申请人:THE LUBRIZOL CORPORATION
公开号:US11162048B2
公开(公告)日:2021-11-02
A lubricating composition includes an oil of lubricating viscosity, an N-alkyl naphthylamine, and at least one ashless antioxidant selected from a diarylamine antioxidant, a phenolic antioxidant, and mixtures thereof. The lubricating composition has a phosphorus content of less than 0.15 weight percent. The combination of the N-alkyl naphthylamine and ashless antioxidant provides a beneficial effect on the basicity of the composition without negatively impacting seals performance.
一种润滑组合物包括具有润滑粘度的油、N-烷基萘胺和至少一种无灰抗氧化剂,这些抗氧化剂选自二芳基胺抗氧化剂、酚类抗氧化剂及其混合物。润滑组合物的磷含量低于 0.15 重量百分比。N- 烷基萘胺和无灰抗氧化剂的组合可对组合物的碱性产生有利影响,而不会对密封性能产生负面影响。