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US5276256A Flameproofed chlorine-and bromine-free molding composition 失效
防火氯和无溴成型组合物

Flameproofed chlorine-and bromine-free molding composition
Abstract:
A molding composition containing, based on the total weight of the composition:A) at least 40% by weight of at least one halogen-free polycarbonate;B) 5-40% by weight of at least one halogen-free graft copolymer composed of;1) 40-80% by weight of an elastomer with a glass transition temperature below 0.degree. C., which elastomer is composed of, at least 50% by weight of a diene or of an at least C.sub.4 -alkyl acrylate, 1-40% by weight of a halogen-free phosphorus compound of the formula ##STR1## 2) 20-60% by weight of a shell composed of, 40-98% by weight of styrene, .alpha.-alkylstyrene, nuclear-substituted styrene and/or C.sub.1 -C.sub.8 -alkyl (meth)acrylate, and 2-60% by weight of (meth)acrylonitrile and/or maleic anhydride;C) 5-40% by weight of a halogen-free thermoplastic copolymer composed of, 50-95% by weight of styrene, .alpha.-alkylstyrene, nuclear-substituted styrene and/or C.sub.1 -C.sub.8 -alkyl (meth)acrylates, and 5-50% by weight of (meth)acrylonitrile and/or maleic anhydride;D) 1-50% by weight of a halogen-free phosphorus compound of the formula ##STR2## E) up to 5% by weight of a polytetrafluoroethylene with a median particle size of 50-2000 nm.
Abstract(Chinese):

基于组合物的总重量含有A）至少40重量％的至少一种不含卤素的聚碳酸酯的模塑组合物; B）5-40重量％的至少一种无卤接枝共聚物，由 1）40-80重量％的玻璃化转变温度低于0℃的弹性体，该弹性体由至少50重量％的二烯或至少C4-烷基丙烯酸酯组成，1-40 重量％的式（*化学结构*）的无卤磷化合物2）20-60重量％的由40-98重量％的苯乙烯，（α） - 烷基苯乙烯，核 - 取代的苯乙烯和/或（甲基）丙烯酸C 1 -C 8烷基酯，和2-60重量％的（甲基）丙烯腈和/或马来酸酐; C）5-40重量％的由50-95重量％的苯乙烯，（α） - 烷基苯乙烯，核取代的苯乙烯和/或（甲基）丙烯酸C 1 -C 8烷基酯组成的无卤素的热塑性共聚物， 和5-50重量％的（甲基）丙烯腈和/或马来酸酐; D）1-50重量％的式（*化学结构*）的无卤素磷化合物E）至多5重量％的中值粒径为50-2000nm的聚四氟乙烯。

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