申请人:Afton Chemical Corporation
公开号:EP2993220A1
公开(公告)日:2016-03-09
A lubricating oil comprising a major amount of a base oil and a minor amount of an additive package, and the additive package comprises at least one friction modifier selected from compounds of the formulae II, III and IV, and carboxylate salts thereof:
wherein R is a linear or branched, saturated, unsaturated, or partially saturated hydrocarbyl having about 8 to about 28 carbon atoms, n is 0 or 1; and the carboxylate salts have a cation that is an alkali metal, alkaline earth metal, group IIB metal, or ammonium cation. Methods of using the engine oil to improve thin film and/or boundary layer friction in an engine are also provided.
一种润滑油,包含大量基础油和少量复合添加剂,复合添加剂包含至少一种摩擦改进剂,该摩擦改进剂选自式 II、III 和 IV 的化合物及其羧酸盐:
其中 R 是具有约 8 至约 28 个碳原子的线性或支链饱和、不饱和或部分饱和烃基,n 是 0 或 1;羧酸盐具有碱金属、碱土金属、IIB 族金属或铵阳离子。此外,还提供了使用发动机油改善发动机薄膜和/或边界层摩擦的方法。