Claims
- 1. A self-extinguishing polymeric composition comprising:
- (a) from 90 to 40 parts by weight of a thermoplastic polymer, or of a polymer endowed with elastomeric properties;
- (b) from 10 to 60 parts by weight of one or more composites constituted by ammonium polyphosphate of general formula (I):
- (NH.sub.4).sub.n+2 P.sub.n O.sub.3n+1 (I)
- wherein n stands for an integer comprised within the range of from 2 to 800, microencapsulated with 10-80% by weight of a resin obtained by:
- (A) reacting with aldehydes a mixture comprising:
- (1) from 0 to 50 parts by weight of one or more polyaminic derivatives selected from the group consisting of urea, ethyleneurea, thiourea, ethylenethiourea, propyleneurea, melamine, acetoguanamine, propionoguanamine, butyroguanamine, isobutyroguanamine, caprinoguanamine, succinoguanamine, benzoguanamine, meta methylbenzoguanamine, benzylguanamine, hydantoin, piperazine-2,5-dione and barbituric acid;
- (2) from 50 to 100 parts by weight of one or more derivatives of 2,4,6-triamino-1,3,5-triazine having the general formula (II): ##STR99## wherein: the radicals from R to R.sub.2, which may be the same, or different from each other, and which may have different meanings on each triazinic ring, are: H; C.sub.1 -C.sub.18 alkyl; C.sub.2 -C.sub.8 alkenyl; C.sub.6 -C.sub.16 cycloalkyl or alkylcycloalkyl, possibly substituted with a hydroxy or C.sub.1 -C.sub.4 hydroxyalkyl function; ##STR100## wherein: m=an integer comprised within the range of from 1 to 7;
- p=an integer comprised within the range of from 1 to 5;
- R.sub.4 =H; C.sub.1 -C.sub.4 alkyl; C.sub.2 -C.sub.6 alkenyl; --O--R.sub.6 wherein q is an integer comprised within the range of from 1 to 4 and R.sub.6 is H or C.sub.1 -C.sub.4 alkyl; C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl;
- the radicals R.sub.5, which may be the same, or different from each other, are: H, C.sub.1 -C.sub.8 alkyl; C.sub.2 -C.sub.6 alkenyl; C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl; C.sub.1 -C.sub.4 hydroxyalkyl; or the moiety: ##STR101## is replaced by a heterocyclic radical linked to the alkyl chain through the nitrogen atom, and possibly containing another heteroatom; or in the general formula (II) the moiety: ##STR102## is replaced by a heterocyclic radical linked to the triazinic ring through the nitrogen atom, and possibly containing another heteroatom; Z is a divalent radical falling within the scope of one of the following formulas: ##STR103## wherein the radicals R.sub.7, which may be the same or different from each other, are hydrogen or C.sub.1 -C.sub.4 alkyl; ##STR104## wherein r is an integer comprised within the range of from 2 to 14; R.sub.8 is hydrogen; C.sub.1 -C.sub.4 alkyl; C.sub.2 -C.sub.6 alkenyl; C.sub.1 -C.sub.4 hydroxyalkyl; ##STR105## wherein s is an integer comprised within the range of from 2 to 5 and t is an integer comprised within the range of from 1 to 3; ##STR106## wherein; X is a direct C--C bond; O; S; S--S; SO; SO.sub.2 ; NH; NHSO.sub.2 ; NHCO; N.dbd.N; CH.sub.2 ; R.sub.9 is hydrogen; hydroxy; C.sub.1 -C.sub.4 alkyl; C.sub.1 -C.sub.4 alkoxy; ##STR107## wherein A may be a saturated or unsaturated ring; ##STR108## wherein s has the above defined meaning; and (B) causing the resulting reaction product to turn into a resin by acidifying at a pH of from 1 to 5.
- 2. The self-extinguishing polymeric composition according to claim 1, in which the aldehyde is formaldehyde or a mixture containing formaldehyde and, up to 20% by mol, of another aldehyde having the general formula (III);
- R.sub.7 --CHO (III)
- wherein R.sub.7 is C.sub.1 -C.sub.8 alkyl; C.sub.2 -C.sub.8 alkenyl; C.sub.6 -C.sub.12 cycloalkyl; C.sub.6 -C.sub.12 aryl.
- 3. The self-extinguishing polymeric composition according to claim 2, in which the aldehyde is formaldehyde.
- 4. The self-extinguishing polymeric composition according to claim 1, in which the (b) component is constituted by ammonium polyphosphate of general formula (I) microencapsulated with a resin obtained by means of the polymerization with formaldehyde of a triazinic derivative of general formula (II).
