| 摘要 |
PURPOSE:To provide a styrene resin composition having improved impact resistance, by blending rubber-modified styrene resin with a specified random segment copolymer consisting of conjugated diolefin and vinyl substd. arm. cpd. CONSTITUTION:100 Parts by weight of rubber-modified styrene resin contg. from 2-35% by weight of conjugated diolefin component is blended with from 1-50 parts of random segment copolymer (having molecular weight pref. in the range 10,000-100,000) consisting of segment A composed of random copolymer wherein the weight ratio of (a) conjugated diolefin (1,3-butadiene, isoprene, etc.) to (b) vinyl substd. arm. cpd. (styrene deriv., vinylnaphthalene, etc.) is 30/70-5/95, and segment B composed of random copolymer wherein the weight ratio of (a) to (b) is 100/0-75/25. |
