| abstract |
PURPOSE: To obtain a flame-retardant resin compsn. having excellent resistance to light and heat, by blending a halogenated compd., a halogenated bisphenol type polycarbonate oligomer and antimony trioxide with a polystyrene resin. n CONSTITUTION: A resin compsn. is obtd. by blending 4W30pts.wt. halogenated compd. (A) of formula I [wherein R 1 is a group of formula II (wherein l is 1W4); X is Br; a, b are each 2W5], 4W30pts.wt. halogenated bisphenol type polycarbonate oilgomer (B), 1W10pts.wt. antimony trioxide (C) and 0W3pts.wt. at least one member (D) selected from among compds. of formula III [wherein R 2 is a group of formula IV (wherein m is 1W18); X is H, SO 3 H], compds. of formula V [wherein R 3 is a group of formula VI (wherein n is 1W4); R 4 is a group of formula VII (wherein n is 0W4)], compds. of formula VIII [wherein R 5 is a group of formula IX (wherein q is 1W8)] and compds. of formula X [wherein R 6 is a group of formula XI (wherein r is 1W3); R 7 is H, CH 3 ; S is 2W18] with 100pts.wt. polystyrene resin in such a proportion that the combined quantity of components A and B is 7W36pts.wt. n COPYRIGHT: (C)1986,JPO&Japio |