| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject composition useful as a film or a sheet imparted with a blocking resistance and a sliding property while maintaining a transparency by containing a styrene-based resin with a hydrophobicity-treated synthetic silicon dioxide. SOLUTION: This styrene-based resin composition is obtained by containing (A) a styrene-based resin having 200000-1000000 weight-average molecular weight (e.g.; a styrene-based resin composed of one kind or more kinds of monomers such as an alkylstyrene and anα-halostyrene; a copolymer of acrylonitrile, methylmethacrylate, etc., with a styrene-based monomer), (B) 10-10000 ppm hydrophobicity-treated synthetic silicon dioxide having 0.01-20μm mean particle diameter and <=50 dyne/cm critical surface tension, and further (C) 0.1-1.5 wt.% lubricant (e.g.; a liquid paraffine, a fatty acid ester, etc.). |
