the total carbon number of R18 and R19 is not more than 7.


[7] The stabilizer composition of the above-mentioned [6], wherein at least one selected from the group consisting of the compounds represented by the formulas (3)-(7) is the compound represented by the formula (3).


[8] A production method of a thermoplastic polymer composition, comprising mixing the stabilizer composition of any one of the above-mentioned [3]-[7] and a thermoplastic polymer.


[9] Use of the stabilizer composition of any one of the above-mentioned [3]-[7] for improving the processing stability of a thermoplastic polymer composition.


[10] A thermoplastic polymer composition comprising a compound represented by the formula (8):




embedded image


wherein in the formula (8),


each R20 and/or each R21 are/is independently a hydrogen atom, a C1-8 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkylcycloalkyl group, a C7-12 aralkyl group or a phenyl group,


R23 and R24 are each independently a hydrogen atom, a C1-3 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkylcycloalkyl group, a C7-12 aralkyl group or a phenyl group,


each R22 is independently a hydrogen atom or a C1-8 alkyl group,


L5 is a single bond, a sulfur atom or a divalent group represented by the formula (8a):




embedded image


wherein in the formula (8a), R25 is a hydrogen atom, a C1-8 alkyl group or a C5-8 cycloalkyl group,


L6 is a C2-8 alkylene group or a divalent group represented by the formula (8b):




embedded image


wherein in the formula (8b), L7 is a single bond or a C1-8 alkylene group, and * shows bonding to the oxygen atom side, and


one of Z1 and Z2 is a hydroxy group, a C1-8 alkyl group, a C1-8 alkoxy group or a C7-12 aralkyloxy group, and the other is a hydrogen atom or a C1-8 alkyl group,


trehalose and a thermoplastic polymer.


[11] The thermoplastic polymer composition of the above-mentioned [10], wherein the total amount of the compound represented by the formula (8) and trehalose is 0.001-3 parts by weight relative to 100 parts by weight of the thermoplastic polymer.


[12] A stabilizer composition comprising a compound represented by the formula (8) and trehalose.


[13] The stabilizer composition of the above-mentioned [12], wherein the compound represented by the formula (8) is 6-[3-(3-t-butyl-4-hydroxy-5-methylphenyl)propoxy]-2,4,8,10-tetra-t-butyldibenzo[d,f][1,3,2]dioxaphosphepine.


[14] The stabilizer composition of the above-mentioned [12] or [13], further comprising a compound represented by the formula (2).


[15] The stabilizer composition of any one of the above-mentioned [12]-[14], further comprising at least one selected from the group consisting of the compounds represented by the formulas (3)-(7).


[16] The stabilizer composition of the above-mentioned [15], wherein at least one selected from the group consisting of the compounds represented by the formulas (3)-(7) is the compound represented by the formula (3).


[17] A production method of a thermoplastic polymer composition, comprising mixing the stabilizer composition of any one of the above-mentioned [12]-[16] and a thermoplastic polymer.


[18] Use of the stabilizer composition of any one of the above-mentioned [12]-[16] for improving the processing stability of a thermoplastic polymer composition.


[19] A thermoplastic polymer composition comprising a compound represented by the formula (2), trehalose and a thermoplastic polymer.


[20] The thermoplastic polymer composition of the above-mentioned


[19], wherein the total amount of the compound represented by the formula (2) and trehalose is 0.001-3 parts by weight relative to 100 parts by weight of the thermoplastic polymer.


[21] The thermoplastic polymer composition of the above-mentioned [19] or [20], wherein the thermoplastic polymer is a styrene-butadiene block copolymer.


[22] A stabilizer composition comprising a compound represented by the formula (2) and trehalose.


[23] A stabilizer composition consisting of a compound represented by the formula (2) and trehalose.


[24] The stabilizer composition of the above-mentioned [22] or [23], wherein the compound represented by the formula (2) is at least one selected from the group consisting of octadecyl 3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate, 3,9-bis[2-{3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionyloxy}-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane and pentaerythritol tetrakis[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate].


[25] A production method of a thermoplastic polymer composition, comprising mixing the stabilizer composition of any one of the above-mentioned [22]-[24] and a thermoplastic polymer.


[26] Use of the stabilizer composition of any one of the above-mentioned [22]-[24] for improving the processing stability of a thermoplastic polymer composition.


[27] A thermoplastic polymer composition comprising trehalose, a thermoplastic polymer and at least one selected from the group consisting of the compounds represented by the formulas (3)-(7).


[28] The thermoplastic polymer composition of the above-mentioned [27], wherein the total amount of trehalose and the compound selected from the group consisting of the compounds represented by the formulas (3)-(7) is 0.001-3 parts by weight relative to 100 parts by weight of the thermoplastic polymer.


[29] The thermoplastic polymer composition of the above-mentioned [27] or [28], wherein the thermoplastic polymer is a styrene-butadiene block copolymer.


[30] A stabilizer composition comprising trehalose and at least one selected from the group consisting of the compounds represented by the formulas (3)-(7).


[31] A stabilizer composition consisting of trehalose and at least one selected from the group consisting of the compounds represented by the formulas (3)-(7).


[32] The stabilizer composition of the above-mentioned [30] or [31], wherein at least one selected from the group consisting of the compounds represented by the formulas (3)-(7) is the compound represented by the formula (3).


[33] The stabilizer composition of the above-mentioned [32], wherein the compound represented by the formula (3) is tris(2,4-di-t-butylphenyl) phosphite.


[34] A production method of a thermoplastic polymer composition, comprising mixing the stabilizer composition of any one of the above-mentioned [30]-[33] and a thermoplastic polymer.


[35] Use of the stabilizer composition of any one of the above-mentioned [30]-[33] for improving the processing stability of a thermoplastic polymer composition.


In the present invention, the “Ca-b” means that the carbon number is not less than a and not more than b. In the following, the “compound represented by the formula (1)” and the like are sometimes abbreviated as “compound (1)” and the like. Similarly, the “divalent group represented by the formula (6a)” and the like are sometimes abbreviated as “divalent group (6a)” and the like.


Effect of the Invention

By using compound (1), compound (2), at least one selected from the group consisting of compounds (3)-(7) or compound (8) in combination with trehalose, the processing stability of a thermoplastic polymer composition can be improved.







DESCRIPTION OF EMBODIMENTS

The present invention is explained successively in the following. In the following, the thermoplastic polymer composition of the present invention and the stabilizer composition of the present invention, which contain compound (1) and trehalose as essential components, are sometimes referred to as “the first thermoplastic polymer composition” and “the first stabilizer composition”, respectively.


In addition, the thermoplastic polymer composition of the present invention and the stabilizer composition of the present invention, which contain compound (8) and trehalose as essential components, are sometimes referred to as “the second thermoplastic polymer composition” and “the second stabilizer composition”, respectively.


Furthermore, the thermoplastic polymer composition of the present invention and the stabilizer composition of the present invention, which contain compound (2) and trehalose as essential components, are sometimes referred to as “the third thermoplastic polymer composition” and “the third stabilizer composition”, respectively.


Moreover, the thermoplastic polymer composition of the present invention and the stabilizer composition of the present invention, which contain trehalose and at least one selected from the group consisting of compounds (3)-(7) as essential components, are sometimes referred to as “the fourth thermoplastic polymer composition” and “the fourth stabilizer composition”, respectively.


The first thermoplastic polymer composition is explained now. The first thermoplastic polymer composition contains compound (1), trehalose and a thermoplastic polymer. Only one kind of compound (1) may be used or two or more kinds thereof may be used in combination. In the following, compound (1) is explained successively.


Each R1 and/or each R2 in the formula (1) are/is independently a C1-8 alkyl group, a C6-12 aryl group or a C7-18 aralkyl group. While there are two R1, they may be the same or different, and they are preferably the same. The same applies to R2.


The C1-8 alkyl group may be a chain or a cyclic group, preferably a chain (linear or branched chain), more preferably a branched chain. The C1-8 alkyl group includes a linear C1-8 alkyl group (e.g., a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group (to be also referred to as an amyl group) and the like), a branched chain C3-8 alkyl group (e.g., an isopropyl group, an isobutyl group, a sec-butyl group, a t-butyl group, a t-pentyl group, a 2-ethylhexyl group and the like), and a cyclic C3-8 alkyl group (i.e., a C3-8 cycloalkyl group, for example, a cyclopentyl group, a cyclohexyl group and the like). Examples of the C6-12 aryl group include a phenyl group, a 1-naphthyl group, a 2-naphthyl group and the like. Examples of the C7-18 aralkyl group include a benzyl group, a 1-phenylethyl group, a 2-phenylethyl group and the like.


Preferably, each R1 and/or each R2 are/is independently a branched chain C3-8 alkyl group, more preferably a C4-8 alkyl group having a tertiary carbon atom, still more preferably a t-butyl group or a t-pentyl group, particularly preferably a t-pentyl group.


R3 in the formula (1) is a hydrogen atom or a C1-3 alkyl group. The C1-3 alkyl group may be a linear or branched chain. Examples of the C1-3 alkyl group include a methyl group, an ethyl group, a propyl group and an isopropyl group. R3 is preferably a hydrogen atom or a methyl group.


R4 in the formula (1) is a hydrogen atom or a methyl group, preferably a hydrogen atom.


Examples of compound (1) include 2,4-di-t-butyl-6-[1-(3,5-di-t-butyl-2-hydroxyphenyl)ethyl]phenyl (meth)acrylate, 2-t-butyl-6-(3-t-butyl-2-hydroxy-5-methylbenzyl)-4-methylphenyl (meth)acrylate, 2,4-di-t-pentyl-6-[1-(3,5-di-t-pentyl-2-hydroxyphenyl)ethyl]phenyl (meth)acrylate, 2,4-di-t-butyl-6-(3,5-di-t-butyl-2-hydroxy-benzyl)phenyl (meth)acrylate, 2-t-butyl-6-(3-t-butyl-2-hydroxy-5-methylbenzyl)-4-ethylphenyl (meth)acrylate, 2-t-pentyl-6-(3-t-pentyl-2-hydroxy-5-methylbenzyl)-4-methylphenyl (meth)acrylate and the like. Here, the “(meth)acrylate” means “acrylate and methacrylate”.


Preferable compound (1) is 2,4-di-t-pentyl-6-[1-(3,5-di-t-pentyl-2-hydroxyphenyl)ethyl]phenyl acrylate (hereinafter sometimes to be abbreviated as “compound (1-1)”), and 2-t-butyl-6-(3-t-butyl-2-hydroxy-5-methylbenzyl)-4-methylphenyl acrylate (hereinafter sometimes to be abbreviated as “compound (1-2)”). Compound (1-1) is commercially available as Sumilizer (registered trade mark) GS(F) (manufactured by Sumitomo Chemical Company, Limited), and compound (1-2) is commercially available as Sumilizer (registered trade mark) GM (manufactured by Sumitomo Chemical Company, Limited).


As compound (1), a commercially available product can be used, or it can be produced according to a known method (for example, the method described in JP-A-1-168643 or JP-A-58-84835).


Trehalose may be an anhydride or a hydrate, or a mixture thereof. The trehalose is commercially available, and a commercially available product can be directly used.


Only one kind of thermoplastic polymers may be used or two or more kinds thereof may be used in combination. Examples of the thermoplastic polymer include polyethylene resin (high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), ethylene-vinyl alcohol copolymer (EVOH), ethylene-ethyl acrylate copolymer (EEA), ethylene-vinyl acetate copolymer (EVA) and the like), polypropylene resin (crystalline propylene homopolymer, propylene-ethylene random copolymer, propylene-α-olefin random copolymer, propylene-ethylene-α-olefin copolymer, polypropylene block copolymer comprised of a block of propylene homopolymer or copolymer containing propylene as a main component and a block of copolymer of propylene and ethylene and/or other α-olefin, and the like), methylpentene polymer, polystyrene resin (polystyrenes such as polystyrene (PS), poly(p-methylstyrene), poly(α-methylstyrene) and the like, acrylonitrile-styrene copolymer (SAN), acrylonitrile-butadiene-styrene copolymer (ABS), special acrylic rubber-acrylonitrile-styrene copolymer, acrylonitrile-chlorinated polyethylene-styrene copolymer (ACS), styrene-ethylene-butylene-styrene block copolymer (SEBS), styrene-isoprene-styrene block copolymer (SIS) and the like), polybutadiene resin (polybutadiene; polybutadiene rubber (BR); styrene-butadiene copolymer (SB); styrene-butadiene block copolymer (SBS); impact resistance polystyrene (HI-PS) modified by polybutadiene, styrene-butadiene copolymer or SBS, styrene-butadiene thermoplastic elastomer and the like), chlorinated polyethylene (CPE), polychloroprene, chlorinated rubber, poly(vinyl chloride) thermoplastic elastomer, poly(vinyl chloride) (PVC), poly(vinylidene chloride) (PVDC), methacrylate resin, fluororesin, polyacetal (POM), grafted poly(phenylene ether) resin, poly(phenylene sulfide) resin (PPS), polyurethane (PU), polyamide (PA, also called as nylon (registered trade mark), for example, nylon 6 (Ny6), nylon 11 (Ny11), nylon 12 (Ny12), nylon 610 (Ny610), nylon 612 (Ny612), nylon MXD6 (NyMXD6)), polyester resin (e.g., poly(ethylene terephthalate) (PET), poly(butylene terephthalate) (PBT) and the like), poly(lactic acid) (PLA), polycarbonate (PC), polyacrylate, polysulfone (PPSU), poly(ether ether ketone) (PEEK), poly(ether sulfone) (PES), aromatic polyester, diallyl phthalate prepolymer, silicone resin (SI), 1,2-polybutadiene, polyisoprene, butadiene-acrylonitrile copolymer (NBR), ethylene-methyl methacrylate copolymer (EMMA) and the like.


Of these, due to good molding processability, polyethylene resin, polypropylene resin, polystyrene resin and polybutadiene resin are preferable, polyethylene resin and polybutadiene resin are more preferable, and styrene-butadiene block copolymer (SBS) is still more preferable.


While the weight average molecular weight (Mw) of the thermoplastic polymer to be used is not particularly limited, it is generally not less than 1000 and not more than 300,000. Mw can be measured by, for example, gel permeation chromatography (GPC) using polystyrene as a standard.


The total amount of compound (1) and trehalose in the first thermoplastic polymer composition is preferably 0.001-3 parts by weight, more preferably 0.02-2 parts by weight, still more preferably 0.02-1 part by weight, relative to 100 parts by weight of the thermoplastic polymer.


The weight ratio of compound (1) and trehalose in the first thermoplastic polymer composition (i.e., compound (1):trehalose) is preferably 1000:1-0.05:1. Compound (1):trehalose is more preferably 1000:1-0.1:1 from the aspect of processing stability of the thermoplastic polymer composition, and still more preferably 1000:1-0.5:1, particularly preferably 1000:1-1:1, from the aspect of suppression of color change of the thermoplastic polymer composition.


The first thermoplastic polymer composition may further contain compound (2). Only one kind of compound (2) may be used or two or more kinds thereof may be used in combination. In the following, compound (2) is explained successively.


Each R5 and/or each R6 in the formula (2) are/is independently a hydrogen atom or a C1-6 alkyl group. When n is two or more, R5 may be the same as or different from each other, and they are preferably the same. The same applies to R6. The C1-6 alkyl group may be a chain or a cyclic group, and the chain to may be a linear or branched chain. The C1-6 alkyl group includes a linear C1-6 alkyl group (a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group), a branched chain C3-6 alkyl group (e.g., an isopropyl group, an isobutyl group, a t-butyl group, an isopentyl group, a t-pentyl group, a t-hexyl group), and a cyclic C3-6 alkyl group (i.e., a C3-6 cycloalkyl group, for example, a cyclopentyl group, a cyclohexyl group). Preferably, each R5 and/or each R6 are/is independently a linear C1-6 alkyl group or branched chain C3-6 alkyl group, more preferably a methyl group or a t-butyl group. Still more preferably, each R5 and each R6 are t-butyl groups.


L1 in the formula (2) is an n-valent C1-24 alcohol residue optionally containing a hetero atom, and n is an integer of 1-4. Examples of the hetero atom include an oxygen atom, a sulfur atom, a nitrogen atom and the like. These hetero atoms may be replaced with the carbon atom of the n-valent C1-24 alcohol residue. That is, the n-valent C1-24 alcohol residue may have —O—, —S—, —NR— wherein R is a hydrogen atom or other substituent (for example, a C1-6 alkyl group)) and the like. As the hetero atom, an oxygen atom is preferable.


The n-valent C1-24 alcohol residue (n=1-4) may be a chain or a cyclic residue, or a combination of these. The chain may be a linear or branched chain.


Examples of the monovalent C1-24 alcohol residue include the residues of methanol, ethanol, propanol, isopropanol, butanol, t-butanol, hexanol, octanol, decanol, dodecanol, tetradecanol, hexadecanol, octadecanol and the like.


Examples of the divalent C1-24 alcohol residue include the residues of ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,8-octanediol, 1,10-decanediol, 1,12-dodecanediol, 1,14-tetradecanediol, 1,16-hexadecanediol, diethylene glycol, triethylene glycol, 3,9-bis(1,1-dimethyl-2-hydroxyethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane and the like.


Examples of the trivalent C1-24 alcohol residue include the residues of glycerol and the like.


Examples of the tetravalent C1-24 alcohol residue include the residues of erythritol, pentaerythritol and the like.


Examples of compound (2) include ester of 3-(3,5-di-t-butyl-4-hydroxyphenyl)propionic acid, 3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionic acid or 3-(3,5-dicyclohexyl-4-hydroxyphenyl)propionic acid and a monovalent or polyvalent alcohol. Examples of the aforementioned monovalent or polyvalent alcohol include methanol, ethanol, octanol, octadecanol, ethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, 1,9-nonanediol, neopentylglycol, diethylene glycol, thioethylene glycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate, N,N′-bis(hydroxyethyl)oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo[2,2,2]octane, 3,9-bis(1,1-dimethyl-2-hydroxyethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane, a mixture thereof and the like.


Preferable compound (2) is octadecyl 3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate (hereinafter sometimes to be abbreviated as “compound (2−1)”), 9-bis[2-{3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionyloxy}-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane (hereinafter sometimes to be abbreviated as “compound (2-2)”) and pentaerythritol tetrakis[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate] (hereinafter sometimes to be abbreviated as “compound (2-3)”). Compound (2-1) is commercially available as “Irganox (registered trade mark) 1076” (manufactured by BASF), compound (2-2) is commercially available as “Sumilizer (registered trade mark) GA-80” (manufactured by Sumitomo Chemical Company, Limited), and compound (2-3) is commercially available as “Irganox (registered trade mark) 1010” (manufactured by BASF).


As compound (2), a commercially available product can be used, or it can be produced according to a known method (for example, the method described in U.S. Pat. No. 3,330,859, U.S. Pat. No. 3,644,482 or JP-A-59-25826).


When the first thermoplastic polymer composition contains compound (2), the content of compound (2) is preferably 0.001-3 parts by weight, more preferably 0.02-2 parts by weight, relative to 100 parts of weight of the first thermoplastic polymer composition.


The first thermoplastic polymer composition may further contain at least one selected from the group consisting of compounds (3)-(7). Only one kind of compounds (3)-(7) may be used or two or more kinds thereof may be used in combination. In the following, compounds (3)-(7) are explained successively.


Each R7 and/or each R8 in the formula (3) are/is independently a hydrogen atom, a C1-9 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkylcycloalkyl group, a C7-12 aralkyl group or a phenyl group. While there are three R7, they may be the same as or different from each other, and they are preferably the same. The same applies to R8. The positions of R7 and R8 are preferably the 2-position and the 4-position.


The C1-9 alkyl group may be a linear or branched chain. The carbon number of the C1-9 alkyl group is preferably not less than 3 and not more than 5. Examples of the C1-9 alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a sec-butyl group, a t-butyl group, a pentyl group, a t-pentyl group, a 2-ethylhexyl group, a nonyl group and the like.


The C5-8 cycloalkyl group includes a cyclopentyl group, a cyclohexyl group, a cycloheptyl group and a cyclooctyl group.


Examples of the C6-12 alkylcycloalkyl group include a 1-methylcyclopentyl group, a 2-methylcyclopentyl group, a 1-methylcyclohexyl group, a 2-methylcyclohexyl group, a 1-methyl-4-isopropylcyclohexyl group and the like.


Examples of the C7-12 aralkyl group include a benzyl group, an α-methylbenzyl group (also to be referred to as a 1-phenylethyl group), an α,α-dimethylbenzyl group (also to be referred to as a 1-methyl-1-phenylethyl group or a cumyl group) and the like.


Preferably, each R7 and/or each R8 are/is independently a hydrogen atom or a C1-9 alkyl group, more preferably a hydrogen atom, a t-butyl group or a nonyl group, still more preferably a t-butyl group.


Examples of compound (3) include tris(2,4-di-t-butylphenyl) phosphite (hereinafter sometimes to be abbreviated as “compound (3-1)”), triphenyl phosphite, tris(4-nonylphenyl) phosphite, tris(2,4-dinonylphenyl) phosphite and the like. Of these, compound (3-1) is preferable. Compound (3-1) is commercially available as “Irgafos (registered trade mark) 168” (manufactured by BASF).


Each R9 in the formula (4) is independently a hydrogen atom, a C1-9 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkylcycloalkyl group, a C7-12 aralkyl group or a phenyl group.


While there are four R9, they may be the same as or different from each other, and they are preferably the same. Examples of the C1-9 alkyl group, C5-8 cycloalkyl group, C6-12 alkylcycloalkyl group and C7-12 aralkyl group for R9 include those mentioned above. Each R9 is preferably independently a hydrogen atom or a C1-9 alkyl group, more preferably a hydrogen atom.


Examples of compound (4) include tetrakis(2,4-di-t-butylphenyl)-4,4-biphenylene diphoshonite (hereinafter sometimes to be abbreviated as “compound (4-1)”), tetrakis(2,4-di-t-butyl-5-methylphenyl)-4,4-biphenylene diphoshonite (hereinafter sometimes to be abbreviated as “compound (4-2)”) and the like. Of these, compound (4-1) is preferable. Compound (4-1) is commercially available as “Sandostab (registered trade mark) P-EPQ” (manufactured by Clariant), and compound (4-2) is commercially available as “Yoshinox (registered trade mark) GSY-P101” (manufactured by API).


Each R10 in the formula (5) is independently a C1-18 alkyl group or a phenyl group. The phenyl group for R10 may have, as a substituent, at least one selected from the group consisting of a C1-9 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkylcycloalkyl group and a C7-12 aralkyl group. Examples of these substituents for phenyl group include those mentioned above. In addition, while there are two R10, they may be the same as or different from each other, and they are preferably the same.


The C1-18 alkyl group may be a linear or branched chain. The carbon number of the C1-18 alkyl group is preferably not less than 12 and not more than 18. Examples of the C1-18 alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a t-butyl group, a hexyl group, an octyl group, a decyl group, a dodecyl group, a tetradecyl group, a hexadecyl group, an octadecyl group and the like.


Examples of the phenyl group substituted by a C1-9 alkyl group include a 2-methylphenyl group, a 4-methylphenyl group, a 2-t-butylphenyl group, a 4-t-butylphenyl group, a 2-nonylphenyl group, a 4-nonylphenyl group, a 2,4-di-t-butylphenyl group, a 2,4-di-nonylphenyl group, a 2,6-di-t-butylphenyl group, a 2-t-butyl-4-methylphenyl group, a 2-t-butyl-4-ethylphenyl group, a 2,5-di-t-butylphenyl group, a 2,6-di-t-butyl-4-methylphenyl group and the like.


Examples of the phenyl group substituted by a C5-8 cycloalkyl group include a 2-cyclopentylphenyl group, a 2-cyclohexylphenyl group, a 4-cyclohexylphenyl group, a 2,4-dicyclohexylphenyl group and the like.


