| 摘要 |
PURPOSE: To obtain the subject composition having excellent light resistance and useful for electrical and electronic parts, etc., by incorporating a specific styrene resin with a brominated bisphenol-type epoxy polymer, antimony trioxide and a phosphoric acid ester. CONSTITUTION: The objective composition is produced by compounding (A) 100 pts.wt. of a styrene resin composed of (Al) 95-10 pts.wt. of a polymer produced by grafting (i) 5-90 pts.wt. of a mixture of 50-95wt.% of one or more monomers such as styrene andα-methylstyrene and 50-5wt.% of one or more monomers such as (meth)acrylonitrile and methyl methacrylate to (ii) 95-10 pts.wt. of a rubber having a glass transition temperature TG of <=10 deg.C and (A2) 5-90 pts.wt. of a polymer composed of (iii) 50-95wt.% of the component (i) and (iv) 50-5wt.% of the component (ii) with (B) 10-20 pts.wt. of a brominated bisphenol-type epoxy polymer expressed by formula I or formula II ((m) is an integer of 0-3; (n) is 1-10) and having a weight-average molecular weight of 1,000-10,000, (C) antimony trioxide having an average particle diameter of 0.5-2μm and (D) 0.5-5 pts.wt. of a phosphoric acid ester.
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