| 摘要 |
PURPOSE:The title film excellent in environmental stress cracking resistance, blocking resistance, etc., obtained from a mixture comprising a styrene/butadiene block copolymer, two specified antioxidants, erucamide, an inorganic fiber, etc. CONSTITUTION:A styrene/butadiene block copolymer having a styrene content of 60-90wt%, a nonblock content <=15% and a number-average MW of 20,000-500,000 is mixed with 0.1-1.5wt% antioxidant selected from group A consisting of 2,2'-methylenebis(4-methyl-6-t-butylphenyl), 2,6-di-tert-butyl-4- methylphenol, etc., and 0.1-1.5wt% antioxidant selected from group B consisting of 4,4'-thiobis(3-methyl-6-t-butylphenol), 2-mercaptobenzimidazole, etc., 0.05-0.5wt% erucamide of an impirity content <=20wt%, 0.05-0.5wt% erucamide of an impurities content <=20wt%, 0.05-0.5% inorganic filler such as silica and/or 0.1-1.5% high-impact polystyrene.
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