Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1984-01-30
1986-01-28
Ziegler, Jacob
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 73, C08L 5104, C08L 5304
Patent
active
045672334
ABSTRACT:
A heat and impact resistant resin composition which comprises from 10 to 90 parts by weight of a copolymer (A) comprising from 90 to 50% of residues of a vinyl aromatic compound, from 10 to 50% of residues of a maleimide compound and from 0 to 30% of residues of a vinyl compound copolymerizable therewith; from 0 to 50 parts by weight a copolymer (B) comprising from 90 to 40% of residues of a vinyl aromatic compound and from 10 to 60% of residues of an unsaturated nitrile compound; from 5 to 89 parts by weight of a graft copolymer (C) comprising from 25 to 70% by weight of particles of a rubber having a glass transition temperature of not higher than 0.degree. C. and an average particle size of from 0.1 to 0.5 .mu.m and from 75 to 30% by weight of a matrix resin comprising from 90 to 40% of residues of a vinyl aromatic compound and from 10 to 60% of residues of an unsaturated nitrile compound; and from 1 to 45 parts by weight of a graft copolymer (D) comprising from 2 to 17% by weight of particles of a rubber having a glass transition temperature of not higher than 0.degree. C. and an average particle size of from 0.7 to 4 .mu.m and from 98 to 83% by weight of a matrix resin comprising from 90 to 40% of residues of a vinyl aromatic compound and from 10 to 60% of residues of an unsaturated nitrile compound, wherein the amount of the graft copolymer (C) is from 97 to 50% by weight of the total amounts of the graft copolymers (C) and (D).
REFERENCES:
patent: 4381373 (1983-04-01), Ikuma
patent: 4404322 (1983-09-01), Saito et al.
Ikuma Sadao
Kokubo Takashi
Tomono Hiromi
Yamaguchi Kazuki
Mitsubishi Monsanto Chemical Company
Ziegler Jacob
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