申请人：CIBA-GEIGY AG
公开号：EP0538195A2
公开（公告）日：1993-04-21
Compositions are described which comprise
(a) a lubricant, subject to oxidative or thermal degradation, and
(b) at least one compound of formula I
wherein
R⁵, R⁶, R⁷ and R⁸ are independently hydrogen, alkenyl of 3 to 18 carbon atoms, aralkyl of 7 to 15 carbon atoms, aryl of 6 to 10 carbon atoms or said aryl substituted by one to three substituents selected from the group consisting of alkyl of 1 to 20 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, aralkyl of 7 to 15 carbon atoms, -CN, -NO⁶, halogen, -ORψ, -NR¼R½, -SR¾, -COOR| and -CONR⁵⁴R⁵⁵ where Rψ, R¼, R½, R¾, R|, R⁵⁴ and R⁵⁵ are independently hydrogen, alkyl of 1 to 20 carbon atoms, alkenyl of 3 to 18 carbon atoms, aryl of 6 to 10 carbon atoms, cycloalkyl of 5 to 12 carbon atoms or aralkyl of 7 to 15 carbon atoms.
Some of the compounds of formula one are novel.
描述了以下组成的组合物：
(a) 一种润滑剂，容易受到氧化或热降解，和
(b) 至少一个公式 I 的化合物
其中
R⁵, R⁶, R⁷ 和 R⁸ 分别独立为氢，3至18碳原子的烯基，7至15碳原子的芳基烷基，6至10碳原子的芳基或所述芳基被1至3个选自以下组的取代基所取代：1至20碳原子的烷基，5至12碳原子的环烷基，7至15碳原子的芳基烷基，-CN, -NO⁶, 卤素，-ORψ, -NR¼R½, -SR¾, -COOR| 和 -CONR⁵⁴R⁵⁵，其中 Rψ, R¼, R½, R¾, R|, R⁵⁴ 和 R⁵⁵ 分别独立为氢，1至20碳原子的烷基，3至18碳原子的烯基，6至10碳原子的芳基，5至12碳原子的环烷基或7至15碳原子的芳基烷基。
公式 I 中的某些化合物是新颖的。
