PURPOSE: To reduce the molding shrinkage and impart excellent flame retardancy by incorporating inorganic fibers, a halogenated flame retardant, antimony trioxide, a crosslinking aid and a specified thiophosphite each in a specified amount into a polyolefin resin. ;CONSTITUTION: This polyolefin resin composition is obtained by mixing 5-30wt.% rock wool and/or glass fibers, 5-25wt.% halogenated flame retardant (e.g. hexabromobenzene), antimony trioxide in an amount of 50-10wt.% based on the flame retardant, 0.5-5wt.% crosslinking aid (e.g. triallyl isocyanurate), 0.05-1wt.% thiophosphite of formula I, II, III or IV (wherein R1 is 6C or higher alkyl, cycloalkyl or aryl; R2 is SR'2 or R'2; R3 is SR'3 or R'3; R'2 and R'3 are each 6C or higher alkyl, cycloalkyl or aryl; X is (CH2)n, (CH2)n-O-(CH2)m, etc.; and (n) and (m) are each 2 to 6), and the balance of a polyolefin resin (100wt.% in total).;COPYRIGHT: (C)1994,JPO&Japio
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机译：目的：为减少模塑收缩并通过将无机纤维，卤化阻燃剂，三氧化二锑，交联助剂和指定量的亚硫代磷酸盐分别掺入聚烯烃树脂中来降低模塑收缩性，并赋予其优异的阻燃性。 ;组成：该聚烯烃树脂组合物是通过将5-30wt。％的岩棉和/或玻璃纤维，5-25wt。％的卤化阻燃剂（例如六溴苯），三氧化二锑按50-10wt。％的量混合而获得的阻燃剂，0.5-5wt。％的交联助剂（例如三烯丙基异氰脲酸酯），0.05-1wt。％的式I，II，III或IV的亚磷酸酯（其中R 1 是6C或更高的烷基，环烷基或芳基; R 2 是SR' 2 或R' 2 ; R 3 是SR' 3 或R' 3 ; R' 2 和R' 3 均为6C或更高的烷基，环烷基或芳基; X是（CH 2 ） n ，（CH 2 ） n -O-（CH 2 < / Sub>） m 等;并且（n）和（m）分别为2至6），其余为聚烯烃树脂（总量为100wt。％）。 C）1994，日本特许厅
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