申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0102193A2
公开(公告)日:1984-03-07
The invention provides a synthetic resin stabilizer whose effective ingredient comprises a mixture of (I) at least one phenolic compound represented by the general formula:
wherein R, is hydrogen, an alkyl group having 1 to 4 carbon atoms or an acyl group having 1 to 5 carbon atoms, and n is an integer from 1 to 4, and (II) at least one sulfur-containing compound selected from compounds represented by the general formulae (11-1) and (11-2):
wherein R2 is an alkyl group having 4 to 20 carbon atoms, and
wherein R3 is an alkyl group having 3 to 18 carbon atoms, and R4 and R5 are selected independently from hydrogen and alkyl groups having 1 to 6 carbon atoms. The compounds (I) wherein n is 1 to 3 are novel. The stabilizer is useful for improving the stability to heat, light or oxygen of a wide range of synthetic resins, including polyolefins and particularly polypropylene.
本发明提供了一种合成树脂稳定剂,其有效成分包括(I)至少一种由通式表示的酚类化合物的混合物:
其中R,是氢、具有1至4个碳原子的烷基或具有1至5个碳原子的酰基,n是1至4的整数,和(II)至少一种选自通式(11-1)和(11-2)所代表的化合物的含硫化合物:
其中 R2 是具有 4 至 20 个碳原子的烷基,和
其中 R3 是具有 3 至 18 个碳原子的烷基,R4 和 R5 分别独立地选自氢和具有 1 至 6 个碳原子的烷基。其中 n 为 1 至 3 的化合物(I)是新型化合物。该稳定剂可用于提高各种合成树脂(包括聚烯烃,尤其是聚丙烯)对热、光或氧的稳定性。