申请人:CIBA-GEIGY AG
公开号:EP0255478A1
公开(公告)日:1988-02-03
Tris(substituted hydroxyphenyl)trithioorthoesters of the formula I
wherein
R¹ and R² are independently hydrogen, C₁-C₁₈alkyl, C₅-C₁₂cycloalkyl, phenyl, phenyl substituted by C₁-C₁₈alkyl, C₇-C₉aralkyl which is unsubstituted or substituted by C₁-C₁₈alkyl; and
A is hydrogen, C₁-C₃₀alkyl, C₅-C₁₂cycloalkyl, aryl, aryl substituted by C₁-C₁₈alkyl, C₇-C₉aralkyl which is unsubstituted or substituted by C₁-C₁₂alkyl are useful as stabilizers for organic polymers and lubricating oils to counteract the degradative effects of heat, light and air.
式 I 的三(取代的羟基苯基)三硫代orthoesters
其中
R¹ 和 R² 独立地为氢、C₁-C₁₈烷基、C₅-C₁₂环烷基、苯基、被 C₁-C₁₈ 烷基取代的苯基、未被 C₁-C₁₈ 取代或被 C₁-C₁₈ 取代的 C₇-C₉aralkyl ;以及
A 是氢、C₁-C₃₀烷基、C₅-C₁₂环烷基、芳基、被 C₁-C₁₈ 烷基取代的芳基、C₇-C₉未取代或被 C₁-C₁₂烷基取代的芳基可用作有机聚合物和润滑油的稳定剂,以抵消热、光和空气的降解作用。