| 摘要 |
PURPOSE:The titled composition, obtained by blending a specific organopolysiloxane based graft copolymer and, as necessary, a vinyl based polymer in specific amounts with a polycarbonate, and having improved chemical, weather, heat and impact resistance. CONSTITUTION:A polycarbonate resin composition obtained by blending (A) 10-90wt% polycarbonate resin with (B) a polyorganosiloxane based graft copolymer prepared by graft polymerizing (B2) 95-10wt% vinyl based monomer, e.g. styrene, onto (B1) 5-90wt% polyorganosiloxane rubber having 3-15 swelling degree measured using toluene solvent and any of structural units, expressed by formulas I-II (R<1> is methyl, etc.; R<2> is H, etc.; n is 0-2; p is 1-6) and copolymerized with a graft crosslinking agent and, as necessary, (C) 90-10wt% vinyl based polymer obtained by polymerizing (C1) 70-100wt% one or more monomers selected from aromatic vinyl based monomers and (C2) 0-30wt% copolymerizable vinyl based monomer. The component (B1) is blended to give 0.5-60wt% amount thereof. |
