申请人:Ciba Specialty Chemicals Corporation
公开号:US05932642A1
公开(公告)日:1999-08-03
A description is given of novel compounds of formula I ##STR1## wherein R.sup.1, R.sub.2, R.sub.3, and R.sup.4 are hydrogen, alkyl, phenylalkyl, or alkoxy and where R.sub.5 and R.sub.6 are hydrogen or phenyl or together with the linking carbon atoms, are cycloalkenylene or cycloalkenylene which is interrupted by oxygen or sulfur. These compounds are useful as stabilizers for organic materials against oxidative, thermal or light-induced degradation.
给出了式子I的新化合物的描述:##STR1## 其中R.sup.1、R.sub.2、R.sub.3和R.sup.4是氢、烷基、苯基烷基或烷氧基,而R.sub.5和R.sub.6是氢或苯基,或者与连接碳原子一起,是被氧或硫中断的环烯烃烷基或环烯烃烷基。这些化合物可用作有机材料的稳定剂,以防止氧化、热或光诱导降解。