Patent ID: 6160052
Filing Date: 2000-12-12
Classification: C08F,C08K,C08L

Abstract:
A rubber-modified aromatic vinyl resin composition comprising mainly 80 to 96% by weight of an aromatic vinyl polymer and 20 to 4% by weight of a rubber-like polymer, wherein(a) the rubber-like polymer, which has substantially a salami structure, is dispersed in the aromatic vinyl polymer in the form of grains and the dispersed grains have a weight-average grain diameter falling in a range of 0.4 to 0.8 .mu.m,(b) the dispersed grains have 1.0 .mu.m or less of a 5% value and a 0.2 .mu.m or more of a 95% value in a cumulative grain diameter distribution on a weight basis,(c) a ratio of toluene-insoluble matters to a rubber component each of which are contained in said composition falls in a range of 1.0 to 2.5, and(d) 0.005 to 0.5% by weight of a silicone oil is contained in said composition.