| 摘要 |
PURPOSE:To obtain a thermoplastic resin composition improved in compatibility among components and mechanical strengths by mixing a styrene polymer with a thermoplastic polymer and/or a rubbery polymer other than said styrene polymer and a specified block or graft copolymer. CONSTITUTION:A mixture is obtained by mixing 5-95wt.% styrene polymer (a) mainly having a syndiotactic structure (e.g., PS) with 95-5wt.% thermoplastic resin other than component (a) (e.g., polyethylene terephthalate) and/or a rubbery polymer (b) (e.g., ethylene/propylene rubber). 100pts.wt. this mixture is mixed with 0.05-50pts.wt. block or graft copolymer (c) selected from among an A-B type block copolymer, an A-grafted B copolymer, a B-grafted A copolymer [wherein A is a styrene (co)polymer such as an atactic PS, an acrylonitrile/ styrene random copolymer or a styrene/maleic anhydride random copolymer, and B is a polymer such as a polyamide, polymethyl methacrylate or polyethylene terephthalate]. |