Examples of the phenyl group substituted by a C6-12 alkylcycloalkyl group include a 2-(2-methylcyclohexyl)phenyl group, a 4-(2-methylcyclohexyl)phenyl group, a 2,4-di-(2-methylcyclohexyl)phenyl group and the like.


Examples of the phenyl group substituted by a C7-12 aralkyl group include a 2-benzylphenyl group, a 2-cumylphenyl group, a 4-cumylphenyl group, a 2,4-dicumylphenyl group and the like.


Examples of the phenyl group substituted by a C1-9 alkyl group and a C5-8 cycloalkyl group include a 2-methyl-4-cyclohexylphenyl group and the like. Examples of the phenyl group substituted by a C1-9 alkyl group and a C6-12 alkylcycloalkyl group include a 2-methyl-4-(2-methylcyclohexyl)phenyl group and the like. Examples of the phenyl group substituted by a C1-9 alkyl group and a C7-12 aralkyl group include a 2-benzyl-4-methylphenyl group and the like.


Each R10 is preferably independently an octadecyl group (also to be referred to as a stearyl group), a 2,6-di-t-butyl-4-methylphenyl group, a 2,4-di-t-butylphenyl group or a 2,4-dicumylphenyl group.


Examples of compound (5) include bis(2,6-di-t-butyl-4-methylphenyl)pentaerythritol diphosphite (hereinafter sometimes to be abbreviated as “compound (5-1)”), bis(2,4-di-t-butylphenyl) pentaerythritol diphosphite (hereinafter sometimes to be abbreviated as “compound (5-2)”), bis(2,4-dicumylphenyl)pentaerythritol diphosphite (hereinafter sometimes to be abbreviated as “compound (5-3)”), distearylpentaerythritol diphosphite (hereinafter sometimes to be abbreviated as “compound (5-4)”), diisodecylpentaerythritol diphosphite, bis(2,4-di-t-butylphenyl)pentaerythritol diphosphite, bis(2,4-di-t-butyl-6-methylphenyl)pentaerythritol diphosphite, bis(2,4,6-tri-t-butylphenyl)pentaerythritol diphosphite and the like. Of these, compound (5-1), compound (5-2) and compound (5-3) are preferable. Compound (5-1) is commercially available as “Adekastab (registered trade mark) PEP-36” (manufactured by ADEKA), compound (5-2) is commercially available as “Ultranox (registered trade mark) 626” (manufactured by GE Plastics), compound (5-3) is commercially available as “Doverphos S9228T” (manufactured by Dover Chemical Corporation), and compound (5-4) is commercially available as “Adekastab (registered trade mark) PEP-8” (manufactured by ADEKA).


Each R11 and/or each R12 in the formula (6) are/is independently a hydrogen atom, a C1-9 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkylcycloalkyl group, a C7-12 aralkyl group or a phenyl group. Examples of the C1-9 alkyl group, C5-8 cycloalkyl group, C6-12 alkylcycloalkyl group and C7-12 aralkyl group for R11 or R12 include those mentioned above. While there are six R11, they may be the same as or different from each other, and they are preferably the same. The same applies to R12. The positions of R11 and R12 are preferably the 3-position and the 5-position, when the position of the carbon atom on the benzene ring to which L2 is bonded is the 1-position. Preferably, each R11 and/or each R12 are/is independently a C1-9 alkyl group, more preferably a t-butyl group.


Each L2 in the formula (6) is independently a single bond, a sulfur atom or a divalent group represented by the formula (6a). The total carbon number of R13 and R14 in the formula (6a) is not more than 7, and R13 and R14 are each independently a hydrogen atom or a alkyl group. While there are three L2, they may be the same as or different from each other, and they are preferably the same.


The alkyl group may be a linear or branched chain. The carbon number of the alkyl group is preferably not less than 1 and not more than 3. The total carbon number of R13 and R14 is preferably not more than 3. Examples of the C1-7 alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a sec-butyl group, a t-butyl group, a pentyl group, an isopentyl group, a neopentyl group, a t-pentyl group, a hexyl group, a heptyl group and the like.


Examples of the divalent group (6a) include —CH2—, —CH(CH3)—, —CH(C2H5)—, —C(CH3)2—, —CH(n-C3H7)— and the like.


Each L2 is preferably —CH2— or a single bond, more preferably a single bond.


Each L3 in the formula (6) is independently a C2-8 alkylene group. While there are three L3, they may be the same as or different from each other, and they are preferably the same.


Examples of the C2-8 alkylene group include an ethylene group, a propylene group (—CH(CH3)CH2—, —CH2CH(CH3)—), a trimethylene group, a tetramethylene group, a pentamethylene group, a hexamethylene group, an octamethylene group, a 2,2-dimethyl-1,3-propylene group and the like.


Each L3 is preferably independently an ethylene group or a trimethylene group, more preferably an ethylene group.


As compound (6), 6,6′,6″-[nitrilotris(ethyleneoxy)]tris(2,4,8,10-tetra-t-butyldibenzo[d,f][1,3,2]dioxaphosphepine) (hereinafter sometimes to be abbreviated as “compound (6-1)”) is preferable. Compound (6-1) is commercially available as “Irgafos (registered trade mark) 12” (manufactured by BASF).


Each R15 and/or each R16 in the formula (7) are/is independently a hydrogen atom, a C1-8 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkylcycloalkyl group, a C7-12 aralkyl group or a phenyl group. Examples of the alkyl group, C5-8 cycloalkyl group, C6-12 alkylcycloalkyl group and C7-12 aralkyl group for R15 or R16 include those mentioned above. While there are two R15, they may be the same as or different from each other, and they are preferably the same. The same applies to R16. The positions of R15 and R16 are preferably the 3-position and the 5-position, when the position of the carbon atom on the benzene ring to which L4 is bonded is the 1-position. That is, when the position of the carbon atom on the benzene ring to which Ois bonded is the 1-position, respectively, the 2-position and the 4-position are preferable. Preferably, each R15 and/or each R16 are/is independently a C1-9 alkyl group, more preferably a t-butyl group.


R17 in the formula (7) is a C1-9 alkyl group or a phenyl group. The phenyl group for R17 may have, as a substituent, at least one selected from the group consisting of a C1-9 alkyl group, a C5-9 cycloalkyl group, a C6-12 alkylcycloalkyl group and a C7-12 aralkyl group. Examples of the C1-8 alkyl group and the phenyl group having a substituent for R17 include those mentioned above. The carbon number of the C1-8 alkyl group for R17 is preferably not less than 4 and not more than 8. R17 is preferably a C1-8 alkyl group, more preferably an octyl group.


L4 in the formula (7) is a single bond, a sulfur atom or a divalent group represented by the formula (7a). The total carbon number of R18 and R19 in the formula (7a) is not more than 7, and R18 and R19 are each independently a hydrogen atom or a C1-7 alkyl group. Examples of the C1-7 alkyl group for R18 or R19 include those mentioned above. The total carbon number for R18 or R19 is preferably not more than 3. Specific examples of the divalent group (7a) include those recited for the divalent group (6a). L4 is preferably —CH2— or a single bond, more preferably —CH2—.


Examples of compound (7) include 2,2-methylenebis(4,6-di-t-butylphenyl) octyl phosphite (hereinafter sometimes to be abbreviated as “compound (7-1)”) and 2,2′-methylenebis(4,6-di-t-butylphenyl) 2-ethylhexyl phosphite. Of these, compound (7-1) is preferable. Compound (7-1) is commercially available as “Adekastab (registered trade mark) HP-10” (manufactured by ADEKA).


Among compounds (3)-(7), compound (3) is preferable, and compound (3-1) is more preferable.


When the first thermoplastic polymer composition contains at least one selected from the group consisting of compounds (3)-(7), the total amount of the compounds selected from the group consisting of compounds (3)-(7) is preferably 0.001-3 parts by weight, more preferably 0.02-2 parts by weight, relative to 100 parts of weight of the first thermoplastic polymer composition.


Next, the second thermoplastic polymer composition is explained. The second thermoplastic polymer composition contains compound (8), trehalose and a thermoplastic polymer. Only one kind of compound (8) may be used or two or more kinds thereof may be used in combination. Explanations of trehalose and the thermoplastic polymer in the second thermoplastic polymer composition are the same as those mentioned above. In the following, compound (8) is explained successively.


Each R20 and/or each R21 in the formula (8) are/is independently a hydrogen atom, a C1-8 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkylcycloalkyl group, a C7-12 aralkyl group or a phenyl group. R23 and R24 in the formula (8) are each independently a hydrogen atom, a C1-8 alkyl group, a C5-8 cycloalkyl group, a C6-12 alkylcycloalkyl group, a C7-12 aralkyl group or a phenyl group. While there are two R20, they may be the same as or different from each other, and they are preferably the same. The same applies to R21.


The C1-8 alkyl group may be a linear or branched chain. The carbon number of the C1-8 alkyl group is preferably not less than 1 and not more than 5. Examples of the C1-8 alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a sec-butyl group, a t-butyl group, a t-pentyl group, an isooctyl group (also to be referred to as a 6-methylheptyl group), a t-octyl group (also to be referred to as a 1,1,3,3-tetramethylbutyl group), a 2-ethylhexyl group and the like.


The C5-8 cycloalkyl group includes a cyclopentyl group, a cyclohexyl group, a cycloheptyl group and a cyclooctyl group.


Examples of the C6-12 alkylcycloalkyl group include a 1-methylcyclopentyl group, a 2-methylcyclopentyl group, a 1-methylcyclohexyl group, a 2-methylcyclohexyl group, a 1-methyl-4-isopropylcyclohexyl group and the like.


Examples of the C7-12 aralkyl group include a benzyl group, α-methylbenzyl group (also to be referred to as a 1-phenylethyl group), an α,α-dimethylbenzyl group (also to be referred to as a 1-methyl-1-phenylethyl group or a cumyl group) and the like.


Preferably, each R20 and/or R23 are/is independently a C1-8 alkyl group (more preferably a C4-8 alkyl group having a tertiary carbon atom), a C5-6 cycloalkyl group (more preferably a cyclohexyl group) or a C6-12 alkylcycloalkyl group (more preferably a 1-methylcyclohexyl group). As the C4-8 alkyl group having a tertiary carbon atom, a t-butyl group, a t-pentyl group and a t-octyl group are still more preferable.


Each R21 is preferably independently a C1-8 alkyl group, a C5-8 cycloalkyl group or a C6-12 alkylcycloalkyl group, more preferably a C1-5 alkyl group. The C1-5 alkyl group may be a linear or branched chain. Examples of the C1-5 alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a sec-butyl group, a t-butyl group, a t-pentyl group and the like. More preferably, each R21 is independently a methyl group, a t-butyl group or a t-pentyl group.


R24 is preferably a hydrogen atom or a C1-5 alkyl group, more preferably a hydrogen atom or a methyl group. Examples of the C1-5 alkyl group for R24 include those mentioned above.


Each R22 in the formula (8) is independently a hydrogen atom or a C1-8 alkyl group. While there are two R22, they may be the same as or different from each other, and they are preferably the same. Each R22 is preferably a hydrogen atom or a C1-5 alkyl group, more preferably a methyl group or a hydrogen atom. Examples of the C1-8 alkyl group and C1-5 alkyl group for R22 include those mentioned above.


L5 in the formula (8) is a single bond, a sulfur atom or a divalent group represented by the formula (8a). R25 in the formula (8a) is a hydrogen atom, a C1-8 alkyl group or a C5-8 cycloalkyl group. R25 is preferably a hydrogen atom or a C1-5 alkyl group. Examples of the C1-8 alkyl group, C1-5 alkyl group and C5-8 cycloalkyl group for R25 include those mentioned above. L5 is preferably a single bond or the divalent group (8a), more preferably a single bond.


L6 in the formula (8) is a C2-8 alkylene group or a divalent group represented by the formula (8b). L7 in the formula (8b) is a single bond or a C1-8 alkylene group. The C2-8 alkylene group and C1-8 alkylene group may be each a linear or branched chain. Examples of the C2-8 alkylene group include an ethylene group, a propylene group (—CH(CH3)CH2—, —CH2CH(CH3)—), a trimethylene group, a tetramethylene group, a pentamethylene group, a hexamethylene group, an octamethylene group, a 2,2-dimethyl-1,3-propylene group and the like. Examples of the C1-8 alkylene group include a methylene group, the aforementioned C2-8 alkylene group and the like.


L6 is preferably a C2-8 alkylene group, the divalent group (8b) wherein L7 is a single bond (i.e., a carbonyl group), or the divalent group (8b) wherein L7 is an ethylene group; more preferably a C2-8 alkylene group; and still more preferably a trimethylene group.


One of Z1 and Z2 in the formula (8) is a hydroxy group, a C1-8 alkyl group, a C1-8 alkoxy group or a C7-12 aralkyloxy group, and the other is a hydrogen atom or a C1-8 alkyl group. Examples of the C1-8 alkyl group for Z1 and Z2 include those mentioned above.


The C1-8 alkoxy group may be a linear or branched chain. Examples of the C1-8 alkoxy group include a methoxy group, an ethoxy group, a propoxy group, an isopropoxy group, a butoxy group, an isobutoxy group, a sec-butoxy group, a t-butoxy group, a t-pentyloxy group, an isooctyloxy group (also to be referred to as a 6-methylheptyloxy group), a t-octyloxy group (also to be referred to as a 1,1,3,3-tetramethylbutyloxy group), a 2-ethylhexyloxy group and the like.


Examples of the C7-12 aralkyloxy group include a benzyloxy group, an α-methylbenzyloxy group, an α,α-dimethylbenzyloxy group and the like.


Preferably, one of Z1 and Z2 is a hydroxy group, and the other is a hydrogen atom.


A preferable combination of the substituents is a combination wherein each R20 and/or R23 are/is independently a C4-8 alkyl group having a tertiary carbon atom, cyclohexyl or a 1-methylcyclohexyl group, each R21 is independently a C1-5 alkyl group, each R22 is independently a hydrogen atom or a C1-5 alkyl group, R24 is a hydrogen atom or a C1-5 alkyl group, L5 is a single bond, L6 is a C2-8 alkylene group, and one of Z1 and Z2 is a hydroxy group and the other is a hydrogen atom. In this preferable combination, each R20 is more preferably the same. The same applies to each R21 and each R22. In addition, in this preferable combination, each R20, each R22 and R23 are all still more preferably t-butyl groups or t-pentyl groups (particularly t-butyl groups).


Examples of compound (8) include 6-[3-(3-t-butyl-4-hydroxy-5-methylphenyl)propoxy]-2,4,8,10-tetra-t-butyldibenzo[d,f][1,3,2]dioxaphosphepine, 2,10-dimethyl-4,8-di-t-butyl-6-[3-(3,5-di-t-butyl-4-hydroxyphenyl)propoxy]-12H-dibenzo[d,g][1,3,2]dioxaphosphocin, 2,4,8,10-tetra-t-butyl-6-[3-(3,5-di-t-butyl-4-hydroxyphenyl)propoxy]dibenzo[d,f][1,3,2]dioxaphosphepine, 2,4,8,10-tetra-t-pentyl-6-[3-(3,5-di-t-butyl-4-hydroxyphenyl)propoxy]-12-methyl-12H-dibenzo[d,g][1,3,2]dioxaphosphocin, 2,10-dimethyl-4,8-di-t-butyl-6-[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionyloxy]-12H-dibenzo[d,g][1,3,2]dioxaphosphocin, 2,4,8,10-tetra-t-pentyl-6-[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionyloxy]-12-methyl-12H-dibenzo[d,g][1,3,2]dioxaphosphocin, 2,4,8,10-tetra-t-butyl-6-[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionyloxy]-dibenzo[d,f][1,3,2]dioxaphosphepine, 2,10-dimethyl-4,8-di-t-butyl-6-(3,5-di-t-butyl-4-hydroxybenzoyloxy)-12H-dibenzo[d,g][1,3,2]dioxaphosphocin, 2,4,6,10-tetra-t-butyl-6-(3,5-di-t-butyl-4-hydroxybenzoyloxy)-12-methyl-12H-dibenzo[d,g][1,3,2]dioxaphosphocin, 2,10-dimethyl-4,8-di-t-butyl-6-[3-(3-methyl-4-hydroxy-5-t-butylphenyl)propoxy]-12H-dibenzo[d,g][1,3,2]dioxaphosphocin, 2,4,8,10-tetra-t-butyl-6-[3-(3,5-di-t-butyl-4-hydroxyphenyl)propoxy]-12H-dibenzo[d,g][1,3,2]dioxaphosphocin, 2,10-diethyl-4,8-di-t-butyl-6-[3-(3,5-di-t-butyl-4-hydroxyphenyl)propoxy]-12H-dibenzo[d,g][1,3,2]dioxaphosphocin, 2,4,8,10-tetra-t-butyl-6-[2,2-dimethyl-3-(3-t-butyl-4-hydroxy-5-methylphenyl)propoxy]-dibenzo[d,f][1,3,2]dioxaphosphepine and the like.


Of compound (8), 6-[3-(3-t-butyl-4-hydroxy-5-methylphenyl)propoxy]-2,4,8,10-tetra-t-butyldibenzo[d,f][1,3,2]dioxaphosphepine (hereinafter sometimes to be abbreviated as “compound (8-1)”) is preferable. Compound (8-1) is commercially available as “Sumilizer (registered trade mark) GP” (manufactured by Sumitomo Chemical Company, Limited).


As compound (8), a commercially available product can be used, or it can be produced according to a known method (for example, the method described in JP-A-10-273494).


The total amount of compound (8) and trehalose in the second thermoplastic polymer composition is preferably 0.001-3 parts by weight, more preferably 0.02-2 parts by weight, still more preferably 0.02-1 part by weight, relative to 100 parts by weight of the thermoplastic polymer.


The weight ratio of compound (8) and trehalose in the second thermoplastic polymer composition (i.e., compound (8):trehalose) is preferably 1000:1-0.05:1. Compound (8):trehalose is more preferably 1000:1-0.1:1 from the aspect of processing stability of a thermoplastic polymer composition, and still more preferably 1000:1-0.5:1, particularly preferably 1000:1-1:1, from the aspect of suppression of color change of a thermoplastic polymer composition.


The second thermoplastic polymer composition may further contain compound (2). Only one kind of compound (2) may be used or two or more kinds thereof may be used in combination. Explanations of compound (2) are the same as those mentioned above.


When the second thermoplastic polymer composition contains compound (2), the content of compound (2) is preferably 0.001-3 parts by weight, more preferably 0.02-2 parts by weight, relative to 100 parts by weight of the second thermoplastic polymer composition.


The second thermoplastic polymer composition may further contain at least one selected from the group consisting of compounds (3)-(7). Only one kind of compounds (3)-(7) may be used or two or more kinds thereof may be used in combination. Explanations of compounds (3)-(7) are the same as those mentioned above.


When the second thermoplastic polymer composition contains at least one selected from the group consisting of compounds (3)-(7), the total amount of the compounds selected from the group consisting of compounds (3)-(7) is preferably 0.001-3 parts by weight, more preferably 0.02-2 parts by weight, relative to 100 parts by weight of the second thermoplastic polymer composition.


Next, the third thermoplastic polymer composition is explained. The third thermoplastic polymer composition contains compound (2), trehalose and a thermoplastic polymer. Only one kind of compound (2) may be used or two or more kinds thereof may be used in combination. Explanations of compound (2), trehalose and the thermoplastic polymer in the third thermoplastic polymer composition are the same as those mentioned above.


The total amount of compound (2) and trehalose in the third thermoplastic polymer composition is preferably 0.001-3 parts by weight, more preferably 0.02-2 parts by weight, still more preferably 0.02-1 part by weight, relative to 100 parts by weight of the thermoplastic polymer.


The weight ratio of compound (2) and trehalose in the third thermoplastic polymer composition (i.e., compound (2):trehalose) is preferably 1000:1-0.05:1. Compound (2):trehalose is more preferably 1000:1-0.1:1 from the aspect of processing stability of a thermoplastic polymer composition, and still more preferably 1000:1-0.5:1, particularly preferably 1000:1-1:1, from the aspect of suppression of color change of a thermoplastic polymer composition.


The third thermoplastic polymer composition may further contain compound (1). Only one kind of compound (1) may be used or two or more kinds thereof may be used in combination. Explanations of compound (1) are the same as those mentioned above.


The third thermoplastic polymer composition may further contain at least one selected from the group consisting of compounds (3)-(7). Only one kind of compounds (3)-(7) may be used or two or more kinds thereof may be used in combination. Explanations of compounds (3)-(7) are the same as those mentioned above.


The third thermoplastic polymer composition may further contain compound (8). Only one kind of compound (8) may be used or two or more kinds thereof may be used in combination. Explanations of compound (8) are the same as those mentioned above.


Of compound (1) and compounds (3)-(8) usable for the third thermoplastic polymer composition, compound (1), compound (3) and compound (8) are preferable.


When the third thermoplastic polymer composition contains at least one of compound (1) and compounds (3)-(8), the content of each of compound (1) and compounds (3)-(8) is preferably 0.001-3 parts by weight, more preferably 0.02-2 parts by weight, relative to 100 parts by weight of the third to thermoplastic polymer composition.


Next, the fourth thermoplastic polymer composition is explained. The fourth thermoplastic polymer composition contains trehalose, a thermoplastic polymer and at least one selected from the group consisting of compounds (3)-(7) (i.e., organic phosphorous compound). Only one kind of compounds (3)-(7) may be used or two or more kinds thereof may be used in combination. Explanations of compounds (3)-(7) and the thermoplastic polymer in the fourth thermoplastic polymer composition are the same as those mentioned above.


The total amount of trehalose and the compound selected from the group consisting of compounds (3)-(7) in the fourth thermoplastic polymer composition is preferably 0.001-3 parts by weight, more preferably 0.02-2 parts by weight, still more preferably 0.02-1 part by weight, relative to 100 parts by weight of the thermoplastic polymer.


The weight ratio of the compound selected from the group consisting of compounds (3)-(7) and trehalose in the fourth thermoplastic polymer composition (i.e., compound selected from the group consisting of compounds (3)-(7):trehalose) is preferably 1000:1-0.05:1. The compound selected from the group consisting of compounds (3)-(7):trehalose is more preferably 1000:1-0.1:1 from the aspect of processing stability of a thermoplastic polymer composition, and still more preferably 1000:1-0.5:1, particularly preferably 1000:1-1:1, from the aspect of suppression of color change of a thermoplastic polymer composition.


The fourth thermoplastic polymer composition may further contain at least one selected from the group consisting of compound (1), compound (2) and compound (8). Only one kind of each of compound (1), compound (2) and compound (8) may be used or two or more kinds thereof may be used in combination. Explanations of compound (1), compound (2) and compound (8) are the same as those mentioned above.


When the fourth thermoplastic polymer composition contains at least one of compound (1), compound (2) and compound (8), the content of each of compound (1), compound (2) and compound (8) is preferably 0.001-3 parts by weight, more preferably 0.02-2 parts by weight, relative to 100 parts by weight of the fourth thermoplastic polymer composition.


The thermoplastic polymer composition of the present invention (i.e., the first-fourth thermoplastic polymer compositions) may contain additives other than the above-mentioned components (hereinafter to be abbreviated as “other additives”). Only one kind of other additives may be used or two or more kinds thereof may be used in combination. Examples of other additive include antioxidant, UV absorber, light stabilizer, stabilizer, lubricant, metal deactivator, nucleating agent, antistatic agent, flame-retardant, filler, pigment, inorganic filler and the like.


Examples of the antioxidant include phenol antioxidant (excluding compound (1) and compound (2)), sulfur antioxidant, phosphorus antioxidant (excluding compounds (3)-(8)), hydroquinone antioxidant and the like.


Examples of the phenol antioxidant include those described in the following [1]-[16] and the like.


