BIAXIALLY DRAWN FILM OF STYRENIC RESIN COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a biaxially drawn film of a styrenic resin composition which is good in frictionally anti-static and sliding properties without performing coating and further suitable especially for pasting an envelope window unlikely to generate a roll dirt of a processing machine for the envelope. SOLUTION: The biaxially drawn film of a styrenic resin composition contains 99.9-99.0 vol.% of a polystyrenic resin including general purpose polystyrene or the like and 0.1-1 vol.% of particles of an aluminosilicate or the like wherein the maximum height of projections on the film surface is within a range of 2-12μm and there are 15-500 projections having the height of not less than 2μm per 1 mm<2> .