Lubricating oil compositions containing amine compounds having improved seal performance
申请人:Chevron Oronite Company LLC
公开号:US10435643B2
公开(公告)日:2019-10-08
Provided is an internal combustion engine lubricating oil composition which comprises a major amount of an oil of lubricating viscosity; one or more oil soluble or oil dispersible organic acid anhydrides, said anhydride comprising at least one hydrocarbyl or hydrocarbylene moiety having from about 10 to about 400 carbon atoms; and an oil soluble or oil dispersible secondary hydrocarbylamine compound, a tertiary hydrocarbylamine compound, or combinations thereof. Also provided is a method for maintaining and/or increasing fresh oil TBN of a lubricating oil composition while at the same time improving seal performance in an internal combustion engine.
本发明提供了一种内燃机润滑油组合物,它包含主要量的润滑粘度油;一种或多种油溶性或油分散性有机酸酐,所述酸酐包含至少一个具有约 10 至约 400 个碳原子的烃基或烃基;以及油溶性或油分散性仲烃基胺化合物、叔烃基胺化合物或其组合。此外,还提供了一种方法,用于保持和/或提高润滑油组合物的新油 TBN,同时改善内燃机的密封性能。