申请人:Shell Internationale Research Maatschappij B.V.
公开号:EP2055763A1
公开(公告)日:2009-05-06
The present invention provides a lubricating oil composition comprising:
(a) a base oil;
(b) one or more diphenylamine (DPA) compounds having formula (I),
wherein each R is independently an alkyl group having from 1 to 16 carbon atoms, preferably from 3 to 14 carbon atoms, more preferably from 4 to 12 carbon atoms;
(c) one or more phenyl-α-naphthylamine (PANA) compounds having formula (II):
wherein R1 is selected from the group consisting of H, an alkyl group containing from 3 to 15 carbon atoms and an alkylaryl group containing from 7 to 12 carbon atoms; and
(d) one or more substituted diphenylamine derivatives having formula (III)
wherein R2 and R3 are each independently an optionally substituted aryl or alkylaryl group, the one or more substituted diphenylamine derivatives having a number average molecular weight of from 321 to 700.
本发明提供了一种润滑油组合物,包括
(a) 基础油
(b) 一种或多种具有式 (I) 的二苯胺 (DPA) 化合物、
其中每个 R 独立地是具有 1 至 16 个碳原子的烷基,优选 3 至 14 个碳原子,更优选 4 至 12 个碳原子;
(c) 一种或多种具有式(II)的苯基-α-萘胺(PANA)化合物:
其中 R1 选自由 H、含 3 至 15 个碳原子的烷基和含 7 至 12 个碳原子的烷芳基组成的组;以及
(d) 一种或多种取代的二苯胺衍生物,其式为(III)
其中 R2 和 R3 各自独立地为任选取代的芳基或烷基芳基,一种或多种取代的二苯胺衍生物的平均分子量为 321 至 700。