| 摘要 |
PURPOSE:To obtain a polycarbonate resin composition having excellent chemical resistance, coating performance, moldability and processability and impact resistance, comprising a blend of polycarbonates having different molecular weights and a specific graft copolymer. CONSTITUTION:(A) 30-80 polycarbonate comprising A1: 30-90wt.% high-molecular weight polycarbonate having g45,000 weight-average molecular weight and A2: 70-10 pts.wt. low-molecular weight polycarbonate having 7,000-16,500 weight- average molecular weight in a ratio of the weight-average molecular weight of A2/the weight-average molecular weight of A1 of 0.03-0.37 is blended with (B) 15-60 pts.wt. graft copolymer obtained by subjecting an aromatic vinyl compound, a vinyl cyanide compound and optionally an unsaturated monomer copolymerizable with these compounds to graft copolymerization in the presence of a rubber-like hydrocarbon and (C) 0-40 pts.wt. copolymer obtained by copolymerizing an aromatic vinyl compound with a vinyl cyanide compound and an unsaturated monomer copolymerizable with these compounds. |