[1] alkylated monophenol such as 2,6-di-t-butyl-4-methylphenol, 2,4,6-tri-t-butylphenol, 2,6-di-t-butylphenol, 2-t-butyl-4,6-dimethylphenol, 2,6-di-t-butyl-4-ethylphenol, 2,6-di-t-butyl-4-n-butylphenol, 2,6-di-t-butyl-4-isobutylphenol, 2,6-dicyclopentyl-4-methylphenol, 2-(α-methylcyclohexyl)-4,6-dimethylphenol, 2,6-dioctadecyl-4-methylphenol, 2,4,6-tricyclohexylphenol, 2,6-di-t-butyl-4-methoxymethylphenol, 2,6-di-nonyl-4-methylphenol, 2,4-dimethyl-6-(1′-methylundecyl-1′-yl)phenol, 2,4-dimethyl-6-(1′-methylheptadecyl-1′-yl)phenol, 2,4-dimethyl-6-(1′-methyltridecyl-1′-yl)phenol and the like.


[2] alkylthiomethylphenol such as 2,4-bis(octylthiomethyl)-6-t-butylphenol, 2,4-bis(octylthiomethyl)-6-methylphenol, 2,4-bis(octylthiomethyl)-6-ethylphenol, 2,6-bis(dodecylthiomethyl)-4-nonylphenol and the like.


[3] alkylidene bisphenol and derivatives thereof such as 2,2′-methylenebis(4-methyl-6-t-butylphenol), 2,2′-methylenebis(4-ethyl-6-t-butylphenol), 2,2′-methylenebis[4-methyl-6-(α-methylcyclohexyl)phenol], 2,2′-methylenebis(4-methyl-6-cyclohexylphenol), 2,2′-methylenebis(4-methyl-6-nonylphenol), 2,2′-methylenebis(4,6-di-t-butylphenol), 2,2′-ethylidenebis(4,6-di-t-butylphenol), 2,2′-ethylidenebis(4-isobutyl-6-t-butylphenol), 2,2′-methylenebis[6-(α-methylbenzyl)-4-nonylphenol], 2,2′-methylenebis[6-(α,α-dimethylbenzyl)-4-nonylphenol], 4,4′-methylenebis(6-t-butyl-2-methylphenol), 4,4′-methylenebis(2,6-di-t-butylphenol), 4,4′-butylidenebis(3-methyl-6-t-butylphenol), 1,1-bis(4-hydroxyphenyl)cyclohexane, 1,1-bis(5-t-butyl-4-hydroxy-2-methylphenyl)butane, 2,6-bis(3-t-butyl-5-methyl-2-hydroxybenzyl)-4-methylphenol, 1,1,3-tris(5-t-butyl-4-hydroxy-2-methylphenyl)butane, 1,1-bis(5-t-butyl-4-hydroxy-2-methylphenyl)-3-n-dodecylmercaptobutane, ethylene glycol bis[3,3-bis(3′-t-butyl-4′-hydroxyphenyl)butyrate], bis(3-t-butyl-4-hydroxy-5-methylphenyl)dicyclopentadiene, bis[2-(3′-t-butyl-2′-hydroxy-5′-methylbenzyl)-6-t-butyl-4-methylphenyl]terephthalate, 1,1-bis(3,5-dimethyl-2-hydroxyphenyl)butane, 2,2-bis(3,5-di-t-butyl-4-hydroxyphenyl)propane, 2,2-bis(5-t-butyl-4-hydroxy-2-methylphenyl)-4-n-dodecylmercaptobutane, 1,1,5,5-tetra(5-t-butyl-4-hydroxy-2-methylphenyl)pentane and the like.


[4] acylaminophenol derivative such as 4-hydroxylauryl anilide, 4-hydroxystearic anilide, octyl-N-(3,5-di-t-butyl-4-hydroxyphenyl)carbamate and the like.


[5] ester of β-(3,5-di-t-butyl-4-hydroxyphenyl)propionic acid and a monovalent or polyvalent alcohol (e.g., methanol, ethanol, octanol, octadecanol, ethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, 1,9-nonanediol, neopentylglycol, diethylene glycol, thioethylene glycol, spiroglycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate, N,N″-bis(hydroxyethyl)oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo[2,2,2]octane or a mixture thereof and the like).


[6] bis(hydroxyphenyl)sulfide such as 2,2′-thiobis(6-t-butylphenol), 2,2′-thiobis(4-methyl-6-t-butylphenol), 2,2′-thiobis(4-octylphenol), 4,4′-thiobis(2-methyl-6-t-butylphenol), 4,4′-bis(2,6-dimethyl-4-hydroxyphenyl)sulfide and the like.


[7] 0-benzyl derivative, N-benzyl derivative and S-benzyl derivative such as 3,5,3′,5′-tetra-t-butyl-4,4′-dihydroxydibenzyl ether, octadecyl 4-hydroxy-3,5-dimethylbenzylmercaptoacetate, tris(3,5-di-t-butyl-4-hydroxybenzyl)amine, bis(4-t-butyl-3-hydroxy-2,6-dimethylbenzyl) dithioterephthalate, bis(3,5-di-t-butyl-4-hydroxybenzyl)sulfide, isooctyl 3,5-di-t-butyl-4-hydroxybenzylmercaptoacetate and the like.


[8] triazine derivative such as 2,4-bis(n-octylthio)-6-(4-hydroxy-3,5-di-t-butylanilino)-1,3,5-triazine, 2-n-octylthio-4,6-bis(4-hydroxy-3,5-di-t-butylanilino)-1,3,5-triazine, 2-n-octylthio-4,6-bis(4-hydroxy-3,5-di-t-butylphenoxy)-1,3,5-triazine, 2,4,6-tris(3,5-di-t-butyl-4-phenoxy)-1,3,5-triazine, tris(4-t-butyl-3-hydroxy-2,6-dimethylbenzyl)isocyanurate, tris(3,5-di-t-butyl-4-hydroxybenzyl)isocyanurate, 2,4,6-tris(3,5-di-t-butyl-4-hydroxyphenylethyl)-1,3,5-triazine, 2,4,6-tris(3,5-di-t-butyl-4-hydroxyphenylpropyl)-1,3,5-triazine, tris(3,5-dicyclohexyl-4-hydroxybenzyl)isocyanurate, tris[2-(3′,5′-di-t-butyl-4′-hydroxycinnamoyloxy)ethyl]isocyanurate and the like.


[9] hydroxybenzylated malonate derivative such as dioctadecyl 2,2-bis(3,5-di-t-butyl-2-hydroxybenzyl)malonate, dioctadecyl 2-(3-t-butyl-4-hydroxy-5-methylbenzyl)malonate, didodecylmercaptoethyl 2,2-bis(3,5-di-t-butyl-4-hydroxybenzyl)malonate, bis[4-(1,1,3,3-tetramethylbutyl)phenyl] 2,2-bis(3,5-di-t-butyl-4-hydroxybenzyl)malonate and the like.


[10] aromatic hydroxybenzyl derivative such as 1,3,5-trimethyl-2,4,6-tris(3,5-di-t-butyl-4-hydroxybenzyl)benzene, 1,4-bis(3,5-di-t-butyl-4-hydroxybenzyl)-2,3,5,6-tetramethylbenzene, 2,4,6-tris(3,5-di-t-butyl-4-hydroxybenzyl)phenol and the like.


[11] benzylphosphonate derivative such as dimethyl 3,5-di-t-butyl-4-hydroxybenzylphosphonate, diethyl 3,5-di-t-butyl-4-hydroxybenzylphosphonate, dioctadecyl 3,5-di-t-butyl-4-hydroxybenzylphosphonate, dioctadecyl 5-t-butyl-4-hydroxy-3-methylbenzylphosphonate, calcium salt of 3,5-di-t-butyl-4-hydroxybenzylphosphonic acid monoester and the like.


[12] ester of β-(5-t-butyl-4-hydroxy-3-methylphenyl)propionic acid and a monovalent or polyvalent alcohol (e.g., methanol, ethanol, octanol, octadecanol, ethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, 1,9-nonanediol, neopentylglycol, diethylene glycol, thioethylene glycol, spiroglycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate, N,N′-bis(hydroxyethyl)oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo[2,2,2]octane or a mixture thereof and the like).


[13] ester of β-(3,5-dicyclohexyl-4-hydroxyphenyl)propionic acid and a monovalent or polyvalent alcohol (e.g., methanol, ethanol, octanol, octadecanol, ethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, 1,9-nonanediol, neopentylglycol, diethylene glycol, thioethylene glycol, spiroglycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate, N,N′-bis(hydroxyethyl)oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo[2,2,2]octane or a mixture thereof and the like).


[14] ester of 3,5-di-t-butyl-4-hydroxyphenylacetic acid and a monovalent or polyvalent alcohol (e.g., methanol, ethanol, octanol, octadecanol, ethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, 1,9-nonanediol, neopentylglycol, diethylene glycol, thioethylene glycol, spiroglycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate, N,N′-bis(hydroxyethyl)oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo[2,2,2]octane or a mixture thereof).


[15] amide of β-(3,5-di-t-butyl-4-hydroxyphenyl)propionic acid such as N,N′-bis[3-(3′,5′-di-t-butyl-4′-hydroxyphenyl)propionyl]hydrazine, N,N′-bis[3-(3′,5′-di-t-butyl-4′-hydroxyphenyl)propionyl]hexamethylenediamine, N,N′-bis[3-(3′,5′-di-t-butyl-4′-hydroxyphenyl)propionyl]trimethylenediamine and the like.


[16] tocopherols such as α-tocopherol, β-tocopherol, γ-tocopherol, δ-tocopherol and the like.


Examples of the sulfur antioxidant include dilauryl 3,3′-thiodipropionate, tridecyl 3,3′-thiodipropionate, dimyristyl 3,3′-thiodipropionate, distearyl 3,3′-thiodipropionate, lauryl stearyl 3,3′-thiodipropionate, neopentanetetrakis(3-lauryl thiopropionate) and the like.


Examples of the phosphorus antioxidant include trilauryl phosphite, trioctadecyl phosphite, tristearylsorbitol triphosphite, 2,2′-ethylidenebis(4,6-di-t-butylphenyl) fluorophosphite, bis(2,4-di-t-butyl-6-methylphenyl)ethyl phosphite, bis(2,4-di-t-butyl-6-methylphenyl)methyl phosphite, 2-(2,4,6-tri-t-butylphenyl)-5-ethyl-5-butyl-1,3,2-oxaphosphorinan and the like.


Examples of the hydroquinone antioxidant include 2,6-di-t-butyl-4-methoxyphenol, 2,5-di-t-butylhydroquinone, 2,5-di-t-pentylhydroquinone, 2,6-diphenyl-4-octadecyloxyphenol, 2,6-di-t-butylhydroquinone, 2,5-di-t-butyl-4-hydroxyanisole, 3,5-di-t-butyl-4-hydroxyphenyl stearate, bis(3,5-di-t-butyl-4-hydroxyphenyl) adipate and the like.


Examples of the UV absorber include those described in the following [1]-[3] and the like.


[1] salicylate derivative such as phenyl salicylate, 4-t-butylphenyl salicylate, 2,4-di-t-butylphenyl 3′,5′-di-t-butyl-4′-hydroxybenzoate, 4-t-octylphenyl salicylate, bis(4-t-butylbenzoyl)resorcinol, benzoylresorcinol, hexadecyl 3′,5′-di-t-butyl-4′-hydroxybenzoate, octadecyl 3′,5′-di-t-butyl-4′-hydroxybenzoate, 2-methyl-4,6-di-t-butylphenyl 3′,5′-di-t-butyl-4′-hydroxybenzoate and the like.


[2] 2-hydroxybenzophenone derivative such as 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octoxybenzophenone, 2,2′-dihydroxy-4-methoxybenzophenone, bis(5-benzoyl-4-hydroxy-2-methoxyphenyl)methane, 2,2′,4,4′-tetrahydroxybenzophenone and the like.


[3] 2-(2′-hydroxyphenyl)benzotriazoles such as 2-(2-hydroxy-5-methylphenyl)benzotriazole, 2-(3′,5′-di-t-butyl-2′-hydroxyphenyl)benzotriazole, 2-(5′-t-butyl-2′-hydroxyphenyl)benzotriazole, 2-(2′-hydroxy-5′-t-octylphenyl)benzotriazole, 2-(3-t-butyl-2-hydroxy-5-methylphenyl)-5-chlorobenzotriazole, 2-(3′-sec-butyl-2′-hydroxy-5′-t-butylphenyl)benzotriazole, 2-(2′-hydroxy-4′-octyloxyphenyl)benzotriazole, 2-(3′,5′-di-t-pentyl-2′-hydroxyphenyl)benzotriazole, 2-[2′-hydroxy-3′,5′-bis(α,α-dimethylbenzyl)phenyl]-2H-benzotriazole, 2-[(3′-t-butyl-2′-hydroxyphenyl)-5′-(2-octyloxycarbonylethyl)phenyl]-5-chlorobenzotriazole, 2-[3′-t-butyl-5′-[2-(2-ethylhexyloxy)carbonylethyl]-2′-hydroxyphenyl]-5-chlorobenzotriazole, 2-[3′-t-butyl-2′-hydroxy-5′-(2-methoxycarbonylethyl)phenyl]-5-chlorobenzotriazole, 2-[3′-t-butyl-2′-hydroxy-5′-(2-methoxycarbonylethyl)phenyl]benzotriazole, 2-[3′-t-butyl-2′-hydroxy-5-(2-octyloxycarbonylethyl)phenyl]benzotriazole, 2-[3′-t-butyl-2′-hydroxy-5′-[2-(2-ethylhexyloxy)carbonylethyl]phenyl]benzotriazole, 2-[2-hydroxy-3-(3,4,5,6-tetrahydrophthalimidomethyl)-5-methylphenyl]benzotriazole, 2-(3,5-di-t-butyl-2-hydroxyphenyl)-5-chlorobenzotriazole, mixture of 2-(3′-dodecyl-2′-hydroxy-5′-methylphenyl)benzotriazole and 2-[3′-t-butyl-2′-hydroxy-5′-(2-isooctyloxycarbonylethyl)phenyl]benzotriazole, 2,2′-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol], 2,2′-methylenebis[4-t-butyl-6-(2H-benzotriazol-2-yl)phenol], condensate of poly(3-11) (ethylene glycol) and 2-[3′-t-butyl-2′-hydroxy-5′-(2-methoxycarbonylethyl)phenyl]benzotriazole, condensate of poly(3-11) (ethylene glycol) and methyl 3-[3-(2H-benzotriazol-2-yl)-5-t-butyl-4-hydroxyphenyl]propionate, 2-ethylhexyl 3-[3-t-butyl-5-(5-chloro-2H-benzotriazol-2-yl)-4-hydroxyphenyl]propionate, octyl 3-[3-t-butyl-5-(5-chloro-2H-benzotriazol-2-yl)-4-hydroxyphenyl]propionate, methyl 3-[3-t-butyl-5-(5-chloro-2H-benzotriazol-2-yl)-4-hydroxyphenyl]propionate, 3-[3-t-butyl-5-(5-chloro-2H-benzotriazol-2-yl)-4-hydroxyphenyl]propionic acid and the like.


Examples of the light stabilizer include those described in the following [1]-[5] and the like.


[1] hindered amine light stabilizer, for example, those described in the following [a]-[c].


[a] bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis(2,2,6,6-tetramethyl-4-piperidyl) succinate, bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, bis(N-octoxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis(N-benzyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis(N-cyclohexyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis(1,2,2,6,6-pentamethyl-4-piperidyl) 2-(3,5-di-t-butyl-4-hydroxybenzyl)-2-butylmalonate, bis(1-acryloyl-2,2,6,6-tetramethyl-4-piperidyl) 2,2-bis(3,5-di-t-butyl-4-hydroxybenzyl)malonate, bis(1,2,2,6,6-pentamethyl-4-piperidyl) decanedioate, 2,2,6,6-tetramethyl-4-piperidyl methacrylate, 4-[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionyloxy]-1-[2-(3-(3,5-di-t-butyl-4-hydroxyphenyl)propionyloxy)ethyl]-2,2,6,6-tetramethylpiperidine, 2-methyl-2-(2,2,6,6-tetramethyl-4-piperidyl)amino-N-(2,2,6,6-tetramethyl-4-piperidyl)propionamide, tetrakis(2,2,6,6-tetramethyl-4-piperidyl) 1,2,3,4-butanetetracarboxylate, tetrakis(1,2,2,6,6-pentamethyl-4-piperidyl) 1,2,3,4-butanetetracarboxylate.


[b] mixed ester of 1,2,3,4-butanetetracarboxylic acid and 1,2,2,6,6-pentamethyl-4-piperidinol and 1-tridecanol, mixed ester of 1,2,3,4-butanetetracarboxylic acid and 2,2,6,6-tetramethyl-4-piperidinol and 1-tridecanol, mixed ester of 1,2,3,4-butanetetracarboxylic acid and 1,2,2,6,6-pentamethyl-4-piperidinol and 3,9-bis(2-hydroxy-1,1-dimethylethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane, mixed ester of 1,2,3,4-butanetetracarboxylic acid and 2,2,6,6-tetramethyl-4-piperidinol and 3,9-bis(2-hydroxy-1,1-dimethylethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane.


[c] polycondensate of dimethyl succinate and 1-(2-hydroxyethyl)-4-hydroxy-2,2,6,6-tetramethylpiperidine, poly[(6-morpholino-1,3,5-triazine-2,4-diyl)((2,2,6,6-tetramethyl-4-piperidyl)imino)hexamethylene((2,2,6,6-tetramethyl-4-piperidyl)imino)], poly[(6-(1,1,3,3-tetramethylbutyl)imino-1,3,5-triazine-2,4-diyl)((2,2,6,6-tetramethyl-4-piperidyl)imino)hexamethylene((2,2,6,6-tetramethyl-4-piperidyl)imino)], polycondensate of N,N′-bis(2,2,6,6-tetramethyl-4-piperidyl)hexamethylenediamine and 1,2-dibromoethane, N,N′,4,7-tetrakis[4,6-bis(N-butyl-N-(2,2,6,6-tetramethyl-4-piperidyl)amino)-1,3,5-triazin-2-yl]-4,7-diazadecane-1,10-diamine, N,N′,4-tris[4,6-bis(N-butyl-N-(2,2,6,6-tetramethyl-4-piperidyl)amino)-1,3,5-triazin-2-yl]-4,7-diazadecane-1,10-diamine, N,N′,4,7-tetrakis[4,6-bis(N-butyl-N-(1,2,2,6,6-pentamethyl-4-piperidyl)amino)-1,3,5-triazin-2-yl]-4,7-diazadecane-1,10-diamine, N,N′,4-tris[4,6-bis(N-butyl-N-(1,2,2,6,6-pentamethyl-4-piperidyl)amino)-1,3,5-triazin-2-yl]-4,7-diazadecane-1,10-diamine.


[2] acrylate light stabilizer such as ethyl α-cyano-β,β-diphenylacrylate, isooctyl α-cyano-β,β-diphenylacrylate, methyl α-carbomethoxycinnamate, methyl α-cyano-β-methyl-p-methoxycinnamate, butyl α-cyano-β-methyl-p-methoxycinnamate, methyl α-carbomethoxy-p-methoxycinnamate, N-(⊕-carbomethoxy-β-cyanovinyl)-2-methylindoline and the like.


[3] nickel light stabilizer such as nickel complex of 2,2′-thiobis-[4-(1,1,3,3-tetramethylbutyl)phenol], nickel dibutyldithiocarbamate, nickel salt of monoalkylester, nickel complex of ketoxime and the like.


[4] oxamide light stabilizer such as 4,4′-dioctyloxyoxanilide, 2,2′-diethoxyoxanilide, 2,2′-dioctyloxy-5,5′-di-t-butylanilide, 2,2′-didodecyloxy-5,5′-di-t-butylanilide, 2-ethoxy-2′-ethyloxanilide, N,N′-bis(3-dimethylaminopropyl)oxamide, 2-ethoxy-5-t-butyl-2′-ethoxyanilide, 2-ethoxy-5,4′-di-t-butyl-2′-ethyloxanilide and the like.


[5] 2-(2-hydroxyphenyl)-1,3,5-triazine light stabilizer such as 2,4,6-tris(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2,4-bis(2-hydroxy-4-propyloxyphenyl)-6-(2,4-dimethylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(4-methylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-dodecyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-butyloxypropoxy)phenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-octyloxypropoxy)phenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and the like.


Examples of the stabilizer include hydroxyamines such as N,N-dibenzylhydroxyamine, N,N-diethylhydroxyamine, N,N-dioctylhydroxyamine, N,N-dilauryl hydroxyamine, N,N-ditetradecylhydroxyamine, N,N-dihexadecylhydroxyamine, N,N-dioctadecylhydroxyamine, N-hexadecyl-N-octadecylhydroxyamine, N-heptadecyl-N-octadecylhydroxyamine and the like, and the like.


Examples of the lubricant include aliphatic hydrocarbon such as paraffin, wax and the like, C8-22 higher fatty acid, metal (Al, Ca, Mg, Zn) salt of C8-22 higher fatty acid, C8-22 aliphatic alcohol, polyglycol, ester of C4-22 fatty acid and C4-18 aliphatic monovalent alcohol, C8-22 higher aliphatic amide, silicone oil, rosin derivative and the like.


Of the aforementioned other additives, phenol antioxidant, phosphorus antioxidant, sulfur antioxidant, UV absorber and hindered amine light stabilizer are preferable, and phenol antioxidant is more preferable.


Examples of particularly preferable phenol antioxidant include those described below: 2,6-di-t-butyl-4-methylphenol, 2,4,6-tri-t-butylphenol, 2,4-bis(octylthiomethyl)-6-t-butylphenol, 2,2′-thiobis(6-t-butylphenol), 2,2′-methylenebis(4-methyl-6-t-butylphenol), 2,2′-methylenebis(4-ethyl-6-t-butylphenol), 2,2′-methylenebis[4-methyl-6-(α-methylcyclohexyl)phenol], 2,2′-methylenebis(4-methyl-6-cyclohexylphenol), 2,2′-methylenebis(4,6-di-t-butylphenol), 2,2′-ethylidenebis(4,6-di-t-butylphenol), 4,4′-methylenebis(6-t-butyl-2-methylphenol), 4,4′-methylenebis(2,6-di-t-butylphenol), 4,4′-butylidenebis(3-methyl-6-t-butylphenol), 1,1-bis(4-hydroxyphenyl)cyclohexane, 1,1-bis(5-t-butyl-4-hydroxy-2-methylphenyl)butane, 1,1,3-tris(5-t-butyl-4-hydroxy-2-methylphenyl)butane, ethylene glycol bis[3,3-bis(3′-t-butyl-4′-hydroxyphenyl)butyrate], 2,4,6-tris(3,5-di-t-butyl-4-phenoxy)-1,3,5-triazine, tris(4-t-butyl-3-hydroxy-2,6-dimethylbenzyl)isocyanurate, bis(3,5-di-t-butyl-4-hydroxybenzyl)isocyanurate, tris[2-(3′,5′-di-t-butyl-4′-hydroxycinnamoyloxy)ethyl]isocyanurate, diethyl 3,5-di-t-butyl-4-hydroxybenzylphosphonate, di-n-octadecyl 3,5-di-t-butyl-4-hydroxybenzylphosphonate, calcium salt of 3,5-di-t-butyl-4-hydroxybenzylphosphonic acid monoester, neopentanetetrayl tetrakis(3,5-di-t-butyl-4-hydroxycinnamate), thiodiethylene bis(3,5-di-t-butyl-4-hydroxycinnamate), 1,3,5-trimethyl-2,4,6-tris(3,5-di-t-butyl-4-hydroxybenzyl)benzene, 3,6-dioxaoctamethylene bis(3,5-di-t-butyl-4-hydroxycinnamate), hexamethylene bis(3,5-di-t-butyl-4-hydroxycinnamate), triethylene glycol bis(5-t-butyl-4-hydroxy-3-methylcinnamate), 3,9-bis[2-(3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionyloxy)-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane, N,N′-bis[3-(3′,5′-di-t-butyl-4′-hydroxyphenyl)propionyl]hydrazine, N,N′-bis[3-(3′,5′-di-t-butyl-4′-hydroxyphenyl)propionyl]hexamethylenediamine.


