A stabilizer combination for use in improving the resistance of olefin polymers to deterioration and physical properties on exposure to heat comprising A) an organic phosphonitrilic composition derived from a triphosphonitrilic halide and an hydroxy compound selected from alcohols containing one to about 20 carbon atoms and diols having the formula ##STR1## wherein X is a covalent bound or alkylene of 1 to about 12 carbon atoms, R.sub.1 and R.sub.2 are the same or different as hydrogen or alkyl having 1 to about 6 carbon atoms, and n is an integer from 1 to about 200; and B) from about 0.1 to about 25 parts by weight of an ortho-hindered phenolic primary antioxidant.
一种稳定剂组合物,用于改善烯烃聚合物对热暴露的恶化和物理性能的抵抗力,包括A)从三
磷氮杂环卤化物和选择自含有一到约20个碳原子的醇和具有公式##STR1##的二元醇的羟基化合物中衍生出的有机
磷氮化合物组成,其中X是1到约12个碳原子的共价键或烷基,R.sub.1和R.sub.2是相同或不同的氢或具有1到约6个碳原子的烷基,n是1到约200的整数;和B)约0.1到约25重量份的邻位受阻
酚类一级
抗氧化剂。