Impact resistant thermoplastic resin composition

Details Impact resistant thermoplastic resin composition Impact resistant thermoplastic resin composition

C - Chemistry, Metallurgy

08

L

400/3038

C08L 51/00 (2006.01) C08L 77/00 (2006.01)

Patent

CA 2005539

ABSTRACT An impact resistant thermoplastic resin composition which comprises: 100 parts by weight of a resin mixture comprising from 20 to 80% by weight of a polyamide resin (A) and from 20 to 80% by weight of a graft copolymer (B) composed of from 45 to 60 parts by weight of a conjugated diene rubber and from 40 to 55 parts by weight of a monomer mixture comprising from 60 to 80% by weight of an aromatic vinyl monomer component and from 20 to 40% by weight of a vinyl cyanide monomer component (provided that the total amount of said monomer mixture is 100% by weight) wherein the average particle size of graft rubber is from 0.2 to 1.0 µm, the graft ratio is from 40 to 80% and the weight average molecular weight of a resinous component composed of said monomer components is from 220,000 to 450,000; from 0.01 to 40 parts by weight of a copolymer (C) comprising from 50 to 80% by weight of an aromatic vinyl monomer component, from 0.01 to 30% by weight of an unsaturated dicarboxylic anhydride monomer component, from 5 to 47% by weight of at least one monomer component selected from the group consisting of an N-substituted maleimide monomer component and a vinyl cyanide monomer component, and from 0 to 30% by weight of a methyl methacrylate monomer component (provided that the total amount of the monomer components is 100% by weight); and from 0 to 15 parts by weight of a copolymer (D) comprising from 60 to 90% by weight of an aromatic vinyl monomer component, from 0 to 40% by weight of a vinyl cyanide monomer component and from 0 to 40% by weight of a methyl methacrylate monomer component (provided that the total amount of the monomer components is 100% by weight).

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