Examples of particularly preferable phosphorus antioxidant include those described below: 2,2′-ethylidenebis(4,6-di-t-butylphenyl) fluorophosphite, bis(2,4-di-t-butyl-6-methylphenyl)ethyl phosphite, 2-(2,4,6-tri-t-butylphenyl)-5-ethyl-5-butyl-1,3,2-oxaphosphorinan.


Examples of particularly preferable UV absorber include those described below: phenyl salicylate, 4-t-butylphenyl salicylate, 2,4-di-t-butylphenyl 3′,5′-di-t-butyl-4′-hydroxybenzoate, 4-t-octylphenyl salicylate, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octoxybenzophenone, 2,2′-dihydroxy-4-methoxybenzophenone, bis(5-benzoyl-4-hydroxy-2-methoxyphenyl)methane, 2,2′,4,4′-tetrahydroxybenzophenone, 2-(2-hydroxy-5-methylphenyl)benzotriazole, 2-(3′,5′-di-t-butyl-2′-hydroxyphenyl)benzotriazole, 2-(5′-t-butyl-2′-hydroxyphenyl)benzotriazole, 2-(2′-hydroxy-5′-t-octylphenyl)benzotriazole, 2-(3-t-butyl-2-hydroxy-5-methylphenyl)-5-chlorobenzotriazole, 2-(3′-sec-butyl-2′-hydroxy-5′-t-butylphenyl)benzotriazole, 2-(2′-hydroxy-4′-octyloxyphenyl)benzotriazole, 2-(3′,5′-di-t-pentyl-2′-hydroxyphenyl)benzotriazole, 2-[2′-hydroxy-3′,5′-bis(α,α-dimethylbenzyl)phenyl]-2H-benzotriazole.


Examples of particularly preferable hindered amine light stabilizer include those described below: bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, bis(N-octoxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis(N-benzyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis(N-cyclohexyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis(1,2,2,6,6-pentamethyl-4-piperidyl) 2-(3,5-di-t-butyl-4-hydroxybenzyl)-2-butylmalonate, bis(1-acryloyl-2,2,6,6-tetramethyl-4-piperidyl) 2,2-bis(3,5-di-t-butyl-4-hydroxybenzyl)-2-butylmalonate, bis(2,2,6,6-tetramethyl-4-piperidyl) succinate, 2,2,6,6-tetramethyl-4-piperidyl methacrylate, 4-[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionyloxy]-1-[2-(3-(3,5-di-t-butyl-4-hydroxyphenyl)propionyloxy)ethyl]-2,2,6,6-tetramethylpiperidine, 2-methyl-2-(2,2,6,6-tetramethyl-4-piperidyl)amino-N-(2,2,6,6-tetramethyl-4-piperidyl)propionamide, tetrakis(2,2,6,6-tetramethyl-4-piperidyl) 1,2,3,4-butanetetracarboxylate, tetrakis(1,2,6,6-pentamethyl-4-piperidyl) 1,2,3,4-butanetetracarboxylate, mixed ester of 1,2,3,4-butanetetracarboxylic acid and 1,2,2,6,6-pentamethyl-4-piperidinol and 1-tridecanol, mixed ester of 1,2,3,4-butanetetracarboxylic acid and 2,2,6,6-tetramethyl-4-piperidinol and 1-tridecanol, mixed ester of 1,2,3,4-butanetetracarboxylic acid and 1,2,2,6,6-pentamethyl-4-piperidinol and 3,9-bis(2-hydroxy-1,1-dimethylethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane, mixed ester of 1,2,3,4-butanetetracarboxylic acid and 2,2,6,6-tetramethyl-4-piperidinol and 3,9-bis(2-hydroxy-1,1-dimethylethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane, polycondensate of dimethyl succinate and 1-(2-hydroxyethyl)-4-hydroxy-2,2,6,6-tetramethylpiperidine, poly[(6-morpholino-1,3,5-triazine-2,4-diyl)((2,2,6,6-tetramethyl-4-piperidyl)imino)hexamethylene((2,2,6,6-tetramethyl-4-piperidyl)imino)], poly[(6-(1,1,3,3-tetramethylbutyl)imino-1,3,5-triazine-2,4-diyl)((2,2,6,6-tetramethyl-4-piperidyl)imino)hexamethylene((2,2,6,6-tetramethyl-4-piperidyl)imino)].


Examples of the production method of the thermoplastic polymer composition of the present invention (i.e., the first-fourth thermoplastic polymer compositions) include


(a) a method including adding, when kneading a thermoplastic polymer, essential components compound (1)-compound (8) and trehalose, and, where necessary, optional components compound (1)-compound (8) and other additives separately to the thermoplastic polymer;


(b) a method including first mixing essential components compound (1)-compound (8) and trehalose, and, where necessary, optional components compound (1)-compound (8) and other additives to give a stabilizer composition, then mixing the obtained stabilizer composition with a thermoplastic polymer;


and the like. In view of the dispersibility of the essential components compound (1)-compound (8) and trehalose in a thermoplastic polymer, the method of the aforementioned (b) is preferable.


The production method of the stabilizer composition in the method of the aforementioned (b) is similar to the exemplified method described in the below-mentioned production method of a stabilizer composition.


Examples of the mixing method of a stabilizer composition and a thermoplastic polymer include


(c) a method including dry-blending a stabilizer composition and a thermoplastic polymer, melt-kneading them and extruding the mixture in a single screw or multiscrew extruder to give pellets of a thermoplastic polymer composition;


(d) a method including dissolving a stabilizer composition in a solvent such as cyclohexane and the like to give a solution of the stabilizer composition, adding the solution to a polymer solution after completion of thermoplastic polymer polymerization, and desolvating the mixture;


and the like.


The obtained thermoplastic polymer composition may be supplied in a molten state without cooling to a molding machine for molding. The molding method is not particularly limited and, for example, molding method such as injection molding method, extrusion molding method, extrusion blow molding method, injection blow molding method, biaxial orientation blow molding method and the like can be used.


By cooling after molding, a thermoplastic polymer molded product comprised of the thermoplastic polymer composition of the present invention is obtained. Examples of the use of the obtained thermoplastic polymer molding product include electronic component (for example, coil bobbin, connector, switch, resistor component, socket, relay, condenser case, fuse, motor, oven, printed circuit board, IC manufacturing equipment, lamp and the like), automobile part (for example, air outlet garnish, hood vent, distributor cap, exhaust gas control valve and the like), clock component (for example, machine component such as gear, cam and the like, ground plane and the like), camera component (for example, bottom cover, barrel, lever and the like), component of leisure goods (for example, reel and the like), household electrical appliance housing, illumination wiring equipment, film, bottle, fiber, septic tank, toilet tank, bath tub, unit bath, water tank, boats and ships, chemicals tank, pipe, corrugated plate, flat plate, paint, decorative laminate, mounting agent for electronic component, resin concrete and the like.


Next, the stabilizer composition of the present invention (i.e., the first-fourth stabilizer compositions) is explained. The stabilizer composition of the present invention is used to improve processing stability of thermoplastic polymer compositions. The processing stability of a thermoplastic polymer composition can be evaluated by the method described in the below-mentioned Examples.


First, the first stabilizer composition is explained. The first stabilizer composition contains compound (1) and trehalose. Only one kind of compound (1) may be used or two or more kinds thereof may be used in combination. Explanations of compound (1) and trehalose are the same as those mentioned above.


The weight ratio of compound (1) and trehalose in the first stabilizer composition (i.e., compound (1):trehalose) is preferably 1000:1-0.05:1. Compound (1):trehalose is more preferably 1000:1-0.1:1 from the aspect of processing stability of the thermoplastic polymer composition, and still more preferably 1000:1-0.5:1, particularly preferably 1000:1-1:1, from the aspect of suppression of color change of the thermoplastic polymer composition.


The first stabilizer composition may contain components other than compound (1) and trehalose as long as the effect of the present invention is not inhibited. For example, the first stabilizer composition may further contain compound (2). In addition, the first stabilizer composition may further contain at least one selected from the group consisting of compounds (3)-(7). Only one kind of compounds (2)-(7) may be used or two or more kinds thereof may be used in combination. Explanations of compound (2)-compound (7) are the same as those mentioned above.


The content of compound (2) in the first stabilizer composition is preferably 0-90 parts by weight, more preferably 0.1-80 parts by weight, relative to 100 parts by weight of the first stabilizer composition. The total amount of the compounds selected from the group consisting of compounds (3)-(7) in the first stabilizer composition is preferably 0-10 parts by weight, more preferably 0.001-5 parts by weight, relative to 100 parts by weight of the first stabilizer composition.


The first stabilizer composition may further contain other additives. Explanations of other additives are the same as those mentioned above.


The second stabilizer composition is now explained. The second stabilizer composition contains compound (8) and trehalose. Only one kind of compound (8) may be used or two or more kinds thereof may be used in combination. Explanations of compound (8) and trehalose are the same as those mentioned above.


The weight ratio of compound (8) and trehalose in the second thermoplastic polymer composition (i.e., compound (8):trehalose) is preferably 1000:1-0.05:1. Compound (8):trehalose is more preferably 1000:1-0.1:1 from the aspect of processing stability of the thermoplastic polymer composition, and still more preferably 1000:1-0.5:1, particularly preferably 1000:1-1:1, from the aspect of suppression of color change of the thermoplastic polymer composition.


The second stabilizer composition may contain components other than compound (8) and trehalose as long as the effect of the present invention is not inhibited. For example, the second stabilizer composition may further contain compound (2). In addition, the second stabilizer composition may further contain at least one selected from the group consisting of compounds (3)-(7). Only one kind of compounds (2)-(7) may be used or two or more kinds thereof may be used in combination. Explanations of compound (2)-compound (7) are the same as those mentioned above.


The content of compound (2) in the second stabilizer composition is preferably O-90 parts by weight, more preferably 0.1-80 parts by weight, relative to 100 parts by weight of the second stabilizer composition. The total amount of the compounds selected from the group consisting of compounds (3)-(7) in the second stabilizer composition is preferably 0-10 parts by weight, more preferably 0.001-5 parts by weight, relative to 100 parts by weight of the second stabilizer composition.


The second stabilizer composition may further contain other additives. Explanations of other additives are the same as those mentioned above.


The third stabilizer composition is now explained. The third stabilizer composition contains compound (2) and trehalose. Only one kind of compound (2) may be used or two or more kinds thereof may be used in combination. Explanations of compound (2) and trehalose are the same as those mentioned above.


The third stabilizer composition preferably consists of compound (2) and trehalose. Here, “consists of compound (2) and trehalose” means the total amount of compound (2) and trehalose is not less than 99 wt % of the third stabilizer composition.


The weight ratio of compound (2) and trehalose in the third thermoplastic polymer composition (i.e., compound (2):trehalose) is preferably 1000:1-0.05:1. Compound (2):trehalose is more preferably 1000:1-0.1:1 from the aspect of processing stability of the thermoplastic polymer composition, and still more preferably 1000:1-0.5:1, further more preferably 1000:1-1:1, from the aspect of suppression of color change of the thermoplastic polymer composition.


The third stabilizer composition may contain components other than compound (2) and trehalose as long as the effect of the present invention is not inhibited. For example, the third stabilizer composition may further contain compound (1). In addition, the third stabilizer composition may further contain at least one selected from the group consisting of compounds (3)-(7). Moreover, the third thermoplastic polymer composition may further contain compound (8). Only one kind of compound (1) and compounds (3)-(8) may be used or two or more kinds thereof may be used in combination. Explanations of compound (1) and compounds (3)-(8) are the same as those mentioned above.


The content of each of compound (1) and compounds (3)-(8) in the third stabilizer composition is preferably 0-90 parts by weight, more preferably 0.1-80 parts by weight, relative to 100 parts by weight of the third stabilizer composition.


The third stabilizer composition may further contain other additives. Explanations of other additives are the same as those mentioned above.


The fourth stabilizer composition is now explained. The fourth stabilizer composition contains trehalose and at least one selected from the group consisting of compounds (3)-(7). Only one kind of compounds (3)-(7) may be used or two or more kinds thereof may be used in combination. Explanations of compounds (3)-(7) and trehalose are the same as those mentioned above.


The fourth stabilizer composition preferably consists of is trehalose and at least one selected from the group consisting of compounds (3)-(7). Here, “consists of trehalose and at least one selected from the group consisting of compounds (3)-(7)” means the total amount of trehalose and the compound selected from the group consisting of compounds (3)-(7) is not less than 99 wt % of the fourth stabilizer composition.


The weight ratio of the compound selected from the group consisting of compounds (3)-(7) and trehalose in the fourth thermoplastic polymer composition (i.e., compound selected from the group consisting of compounds (3)-(7):trehalose) is preferably 1000:1-0.05:1. The compound selected from the group consisting of compounds (3)-(7):trehalose is more preferably 1000:1-0.1:1 from the aspect of processing stability of the thermoplastic polymer composition, and still more preferably 1000:1-0.5:1, further more preferably 1000:1-1:1, from the aspect of suppression of color change of the thermoplastic polymer composition.


The fourth stabilizer composition may contain components other than compounds (3)-(7) and trehalose as long as the effect of the present invention is not inhibited. For example, the fourth stabilizer composition may further contain at least one selected from the group consisting of compound (1), compound (2) and compound (8). Only one kind of compound (1), compound (2) and compound (8) may be used or two or more kinds thereof may be used in combination. Explanations of compound (1), compound (2) and compound (8) are the same as those mentioned above.


The content of each of compound (1), compound (2) and compound (8) in the fourth stabilizer composition is preferably 0-90 parts by weight, more preferably 0.1-80 parts by weight, relative to 100 parts by weight of the fourth stabilizer composition.


The fourth stabilizer composition may further contain other additives. Explanations of other additives in the fourth thermoplastic polymer composition are the same as those mentioned above.


Examples of the production method of the stabilizer composition of the present invention include a method including mixing the essential components and optional components used as necessary (i.e., compounds (1)-(8), trehalose and other additives) of the first-fourth stabilizer compositions in a blending machine such as Henschel mixer, super mixer, high speed mixer and the like and the like. The thus-obtained mixture (stabilizer composition) may be further subjected to extrusion molding or agitation granulation.


EXAMPLES

The present invention is explained in more detail in the following by referring to Examples and the like. In the following, “part” and “%” is, unless particularly explained, on the weight basis. In addition, the “melt flow rate” is described as “MFR”.


The components used in the following Examples and the like are as follows.


Compound (1-1): 2,4-di-t-pentyl-6-[1-(3,5-di-t-pentyl-2-hydroxyphenyl)ethyl]phenyl acrylate (“Sumilizer (registered trade mark) GS(F)” manufactured by Sumitomo Chemical Company, Limited)


Compound (1-2): 2-t-butyl-6-(3-t-butyl-2-hydroxy-5-methylbenzyl)-4-methylphenyl acrylate (“Sumilizer (registered trade mark) GM” manufactured by Sumitomo Chemical Company, Limited)


Compound (2-1): octadecyl 3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate (“Irganox (registered trade mark) 1076” manufactured by BASF)


Compound (2-2): 3,9-bis[2-{3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionyloxy}-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane (“Sumilizer (registered trade mark) GA-80” manufactured by Sumitomo Chemical Company, Limited)


Compound (2-3): pentaerythritol tetrakis[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate] (“Irganox (registered trade mark) 1010” manufactured by BASF)


Compound (3-1): tris(2,4-di-t-butylphenyl) phosphite (“Irgafos (registered trade mark) 168” manufactured by BASF)


Compound (4-1): tetrakis(2,4-di-t-butylphenyl)-4,4-biphenylene diphoshonite (“Sandostab (registered trade mark) P-EPQ” manufactured by Clariant)


Compound (5-1): bis(2,6-di-t-butyl-4-methylphenyl) pentaerythritol diphosphite (“Adekastab (registered trade mark) PEP-36” manufactured by ADEKA)


Compound (5-2): bis(2,4-di-t-butylphenyl)pentaerythritol diphosphite (“Ultranox (registered trade mark) 626” manufactured by GE Plastics)


Compound (5-3): bis(2,4-dicumylphenyl)pentaerythritol diphosphite (“Doverphos S9228T” manufactured by Dover Chemical Corporation)


Compound (6-1): 6,6′,6″-[nitrilotris(ethyleneoxy)]tris(2,4,8,10-tetra-t-butyldibenzo[d,f][1,3,2]dioxaphosphepine) (“Irgafos(registered trade mark) 12” manufactured by BASF)


Compound (7-1): 2,2-methylenebis(4,6-di-t-butylphenyl) octyl phosphite (“Adekastab (registered trade mark) HP-10” manufactured by ADEKA)


Compound (8-1): 6-[3-(3-t-butyl-4-hydroxy-5-methylphenyl)propoxy]-2,4,8,10-tetra-t-butyldibenzo[d,f][1,3,2]dioxaphosphepine (“Sumilizer (registered trade mark) GP” manufactured by Sumitomo Chemical Company, Limited)


trehalose (manufactured by HAYASHIBARA CO., LTD.)


In the following Example 1-1-Example 1-253, the first stabilizer composition containing compound (1) and trehalose as essential components is used, in Example 2-1-Example 2-208, the second stabilizer composition containing compound (8) and trehalose as essential components is used, in Example 3-1-Example 3-134, the third stabilizer composition containing compound (2) and trehalose as essential components is used, and in Example 4-1-Example 4-199, the fourth stabilizer composition containing trehalose and at least one selected from the group consisting of compounds (3)-(7) as essential components is used.


Example 1-1
Production of Stabilizer Composition

Compound (1-1) (0.4 part) and trehalose (0.01 part) were mixed to produce a stabilizer composition.


Example 1-2-Example 1-4
Production of Stabilizer Composition

In the same manner as in Example 1-1 except that the amounts of the trehalose to be used were respectively set to 0.05 part, 0.1 part and 0.2 part, stabilizer compositions were produced.


Example 1-5-Example 1-8
Production of Stabilizer Composition

In the same manner as in Example 1-1-Example 1-4 except that compound (1-2) was used instead of compound (1-1), stabilizer compositions were respectively produced.


Example 1-9
Production of Thermoplastic Polymer Composition

A styrene-butadiene block copolymer (manufactured by Asahi Kasei Corp., 100 parts) and the total amount of the stabilizer composition obtained in Example 1-1 were mixed, and the mixture was kneaded using a laboplast mill (“4C-150” manufactured by Toyo Seiki Seisaku-sho, Ltd.) under a nitrogen atmosphere under the conditions of temperature 250° C. and screw rotation 100 rpm to give a thermoplastic polymer composition as pellets.


Example 1-10-Example 1-12
Production of Thermoplastic Polymer Composition

In the same manner as in Example 1-9 except that each stabilizer composition obtained in Example 1-2-Example 1-4 was used instead of the stabilizer composition obtained in Example 1-1, thermoplastic polymer compositions were obtained as pellets.


Comparative Example 1-1

In the same manner as in Example 1-9 except that compound (1-1) (0.4 part) was used instead of the stabilizer composition obtained in Example 1-1, a thermoplastic polymer composition was obtained as pellets.


Example 1-13-Example 1-16
Production of Thermoplastic Polymer Composition

In the same manner as in Example 1-9 except that each stabilizer composition obtained in Example 1-5-Example 1-8 was used instead of the stabilizer composition obtained in Example 1-1, thermoplastic polymer compositions were obtained as pellets.


Comparative Example 1-2

In the same manner as in Example 1-13 except that compound (1-2) (0.4 part) was used instead of the stabilizer composition obtained in Example 1-5, a thermoplastic polymer composition was obtained as pellets.


Experimental Example 1-1
Evaluation of Processing Stability Under Dynamic Condition

In Example 1-9-Example 1-13, Comparative Example 1-1 and Comparative Example 1-2, the time necessary for the torque of the laboplast mill to reach the maximum value was measured as a build-up time. A longer build-up time means more superior processing stability of the thermoplastic polymer composition under dynamic condition.


In addition, the progress rate of processing stability was calculated from the values of the build-up time of Examples and Comparative Examples, and based on the following formula:





progress rate of processing stability (%)=build-up time (minute) of Example×100/build-up time (minute) of Comparative Example.


For calculation of the progress rate of processing stability, the value of the build-up time of Comparative Example 1-1 was used for Example 1-9-Example 1-12 and the value of the build-up time of Comparative Example 1-2 was used for Example 1-13-Example 1-16.


The compositions of the stabilizer compositions of Example 1-1-Example 1-8 are shown in Table 1, and the compositions, build-up time and processing stability of the thermoplastic polymer compositions of Example 1-9-Example 1-16, Comparative Example 1-1 and Comparative Example 1-2 are shown in Table 2.









TABLE 1







stabilizer composition












compound
compound





(1-1)
(1-2)
trehalose
mass ratio of



(part)
(part)
(part)
compound (1):trehalose















Ex. 1-1
0.4

0.01
40:1 


Ex. 1-2
0.4

0.05
8:1


Ex. 1-3
0.4

0.1
4:1


Ex. 1-4
0.4

0.2
2:1


Ex. 1-5

0.4
0.01
40:1 


Ex. 1-6

0.4
0.05
8:1


Ex. 1-7

0.4
0.1
4:1


Ex. 1-8

0.4
0.2
2:1
















TABLE 2







thermoplastic polymer composition











stabilizer

progress



composition
build-up
rate (%) of













SBS

amount
time
processing



(part)
kind
(part)
(minute)
stability
















Ex. 1-9
100
Ex. 1-1
0.41
26.8
103


Ex. 1-10
100
Ex. 1-2
0.45
26.9
103


Ex. 1-11
100
Ex. 1-3
0.5
36.0
138


Ex. 1-12
100
Ex. 1-4
0.6
40.7
157


Comp.
100
compound
0.4
26.0



Ex. 1-1

(1-1)


Ex. 1-13
100
Ex. 1-5
0.41
28.0
106


Ex. 1-14
100
Ex. 1-6
0.45
33.2
126


Ex. 1-15
100
Ex. 1-7
0.5
36.0
137


Ex. 1-16
100
Ex. 1-8
0.6
48.8
186


Comp.
100
compound
0.4
26.3



Ex. 1-2

(1-2)





SBS: styrene-butadiene block copolymer






Example 1-17
Production of Thermoplastic Polymer Composition

An ethylene-vinyl alcohol copolymer (manufactured by KURARAY CO., LTD., 100 parts), compound (1-1) (0.3 part) and trehalose (0.2 part) were dry-blended, the obtained mixture was knead-extruded by a single screw extruder having a screw diameter of 30 mm (“VS30-28 type extruder” manufactured by TANABE PLASTICS MACHINERY CO., LTD.) under the conditions of temperature 230° C. and screw rotation 50 rpm to give strands, and the strands were cut by a pelletizer to give a thermoplastic polymer composition as pellets.


Example 1-18
Production of Thermoplastic Polymer Composition

In the same manner as in Example 1-17 except that compound (1-1) (0.1 part) and trehalose (0.4 part) were used as a stabilizer composition, a thermoplastic polymer composition was obtained as pellets.


Comparative Example 1-3

In the same manner as in Example 1-17 except that only compound (1-1) (0.5 part) was used as a stabilizer, a thermoplastic polymer composition was obtained as pellets.


