Method for reducing engine wear with lubricants comprising 2-hydroxyalkylamide friction modifying/anti-wear compositions
申请人:Chemtura Corporation
公开号:US10072230B2
公开(公告)日:2018-09-11
Lubricant compositions comprising an improved ashless organic friction modifier additive have been found to be capable of reducing both friction and wear. It has been found that mixtures of fatty-alkanolamides containing secondary hydroxyls on the amino alkyl substituent, such as amide mixtures prepared from bis(2-hydroxypropyl)amine and mixtures of at least two different C8-24 fatty acids, provide better oil solubility and friction reduction than alkanolamides with primary, hydroxyl functionality, such as amide mixtures prepared from di-ethanol)amine.
研究发现,包含改进型无灰有机摩擦改进剂添加剂的润滑剂组合物能够减少摩擦和磨损。研究发现,在氨基烷基取代基上含有仲羟基的脂肪烷醇酰胺混合物(例如由双(2-羟基丙基)胺和至少两种不同的 C8-24 脂肪酸混合物制备的酰胺混合物)比具有伯羟基官能团的烷醇酰胺(例如由二乙醇胺制备的酰胺混合物)具有更好的油溶性和摩擦降低性能。