申请人:Ciba-Geigy Corporation
公开号:US04560799A1
公开(公告)日:1985-12-24
Organic materials are stabilized against thermal, oxidative and photo-degradation by incorporating therein an effective amount of a compound of formula I ##STR1## wherein T.sub.1 T.sub.2 independently are alkyl, cycloalkyl, phenyl, aralkyl, T.sub.2 may also be hydrogen, T is alkyl, phenyl or substituted hydroxyphenyl, E is a direct bond, alkylene, cycloalkylene, phenylene or --CH.sub.2 CH(ST)CH.sub.2 --, T.sub.3 and T.sub.4 are independently hydrogen, alkyl or cycloalkyl; or together are alkylene, T.sub.5 is hydrogen, alkyl or phenyl, n is 1 or 2, t is 0 or 1, and t is 2-n. Polyolefins, ABS resins, natural and synthetic rubbers and polyesters are particularly well stabilized by the compounds of formula I.
有机材料通过在其中添加一定量的化合物I的方式稳定化,以抵抗热、氧化和光降解。其中化合物I的结构如下:其中T.sub.1和T.sub.2独立地是烷基、环烷基、苯基、芳基烷基,T.sub.2也可以是氢,T是烷基、苯基或取代羟基苯基,E是直链键、烷基链、环烷基链、苯基链或--CH.sub.2 CH(ST)CH.sub.2 --,T.sub.3和T.sub.4独立地是氢、烷基或环烷基;或者一起是烷基,T.sub.5是氢、烷基或苯基,n为1或2,t为0或1,且t为2-n。聚烯烃、ABS树脂、天然和合成橡胶以及聚酯特别适合使用化合物I进行稳定。