Experimental Example 1-2
Evaluation of Processing Stability Under Static Condition

For evaluation of the processing stability during operation of extrusion processing (i.e., under static conditions), Dwell MFR tests were performed using the pellets of each thermoplastic polymer composition obtained in Example 1-17, Example 1-18 and Comparative Example 1-3. The test was based on JIS K 7210, and 0 min Dwell MFR (g/10 min) and 30 min Dwell MFR (g/10 min) were measured by a melt indexer (L217-E14011 manufactured by Technol Seven Co., Ltd.) under the conditions of temperature in a cylinder 270° C. and load 2.16 kg. The 0 min Dwell MFR was measured after 5-min preheating time after filling pellets of the thermoplastic polymer composition in the cylinder. The 30 min Dwell MFR was measured after 30-min dwell time, including the preheating time, of the pellets of the thermoplastic polymer composition in the cylinder. The MFR variation rate was calculated by the following formula and using the thus-measured 0 min Dwell MFR and 30 min Dwell MFR:





MFR variation rate (%)=absolute value of (30 min Dwell MFR−0 min Dwell MFR)×100/(0 min Dwell MFR)


A smaller MFR variation rate means better processing stability of the thermoplastic polymer composition. The results are shown in Table 3.









TABLE 3







thermoplastic polymer composition










stabilizer composition



















mass
0 min
30 min
MFR




compound

ratio of
Dwell
Dwell
variation



SBS
(1-1)
trehalose
compound
MFR
MFR
rate



(part)
(part)
(part)
(1-1):trehalose
(g/10 min)
(g/10 min)
(%)


















Ex.
100
0.3
0.2
3:2
10.1
10.9
7.9


1-17


Ex.
100
0.1
0.4
1:4
11.9
13.6
14.3


1-18


Com.
100
0.5


13.1
24.9
90.1


Ex.


1-3





SBS: styrene-butadiene block copolymer






Example 1-19-Example 1-22
Production of Stabilizer Composition

Compound (1-1), trehalose, compound (2-1) and compound (3-1) were mixed in the amounts described in Table 4 to give stabilizer compositions.


Example 1-23
Production of Thermoplastic Polymer Composition

A styrene-butadiene block copolymer (manufactured by DENKI KAGAKU KOGYO KABUSHIKI KAISHA, 100 parts) and the stabilizer composition (0.31 part) obtained in Example 1-19 were dry-blended, the obtained mixture was knead-extruded by a single screw extruder having a screw diameter of 30 mm (“VS30-28 type extruder” manufactured by TANABE PLASTICS MACHINERY CO., LTD.) under the conditions of temperature 230° C. and screw rotation 50 rpm to give strands, and the strands were cut by a pelletizer to give a thermoplastic polymer composition as pellets.


Example 1-24
Production of Thermoplastic Polymer Composition

In the same manner as in Example 1-23 except that the stabilizer composition (0.51 part) obtained in Example 1-20 was used instead of the stabilizer composition obtained in Example 1-19, a thermoplastic polymer composition was obtained as pellets.


Example 1-25
Production of Thermoplastic Polymer Composition

In the same manner as in Example 1-23 except that the stabilizer composition (0.51 part) obtained in Example 1-21 was used instead of the stabilizer composition obtained in Example 1-19, a thermoplastic polymer composition was obtained as pellets.


Example 1-26
Production of Thermoplastic Polymer Composition

In the same manner as in Example 1-23 except that the stabilizer composition (0.71 part) obtained in Example 1-22 was used instead of the stabilizer composition obtained in Example 1-19, a thermoplastic polymer composition was obtained as pellets.


Comparative Example 1-4

In the same manner as in Example 1-23 except that compound (1-1) (0.3 part) was used instead of the stabilizer composition obtained in Example 1-19, a thermoplastic polymer composition was obtained as pellets.


Experimental Example 1-3
Evaluation of Processing Stability Under Static Condition

Dwell MFR tests were performed in the same manner as in Experimental Example 1-2 and using the pellets of each thermoplastic polymer composition obtained in Example 1-23-Example 1-26 and Comparative Example 1-4. The results are shown in Table 5.









TABLE 4







stabilizer composition












compound

compound
compound



(1-1)
trehalose
(2-1)
(3-1)



(part)
(part)
(part)
(part)















Ex. 1-19
0.3
0.01




Ex. 1-20
0.3
0.01
0.2



Ex. 1-21
0.3
0.01

0.2


Ex. 1-22
0.3
0.01
0.2
0.2
















TABLE 5







thermoplastic polymer composition












stabilizer
0 min
30 min
MFR



composition
Dwell
Dwell
variation














SBS

amount
MFR
MFR
rate



(part)
kind
(part)
(g/10 min)
(g/10 min)
(%)

















Ex.
100
Ex.
0.31
20.4
11.6
43.1


1-23

1-19


Ex.
100
Ex.
0.51
22.0
14.5
34.1


1-24

1-20


Ex.
100
Ex.
0.51
21.3
13.6
36.2


1-25

1-21


Ex.
100
Ex.
0.71
23.1
15.4
33.3


1-26

1-22


Comp.
100
compound
0.3
18.6
6.2
66.7


Ex.

(1-1)


1-4





SBS: styrene-butadiene block copolymer






Example 1-27-Example 1-31
Production of Stabilizer Composition

Compound (1-1) and trehalose in the amounts described in Table 6 were mixed to give stabilizer compositions.


Example 1-32-Example 1-36
Production of Thermoplastic Polymer Composition

In the same manner as in Example 1-23 except that each to stabilizer composition (0.2 part) obtained in Examples 1-27-31 was used instead of the stabilizer composition (0.31 part) obtained in Example 1-19, thermoplastic polymer compositions were obtained as pellets.


Experimental Example 1-4
Evaluation of Processing Stability Under Static Condition

Dwell MFR tests were performed in the same manner as in Experimental Example 1-2 and using the pellets of each thermoplastic polymer composition obtained in Example 1-32-Example 1-36. The results are shown in Table 7.









TABLE 6







stabilizer composition










compound (1-1) (part)
trehalose (part)













Ex. 1-27
0.1998
0.0002


Ex. 1-28
0.1996
0.0004


Ex. 1-29
0.198
0.002


Ex. 1-30
0.1818
0.0182


Ex. 1-31
0.0667
0.1333
















TABLE 7







thermoplastic polymer composition












stabilizer


MFR



composition
0 min
30 min
variation














SBS

amount
Dwell MFR
Dwell MFR
rate



(part)
kind
(part)
(g/10 min)
(g/10 min)
(%)

















Ex.
100
Ex.
0.2
16.9
11.7
30.8


1-32

1-27


Ex.
100
Ex.
0.2
15.9
9.4
40.9


1-33

1-28


Ex.
100
Ex.
0.2
16.4
11.5
29.9


1-34

1-29


Ex.
100
Ex.
0.2
17.6
13.6
22.7


1-35

1-30


Ex.
100
Ex.
0.2
16.5
8.2
50.3


1-36

1-31





SBS: styrene-butadiene block copolymer






Example 1-37-Example 1-123
Production of Stabilizer Composition

Stabilizer compositions are obtained by mixing the components described in Table 8-1-Table 8-3. Thermoplastic polymer compositions containing these stabilizer compositions are predicted to be superior in processing stability.









TABLE 8-1







stabilizer composition












compound

compound
compounds



(1)
trehalose
(2)
(3)-(7)
















amount
amount

amount

amount


Example
kind
(part)
(part)
kind
(part)
kind
(part)

















1-37
(1-1)
0.01
0.2






1-38
(1-1)
0.05
0.15






1-39
(1-1)
0.1
0.1






1-40
(1-1)
0.15
0.05






1-41
(1-1)
0.2
0.01






1-42
(1-1)
0.2
0.005






1-43
(1-1)
0.2
0.001






1-44
(1-1)
0.2
0.0005






1-45
(1-1)
0.2
0.0002






1-46
(1-1)
0.01
0.2
(2-2)
0.2


1-47
(1-1)
0.1
0.1
(2-2)
0.2




1-48
(1-1)
0.2
0.01
(2-2)
0.2




1-49
(1-1)
0.2
0.005
(2-2)
0.2




1-50
(1-1)
0.2
0.001
(2-2)
0.2




1-51
(1-1)
0.2
0.0005
(2-2)
0.2




1-52
(1-1)
0.01
0.2
(2-3)
0.2




1-53
(1-1)
0.1
0.1
(2-3)
0.2




1-54
(1-1)
0.2
0.01
(2-3)
0.2




1-55
(1-1)
0.2
0.005
(2-3)
0.2




1-56
(1-1)
0.2
0.001
(2-3)
0.2




1-57
(1-1)
0.2
0.0005
(2-3)
0.2




1-58
(1-1)
0.01
0.2


(4-1)
0.2


1-59
(1-1)
0.1
0.1


(4-1)
0.2


1-60
(1-1)
0.2
0.01


(4-1)
0.2


1-61
(1-1)
0.2
0.005


(4-1)
0.2


1-62
(1-1)
0.2
0.001


(4-1)
0.2


1-63
(1-1)
0.2
0.0005


(4-1)
0.2


1-64
(1-1)
0.01
0.2


(5-1)
0.2


1-65
(1-1)
0.1
0.1


(5-1)
0.2


1-66
(1-1)
0.2
0.01


(5-1)
0.2


1-67
(1-1)
0.2
0.005


(5-1)
0.2


1-68
(1-1)
0.2
0.001


(5-1)
0.2


1-69
(1-1)
0.2
0.0005


(5-1)
0.2
















TABLE 8-2







stabilizer composition












compound

compound
compounds



(1)
trehalose
(2)
(3)-(7)
















amount
amount

amount

amount


Example
kind
(part)
(part)
kind
(part)
kind
(part)

















1-70
(1-1)
0.01
0.2


(5-2)
0.2


1-71
(1-1)
0.1
0.1


(5-2)
0.2


1-72
(1-1)
0.2
0.01


(5-2)
0.2


1-73
(1-1)
0.2
0.005


(5-2)
0.2


1-74
(1-1)
0.2
0.001


(5-2)
0.2


1-75
(1-1)
0.2
0.0005


(5-2)
0.2


1-76
(1-1)
0.01
0.2


(5-3)
0.2


1-77
(1-1)
0.1
0.1


(5-3)
0.2


1-78
(1-1)
0.2
0.01


(5-3)
0.2


1-79
(1-1)
0.2
0.005


(5-3)
0.2


1-80
(1-1)
0.2
0.001


(5-3)
0.2


1-81
(1-1)
0.2
0.0005


(5-3)
0.2


1-82
(1-1)
0.01
0.2


(6-1)
0.2


1-83
(1-1)
0.1
0.1


(6-1)
0.2


1-84
(1-1)
0.2
0.01


(6-1)
0.2


1-85
(1-1)
0.2
0.005


(6-1)
0.2


1-86
(1-1)
0.2
0.001


(6-1)
0.2


1-87
(1-1)
0.2
0.0005


(6-1)
0.2


1-88
(1-1)
0.01
0.2


(7-1)
0.2


1-89
(1-1)
0.1
0.1


(7-1)
0.2


1-90
(1-1)
0.2
0.01


(7-1)
0.2


1-91
(1-1)
0.2
0.005


(7-1)
0.2


1-92
(1-1)
0.2
0.001


(7-1)
0.2


1-93
(1-1)
0.2
0.0005


(7-1)
0.2


1-94
(1-1)
0.01
0.2
(2-1)
0.2
(3-1)
0.2


1-95
(1-1)
0.1
0.1
(2-1)
0.2
(3-1)
0.2


1-96
(1-1)
0.2
0.01
(2-1)
0.2
(3-1)
0.2


1-97
(1-1)
0.2
0.005
(2-1)
0.2
(3-1)
0.2


1-98
(1-1)
0.2
0.001
(2-1)
0.2
(3-1)
0.2


1-99
(1-1)
0.2
0.0005
(2-1)
0.2
(3-1)
0.2


 1-100
(1-1)
0.01
0.2
(2-2)
0.2
(3-1)
0.2


 1-101
(1-1)
0.1
0.1
(2-2)
0.2
(3-1)
0.2


 1-102
(1-1)
0.2
0.01
(2-2)
0.2
(3-1)
0.2


 1-103
(1-1)
0.2
0.005
(2-2)
0.2
(3-1)
0.2


 1-104
(1-1)
0.2
0.001
(2-2)
0.2
(3-1)
0.2


 1-105
(1-1)
0.2
0.0005
(2-2)
0.2
(3-1)
0.2
















TABLE 8-3







stabilizer composition












compound

compound
compounds



(1)
trehalose
(2)
(3)-(7)
















amount
amount

amount

amount


Example
kind
(part)
(part)
kind
(part)
kind
(part)

















1-106
(1-1)
0.01
0.2
(2-3)
0.2
(3-1)
0.2


1-107
(1-1)
0.1
0.1
(2-3)
0.2
(3-1)
0.2


1-108
(1-1)
0.2
0.01
(2-3)
0.2
(3-1)
0.2


1-109
(1-1)
0.2
0.005
(2-3)
0.2
(3-1)
0.2


1-110
(1-1)
0.2
0.001
(2-3)
0.2
(3-1)
0.2


1-111
(1-1)
0.2
0.0005
(2-3)
0.2
(3-1)
0.2


1-112
(1-2)
0.01
0.2






1-113
(1-2)
0.05
0.15






1-114
(1-2)
0.1
0.1






1-115
(1-2)
0.15
0.05






1-116
(1-2)
0.2
0.01






1-117
(1-2)
0.2
0.005






1-118
(1-2)
0.2
0.001






1-119
(1-2)
0.2
0.0005






1-120
(1-2)
0.2
0.0002






1-121
(1-2)
0.1
0.1
(2-1)
0.2




1-122
(1-2)
0.1
0.1


(3-1)
0.2


1-123
(1-2)
0.1
0.1
(2-1)
0.2
(3-1)
0.2









Example 1-124-Example 1-253
Production of Thermoplastic Polymer Composition

In the same manner as in Example 1-4 except that the thermoplastic polymers (100 parts) described in Table 9-1-Table 9-4, and the stabilizer composition in the kinds and amounts described in Table 9-1-Table 9-4 are used, thermoplastic polymer compositions are obtained as pellets. The obtained thetmoplastic polymer compositions are predicted to be superior in processing stability.


The meanings of the abbreviations of the thermoplastic polymers described in Table 9-1-Table 9-4 are as follows. The MFR described below is the 0 min Dwell MFR of the thermoplastic polymer as measured under the conditions of Experimental Example 1-2.


P1-1: high density polyethylene (HDPE) (excluding P1-45-P1-50)


P1-2: low density polyethylene (LDPE) (excluding P1-51-P1-57)


P1-3: linear low density polyethylene (LLDPE) (excluding P1-58-P1-64)


P1-4: ethylene-ethyl acrylate copolymer (EEA)


P1-5: ethylene-vinyl acetate copolymer (EVA)


P1-6: polypropylene (PP) (excluding P1-65-P1-71)


P1-7: propylene-ethylene random copolymer


P1-8: propylene-α-olefin random copolymer


P1-9: propylene-ethylene-α-olefin copolymer


P1-10: polystyrene (PS)


P1-11: acrylonitrile-styrene copolymer (SAN)


P1-12: acrylonitrile-butadiene-styrene copolymer (ABS)


P1-13: special acrylic rubber-acrylonitrile-styrene copolymer


P1-14: acrylonitrile-chlorinated polyethylene-styrene copolymer (ACS)


P1-15: polybutadiene rubber (BR)


P1-16: styrene-butadiene copolymer (SB)


P1-17: styrene-butadiene block copolymer (SBS)


P1-18: chlorinated polyethylene (CPE)


P1-19: polychloroprene


P1-20: chlorinated rubber


P1-21: poly(vinyl chloride) (PVC)


P1-22: poly(vinylidene chloride) (PVDC)


P1-23: methacrylate resin


P1-24: fluororesin


P1-25: polyacetal (POM)


P1-26: grafted poly(phenylene ether) resin


P1-27: poly(phenylene sulfide) resin (PPS)


P1-28: polyurethane (PU) (excluding P1-75-P1-77)


P1-29: polyamide (PA) (excluding P1-78-P1-86)


P1-30: poly(ethylene terephthalate) (PET)


P1-31: poly(butylene terephthalate) (PBT)


P1-32: poly(lactic acid) (PLA)


P1-33: polycarbonate (PC)


P1-34: polyacrylate


P1-35: polysulfone (PPSU)


P1-36: poly(ether ether ketone) (PEEK)


P1-37: poly(ether sulfone) (PES)


P1-38: aromatic polyester


P1-39: diallyl phthalate prepolymer


P1-40: silicone resin (SI)


P1-41: 1,2-polybutadiene


P1-42: polyisoprene


P1-43: butadiene-acrylonitrile copolymer (NBR)


P1-44: ethylene-methyl methacrylate copolymer (EMMA)


P1-45: high density polyethylene (HDPE) with MFR of 40 g/10 min


P1-46: high density polyethylene (HDPE) with MFR of 20 g/10 min


P1-47: high density polyethylene (HDPE) with MFR of 10 g/10 min


P1-48: high density polyethylene (HDPE) with MFR of 5 g/10 min


P1-49: high density polyethylene (HDPE) with MFR of 1 g/10 min


P1-50: high density polyethylene (HDPE) with MFR of 0.1 g/10 min


P1-51: low density polyethylene (LDPE) with MFR of 75 g/10 min


P1-52: low density polyethylene (LDPE) with MFR of 50 g/10 min


P1-53: low density polyethylene (LDPE) with MFR of 25 g/10 min


P1-54: low density polyethylene (LDPE) with MFR of 10 g/10 min


P1-55: low density polyethylene (LDPE) with MFR of 5 g/10 min


P1-56: low density polyethylene (LDPE) with MFR of 2 g/10 min


P1-57: low density polyethylene (LDPE) with MFR of 1 g/10 min


P1-58: low density polyethylene (LDPE) with MFR of 0.1 g/10 min


P1-59: linear low density polyethylene (LLDPE) with MFR of 100 g/10 min


P1-60: linear low density polyethylene (LLDPE) with MFR of 50 g/10 min


P1-61: linear low density polyethylene (LLDPE) with MFR of 25 g/10 min


P1-62: linear low density polyethylene (LLDPE) with MFR of 10 g/10 min


P1-63: linear low density polyethylene (LLDPE) with MFR of 5 g/10 min


P1-64: linear low density polyethylene (LLDPE) with MFR of 1 g/10 min


P1-65: linear low density polyethylene (LLDPE) with MFR of 0.1 g/10 min


P1-66: polypropylene (PP) with MFR of 100 g/10 min


P1-67: polypropylene (PP) with MFR of 50 g/10 min


P1-68: polypropylene (PP) with MFR of 25 g/10 min


P1-69: polypropylene (PP) with MFR of 10 g/10 min


P1-70: polypropylene (PP) with MFR of 5 g/10 min


P1-71: polypropylene (PP) with MFR of 1 g/10 min


P1-72: polypropylene (PP) with MFR of 0.1 g/10 min


P1-73: styrene-butadiene thermoplastic elastomer


P1-74: styrene-ethylene-butylene-styrene block copolymer (SEBS)


P1-75: styrene-isoprene-styrene block copolymer (SIS)


P1-76: polyurethane (PU) with weight average molecular weight of 1000


P1-77: polyurethane (PU) with weight average molecular weight of 2000


P1-78: polyurethane (PU) with weight average molecular weight of 5000


P1-79: nylon 6 (Ny6) with number average molecular weight of 5000


P1-80: nylon 6 (Ny6) with number average molecular weight of 10000


P1-81: nylon 6 (Ny6) with number average molecular weight of


P1-82: nylon 6 (Ny6) with number average molecular weight of 100000


P1-83: nylon 610 (Ny610)


P1-84: nylon 612 (Ny612)


P1-85: nylon 11 (Ny11)


P1-86: nylon 12 (Ny12)


P1-87: nylon MXD6 (NyMXD6)









TABLE 9-1







thermoplastic polymer composition











thermoplastic
stabilizer composition













Example
polymer
kind
amount (part)
















1-124
P1-1
Ex. 1-1
0.41



1-125
P1-2
Ex. 1-1
0.41



1-126
P1-3
Ex. 1-1
0.41



1-127
P1-3
Ex. 1-2
0.45



1-128
P1-3
Ex. 1-3
0.5



1-129
P1-3
Ex. 1-4
0.6



1-130
P1-3
Ex. 1-19
0.31



1-131
P1-3
Ex. 1-20
0.51



1-132
P1-3
Ex. 1-21
0.51



1-133
P1-3
Ex. 1-22
0.71



1-134
P1-4
Ex. 1-1
0.41



1-135
P1-4
Ex. 1-2
0.45



1-136
P1-4
Ex. 1-3
0.5



1-137
P1-4
Ex. 1-4
0.6



1-138
P1-4
Ex. 1-19
0.31



1-139
P1-4
Ex. 1-20
0.51



1-140
P1-4
Ex. 1-21
0.51



1-141
P1-4
Ex. 1-22
0.71



1-142
P1-5
Ex. 1-1
0.41



1-143
P1-6
Ex. 1-1
0.41



1-144
P1-7
Ex. 1-1
0.41



1-145
P1-7
Ex. 1-2
0.45



1-146
P1-7
Ex. 1-3
0.5



1-147
P1-7
Ex. 1-4
0.6



1-148
P1-7
Ex. 1-19
0.31



1-149
P1-7
Ex. 1-20
0.51



1-150
P1-7
Ex. 1-21
0.51



1-151
P1-7
Ex. 1-22
0.71



1-152
P1-8
Ex. 1-1
0.41



1-153
P1-9
Ex. 1-1
0.41



1-154
P1-10
Ex. 1-1
0.41



1-155
P1-11
Ex. 1-1
0.41



1-156
P1-11
Ex. 1-2
0.45

















TABLE 9-2







thermoplastic polymer composition












thermoplastic
stabilizer composition












Example
polymer
kind
amount (part)
















1-157
P1-11
Ex. 1-3
0.5



1-158
P1-11
Ex. 1-4
0.6



1-159
P1-11
Ex. 1-19
0.31



1-160
P1-11
Ex. 1-20
0.51



1-161
P1-11
Ex. 1-21
0.51



1-162
P1-11
Ex. 1-22
0.71



1-163
P1-12
Ex. 1-1
0.41



1-164
P1-13
Ex. 1-1
0.41



1-165
P1-13
Ex. 1-2
0.45



1-166
P1-13
Ex. 1-3
0.5



1-167
P1-13
Ex. 1-4
0.6



1-168
P1-13
Ex. 1-19
0.31



1-169
P1-13
Ex. 1-20
0.51



1-170
P1-13
Ex. 1-21
0.51



1-171
P1-13
Ex. 1-22
0.71



1-172
P1-14
Ex. 1-1
0.41



1-173
P1-15
Ex. 1-1
0.41



1-174
P1-16
Ex. 1-1
0.41



1-175
P1-17
Ex. 1-1
0.41



1-176
P1-17
Ex. 1-2
0.45



1-177
P1-17
Ex. 1-3
0.5



1-178
P1-17
Ex. 1-4
0.6



1-179
P1-17
Ex. 1-19
0.31



1-180
P1-17
Ex. 1-20
0.51



1-181
P1-17
Ex. 1-21
0.51



1-182
P1-17
Ex. 1-22
0.71



1-183
P1-18
Ex. 1-1
0.41



1-184
P1-19
Ex. 1-1
0.41



1-185
P1-20
Ex. 1-1
0.41



1-186
P1-21
Ex. 1-1
0.41



1-187
P1-22
Ex. 1-1
0.41



1-188
P1-23
Ex. 1-1
0.41



1-189
P1-24
Ex. 1-1
0.41

















TABLE 9-3







thermoplastic polymer composition












thermoplastic
stabilizer composition












Example
polymer
kind
amount (part)







