Patent ID: 6949607
Filing Date: 2005-09-27
Classification: C08F,C08L

Abstract:
1. A thermoplastic resin composition comprising: a rubber-reinforced thermoplastic resin (A) obtained by graft polymerizing a monomeric mixture (b) comprising an aromatic vinyl compound, a vinyl cyanide compound and optionally other copolymerizable monomeric compound(s) in the presence of a rubber-like polymer (a), and a copolymer (B) obtained by polymerizing an aromatic vinyl compound, a vinyl cyanide compound and optionally other copolymerizable monomeric compound(s), the content of the rubber-like polymer (a) in the rubber-reinforced thermoplastic resin (A) being 10 to 25% by weight, the content of the vinyl cyanide monomeric unit in the acetone soluble matter being 15 to 40% by weight, the ratio of weight-average molecular weight Mw to number-average molecular weight M the ratio of Z-average molecular weight M said copolymer (B) comprising a mixture of a copolymer (B1) having M said copolymers (B1) and (B2) are obtained by polymerizing an aromatic vinyl compound, a vinyl cyanide compound and optionally other copolymerizable monomeric compound(s).