| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject composition with its moldability, rigidity and impact strength compatible with one another, improved in sliding characteristics, in particular durability in its sliding, by incorporating a styrene-based resin with silicone powder. SOLUTION: This composition is obtained by incorporating (A) 100 pts.wt. of a styrene-based resin with (B) 0.0001-5 (pref. 0.005-3) pts.wt. of silicone powder; wherein the component A is pref. a polystyrene with a weight-average molecular weight of 10×10<4> to 60×10<4> , or the like; the component B is pref., for example, (i) silicone rubber powder obtained by hardening an oily silicone, (ii) silicone resin powder with three-dimensional structure obtained by hydrolysis and then condensation of silane, or (iii) silicone composite powder, a kind of silicone powder with composite structure obtained by coating the surface of silicone rubber microparticles with a silicone resin, and the volume-average particle size of the component B is pref. 0.1-25μm. |