1-190
P1-25
Ex. 1-1
0.41



1-191
P1-26
Ex. 1-1
0.41



1-192
P1-27
Ex. 1-1
0.41



1-192
P1-28
Ex. 1-1
0.41



1-193
P1-29
Ex. 1-1
0.41



1-194
P1-30
Ex. 1-1
0.41



1-195
P1-31
Ex. 1-1
0.41



1-196
P1-32
Ex. 1-1
0.41



1-197
P1-33
Ex. 1-1
0.41



1-198
P1-34
Ex. 1-1
0.41



1-199
P1-35
Ex. 1-1
0.41



1-200
P1-36
Ex. 1-1
0.41



1-201
P1-37
Ex. 1-1
0.41



1-202
P1-38
Ex. 1-1
0.41



1-203
P1-39
Ex. 1-1
0.41



1-204
P1-40
Ex. 1-1
0.41



1-205
P1-41
Ex. 1-1
0.41



1-206
P1-42
Ex. 1-1
0.41



1-207
P1-43
Ex. 1-1
0.41



1-208
P1-44
Ex. 1-1
0.41



1-209
P1-45
Ex. 1-1
0.41



1-210
P1-46
Ex. 1-1
0.41



1-211
P1-47
Ex. 1-1
0.41



1-212
P1-48
Ex. 1-1
0.41



1-213
P1-49
Ex. 1-1
0.41



1-214
P1-50
Ex. 1-1
0.41



1-215
P1-51
Ex. 1-1
0.41



1-216
P1-52
Ex. 1-1
0.41



1-217
P1-53
Ex. 1-1
0.41



1-218
P1-54
Ex. 1-1
0.41



1-219
P1-55
Ex. 1-1
0.41



1-220
P1-56
Ex. 1-1
0.41



1-221
P1-57
Ex. 1-1
0.41



1-222
P1-58
Ex. 1-1
0.41

















TABLE 9-4







thermoplastic polymer composition












thermoplastic
stabilizer composition












Example
polymer
kind
amount (part)







1-223
P1-59
Ex. 1-1
0.41



1-225
P1-60
Ex. 1-1
0.41



1-226
P1-61
Ex. 1-1
0.41



1-227
P1-62
Ex. 1-1
0.41



1-228
P1-63
Ex. 1-1
0.41



1-229
P1-64
Ex. 1-1
0.41



1-230
P1-65
Ex. 1-1
0.41



1-231
P1-66
Ex. 1-1
0.41



1-232
P1-67
Ex. 1-1
0.41



1-233
P1-68
Ex. 1-1
0.41



1-234
P1-69
Ex. 1-1
0.41



1-235
P1-70
Ex. 1-1
0.41



1-236
P1-71
Ex. 1-1
0.41



1-237
P1-70
Ex. 1-1
0.41



1-238
P1-72
Ex. 1-1
0.41



1-239
P1-73
Ex. 1-1
0.41



1-240
P1-74
Ex. 1-1
0.41



1-241
P1-75
Ex. 1-1
0.41



1-242
P1-76
Ex. 1-1
0.41



1-243
P1-77
Ex. 1-1
0.41



1-244
P1-78
Ex. 1-1
0.41



1-245
P1-79
Ex. 1-1
0.41



1-246
P1-80
Ex. 1-1
0.41



1-247
P1-81
Ex. 1-1
0.41



1-248
P1-82
Ex. 1-1
0.41



1-249
P1-83
Ex. 1-1
0.41



1-250
P1-84
Ex. 1-1
0.41



1-251
P1-85
Ex. 1-1
0.41



1-252
P1-86
Ex. 1-1
0.41



1-253
P1-87
Ex. 1-1
0.41










Example 2-1
Production of Stabilizer Composition

Compound (8-1) (0.2 part) and trehalose (0.05 part) were mixed to produce a stabilizer composition.


Example 2-2
Production of Stabilizer Composition

Compound (8-1) (0.1 part) and trehalose (0.01 part) were mixed to produce a stabilizer composition.


Example 2-3
Production of Thermoplastic Polymer Composition

An ethylene-vinyl alcohol copolymer (manufactured by KURARAY CO., LTD., 100 parts) and the total amount of the stabilizer composition obtained in Example 2-1 were dry-blended, the obtained mixture was knead-extruded by a single screw extruder having a screw diameter of 30 mm (“VS30-28 type extruder” manufactured by TANABE PLASTICS MACHINERY CO., LTD.) at temperature 230° C. and screw rotation 50 rpm to give strands, and the strands were cut by a pelletizer to give a thermoplastic polymer composition as pellets.


Example 2-4
Production of Thermoplastic Polymer Composition

In the same manner as in Example 2-3 except that the stabilizer composition obtained in Example 2-2 was used instead of the stabilizer composition obtained in Example 2-1, a thermoplastic polymer composition was obtained as pellets.


Comparative Example 2-1

In the same manner as in Example 2-3 except that compound (8-1) (0.1 part) was used instead of the stabilizer composition obtained in Example 2-1, a thermoplastic polymer composition was obtained as pellets.


Experimental Example 2-1
Evaluation of Processing Stability

For evaluation of the processing stability during operation of extrusion processing, Dwell MFR tests were performed using the pellets of each thermoplastic polymer compositions obtained in Example 2-34 and Comparative Example 2-1. The test was based on JIS K 7210, and 0 min Dwell MFR (g/10 min) and 30 min Dwell MFR (g/10 min) were measured by a melt indexer (L217-E14011 manufactured by Technol Seven Co., Ltd.) under the conditions of temperature in a cylinder 270° C. and load 2.16 kg. The 0 min Dwell MFR was measured after 5 min preheating time after filling pellets of the thermoplastic polymer composition in the cylinder. The 30 min Dwell MFR was measured after 30 min dwell time, including the preheating time, of the pellets of the thermoplastic polymer composition in the cylinder. The MFR variation rate was calculated by the following formula and using the thus-measured 0 min Dwell MFR and 30 min Dwell MFR:





MFR variation rate (%)=absolute value of (30 min Dwell MFR−0 min Dwell MFR)×100/(0 min Dwell MFR)


A smaller MFR variation rate means better processing stability of the thermoplastic polymer composition.


The compositions of the stabilizer compositions of Example 2-1 and Example 2-2 are shown in Table 10, and the compositions, 0 min Dwell MFRs, 30 min Dwell MFRs and MFR variation rates of the thermoplastic polymer compositions of Example 2-3, Example 2-4 and Comparative Example 2-1 are shown in Table 11.









TABLE 10







stabilizer composition











compound
trehalose
mass ratio of



(8-1) (part)
(part)
compound (8-1):trehalose














Ex. 2-1
0.2
0.05
 8:2


Ex. 2-2
0.1
0.01
91:9
















TABLE 11







thermoplastic polymer composition












stabilizer
0 min
30 min
MFR



composition
Dwell
Dwell
varia-














EVOH

amount
MFR
MFR
tion



(part)
kind
(part)
(g/10 min)
(g/10 min)
rate (%)

















Ex.
100
Ex.
0.25
13.7
15.9
16.1


2-3

2-1


Ex.
100
Ex.
0.11
13.5
13.1
3.0


2-4

2-2


Comp.
100
compound
0.1
14.3
9.4
34.3


Ex.

(8-1)


2-1





EVOH: ethylene-vinyl alcohol copolymer






Example 2-5-Example 2-91
Production of Stabilizer Composition

Stabilizer compositions are obtained by mixing the components described in Table 12-1-Table 12-3. Thermoplastic polymer compositions containing these stabilizer compositions are predicted to be superior in processing stability.









TABLE 12-1







stabilizer composition












compound

compound
compounds



(8-1)
trehalose
(2)
(3)-(7)














amount
amount

amount

amount


Example
(part)
(part)
kind
(part)
kind
(part)
















2-5
0.01
0.2






2-6
0.05
0.15






2-7
0.1
0.1






2-8
0.15
0.05






2-9
0.2
0.01






2-10
0.2
0.005






2-11
0.2
0.001






2-12
0.2
0.0005






2-13
0.2
0.0002






2-14
0.01
0.2
(2-1)
0.2




2-15
0.1
0.1
(2-1)
0.2




2-16
0.2
0.01
(2-1)
0.2




2-17
0.2
0.005
(2-1)
0.2




2-18
0.2
0.001
(2-1)
0.2




2-19
0.2
0.0005
(2-1)
0.2




2-20
0.01
0.2
(2-2)
0.2




2-21
0.1
0.1
(2-2)
0.2




2-22
0.2
0.01
(2-2)
0.2




2-23
0.2
0.005
(2-2)
0.2




2-24
0.2
0.001
(2-2)
0.2




2-25
0.2
0.0005
(2-2)
0.2




2-26
0.01
0.2
(2-3)
0.2




2-27
0.1
0.1
(2-3)
0.2




2-28
0.2
0.01
(2-3)
0.2




2-29
0.2
0.005
(2-3)
0.2




2-30
0.2
0.001
(2-3)
0.2




2-31
0.2
0.0005
(2-3)
0.2




2-32
0.01
0.2


(3-1)
0.2


2-33
0.1
0.1


(3-1)
0.2


2-34
0.2
0.01


(3-1)
0.2


2-35
0.2
0.005


(3-1)
0.2
















TABLE 12-2







stabilizer composition












compound

compound
compounds



(8-1)
trehalose
(2)
(3)-(7)














amount
amount

amount

amount


Example
(part)
(part)
kind
(part)
kind
(part)
















2-36
0.2
0.001


(3-1)
0.2


2-37
0.2
0.0005


(3-1)
0.2


2-38
0.01
0.2


(4-1)
0.2


2-39
0.1
0.1


(4-1)
0.2


2-40
0.2
0.01


(4-1)
0.2


2-41
0.2
0.005


(4-1)
0.2


2-42
0.2
0.001


(4-1)
0.2


2-43
0.2
0.0005


(4-1)
0.2


2-44
0.01
0.2


(5-1)
0.2


2-45
0.1
0.1


(5-1)
0.2


2-46
0.2
0.01


(5-1)
0.2


2-47
0.2
0.005


(5-1)
0.2


2-48
0.2
0.001


(5-1)
0.2


2-49
0.2
0.0005


(5-1)
0.2


2-50
0.01
0.2


(5-2)
0.2


2-51
0.1
0.1


(5-2)
0.2


2-52
0.2
0.01


(5-2)
0.2


2-53
0.2
0.005


(5-2)
0.2


2-54
0.2
0.001


(5-2)
0.2


2-55
0.2
0.0005


(5-2)
0.2


2-56
0.01
0.2


(5-3)
0.2


2-57
0.1
0.1


(5-3)
0.2


2-58
0.2
0.01


(5-3)
0.2


2-59
0.2
0.005


(5-3)
0.2


2-60
0.2
0.001


(5-3)
0.2


2-61
0.2
0.0005


(5-3)
0.2


2-62
0.01
0.2


(6-1)
0.2
















TABLE 12-3







stabilizer composition












compound

compound
compounds



(8-1)
trehalose
(2)
(3)-(7)














amount
amount

amount

amount


Example
(part)
(part)
kind
(part)
kind
(part)
















2-63
0.1
0.1


(6-1)
0.2


2-64
0.2
0.01


(6-1)
0.2


2-65
0.2
0.005


(6-1)
0.2


2-66
0.2
0.001


(6-1)
0.2


2-67
0.2
0.0005


(6-1)
0.2


2-68
0.01
0.2


(7-1)
0.2


2-69
0.1
0.1


(7-1)
0.2


2-70
0.2
0.01


(7-1)
0.2


2-71
0.2
0.005


(7-1)
0.2


2-72
0.2
0.001


(7-1)
0.2


2-73
0.2
0.0005


(7-1)
0.2


2-74
0.01
0.2
(2-1)
0.2
(3-1)
0.2


2-75
0.1
0.1
(2-1)
0.2
(3-1)
0.2


2-76
0.2
0.01
(2-1)
0.2
(3-1)
0.2


2-77
0.2
0.005
(2-1)
0.2
(3-1)
0.2


2-78
0.2
0.001
(2-1)
0.2
(3-1)
0.2


2-79
0.2
0.0005
(2-1)
0.2
(3-1)
0.2


2-80
0.01
0.2
(2-2)
0.2
(3-1)
0.2


2-81
0.1
0.1
(2-2)
0.2
(3-1)
0.2


2-82
0.2
0.01
(2-2)
0.2
(3-1)
0.2


2-83
0.2
0.005
(2-2)
0.2
(3-1)
0.2


2-84
0.2
0.001
(2-2)
0.2
(3-1)
0.2


2-85
0.2
0.0005
(2-2)
0.2
(3-1)
0.2


2-86
0.01
0.2
(2-3)
0.2
(3-1)
0.2


2-87
0.1
0.1
(2-3)
0.2
(3-1)
0.2


2-88
0.2
0.01
(2-3)
0.2
(3-1)
0.2


2-89
0.2
0.005
(2-3)
0.2
(3-1)
0.2


2-90
0.2
0.001
(2-3)
0.2
(3-1)
0.2


2-91
0.2
0.0005
(2-3)
0.2
(3-1)
0.2









Example 2-92-Example 2-208
Production of Thermoplastic Polymer Composition

In the same manner as in Example 2-2 except that the thermoplastic polymers (100 parts) described in Table 13-1-Table 13-4, and the stabilizer composition in the kinds and amounts described in Table 13-1-Table 13-4 are used, thermoplastic polymer compositions are obtained as pellets. The obtained thermoplastic polymer compositions are predicted to be superior in processing stability.


The meanings of the abbreviations of the thermoplastic polymers described in Table 13-1-Table 13-4 are as follows. The MFR described below is the 0 min Dwell MFR of the thermoplastic polymer as measured under the conditions of Experimental Example 2-1.


P2-1: high density polyethylene (HDPE) (excluding P2-45-P2-50)


P2-2: low density polyethylene (LDPE) (excluding P2-51-P2-57)


P2-3: linear low density polyethylene (LLDPE) (excluding P2-58-P2-64)


P2-4: ethylene-ethyl acrylate copolymer (EEA)


P2-5: ethylene-vinyl acetate copolymer (EVA)


P2-6: polypropylene (PP) (excluding P2-65-P2-71)


P2-7: propylene-ethylene random copolymer


P2-8: propylene-α-olefin random copolymer


P2-9: propylene-ethylene-α-olefin copolymer


P2-10: polystyrene (PS)


P2-11: acrylonitrile-styrene copolymer (SAN)


P2-12: acrylonitrile-butadiene-styrene copolymer (ABS)


P2-13: special acrylic rubber-acrylonitrile-styrene copolymer


P2-14: acrylonitrile-chlorinated polyethylene-styrene copolymer (ACS)


P2-15: polybutadiene rubber (BR)


P2-16: styrene-butadiene copolymer (SB)


P2-17: styrene-butadiene block copolymer (SBS)


P2-18: chlorinated polyethylene (CPE)


P2-19: polychloroprene


P2-20: chlorinated rubber


P2-21: poly(vinyl chloride) (PVC)


P2-22: poly(vinylidene chloride) (PVDC)


P2-23: methacrylate resin


P2-24: fluororesin


P2-25: polyacetal (POM)


P2-26: grafted poly(phenylene ether) resin


P2-27: poly(phenylene sulfide) resin (PPS)


P2-28: polyurethane (PU) (excluding P2-75-P2-77)


P2-29: polyamide (PA) (excluding P2-78-P2-86)


P2-30: poly(ethylene terephthalate) (PET)


P2-31: poly(butylene terephthalate) (PBT)


P2-32: poly(lactic acid) (PLA)


P2-33: polycarbonate (PC)


P2-34: polyacrylate


P2-35: polysulfone (PPSU)


P2-36: poly(ether ether ketone) (PEEK)


P2-37: poly(ether sulfone) (PES)


P2-38: aromatic polyester


P2-39: diallyl phthalate prepolymer


P2-40: silicone resin (SI)


P2-41: 1,2-polybutadiene


P2-42: polyisoprene


P2-43: butadiene-acrylonitrile copolymer (NBR)


P2-44: ethylene-methyl methacrylate copolymer (EMMA)


P2-45: high density polyethylene (HDPE) with MFR of 40 g/10 min


P2-46: high density polyethylene (HDPE) with MFR of 20 g/10 min


P2-47: high density polyethylene (HDPE) with MFR of 10 g/10 min


P2-48: high density polyethylene (HDPE) with MFR of 5 g/10 min


P2-49: high density polyethylene (HDPE) with MFR of 1 g/10 min


P2-50: high density polyethylene (HDPE) with MFR of 0.1 g/10 min


P2-51: low density polyethylene (LDPE) with MFR of 75 g/10 min


P2-52: low density polyethylene (LDPE) with MFR of 50 g/10 min


P2-53: low density polyethylene (LDPE) with MFR of 25 g/10 min


P2-54: low density polyethylene (LDPE) with MFR of 10 g/10 min


P2-55: low density polyethylene (LDPE) with MFR of 5 g/10 min


P2-56: low density polyethylene (LDPE) with MFR of 2 g/10 min


P2-57: low density polyethylene (LDPE) with MFR of 1 g/10 min


P2-58: low density polyethylene (LDPE) with MFR of 0.1 g/10 min


P2-59: linear low density polyethylene (LLDPE) with MFR of 100 g/10 min


P2-60: linear low density polyethylene (LLDPE) with MFR of 50 g/10 min


P2-61: linear low density polyethylene (LLDPE) with MFR of 25 g/10 min


P2-62: linear low density polyethylene (LLDPE) with MFR of 10 g/10 min


P2-63: linear low density polyethylene (LLDPE) with MFR of 5 g/10 min


P2-64: linear low density polyethylene (LLDPE) with MFR of 1 g/10 min


P2-65: linear low density polyethylene (LLDPE) with MFR of 0.1 g/10 min


P2-66: polypropylene (PP) with MFR of 100 g/10 min


P2-67: polypropylene (PP) with MFR of 50 g/10 min


P2-68: polypropylene (PP) with MFR of 25 g/10 min


P2-69: polypropylene (PP) with MFR of 10 g/10 min


P2-70: polypropylene (PP) with MFR of 5 g/10 min


P2-71: polypropylene (PP) with MFR of 1 g/10 min


P2-72: polypropylene (PP) with MFR of 0.1 g/10 min


P2-73: styrene-butadiene thermoplastic elastomer


P2-74: styrene-ethylene-butylene-styrene block copolymer (SEBS)


P2-75: styrene-isoprene-styrene block copolymer (SIS)


P2-76: polyurethane (PU) with weight average molecular weight of 1000


P2-77: polyurethane (PU) with weight average molecular weight of 2000


P2-78: polyurethane (PU) with weight average molecular weight of 5000


P2-79: nylon 6 (Ny6) with number average molecular weight of 5000


P2-80: nylon 6 (Ny6) with number average molecular weight of 10000


P2-81: nylon 6 (Ny6) with number average molecular weight of 50000


P2-82: nylon 6 (Ny6) with number average molecular weight of 100000


P2-83: nylon 610 (Ny610)


P2-84: nylon 612 (Ny612)


P2-85: nylon 11 (Ny11)


P2-86: nylon 12 (Ny12)


P2-87: nylon MXD6 (NyMXD6)









TABLE 13-1







thermoplastic polymer composition











thermoplastic
stabilizer composition













Example
polymer
kind
amount (part)
















2-92
P2-1
Ex. 2-1
0.25



2-93
P2-2
Ex. 2-1
0.25



2-94
P2-3
Ex. 2-1
0.25



2-95
P2-3
Ex. 2-2
0.11



2-96
P2-3
Ex. 2-13
0.2002



2-97
P2-3
Ex. 2-16
0.41



2-98
P2-3
Ex. 2-34
0.41



2-99
P2-3
Ex. 2-76
0.61



2-100
P2-4
Ex. 2-1
0.25



2-101
P2-5
Ex. 2-1
0.25



2-102
P2-6
Ex. 2-1
0.25



2-103
P2-6
Ex. 2-2
0.11



2-104
P2-6
Ex. 2-13
0.2002



2-105
P2-6
Ex. 2-16
0.41



2-106
P2-6
Ex. 2-34
0.41



2-107
P2-6
Ex. 2-76
0.61



2-108
P2-7
Ex. 2-1
0.25



2-109
P2-8
Ex. 2-1
0.25



2-110
P2-9
Ex. 2-1
0.25



2-111
P2-10
Ex. 2-1
0.25



2-112
P2-10
Ex. 2-2
0.11



2-113
P2-10
Ex. 2-13
0.2002



2-114
P2-10
Ex. 2-16
0.41



2-115
P2-10
Ex. 2-34
0.41



2-116
P2-10
Ex. 2-76
0.61



2-117
P2-11
Ex. 2-1
0.25



2-118
P2-12
Ex. 2-1
0.25



2-119
P2-12
Ex. 2-2
0.11



2-120
P2-12
Ex. 2-13
0.2002

















TABLE 13-2







thermoplastic polymer composition












thermoplastic
stabilizer composition












Example
polymer
kind
amount (part)
















2-121
P2-12
Ex. 2-16
0.41



2-122
P2-12
Ex. 2-34
0.41



2-123
P2-12
Ex. 2-76
0.61



2-124
P-13
Ex. 2-1
0.25



2-125
P2-14
Ex. 2-1
0.25



2-126
P2-15
Ex. 2-1
0.25



2-127
P2-16
Ex. 2-1
0.25



2-128
P2-16
Ex. 2-2
0.11



2-129
P2-16
Ex. 2-13
0.2002



2-130
P2-16
Ex. 2-16
0.41



2-131
P2-16
Ex. 2-34
0.41



2-132
P2-16
Ex. 2-76
0.61



2-133
P2-17
Ex. 2-1
0.11



2-134
P2-17
Ex. 2-2
0.11



2-135
P2-17
Ex. 2-13
0.2002



2-136
P2-17
Ex. 2-16
0.41



2-137
P2-17
Ex. 2-34
0.41



2-138
P2-17
Ex. 2-76
0.61



2-139
P2-18
Ex. 2-1
0.25



2-140
P2-19
Ex. 2-1
0.25



2-141
P2-20
Ex. 2-1
0.25



2-142
P2-21
Ex. 2-1
0.25



2-143
P2-22
Ex. 2-1
0.25



2-144
P2-23
Ex. 2-1
0.25



2-145
P2-24
Ex. 2-1
0.25



2-146
P2-25
Ex. 2-1
0.25



2-147
P2-26
Ex. 2-1
0.25



2-148
P2-27
Ex. 2-1
0.25



2-149
P2-28
Ex. 2-1
0.25

















TABLE 13-3







thermoplastic polymer composition












thermoplastic
stabilizer composition












Example
polymer
kind
amount (part)







2-150
P2-29
Ex. 2-1
0.25



2-151
P2-30
Ex. 2-1
0.25



2-152
P2-31
Ex. 2-1
0.25



2-153
P2-32
Ex. 2-1
0.25



2-154
P2-33
Ex. 2-1
0.25



2-155
P2-34
Ex. 2-1
0.25



2-156
P2-35
Ex. 2-1
0.25



2-157
P2-36
Ex. 2-1
0.25



2-158
P2-37
Ex. 2-1
0.25



2-159
P2-38
Ex. 2-1
0.25



2-160
P2-39
Ex. 2-1
0.25



2-161
P2-40
Ex. 2-1
0.25



2-162
P2-41
Ex. 2-1
0.25



2-163
P2-42
Ex. 2-1
0.25



2-164
P2-43
Ex. 2-1
0.25



2-165
P2-44
Ex. 2-1
0.25



2-166
P2-45
Ex. 2-1
0.11



2-167
P2-46
Ex. 2-1
0.11



2-168
P2-47
Ex. 2-1
0.11



2-169
P2-48
Ex. 2-1
0.11



2-170
P2-49
Ex. 2-1
0.11



2-171
P2-50
Ex. 2-1
0.11



2-172
P2-51
Ex. 2-1
0.11



2-173
P2-52
Ex. 2-1
0.11



2-174
P2-53
Ex. 2-1
0.11



2-175
P2-54
Ex. 2-1
0.11



2-176
P2-55
Ex. 2-1
0.11



2-177
P2-56
Ex. 2-1
0.11



2-178
P2-57
Ex. 2-1
0.11

















TABLE 13-4







thermoplastic polymer composition












thermoplastic
stabilizer composition












Example
polymer
kind
amount (part)







2-179
P2-58
Ex. 2-1
0.11



2-180
P2-59
Ex. 2-1
0.11



2-181
P2-60
Ex. 2-1
0.11



2-182
P2-61
Ex. 2-1
0.11



2-183
P2-62
Ex. 2-1
0.11



2-184
P2-63
Ex. 2-1
0.11



2-185
P2-64
Ex. 2-1
0.11



2-186
P2-65
Ex. 2-1
0.11



2-187
P2-66
Ex. 2-1
0.11



2-188
P2-67
Ex. 2-1
0.11



2-189
P2-68
Ex. 2-1
0.11



2-190
P2-69
Ex. 2-1
0.11



2-191
P2-70
Ex. 2-1
0.11



2-192
P2-71
Ex. 2-1
0.11



2-193
P2-72
Ex. 2-1
0.11



2-194
P2-73
Ex. 2-1
0.11



2-195
P2-74
Ex. 2-1
0.11



2-196
P2-75
Ex. 2-1
0.11



2-197
P2-76
Ex. 2-1
0.11



2-198
P2-77
Ex. 2-1
0.11



2-199
P2-78
Ex. 2-1
0.11



2-200
P2-79
Ex. 2-1
0.11



2-201
P2-80
Ex. 2-1
0.11



2-202
P2-81
Ex. 2-1
0.11



2-203
P2-82
Ex. 2-1
0.11



2-204
P2-83
Ex. 2-1
0.11



2-205
P2-84
Ex. 2-1
0.11



2-206
P2-85
Ex. 2-1
0.11



2-207
P2-86
Ex. 2-1
0.11



2-208
P2-87
Ex. 2-1
0.11










Example 3-1
Production of Stabilizer Composition)

Compound (2-1) (0.2 part), trehalose (0.01 part) and compound (1-1) (0.3 part) were mixed to produce a stabilizer composition.