- 5. The self-extinguishing polymeric composition according to claim 1, in which the (b) component is constituted by ammonium polyphosphate having the general formula (I) microencapsulated with a resin obtained by means of the polymerization with formaldehyde, of a mixture constituted by a triazinic derivative of general formula (II) and melamine.
- 6. The self-extinguishing polymeric composition according to claim 1, in which R and/or R.sub.1 in general formula (II) are equal to hydrogen.
- 7. The self-extinguishing polymeric composition according to claim 1, in which the moiety: ##STR109## in general formula (II) is replaced by a heterocyclic radical selected from:
- aziridine; pyrrolidine; piperidine; morpholine; thiomorpholine; piperazine; 4-methylpiperazine; 4-ethylpiperazine; 2-methylpiperazine; 2,5-dimethylpiperazine; 2,3,4,5-tetramethylpiperazine; 2,2,5,5-tetramethylpiperazine; 2-ethylpiperazine; and 2,5-diethylpiperazine.
- 8. The self-extinguishing polymeric composition according to claim 1, in which at least one of radicals from R to R.sub.2 in general formula (II) is replaced by a moiety:
- --CH.sub.2 --[--C.sub.m H.sub.2m --]--O--R.sub.4
- wherein:
- m is an integer comprised within the range of from 1 to 3 and
- R.sub.4 is hydrogen or C.sub.1 -C.sub.4 alkyl.
- 9. The self-extinguishing polymeric composition according to claim 1, in which the moiety: ##STR110## is replaced by a heterocyclic radical selected from: pyrrolidine; piperidine; morpholine; thiomorpholine; piperazine; 4-methylpiperazine; and 4-ethylpiperazine.
- 10. The self-extinguishing polymeric composition according to claim 1, in which the (a) polymer is selected from among polymers and copolymers of olefins having the general formula
- R--CH.dbd.CH.sub.2
- wherein R is a hydrogen atom or a C.sub.1 -C.sub.8 alkyl or aryl radical; acrylonitrile-butadiene-styrene (ABS) copolymers; styrene-acrylonitrile copolymers (SAN); polyurethane; poly(ethylene terephthalate); poly(butylene terephthalate); and polyamides.
- 11. The self-extinguishing polymeric composition according to claim 10, wherein the polymers and copolymers of olefins are selected from:
- 1. isotactic or prevailingly isotactic polypropylene;
- 2. HDPE, LLDPE, LDPE polyethylene;
- 3. crystalline propylene copolymers with minor proportions of ethylene and/or other alpha-olefins, such as 1-butene, 1-hexene, 1-octene, 4-methyl-1-pentene;
- 4. heterophasic compositions comprising: (A) a homopolymeric propylene fraction, or one of the copolymers as listed under above (3) point, and (B) a copolymeric fraction formed by elastomeric ethylene copolymers with an alpha-olefin, possibly containing minor proportions of a diene, wherein the alpha-olefin is preferably selected from propylene and 1-butene; and
- 5. elastomeric ethylene copolymers with alpha-olefins, possibly containing minor proportions of a diene.
- 12. A molded article of manufacture, obtained from a composition according to claim 1.
