| 摘要 |
PURPOSE:To provide the subject film having excellent impact resistance, keeping the transparency and gloss of the base resin, useful for packaging material, etc., and composed of a resin composition having prescribed physical properties such as flexural modulus and consisting of a PS resin, a specific block copolymer and an impact-resistant PS resin at specific ratios. CONSTITUTION:The objective film is composed of a resin having a flexural modulus of >=15,000kg/cm<2>, a falling weight impact strength of >=10kg.cm and a haze of <=40% and produced by adding (A) Whin to Whix pts.wt. of an impact resistant PS resin to 100 pts.wt. of a composition composed of (B) 30-55wt.% of a PS resin and (C) 70-45wt.% of a block copolymer consisting of 67-87wt.% of a vinyl aromatic hydrocarbon compound component and 33-13wt.% of a conjugated diene compound component. Whin and Whix are defined by formulas I and II [Ssb is the content (wt.%) of the vinyl aromatic hydrocarbon compound component in the component C; Bhi is the rubber content (wt.%) in the component A; Wps is the content (wt.%) of the component B in the composition composed of the components B and C]. |