Reference Example 3-1

Compound (2-1) (0.2 part) and compound (1-1) (0.3 part) were mixed to produce a stabilizer composition.


Example 3-2
Production of Thermoplastic Polymer Composition)

A styrene-butadiene block copolymer (manufactured by Asahi Kasei Corp., 100 parts) and the stabilizer composition (0.51 part) obtained in Example 3-1 were dry-blended, the obtained mixture was knead-extruded by a single screw extruder having a screw diameter of 30 mm (“VS30-28 type extruder” manufactured by TANABE PLASTICS MACHINERY CO., LTD.) at temperature 230° C. and screw rotation 50 rpm to give strands, and the strands were cut by a pelletizer to give a thermoplastic polymer composition as pellets.


Reference Example 3-2

In the same manner as in Example 3-2 except that the composition (0.5 part) obtained in Reference Example 3-1 was used instead of the stabilizer composition obtained in Example 3-1, a thermoplastic polymer composition was obtained as pellets.


Experimental Example 3-1
Evaluation of Processing Stability)

For evaluation of the processing stability during operation of extrusion processing, Dwell MFR tests were performed using the pellets of each thermoplastic polymer composition obtained in Example 3-2 and Reference Example 3-2. The test was based on JIS K 7210, and 0 min Dwell MFR (g/10 min) and 30 min Dwell MFR (g/10 min) were measured by a melt indexer (L217-E14011 manufactured by Technol Seven Co., Ltd.) under the conditions of temperature in a cylinder 270° C. and load 2.16 kg. The 0 min Dwell MFR was measured after 5 min preheating time after filling pellets of thermoplastic polymer composition in the cylinder. The 30 min Dwell MFR was measured after 30 min dwell time, including the preheating time, of the pellets of the thermoplastic polymer composition in the cylinder. The MFR variation rate was calculated by the following formula and using the thus-measured 0 min Dwell MFR and 30 min Dwell MFR:





MFR variation rate (%)=absolute value of (30 min Dwell MFR−0 min Dwell MFR)×100/(0 min Dwell MFR)


The compositions of the stabilizer compositions of Example 3-1 and Reference Example 3-1 are shown in Table 14, and the compositions, 0 min Dwell MFRs, 30 min Dwell MFRs and MFR variation rates of the thermoplastic polymer compositions of Example 3-2 and Reference Example 3-2 are shown in Table 15. In a thermoplastic polymer composition containing a styrene-butadiene block copolymer, a smaller MFR variation rate means better processing stability thereof.


[Table 14]









TABLE 14







stabilizer composition











compound (2-1)
trehalose
compound (1-1)



(part)
(part)
(part)














Ex. 3-1
0.2
0.01
0.3


Ref. Ex. 3-1
0.2

0.3
















TABLE 15







thermoplastic polymer composition












stabilizer
0 min
30 min
MFR



composition
Dwell
Dwell
variation
















amount
MFR
MFR
rate



SBS (part)
kind
(part)
(g/10 min)
(g/10 min)
(%)

















Ex.
100
Ex.
0.51
23.7
14.9
37.1


3-2

3-1


Ref.
100
Ref.
0.5
23.4
10.5
55.3


Ex.

Ex.


3-2

3-1





SBS: styrene-butadiene block copolymer






Example 3-3
Production of Stabilizer Composition

Compound (2-2) (0.1 part) and trehalose (0.1 part) were mixed to produce a stabilizer composition.


Example 3-4
Production of Thermoplastic Polymer Composition

A polypropylene (manufactured by Sumitomo Chemical Company, Limited, 100 parts) and the stabilizer composition (0.2 part) obtained in Example 3-3 were dry-blended, the obtained mixture was knead-extruded by a single screw extruder having a screw diameter of 30 mm (“VS30-28 type extruder” manufactured by TANABE PLASTICS MACHINERY CO., LTD.) at temperature 230° C. and screw rotation 50 rpm to give strands, and the strands were cut by a pelletizer to give a thermoplastic polymer composition as pellets.


Comparative Example 3-1

In the same manner as in Example 3-4 except that compound (2-2) (0.1 part) was used instead of the stabilizer composition obtained in Example 3-3, a thermoplastic polymer composition was obtained as pellets.


Experimental Example 3-2
Evaluation of Processing Stability

For evaluation of the processing stability during operation of extrusion processing, Dwell MFR tests were performed using the pellets of each thermoplastic polymer composition obtained in Example 3-4 and Comparative Example 3-1. The test was based on JIS K 7210, and 30 min Dwell MFR (g/10 min) were measured by a melt indexer (L217-E14011 manufactured by Technol Seven Co., Ltd.) under the conditions of temperature in a cylinder 270° C. and load 2.16 kg. The 30 min Dwell MFR was measured after 30 min dwell time, including the preheating time, of the pellets of the thermoplastic polymer composition in the cylinder.


The composition of the stabilizer composition in Example 3-3 is shown in Table 16, and the compositions and 30 min Dwell MFRs of the thermoplastic polymer compositions of Example 3-4 and Comparative Example 3-1 are shown in Table 17. In a thermoplastic polymer composition containing polypropylene, a smaller 30 min Dwell MFR means better processing stability thereof.









TABLE 16







stabilizer composition










compound (2-2) (part)
trehalose (part)













Ex. 3-3
0.1
0.1
















TABLE 17







thermoplastic polymer composition











PP
stabilizer composition
30 min Dwell MFR












(part)
kind
amount (part)
(g/10 min)















Ex.
100
Ex.
0.2
16.5


3-4

3-3


Comp.
100
compound
0.1
22.8


Ex. 3-1

(2-2)





PP: polypropylene






Example 3-5-Example 3-7
Production of Stabilizer Composition

Compound (2-1), trehalose, compound (1-1) and compound (3-1) in the amounts described in Table 18 were mixed to respectively produce stabilizer compositions.


Example 3-8
Production of Thermoplastic Polymer Composition

A styrene-butadiene block copolymer (manufactured by DENKI KAGAKU KOGYO KABUSHIKI KAISHA, 100 parts) and the stabilizer composition (0.21 part) obtained in Example 3-5 were dry-blended, the obtained mixture was knead-extruded by a single screw extruder having a screw diameter of 30 mm (“VS30-28 type extruder” manufactured by TANABE PLASTICS MACHINERY CO., LTD.) at temperature 230° C. and screw rotation 50 rpm to give strands, and the strands were cut by a pelletizer to give a thermoplastic polymer composition as pellets.


Example 3-9
Production of Thermoplastic Polymer Composition

In the same manner as in Example 3-8 except that the stabilizer composition (0.41 part) obtained in Example 3-6 was used instead of the stabilizer composition obtained in Example 3-5, a thermoplastic polymer composition was obtained as pellets.


Example 3-10
Production of Thermoplastic Polymer Composition

In the same manner as in Example 3-8 except that the stabilizer composition (0.71 part) obtained in Example 3-7 was used instead of the stabilizer composition obtained in Example 3-5, a thermoplastic polymer composition was obtained as pellets.


Comparative Example 3-2

In the same manner as in Example 3-8 except that compound (2-1) (0.2 part) was used instead of the stabilizer composition obtained in Example 3-5, a thermoplastic polymer composition was obtained as pellets.


Experimental Example 3-3
Evaluation of Processing Stability

0 min Dwell MFRs (g/10 min) and 30 min Dwell MFRs (g/10 min) were measured using the pellets of each thermoplastic polymer composition obtained in Example 3-8-Example 3-10 and Comparative Example 3-2 and in the same manner as in Experimental Example 3-1, and the MFR variation rates (%) were calculated. These results are shown in Table 19.









TABLE 18







stabilizer composition












compound

compound
compound



(2-1)
trehalose
(1-1)
(3-1)



amount
amount
amount
amount



(part)
(part)
(part)
(part)

















Ex. 3-5
0.2
0.01





Ex. 3-6
0.2
0.01

0.2



Ex. 3-7
0.2
0.01
0.3
0.2

















TABLE 19







thermoplastic polymer composition












stabilizer
0 min
30 min
MFR



composition
Dwell
Dwell
variation














SBS

amount
MFR
MFR
rate



(part)
kind
(part)
(g/10 min)
(g/10 min)
(%)

















Ex.
100
Ex.
0.21
16.3
3.0
81.6


3-8

3-5


Ex.
100
Ex.
0.41
20.6
8.9
58.3


3-9

3-6


Ex.
100
Ex.
0.71
23.1
15.4
33.3


3-10

3-7


Comp.
100
compound
0.2
14.7
1.2
91.8


Ex.

(2-1)


3-2





SBS: styrene-butadiene block copolymer






Example 3-11-Example 3-78
Production of Stabilizer Composition

Stabilizer compositions are obtained by mixing the components described in Table 20-1 and Table 20-2. The thermoplastic polymer compositions containing these stabilizer compositions are predicted to be superior in processing stability.









TABLE 20-1







stabilizer composition













compounds



compound (2)
trehalose
(1), (3)-(8)


















amount
amount

amount

amount

amount


Example
kind
(part)
(part)
kind
(part)
kind
(part)
kind
(part)



















3-11
(2-1)
0.01
0.2








3-12
(2-1)
0.05
0.15








3-13
(2-1)
0.1
0.1








3-14
(2-1)
0.15
0.05








3-15
(2-1)
0.2
0.001








3-16
(2-1)
0.2
0.0002








3-17
(2-2)
0.01
0.2








3-18
(2-2)
0.05
0.15








3-19
(2-2)
0.1
0.1








3-20
(2-2)
0.15
0.05








3-21
(2-2)
0.2
0.01








3-22
(2-2)
0.2
0.001








3-23
(2-2)
0.2
0.0002








3-24
(2-3)
0.01
0.2








3-25
(2-3)
0.05
0.15








3-26
(2-3)
0.1
0.1








3-27
(2-3)
0.15
0.05








3-28
(2-3)
0.2
0.01








3-29
(2-3)
0.2
0.001








3-30
(2-3)
0.2
0.0002








3-31
(2-1)
0.01
0.2
(1-1)
0.2






3-32
(2-1)
0.2
0.01
(1-1)
0.2






3-33
(2-1)
0.2
0.0002
(1-1)
0.2






3-34
(2-2)
0.01
0.2
(1-1)
0.2






3-35
(2-2)
0.2
0.01
(1-1)
0.2






3-36
(2-2)
0.2
0.0002
(1-1)
0.2






3-37
(2-3)
0.01
0.2
(1-1)
0.2






3-38
(2-3)
0.2
0.01
(1-1)
0.2






3-39
(2-3)
0.2
0.0002
(1-1)
0.2






3-40
(2-1)
0.01
0.2
(1-2)
0.2






3-41
(2-1)
0.2
0.01
(1-2)
0.2






3-42
(2-1)
0.2
0.0002
(1-2)
0.2




















TABLE 20-2







stabilizer composition











compound

compounds



(2)
trehalose
(1), (3)-(8)


















amount
amount

amount

amount

amount


Example
kind
(part)
(part)
kind
(part)
kind
(part)
kind
(part)





3-43
(2-1)
0.2
0.01
(3-1)
0.2






3-44
(2-2)
0.2
0.01
(3-1)
0.2






3-45
(2-3)
0.2
0.01
(3-1)
0.2






3-46
(2-1)
0.2
0.01
(4-1)
0.2






3-47
(2-2)
0.2
0.01
(4-1)
0.2






3-48
(2-3)
0.2
0.01
(4-1)
0.2






3-49
(2-1)
0.2
0.01
(5-1)
0.2






3-50
(2-2)
0.2
0.01
(5-1)
0.2






3-51
(2-3)
0.2
0.01
(5-1)
0.2






3-52
(2-1)
0.2
0.01
(5-2)
0.2






3-53
(2-2)
0.2
0.01
(5-2)
0.2






3-54
(2-3)
0.2
0.01
(5-2)
0.2






3-55
(2-1)
0.2
0.01
(5-3)
0.2






3-56
(2-2)
0.2
0.01
(5-3)
0.2






3-57
(2-3)
0.2
0.01
(5-3)
0.2






3-58
(2-1)
0.2
0.01
(6-1)
0.2






3-59
(2-2)
0.2
0.01
(6-1)
0.2






3-60
(2-3)
0.2
0.01
(6-1)
0.2






3-61
(2-1)
0.2
0.01
(7-1)
0.2






3-62
(2-2)
0.2
0.01
(7-1)
0.2






3-63
(2-3)
0.2
0.01
(7-1)
0.2






3-64
(2-1)
0.2
0.01
(8-1)
0.2






3-65
(2-2)
0.2
0.01
(8-1)
0.2






3-66
(2-3)
0.2
0.01
(8-1)
0.2






3-67
(2-1)
0.2
0.01
(1-1)
0.2
(3-1)
0.2




3-68
(2-2)
0.2
0.01
(1-1)
0.2
(3-1)
0.2




3-69
(2-3)
0.2
0.01
(1-1)
0.2
(3-1)
0.2




3-70
(2-1)
0.2
0.01
(1-1)
0.2
(8-1)
0.2




3-71
(2-2)
0.2
0.01
(1-1)
0.2
(8-1)
0.2




3-72
(2-3)
0.2
0.01
(1-1)
0.2
(8-1)
0.2




3-73
(2-1)
0.2
0.01
(3-1)
0.2
(8-1)
0.2




3-74
(2-2)
0.2
0.01
(3-1)
0.2
(8-1)
0.2




3-75
(2-3)
0.2
0.01
(3-1)
0.2
(8-1)
0.2




3-76
(2-1)
0.2
0.01
(1-1)
0.2
(3-1)
0.2
(8-1)
0.2


3-77
(2-2)
0.2
0.01
(1-1)
0.2
(3-1)
0.2
(8-1)
0.2


3-78
(2-3)
0.2
0.01
(1-1)
0.2
(3-1)
0.2
(8-1)
0.2









Example 3-79-Example 3-134
Production of Thermoplastic Polymer Composition

In the same manner as in Example 3-4 except that the thermoplastic polymers (100 parts) described in Table 21-1 and Table 21-2 and the stabilizer composition in the kinds and amounts described in Table 21-1 and Table 21-2 are used, thermoplastic polymer compositions are obtained as pellets. The obtained thermoplastic polymer compositions are predicted to be superior in processing stability.


The meanings of the abbreviations of the thermoplastic polymers described in Table 21-1 and Table 21-2 are as follows.


P3-1: high density polyethylene (HDPE)


P3-2: low density polyethylene (LDPE)


P3-3: linear low density polyethylene (LLDPE)


P3-4: ethylene-vinyl alcohol copolymer (EVOH)


P3-5: ethylene-ethyl acrylate copolymer (EEA)


P3-6: ethylene-vinyl acetate copolymer (EVA)


P3-7: propylene-ethylene random copolymer


P3-8: propylene-α-olefin random copolymer


P3-9: propylene-ethylene-α-olefin copolymer


P3-10: polystyrene (PS)


P3-11: acrylonitrile-styrene copolymer (SAN)


P3-12: acrylonitrile-butadiene-styrene copolymer (ABS)


P3-13: special acrylic rubber-acrylonitrile-styrene copolymer


P3-14: acrylonitrile-chlorinated polyethylene-styrene copolymer (ACS)


P3-15: polybutadiene rubber (BR)


P3-16: styrene-butadiene copolymer (SB)


P3-17: styrene-butadiene block copolymer (SBS)


P3-18: chlorinated polyethylene (CPE)


P3-19: polychloroprene


P3-20: chlorinated rubber


P3-21: poly(vinyl chloride) (PVC)


P3-22: poly(vinylidene chloride) (PVDC)


P3-23: methacrylate resin


P3-24: fluororesin


P3-25: polyacetal (POM)


P3-26: grafted poly(phenylene ether) resin


P3-27: poly(phenylene sulfide) resin (PPS)


P3-28: polyurethane (PU)


P3-29: polyamide (PA)


P3-30: poly(ethylene terephthalate) (PET)


P3-31: poly(butylene terephthalate) (PBT)


P3-32: poly(lactic acid) (PLA)


P3-33: polycarbonate (PC)


P3-34: polyacrylate


P3-35: polysulfone (PPSU)


P3-36: poly(ether ether ketone) (PEEK)


P3-37: poly(ether sulfone) (PES)


P3-38: aromatic polyester


P3-39: diallyl phthalate prepolymer


P3-40: silicone resin (SI)


P3-41: 1,2-polybutadiene


P3-42: polyisoprene


P3-43: butadiene-acrylonitrile copolymer (NBR)


P3-44: ethylene-methyl methacrylate copolymer (EMMA)









TABLE 21-1







thermoplastic polymer composition











thermoplastic
stabilizer composition













Example
polymer
kind
amount (part)







3-79
P3-1
Ex. 3-5
0.21



3-80
P3-2
Ex. 3-5
0.21



3-81
P3-3
Ex. 3-5
0.21



3-82
P3-3
Ex. 3-1
0.51



3-83
P3-3
Ex. 3-6
0.41



3-84
P3-3
Ex. 3-7
0.71



3-85
P3-4
Ex. 3-5
0.21



3-86
P3-4
Ex. 3-1
0.51



3-87
P3-4
Ex. 3-6
0.41



3-88
P3-4
Ex. 3-7
0.71



3-89
P3-5
Ex. 3-5
0.21



3-90
P3-6
Ex. 3-5
0.21



3-91
P3-7
Ex. 3-5
0.21



3-92
P3-8
Ex. 3-5
0.21



3-93
P3-9
Ex. 3-5
0.21



3-94
P3-10
Ex. 3-5
0.21



3-95
P3-10
Ex. 3-1
0.51



3-96
P3-10
Ex. 3-6
0.41



3-97
P3-10
Ex. 3-7
0.71



3-98
P3-11
Ex. 3-5
0.21



3-99
P3-12
Ex. 3-5
0.21



3-100
P3-12
Ex. 3-1
0.51



3-101
P3-12
Ex. 3-6
0.41



3-102
P3-12
Ex. 3-7
0.71

















TABLE 21-2







thermoplastic polymer composition












thermoplastic
stabilizer composition












Example
polymer
kind
amount (part)







3-103
P3-13
Ex. 3-5
0.21



3-104
P3-14
Ex. 3-5
0.21



3-105
P3-15
Ex. 3-5
0.21



3-106
P3-16
Ex. 3-5
0.21



3-107
P3-17
Ex. 3-5
0.21



3-108
P3-18
Ex. 3-5
0.21



3-109
P3-19
Ex. 3-5
0.21



3-110
P3-20
Ex. 3-5
0.21



3-111
P3-21
Ex. 3-5
0.21



3-112
P3-22
Ex. 3-5
0.21



3-113
P3-23
Ex. 3-5
0.21



3-114
P3-24
Ex. 3-5
0.21



3-115
P3-25
Ex. 3-5
0.21



3-116
P3-26
Ex. 3-5
0.21



3-117
P3-27
Ex. 3-5
0.21



3-118
P3-28
Ex. 3-5
0.21



3-119
P3-29
Ex. 3-5
0.21



3-120
P3-30
Ex. 3-5
0.21



3-121
P3-31
Ex. 3-5
0.21



3-122
P3-32
Ex. 3-5
0.21



3-123
P3-33
Ex. 3-5
0.21



3-124
P3-34
Ex. 3-5
0.21



3-125
P3-35
Ex. 3-5
0.21



3-126
P3-36
Ex. 3-5
0.21



3-127
P3-37
Ex. 3-5
0.21



3-128
P3-38
Ex. 3-5
0.21



3-129
P3-39
Ex. 3-5
0.21



3-130
P3-40
Ex. 3-5
0.21



3-131
P3-41
Ex. 3-5
0.21



3-132
P3-42
Ex. 3-5
0.21



3-133
P3-43
Ex. 3-5
0.21



3-134
P3-44
Ex. 3-5
0.21










Example 4-1
Production of Stabilizer Composition

Compound (3-1) (0.1 part) and trehalose (0.01 part) were mixed to produce a stabilizer composition.


Example 4-2
Production of Thermoplastic Polymer Composition

Polypropylene (manufactured by Sumitomo Chemical Company, Limited, 100 parts) and the stabilizer composition obtained in Example 4-1 were dry-blended, the obtained mixture was knead-extruded by a single screw extruder having a screw diameter of 30 mm (“VS30-28 type extruder” manufactured by TANABE PLASTICS MACHINERY CO., LTD.) at temperature 230° C. and screw rotation 50 rpm to give strands, and the strands were cut by a pelletizer to give a thermoplastic polymer composition as pellets.


Comparative Example 4-1

In the same manner as in Example 4-2 except that compound (3-1) (0.1 part) was used instead of the stabilizer composition obtained in Example 4-1, a thermoplastic polymer composition was obtained as pellets.


Experimental Example 4-1
Evaluation of Processing Stability

For evaluation of the processing stability during operation of extrusion processing, Dwell MFR tests were performed using the pellets of each thermoplastic polymer composition obtained in Example 4-2 and Comparative Example 4-1. The test was based on JIS K 7210, and 30 min Dwell MFR (g/10 min) were measured by a melt indexer (L217-E14011 manufactured by Technol Seven Co., Ltd.) under the conditions of temperature in a cylinder 270° C. and load 2.16 kg. The 30 min Dwell MFR was measured after 30 min dwell time, including the preheating time, of the pellets of the thermoplastic polymer composition in the cylinder. Since decomposition of polypropylene is accelerated by the heat of processing, in a thermoplastic polymer composition containing polypropylene, a smaller 30 min Dwell MFR means better processing stability thereof.