- 13. A self-extinguishing polymeric composition comprising:
- (a) from 90 to 40 parts by weight of a thermoplastic polymer, or of a polymer endowed with elastomeric properties; (b) from 10 to 60 parts by weight of one or more composites constituted by ammonium polyphosphate of general formula (I):
- (NH.sub.4).sub.n+2 P.sub.n O.sub.3n+1 (I)
- wherein n stands for an integer comprised within the range of from 2 to 800, microencapsulated with 10-80% by weight of a resin obtained by:
- (A') reacting with aldehydes a mixture comprising:
- (1) from 0 to 50 parts by weight of one or more polyaminic derivatives selected from the group consisting of urea, ethyleneurea, thiourea, ethylenethiourea, propyleneurea, melamine, acetoguanamine, propionoguanamine, butyroguanamine, isobutyroguanamine, caprinoguanamine, succinoguanamine, benzoguanamine, meta methylbenzoguanamine, benzylguanamine, hydantoin, piperazine-2,5-dione and barbituric acid;
- (2) from 50 to 100 parts by weight of one or more derivatives of 2,4,6-triamino-1,3,5-triazine having the general formula (XIII): ##STR111## wherein: the radicals from R to R.sub.2, which may be the same, or different from each other, and which may have different meanings on each triazinic ring, are: H; C.sub.1 -C.sub.18 alkyl; C.sub.2 -C.sub.8 alkenyl; C.sub.6 -C.sub.16 cycloalkyl or alkylcycloalkyl, possibly substituted with a hydroxy or C.sub.1 -C.sub.4 hydroxyalkyl function; ##STR112## wherein: m=an integer comprised within the range of from 1 to 7;
- p=an integer comprised within the range of from 1 to 5;
- R.sub.4 =H; C.sub.1 -C.sub.4 alkyl; C.sub.2 -C.sub.6 alkenyl; --O--R.sub.6 wherein q is an integer comprised within the range of from 1 to 4 and R.sub.6 is H or C.sub.1 -C.sub.4 alkyl; C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl;
- the radicals R.sub.5, which may be the same, or different from each other, are: H, C.sub.1 -C.sub.8 alkyl; C.sub.2 -C.sub.6 alkenyl; C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl; C.sub.1 -C.sub.4 hydroxyalkyl; or the moiety: ##STR113## is replaced by a heterocyclic radical linked to the alkyl chain through the nitrogen atom, and possibly containing another heteroatom; or in the general formula (XIII) the moiety: ##STR114## is replaced by a heterocyclic radical linked to the triazinic ring through the nitrogen atom, and possibly containing another heteroatom;
- R.sub.3 is hydrogen or: ##STR115## and its meaning may vary within each repeating unit; and wherein:
- R.sub.10 is hydrogen or C.sub.1 -C.sub.4 alkyl;
- c is an integer comprised within the range of from 1 to 5;
- the index s, which may be the same, or different from each other, is an integer comprised within the range of from 2 to 5; and
- (B') causing the resulting reaction product to turn into a resin by acidifying at a pH of from 1 to 5.
- 14. The self-extinguishing polymeric composition according to claim 13, in which the aldehyde is formaldehyde or a mixture containing formaldehyde and, up to 20% by mol, of another aldehyde having the general formula (III);
- R.sub.7 --CHO (III)
- wherein R.sub.7 is C.sub.1 -C.sub.8 alkyl; C.sub.2 -C.sub.8 alkenyl; C.sub.6 -C.sub.12 cycloalkyl; C.sub.6 -C.sub.12 aryl.
- 15. The self-extinguishing polymeric composition according to claim 14, in which the aldehyde is formaldehyde.
- 16. The self-extinguishing polymeric composition according to claim 13, in which the (b) component is constituted by ammonium polyphosphate of general formula (I) microencapsulated with a resin obtained by means of the polymerization with formaldehyde of a triazinic derivative of general formula (XIII).
- 17. The self-extinguishing polymeric composition according to claim 13, in which the (b) component is constituted by ammonium polyphosphate having the general formula (I) microencapsulated with a resin obtained by means of the polymerization with formaldehyde, of a mixture constituted by a triazinic derivative of general formula (XIII) and melamine.
- 18. The self-extinguishing polymeric composition according to claim 13, in which R and/or R.sub.1 in general formula (XIII) are equal to hydrogen.
- 19. The self-extinguishing polymeric composition according to claim 13, in which the moiety: ##STR116## in general formula (XIII) is replaced by a heterocyclic radical selected from:
- aziridine; pyrrolidine; piperidine; morpholine; thiomorpholine; piperazine; 4-methylpiperazine; 4-ethylpiperazine; 2-methylpiperazine; 2,5-dimethylpiperazine; 2,3,4,5-tetramethylpiperazine; 2,2,5,5-tetramethylpiperazine; 2-ethylpiperazine; and 2,5-diethylpiperazine.
- 20. The self-extinguishing polymeric composition according to claim 13, in which at least one of radicals from R to R.sub.2 in general formula (XIII) is replaced by a moiety:
- --CH.sub.2 --[--C.sub.m H.sub.2m --]--O--R.sub.4
- wherein:
- m is an integer comprised within the range of from 1 to 3 and
- R.sub.4 is hydrogen or C.sub.1 -C.sub.4 alkyl.
- 21. The self-extinguishing polymeric composition according to claim 13, in which the moiety: ##STR117## is replaced by a heterocyclic radical selected from: pyrrolidine; piperidine; morpholine; thiomorpholine; piperazine; 4-methylpiperazine; and 4-ethylpiperazine.
