Disclosed are lubricating oil additives obtained by dissolving or reacting (A) a metal salt of a specific phosphorus compound which is insoluble or less soluble in lubricating oils in or with (B) an amine compound so as to be solved in the lubricating oils; a lubricating oil composition containing such an additive; a method of producing the additive and composition.
所公开的润滑油添加剂是通过将(A)不溶于或较少溶于润滑油的特定
磷化合物的
金属盐溶解于或与(B)胺化合物反应以溶解于润滑油而获得的;含有这种添加剂的润滑油组合物;生产添加剂和组合物的方法。