The composition of the stabilizer composition of Example 4-1 is shown in Table 22, and the compositions and 30 min Dwell MFRs of the thermoplastic polymer compositions of Example 4-2 and Comparative Example 4-1 are shown in Table 23. Furthermore, the inhibition rate of MFR increment was calculated by the following formula and using the 30 min Dwell MFR of Example 4-2 and the 30 min Dwell MFR of Comparative Example 4-1:





inhibition rate of MFR increment(%)=[(30 min Dwell MFR of Comparative Example 4-1)−(30 min Dwell MFR of Example 4-2)]×100/(30 min Dwell MFR of Comparative Example 4-1).


The results are shown in Table 23.









TABLE 22







stabilizer composition











compound (3-1)
trehalose
mass ratio of



(part)
(part)
compound (3-1):trehalose














Ex. 4-1
0.1
0.01
10:1
















TABLE 23







thermoplastic polymer composition














30 min





stabilizer
Dwell
inhibition



PP
composition
MFR
rate of MFR













(part)
kind
amount (part)
(g/10 min)
increment (%)
















Ex.
100
Ex.
0.11
11.5
28.1


4-2

4-1


Comp.
100
compound
0.1
16.0



Ex.

(3-1)


4-1





PP: polypropylene






Example 4-3-Example 4-6
Production of Stabilizer Composition

Compound (3-1), trehalose, compound (1-1) and compound (2-1) in the amounts described in Table 24 were mixed to respectively produce stabilizer compositions.


Example 4-7
Production of Thermoplastic Polymer Composition

A styrene-butadiene block copolymer (manufactured by DENKI KAGAKU KOGYO KABUSHIKI KAISHA, 100 parts) and the stabilizer composition (0.21 part) obtained in Example 4-3 were dry-blended, the obtained mixture was knead-extruded by a single screw extruder having a screw diameter of 30 mm (“VS30-28 type extruder” manufactured by TANABE PLASTICS MACHINERY CO., LTD.) at temperature 230° C. and screw rotation 50 rpm to give strands, and the strands were cut by a pelletizer to give a thermoplastic polymer composition as pellets.


Example 4-8
Production of Thermoplastic Polymer Composition

In the same manner as in Example 4-7 except that the stabilizer composition (0.51 part) obtained in Example 4-4 was used instead of the stabilizer composition obtained in Example 4-3, a thermoplastic polymer composition was obtained as pellets.


Example 4-9
Production of Thermoplastic Polymer Composition

In the same manner as in Example 4-7 except that the stabilizer composition (0.41 part) obtained in Example 4-5 was used instead of the stabilizer composition obtained in Example 4-3, a thermoplastic polymer composition was obtained as pellets.


Example 4-10
Production of Thermoplastic Polymer Composition

In the same manner as in Example 4-7 except that the stabilizer composition (0.71 part) obtained in Example 4-6 was used instead of the stabilizer composition obtained in Example 4-3, a thermoplastic polymer composition was obtained as pellets.


Comparative Example 4-2

In the same manner as in Example 4-7 except that only compound (3-1) (0.2 part) was used instead of the stabilizer composition obtained in Example 4-3, a thermoplastic polymer composition was obtained as pellets.


Experimental Example 4-2
Evaluation of Processing Stability

For evaluation of the processing stability during operation of extrusion processing, Dwell MFR tests were performed using the pellets of each thermoplastic polymer composition obtained in Example 4-7-Example 4-10 and Comparative Example 4-2. The test was based on JIS K 7210, and 0 min Dwell MFR (g/10 min) and 30 min Dwell MFR (g/10 min) were measured by a melt indexer (L217-E14011 manufactured by Technol Seven Co., Ltd.) under the conditions of temperature in a cylinder 270° C. and load 2.16 kg. The 0 min Dwell MFR was measured after 5 min preheating time after filling pellets of the thermoplastic polymer composition in the cylinder. The 30 min Dwell MFR was measured after 30 min dwell time, including the preheating time, of the pellets of the thermoplastic polymer composition in the cylinder. The MFR variation rate was calculated by the following formula and using the thus-measured 0 min Dwell MFR and 30 min Dwell MFR:





MFR variation rate (%)=absolute value of (30 min Dwell MFR−0 min Dwell MFR)×100/(0 min Dwell MFR)


The compositions of the stabilizer compositions of Example 4-3-Example 4-6 are shown in Table 24, and the compositions, 0 min Dwell MFRS, 30 min Dwell MFRS and MFR variation rates of the thermoplastic polymer compositions in Example 4-7-Example 4-10 and Comparative Example 4-2 are shown in Table 25. In a thermoplastic polymer composition containing a styrene-butadiene block copolymer, a smaller MFR variation rate means better processing stability thereof.









TABLE 24







stabilizer composition












compound

compound
compound



(3-1)
trehalose
(1-1)
(2-1)



amount
amount
amount
amount



(part)
(part)
(part)
(part)

















Ex. 4-3
0.2
0.01





Ex. 4-4
0.2
0.01
0.3




Ex. 4-5
0.2
0.01

0.2



Ex. 4-6
0.2
0.01
0.3
0.2

















TABLE 25







thermoplastic polymer composition












stabilizer
0 min
30 min
MFR



composition
Dwell
Dwell
variation














SBS

amount
MFR
MFR
rate



(part)
kind
(part)
(g/10 min)
(g/10 min)
(%)

















Ex.
100
Ex.
0.21
19.9
8.5
57.3


4-7

4-3


Ex.
100
Ex.
0.51
22.0
14.5
34.1


4-8

4-4


Ex.
100
Ex.
0.41
20.6
8.9
56.8


4-9

4-5


Ex.
100
Ex.
0.71
23.1
15.4
33.3


4-10

4-6


Comp.
100
compound
0.2
17.3
3.2
81.5


Ex.

(3-1)


4-2





SBS: styrene-butadiene block copolymer






Example 4-11-Example 4-139
Production of Stabilizer Composition

Stabilizer compositions are obtained by mixing the components described in Table 26-1-Table 26-4. Thermoplastic polymer compositions containing these stabilizer compositions are predicted to be superior in processing stability.









TABLE 26-1







stabilizer composition













compounds

compound
compound
compound



(3)-(7)
trehalose
(1)
(2)
(8)


















amount
amount

amount

amount

amount


Example
kind
(part)
(part)
kind
(part)
kind
(part)
kind
(part)



















4-11
(3-1)
0.01
0.2








4-12
(3-1)
0.05
0.15








4-13
(3-1)
0.1
0.1








4-14
(3-1)
0.15
0.05








4-15
(3-1)
0.2
0.001








4-16
(3-1)
0.2
0.0002








4-17
(4-1)
0.01
0.2








4-18
(4-1)
0.05
0.15








4-19
(4-1)
0.1
0.1








4-20
(4-1)
0.15
0.05








4-21
(4-1)
0.2
0.01








4-22
(4-1)
0.2
0.001








4-23
(4-1)
0.2
0.0002








4-24
(5-1)
0.01
0.2








4-25
(5-1)
0.05
0.15








4-26
(5-1)
0.1
0.1








4-27
(5-1)
0.15
0.05








4-28
(5-1)
0.2
0.01








4-29
(5-1)
0.2
0.001








4-30
(5-1)
0.2
0.0002








4-31
(5-2)
0.01
0.2








4-32
(5-2)
0.05
0.15








4-33
(5-2)
0.1
0.1








4-34
(5-2)
0.15
0.05








4-35
(5-2)
0.2
0.01








4-36
(5-2)
0.2
0.001








4-37
(5-2)
0.2
0.0002








4-38
(5-3)
0.01
0.2








4-39
(5-3)
0.05
0.15








4-40
(5-3)
0.1
0.1








4-41
(5-3)
0.15
0.05








4-42
(5-3)
0.2
0.01






















TABLE 26-2







stabilizer composition













compounds

compound
compound
compound



(3)-(7)
trehalose
(1)
(2)
(8)


















amount
amount

amount

amount

amount


Example
kind
(part)
(part)
kind
(part)
kind
(part)
kind
(part)



















4-43
(5-3)
0.2
0.001








4-44
(5-3)
0.2
0.0002








4-45
(6-1)
0.01
0.2








4-46
(6-1)
0.05
0.15








4-47
(6-1)
0.1
0.1








4-48
(6-1)
0.15
0.05








4-49
(6-1)
0.2
0.01








4-50
(6-1)
0.2
0.001








4-51
(6-1)
0.2
0.0002








4-52
(7-1)
0.01
0.2








4-53
(7-1)
0.05
0.15








4-54
(7-1)
0.1
0.1








4-55
(7-1)
0.15
0.05








4-56
(7-1)
0.2
0.01








4-57
(7-1)
0.2
0.001








4-58
(7-1)
0.2
0.0002








4-59
(3-1)
0.01
0.2
(1-1)
0.2






4-60
(3-1)
0.2
0.01
(1-1)
0.2






4-61
(3-1)
0.2
0.0002
(1-1)
0.2






4-62
(4-1)
0.01
0.2
(1-1)
0.2






4-63
(4-1)
0.2
0.01
(1-1)
0.2






4-64
(4-1)
0.2
0.0002
(1-1)
0.2






4-65
(5-1)
0.01
0.2
(1-1)
0.2






4-66
(5-1)
0.2
0.01
(1-1)
0.2






4-67
(5-2)
0.2
0.0002
(1-1)
0.2






4-68
(5-2)
0.01
0.2
(1-1)
0.2






4-69
(5-2)
0.2
0.01
(1-1)
0.2






4-70
(5-3)
0.2
0.0002
(1-1)
0.2






4-71
(6-1)
0.01
0.2
(1-1)
0.2






4-72
(6-1)
0.2
0.01
(1-1)
0.2






4-73
(6-1)
0.2
0.0002
(1-1)
0.2






4-74
(7-1)
0.01
0.2
(1-1)
0.2




















TABLE 26-3







stabilizer composition













compounds

compound
compound
compound



(3)-(7)
trehalose
(1)
(2)
(8)


















amount
amount

amount

amount

amount


Example
kind
(part)
(part)
kind
(part)
kind
(part)
kind
(part)



















4-75
(7-1)
0.2
0.01
(1-1)
0.2






4-76
(7-1)
0.2
0.0002
(1-1)
0.2






4-77
(3-1)
0.2
0.01
(1-2)
0.2






4-78
(4-1)
0.2
0.01
(1-2)
0.2






4-79
(5-1)
0.2
0.01
(1-2)
0.2






4-80
(5-2)
0.2
0.01
(1-2)
0.2






4-81
(5-3)
0.2
0.01
(1-2)
0.2






4-82
(6-1)
0.2
0.01
(1-2)
0.2






4-83
(7-1)
0.2
0.01
(1-2)
0.2






4-84
(3-1)
0.2
0.01


(2-1)
0.2




4-85
(4-1)
0.2
0.01


(2-1)
0.2




4-86
(5-1)
0.2
0.01


(2-1)
0.2




4-87
(5-2)
0.2
0.01


(2-1)
0.2




4-88
(5-3)
0.2
0.01


(2-1)
0.2




4-89
(6-1)
0.2
0.01


(2-1)
0.2




4-90
(7-1)
0.2
0.01


(2-1)
0.2




4-91
(3-1)
0.2
0.01


(2-2)
0.2




4-92
(4-1)
0.2
0.01


(2-2)
0.2




4-93
(5-1)
0.2
0.01


(2-2)
0.2




4-94
(5-2)
0.2
0.01


(2-2)
0.2




4-95
(5-3)
0.2
0.01


(2-2)
0.2




4-96
(6-1)
0.2
0.01


(2-2)
0.2




4-97
(7-1)
0.2
0.01


(2-2)
0.2




4-98
(3-1)
0.2
0.01


(2-3)
0.2




4-99
(4-1)
0.2
0.01


(2-3)
0.2




 4-100
(5-1)
0.2
0.01


(2-3)
0.2




 4-101
(5-2)
0.2
0.01


(2-3)
0.2




 4-102
(5-3)
0.2
0.01


(2-3)
0.2




 4-103
(6-1)
0.2
0.01


(2-3)
0.2




 4-104
(7-1)
0.2
0.01


(2-3)
0.2




 4-105
(3-1)
0.2
0.01




(8-1)
0.2


 4-106
(4-1)
0.2
0.01




(8-1)
0.2
















TABLE 26-4







stabilizer composition













compounds

compound
compound
compound



(3)-(7)
trehalose
(1)
(2)
(8)


















amount
amount

amount

amount

amount


Example
kind
(part)
(part)
kind
(part)
kind
(part)
kind
(part)





4-107
(5-1)
0.2
0.01




(8-1)
0.2


4-108
(5-2)
0.2
0.01




(8-1)
0.2


4-109
(5-3)
0.2
0.01




(8-1)
0.2


4-110
(6-1)
0.2
0.01




(8-1)
0.2


4-111
(7-1)
0.2
0.01




(8-1)
0.2


4-112
(3-1)
0.2
0.01
(1-1)
0.2
(2-1)
0.2




4-113
(4-1)
0.2
0.01
(1-1)
0.2
(2-1)
0.2




4-114
(5-1)
0.2
0.01
(1-1)
0.2
(2-1)
0.2




4-115
(5-2)
0.2
0.01
(1-1)
0.2
(2-1)
0.2




4-116
(5-3)
0.2
0.01
(1-1)
0.2
(2-1)
0.2




4-117
(6-1)
0.2
0.01
(1-1)
0.2
(2-1)
0.2




4-118
(7-1)
0.2
0.01
(1-1)
0.2
(2-1)
0.2




4-119
(3-1)
0.2
0.01
(1-1)
0.2


(8-1)
0.2


4-120
(4-1)
0.2
0.01
(1-1)
0.2


(8-1)
0.2


4-121
(5-1)
0.2
0.01
(1-1)
0.2


(8-1)
0.2


4-122
(5-2)
0.2
0.01
(1-1)
0.2


(8-1)
0.2


4-123
(5-3)
0.2
0.01
(1-1)
0.2


(8-1)
0.2


4-124
(6-1)
0.2
0.01
(1-1)
0.2


(8-1)
0.2


4-125
(7-1)
0.2
0.01
(1-1)
0.2


(8-1)
0.2


4-126
(3-1)
0.2
0.01


(2-1)
0.2
(8-1)
0.2


4-127
(4-1)
0.2
0.01


(2-1)
0.2
(8-1)
0.2


4-128
(5-1)
0.2
0.01


(2-1)
0.2
(8-1)
0.2


4-129
(5-2)
0.2
0.01


(2-1)
0.2
(8-1)
0.2


4-130
(5-3)
0.2
0.01


(2-1)
0.2
(8-1)
0.2


4-131
(6-1)
0.2
0.01


(2-1)
0.2
(8-1)
0.2


4-132
(7-1)
0.2
0.01


(2-1)
0.2
(8-1)
0.2


4-133
(3-1)
0.2
0.01
(1-1)
0.2
(2-1)
0.2
(8-1)
0.2


4-134
(4-1)
0.2
0.01
(1-1)
0.2
(2-1)
0.2
(8-1)
0.2


4-135
(5-1)
0.2
0.01
(1-1)
0.2
(2-1)
0.2
(8-1)
0.2


4-136
(5-2)
0.2
0.01
(1-1)
0.2
(2-1)
0.2
(8-1)
0.2


4-137
(5-3)
0.2
0.01
(1-1)
0.2
(2-1)
0.2
(8-1)
0.2


4-138
(6-1)
0.2
0.01
(1-1)
0.2
(2-1)
0.2
(8-1)
0.2


4-139
(7-1)
0.2
0.01
(1-1)
0.2
(2-1)
0.2
(8-1)
0.2









Example 4-140-Example 4-199
Production of Thermoplastic Polymer Composition

In the same manner as in Example 4-2 except that the thermoplastic polymers (100 parts) described in Table 27-1 and Table 27-2, and the stabilizer compositions in the kinds and amounts described in Table 27-1 and Table 27-2 are used, thermoplastic polymer compositions are obtained as pellets. The obtained thermoplastic polymer compositions are predicted to be superior in processing stability.


The meanings of the abbreviations of the thermoplastic polymers described in Table 27-1 and Table 27-2 are as follows.


P4-1: high density polyethylene (HDPE)


P4-2: low density polyethylene (LDPE)


P4-3: linear low density polyethylene (LLDPE)


P4-4: ethylene-vinyl alcohol copolymer (EVOH)


P4-5: ethylene-ethyl acrylate copolymer (EEA)


P4-6: ethylene-vinyl acetate copolymer (EVA)


P4-7: propylene-ethylene random copolymer


P4-8: propylene-α-olefin random copolymer


P4-9: propylene-ethylene-α-olefin copolymer


P4-10: polystyrene (PS)


P4-11: acrylonitrile-styrene copolymer (SAN)


P4-12: acrylonitrile-butadiene-styrene copolymer (ABS)


P4-13: special acrylic rubber-acrylonitrile-styrene copolymer


P4-14: acrylonitrile-chlorinated polyethylene-styrene copolymer (ACS)


P4-15: polybutadiene rubber (BR)


P4-16: styrene-butadiene copolymer (SB)


P4-17: styrene-butadiene block copolymer (SBS)


P4-18: chlorinated polyethylene (CPE)


P4-19: polychloroprene


P4-20: chlorinated rubber


P4-21: polyvinyl chloride) (PVC)


P4-22: poly(vinylidene chloride) (PVDC)


P4-23: methacrylate resin


P4-24: fluororesin


P4-25: polyacetal (POM)


P4-26: grafted poly(phenylene ether) resin


P4-27: poly(phenylene sulfide) resin (PPS)


P4-28: polyurethane (PU)


P4-29: polyamide (PA)


P4-30: poly(ethylene terephthalate) (PET)


P4-31: poly(butylene terephthalate) (PBT)


P4-32: poly(lactic acid) (PLA)


P4-33: polycarbonate (PC)


P4-34: polyacrylate


P4-35: polysulfone (PPSU)


P4-36: poly(ether ether ketone) (PEEK)


P4-37: poly(ether sulfone) (PES)


P4-38: aromatic polyester


P4-39: diallyl phthalate prepolymer


P4-40: silicone resin (SI)


P4-41: 1,2-polybutadiene


P4-42: polyisoprene


P4-43: butadiene-acrylonitrile copolymer (NBR)


P4-44: ethylene-methyl methacrylate copolymer (EMMA)









TABLE 27-1







thermoplastic polymer composition











thermoplastic
stabilizer composition













Example
polymer
kind
amount (part)
















4-140
P4-1
Ex. 4-1
0.11



4-141
P4-2
Ex. 4-1
0.11



4-142
P4-3
Ex. 4-1
0.11



4-143
P4-3
Ex. 4-3
0.21



4-144
P4-3
Ex. 4-4
0.51



4-145
P4-3
Ex. 4-5
0.41



4-146
P4-3
Ex. 4-6
0.71



4-147
P4-4
Ex. 4-1
0.11



4-148
P4-4
Ex. 4-5
0.21



4-149
P4-4
Ex. 4-6
0.51



4-150
P4-4
Ex. 4-7
0.41



4-151
P4-4
Ex. 4-8
0.71



4-152
P4-5
Ex. 4-1
0.11



4-153
P4-6
Ex. 4-1
0.11



4-154
P4-7
Ex. 4-1
0.11



4-155
P4-8
Ex. 4-1
0.11



4-156
P4-9
Ex. 4-1
0.11



4-157
P4-10
Ex. 4-1
0.11



4-158
P4-10
Ex. 4-3
0.21



4-159
P4-10
Ex. 4-4
0.51



4-160
P4-10
Ex. 4-5
0.41



4-161
P4-10
Ex. 4-6
0.71



4-162
P4-11
Ex. 4-1
0.11



4-163
P4-12
Ex. 4-1
0.11



4-164
P4-12
Ex. 4-3
0.21



4-165
P4-12
Ex. 4-4
0.51



4-166
P4-12
Ex. 4-5
0.41



4-167
P4-12
Ex. 4-6
0.71



4-168
P4-13
Ex. 4-1
0.11



4-169
P4-14
Ex. 4-1
0.11

















TABLE 27-2







thermoplastic polymer composition












thermoplastic
stabilizer composition












Example
polymer
kind
amount (part)







4-170
P4-15
Ex. 4-1
0.11



4-171
P4-16
Ex. 4-1
0.11



4-172
P4-17
Ex. 4-1
0.11



4-173
P4-18
Ex. 4-1
0.11



4-174
P4-19
Ex. 4-1
0.11



4-175
P4-20
Ex. 4-1
0.11



4-176
P4-21
Ex. 4-1
0.11



4-177
P4-22
Ex. 4-1
0.11



4-178
P4-23
Ex. 4-1
0.11



4-179
P4-24
Ex. 4-1
0.11



4-180
P4-25
Ex. 4-1
0.11



4-181
P4-26
Ex. 4-1
0.11



4-182
P4-27
Ex. 4-1
0.11



4-183
P4-28
Ex. 4-1
0.11



4-184
P4-29
Ex. 4-1
0.11



4-185
P4-30
Ex. 4-1
0.11



4-186
P4-31
Ex. 4-1
0.11



4-187
P4-32
Ex. 4-1
0.11



4-188
P4-33
Ex. 4-1
0.11



4-189
P4-34
Ex. 4-1
0.11



4-190
P4-35
Ex. 4-1
0.11



4-191
P4-36
Ex. 4-1
0.11



4-192
P4-37
Ex. 4-1
0.11



4-193
P4-38
Ex. 4-1
0.11



4-194
P4-39
Ex. 4-1
0.11



4-195
P4-40
Ex. 4-1
0.11



4-196
P4-41
Ex. 4-1
0.11



4-197
P4-42
Ex. 4-1
0.11



4-198
P4-43
Ex. 4-1
0.11



4-199
P4-44
Ex. 4-1
0.11










INDUSTRIAL APPLICABILITY

The thermoplastic polymer composition of the present invention containing compound (1), compound (2), at least one selected from the group consisting of compounds (3)-(7), or compound (8) and trehalose shows superior processing stability. The thermoplastic polymer composition of the present invention can be used for, for example, the production of electronic components, automobile parts, clock components, camera components, components of leisure goods and the like.

Claims
  • 1. A thermoplastic polymer composition comprising a compound represented by the formula (1):
  • 2. The thermoplastic polymer composition according to claim 1, wherein the total amount of the compound represented by the formula (1) and trehalose is 0.001-3 parts by weight relative to 100 parts by weight of the thermoplastic polymer.
  • 3. A stabilizer composition comprising a compound represented by the formula (1):
  • 4. The stabilizer composition according to claim 3, wherein the compound represented by the formula (1) is at least one selected from the group consisting of 2,4-di-t-pentyl-6-[1-(3,5-di-t-pentyl-2-hydroxyphenyl)ethyl]phenyl acrylate and 2-t-butyl-6-(3-t-butyl-2-hydroxy-5-methylbenzyl)-4-methylphenyl acrylate.
  • 5. The stabilizer composition according to claim 3 or 4, further comprising a compound represented by the formula (2):
  • 6. The stabilizer composition according to claim 3 or 4, further comprising at least one selected from the group consisting of the compounds represented by the formulas (3)-(7):
  • 7. The stabilizer composition according to claim 6, wherein at least one selected from the group consisting of the compounds represented by the formulas (3)-(7) is the compound represented by the formula (3).
  • 8. A thermoplastic polymer composition comprising a compound represented by the formula (8):
  • 9. The thermoplastic polymer composition according to claim 8, wherein the total amount of the compound represented by the foiniula (8) and trehalose is 0.001-3 parts by weight relative to 100 parts by weight of the thermoplastic polymer.
  • 10-25. (canceled)
Priority Claims (8)
Number Date Country Kind
2010-092968 Apr 2010 JP national
2010-092970 Apr 2010 JP national
2010-109955 May 2010 JP national
2010-147340 Jun 2010 JP national
2010-243440 Oct 2010 JP national
2010-243441 Oct 2010 JP national
2010-243442 Oct 2010 JP national
2010-243443 Oct 2010 JP national
PCT Information
Filing Document Filing Date Country Kind 371c Date
PCT/JP2011/059265 4/14/2011 WO 00 10/12/2012