- 22. The self-extinguishing polymeric composition according to claim 13, in which the (a) polymer is selected from among polymers and copolymers of olefins having the general formula
- R--CH.dbd.CH.sub.2
- wherein R is a hydrogen atom or a C.sub.1 -C.sub.8 alkyl or aryl radical; acrylonitrile-butadiene-styrene (ABS) copolymers; styrene-acrylonitrile copolymers (SAN); polyurethane; poly(ethylene terephthalate); poly(butylene terephthalate); and polyamides.
- 23. The self-extinguishing polymeric composition according to claim 22, wherein the polymers and copolymers of olefins are selected from:
- 1. isotactic or prevailingly isotactic polypropylene;
- 2. HDPE, LLDPE, LDPE polyethylene;
- 3. crystalline propylene copolymers with minor proportions of ethylene and/or other alpha-olefins, such as 1-butene, 1-hexene, 1-octene, 4-methyl-1-pentene;
- 4. heterophasic compositions comprising: (A) a homopolymeric propylene fraction, or one of the copolymers as listed under above (3) point, and (B) a copolymeric fraction formed by elastomeric ethylene copolymers with an alpha-olefin, possibly containing minor proportions of a diene, wherein the alpha-olefin is preferably selected from propylene and 1-butene; and
- 5. elastomeric ethylene copolymers with alpha-olefins, possibly containing minor proportions of a diene.
- 24. A molded article of manufacture, obtained from a composition according to claim 13.
- 25. A self-extinguishing polymeric composition comprising:
- (a) from 90 to 40 parts by weight of a thermoplastic polymer, or of a polymer endowed with elastomeric properties;
- (b) from 10 to 60 parts by weight of one or more composites constituted by ammonium polyphosphate of general formula (I):
- (NH.sub.4).sub.n+2 P.sub.n O.sub.3n+1 (I)
- wherein n stands for an integer comprised within the range of from 2 to 800, microencapsulated with 10-80% by weight of a resin obtained by:
- (A") reacting with aldehydes a mixture comprising:
- (1) from 0 to 50 parts by weight of one or more polyaminic derivatives selected from the group consisting of urea, ethyleneurea, thiourea, ethylenethiourea, propyleneurea, melamine, acetoguanamine, propionoguanamine, butyroguanamine, isobutyroguanamine, caprinoguanamine, succinoguanamine, benzoguanamine, meta methylbenzoguanamine, benzylguanamine, hydantoin, piperazine-2,5-dione and barbituric acid;
- (2) from 50 to 100 parts by weight of one or more derivatives of 2,4,6-triamino-1,3,5-triazine having the general formula (XIV): ##STR118## wherein: the radicals from R to R.sub.2, which may be the same, or different from each other, and which may have different meanings on each triazinic ring, are: H; C.sub.1 -C.sub.18 alkyl; C.sub.2 -C.sub.8 alkenyl; C.sub.6 -C.sub.16 cycloalkyl or alkylcycloalkyl, possibly substituted with a hydroxy or C.sub.1 -C.sub.4 hydroxyalkyl function; ##STR119## wherein: m=an integer comprised within the range of from 1 to 7;
- p=an integer comprised within the range of from 1 to 5;
- R.sub.4 =H; C.sub.1 -C.sub.4 alkyl; C.sub.2 -C.sub.6 alkenyl; --O--R.sub.6 wherein q is an integer comprised within the range of from 1 to 4 and R.sub.6 is H or C.sub.1 -C.sub.4 alkyl; C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl;
- the radicals R.sub.5, which may be the same, or different from each other, are: H, C.sub.1 -C.sub.8 alkyl; C.sub.2 -C.sub.6 alkenyl; C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl; C.sub.1 -C.sub.4 hydroxyalkyl; or the moiety: ##STR120## is replaced by a heterocyclic radical linked to the alkyl chain through the nitrogen atom, and possibly containing another heteroatom; or in the general formula (XIV) the moiety: ##STR121## is replaced by a heterocyclic radical linked to the triazinic ring through the nitrogen atom, and possibly containing another heteroatom; R.sub.3 is hydrogen or: ##STR122## and its meaning may vary within each repeating unit; wherein:
- R.sub.10 is hydrogen or C.sub.1 -C.sub.4 alkyl;
- w is an integer comprised within the range of from 2 to 4;
- d is either 1 or 2; and
- (B") causing the resulting reaction product to turn into a resin by acidifying at a pH of from 1 to 5.
- 26. The self-extinguishing polymeric composition according to claim in which the aldehyde is formaldehyde or a mixture containing formaldehyde and, up to 20% by mol, of another aldehyde having the general formula (III);
- R.sub.7 --CHO (III)
- wherein R.sub.7 is C.sub.1 -C.sub.8 alkyl; C.sub.2 -C.sub.8 alkenyl; C.sub.6 -C.sub.12 cycloalkyl; C.sub.6 -C.sub.12 aryl.
