Claims
- 1. A molding composition comprising
- A) from 50 to 99%, based on the total weight of the molding composition of a polymer selected from the group consisting of
- A') a graft of a vinyl polymer selected from the group consisting of styrene, .alpha.-methylstyrene, .alpha.-chlorostyrene, p-chlorostyrene, 2,4-dichlorostyrene, p-methylstyrene, 3,4-dimethylstyrene, p-tert-butylstyrene, o- and p-divinylbenzene, p-methyl-.alpha.-methylstyrene, and p-chloro-.alpha.-methylstyrene grafted onto a rubber selected from the group consisting of natural rubber, epichlorohydrin rubbers, ethylene/vinyl acetate rubbers, chlorosulfonated polyethylene rubbers, silicone rubbers, polyether rubbers, hydrogenated diene rubbers, polyalkenamer rubbers, acrylate rubbers, ethylene/propylene rubbers, ethylene/propylene/diene rubbers, butyl rubbers, and fluorine rubbers and/or
- A' ) polycarbonates, polyesters, polyestercarbonates, polyetherketones, polyethersulfones, polysulfones, polyoxyalkylenes, polyarylene sulfides, polyphenylene ethers, and mixtures thereof and/or
- A' ') a rubber selected from the group consisting of natural rubber, epichlorohydrin rubbers, ethylene/vinyl acetate rubbers, chlorosulfonated polyethylene rubbers, silicone rubbers, polyether rubbers, hydrogenated diene rubbers, polyalkenamer rubbers, acrylate rubbers, ethylene/propylene rubbers, ethylene/propylene/diene rubbers, butyl rubbers, and fluorine rubbers without a vinyl monomer grafted onto the rubbers and
- B) as a dulling agent from 2 to 18% by weight, based on the total weight of the molding composition, of a blend of
- B.sub.1) a copolymer comprising polymerized units which are derived from a polymerizable carboxylic acid or derivatives thereof selected from the group consisting of carboxylic anhydrides, carboxamides, N-phenylcarboximides, and carboxylates and
- B.sub.2) a polyamide.
- 2. The molding composition of claim 1 further comprising from 0 to 40% by weight, based on the total weight of the molding composition, of a fibrous or particulate filler or of a mixture thereof.
- 3. The molding composition of claim 1 further comprising from 0 to 20% by weight, based on the total weight of the molding composition, of conventional additives and processing assistants.
- 4. The molding composition of claim 1 wherein component A comprises
- A1) the graft polymer A' dispersed in
- A2) a thermoplastic polymer.
- 5. The molding composition of claim 1 wherein component B.sub.1 is a copolymer of a vinyl aromatic monomer and/or ethylene with an ethylenically unsaturated carboxylic acid or derivatives thereof selected from the group consisting of carboxylic anhydrides, carboxamides, N-phenylcarboximides, and carboxylates.
- 6. The molding composition of claim 5 wherein the copolymer contains
- from 60 to 99% by weight of styrene,
- from 1 to 15% by weight of maleic anhydride, and
- from 0 to 39% by weight of methyl methacrylate and/or acrylonitrile
- or
- from 60 to 95% by weight of styrene,
- from 5 to 20% by weight of acrylic and/or methacrylic acid, and
- from 0 to 25% by weight of acrylonitrile, acrylates, and/or methacrylates.
- 7. A molding composition comprising
- A) a mixture of
- A.sub.1) 50% by weight of a graft rubber prepared in emulsion and having a grafting base comprising 98% by weight n-butyl acrylate and 2% by weight dihydrodicyclopentadienyl acrylate, grafted with a mixture of 75% by weight styrene and 25% by weight acrylonitrile (particle size d.sub.50 .mu.m, ratio of grafting base to graft=60:40) and
- A.sub.2) 50% by weight of a copolymer of 65% by weight styrene and 35% by weight acrylonitrile prepared in solution having a viscosity number of 80 ml/g, measured in 0.5% strength by weight solution in dimethylformamide (DMF) at 23.degree. C., and
- B) as a dulling agent, from 1 to 10% by weight, based on the total weight of the molding composition, a blend of
- B.sub.1) a reaction product of
- a styrene/maleic anhydride copolymer (weight ratio 58:42) with aniline, having 8-12 mol % of free MAA units and a molecular weight of 135,000 g/mol, and
- a styrene/maleic anhydride copolymer (weight ratio 50:50) having a molecular weight M.sub.w of 350,000 g/mol or
- a copolymer of 75% by weight styrene, 21% by weight acrylonitrile, and 4% by weight maleic anhydride, and
- B.sub.2) a copolyamide of 85% by weight poly-.epsilon.-caprolactam and 15% by weight of polyhexamethyleneadipamide, having a viscosity number of 195 ml/g, measured in 0.5% strength by weight solution in concentrated H.sub.2 SO.sub.4 at 25.degree. C. (DIN 53 727).
Priority Claims (1)
Number |
Date |
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19509514 |
Mar 1995 |
DEX |
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Parent Case Info
This application is a divisional of application Ser. No. 08/851,613, filed May 6, 1997, now abandoned, which is a continuation of application Ser. No. 08/596,889, filed Mar. 11, 1996, now abandoned.
US Referenced Citations (4)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0276512 |
Aug 1988 |
EPX |
54-154452 |
Dec 1979 |
JPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
851613 |
May 1997 |
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Continuations (1)
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Number |
Date |
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Parent |
596889 |
Mar 1996 |
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