| 摘要 |
PURPOSE:To obtain the title composition having excellent sliding properties and not causing a poor appearance of a molding, by mixing a rubber-modified PS resin with a dimethylsilicone oil of a specified vicsocity and a specified block copolymer having a specified resin structure. CONSTITUTION:100pts.wt. rubber-modified PS resin is mixed with 2.0-4.0pts.wt. dimethylsilicone oil of a viscosity at 25 deg.C of 5,000-15,000cSt and 5-30pts.wt., per 100pts.wt. dimethylsilicone oil, styrene/dimethylsiloxane block copolymer having a number-average MW >=50,000 and a styrene content of 20-30wt.% A rubber-modified PS resin composition having excellent sliding properties and not causing a poor appearance of a molding can be obtained. |