- 27. The self-extinguishing polymeric composition according to claim 26, in which the aldehyde is formaldehyde.
- 28. The self-extinguishing polymeric composition according to claim 25, in which the (b) component is constituted by ammonium polyphosphate of general formula (I) microencapsulated with a resin obtained by means of the polymerization with formaldehyde of a triazinic derivative of general formula (XIV).
- 29. The self-extinguishing polymeric composition according to claim 25, in which the (b) component is constituted by ammonium polyphosphate having the general formula (I) microencapsulated with a resin obtained by means of the polymerization with formaldehyde, of a mixture constituted by a triazinic derivative of general formula (XIV) and melamine.
- 30. The self-extinguishing polymeric composition according to claim 25, in which R and/or R.sub.1 in general formula (XIV) are equal to hydrogen.
- 31. The self-extinguishing polymeric composition according to claim 25, in which the moiety: ##STR123## in general formula (XIV) is replaced by a heterocyclic radical selected from:
- aziridine; pyrrolidine; piperidine; morpholine; thiomorpholine; piperazine; 4-methylpiperazine; 4-ethylpiperazine; 2-methylpiperazine; 2,5-dimethylpiperazine; 2,3,4,5-tetramethylpiperazine; 2,2,5,5-tetramethylpiperazine; 2-ethylpiperazine; and 2,5-diethylpiperazine.
- 32. The self-extinguishing polymeric composition according to claim 25, in which at least one of radicals from R to R.sub.2 in general formula (XIV) is replaced by a moiety:
- --CH.sub.2 --[--C.sub.m H.sub.2m --]--O--R.sub.4
- wherein:
- m is an integer comprised within the range of from 1 to 3 and
- R.sub.4 is hydrogen or C.sub.1 -C.sub.4 alkyl.
- 33. The self-extinguishing polymeric composition according to claim 25, in which the moiety: ##STR124## is replaced by a heterocyclic radical selected from: pyrrolidine; piperidine; morpholine; thiomorpholine; piperazine; 4-methylpiperazine; and 4-ethylpiperazine.
- 34. The self-extinguishing polymeric composition according to claim 25, in which the (a) polymer is selected from among polymers and copolymers of olefins having the general formula
- R--CH.dbd.CH.sub.2
- wherein R is a hydrogen atom or a C.sub.1 -C.sub.8 alkyl or aryl radical; acrylonitrile-butadiene-styrene (ABS) copolymers; styrene-acrylonitrile copolymers (SAN); polyurethane; poly(ethylene terephthalate); poly(butylene terephthalate); and polyamides.
- 35. The self-extinguishing polymeric composition according to claim 34, wherein the polymers and copolymers of olefins are selected from:
- 1. isotactic or prevailingly isotactic polypropylene;
- 2. HDPE, LLDPE, LDPE polyethylene;
- 3. crystalline propylene copolymers with minor proportions of ethylene and/or other alpha-olefins, such as 1-butene, 1-hexene, 1-octene, 4-methyl-1-pentene;
- 4. heterophasic compositions comprising: (A) a homopolymeric propylene fraction, or one of the copolymers as listed under above (3) point, and (B) a copolymeric fraction formed by elastomeric ethylene copolymers with an alpha-olefin, possibly containing minor proportions of a diene, wherein the alpha-olefin is preferably selected from propylene and 1-butene; and
- 5. elastomeric ethylene copolymers with alpha-olefins, possibly containing minor proportions of a diene.
- 36. A molded article of manufacture, obtained from a composition according to claim 25.
Priority Claims (1)
Number |
Date |
Country |
Kind |
MI91A3043 |
Nov 1991 |
ITX |
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Parent Case Info
This application is a Continuation of application Ser. No. 07/976,454, filed on Nov. 13, 1992, now abandoned.
US Referenced Citations (29)
Foreign Referenced Citations (5)
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Aug 1980 |
EPX |
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Sep 1986 |
EPX |
0415371 |
Mar 1991 |
EPX |
0441134 |
Aug 1991 |
EPX |
1286661 |
Aug 1972 |
GBX |
Non-Patent Literature Citations (1)
Entry |
Encyclopedia of Polymer Science & Engineering, vol. 1, p. 759 (1985). |
Continuations (1)
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Number |
Date |
Country |
Parent |
976454 |
Nov 1992 |
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