A stabilizer for synthetic resins, e.g. polyolefins such as polypropylene, of which the effective ingredient is a mixture of 1,3,5-tris2-[3-13-t-butyl-4-hydroxy-5-methylphenyl)-propionyloxy]ethyl}isocyanuric acid (I) and at least one sulfur-containing compound (II) selected from compounds represented by the general formulae (II-I) and (11-2):
wherein R1 is an alkyl group having 4 to 20 carbon atoms, and
wherein R2 is an alkyl group having 3 to 18 carbon atoms, and R3 and R4 are selected independently from hydrogen and alkyl groups having 1 to 6 carbon atoms. Preferably the weight ratio (I):(II) is from 1:0.5 to 1:15.
一种用于合成
树脂,例如聚
丙烯等聚烯烃的稳定剂,其有效成分为 1,3,5-三2-[3-13-叔丁基-
4-羟基-5-甲基苯基)-丙酰氧基]乙基}异
氰尿酸(I)和至少一种选自通式(II-I)和(11-2)所代表化合物的
含硫化合物(II)的混合物:
其中 R1 是具有 4 至 20 个碳原子的烷基,和
其中 R2 是具有 3 至 18 个碳原子的烷基,R3 和 R4 分别独立地选自氢和具有 1 至 6 个碳原子的烷基。(I):(II)的重量比最好为 1:0.5 至 1:15。