| abstract |
PURPOSE:The titled composition suitable as audio parts, etc., having improved light transmission properties, capable of being plated, obtained by blending a copolymer which is obtained by graft polymerization using rubber with specific particle diameters with a copolymer consisting of an aromatic vinyl and vinyl cyanide. CONSTITUTION:(A) A graft copolymer which is obtained by subjecting A1: 15-65pts.wt. synthetic rubber latex obtained from 50-100wt% 1,3-butadiene and 0-50wt% styrene, having >=60wt% gel content and 0.04-0.1mu average particle diameter and A2: 35-85pts.wt. monomer mixture consisting of 60-90wt% aromatic vinyl monomer and 10-40wt% vinyl cyanide monomer to graft polymerization and has 20-80% graft ratio is blended with (B) a copolymer consisting of B1: 60-90wt% aromatic vinyl monomer and B2: 10-40wt% vinyl cyanide monomer in such a way that the amount of the synthetic rubber is 5-30wt%. |