Method of Reducing the Rate of Depletion of Basicity of a Lubricating Oil Composition in Use in an Engine
    5.
    发明申请
    Method of Reducing the Rate of Depletion of Basicity of a Lubricating Oil Composition in Use in an Engine 审中-公开
    减少发动机使用的润滑油组合物的碱度的消耗速率的方法

    公开(公告)号:US20140011725A1

    公开(公告)日:2014-01-09

    申请号:US13721110

    申请日:2012-12-20

    IPC分类号: C10M129/16

    摘要: Disclosed is a method of reducing the rate of depletion of basicity (as determined by ASTM D2896) of a lubricating oil composition in use in an engine. The lubricating oil composition includes at least one overbased alkali or alkaline earth metal detergent. The method comprises adding to the lubricating oil composition one or more compounds of Formula (I): wherein: x is 1 to 50, preferably 1 to 40, more preferably 1 to 30; R1 and R2 are H, hydrocarbyl groups having 1 to 12 carbon atoms, or hydrocarbyl groups having 1 to 12 carbon atoms and at least one heteroatom; R is a hydrocarbyl group having 9 to 100, preferably 9 to 70, most preferably, 9 to 50, carbon atoms; and n is 0 to 10, or alkaline earth metal salts thereof. The compounds of formula (I) are preferably methylene-bridged alkyl phenols or ethoxylated methylene-bridged alkyl phenols.

    摘要翻译: 公开了一种降低在发动机中使用的润滑油组合物的碱度消耗速率(由ASTM D2896确定)的方法。 润滑油组合物包含至少一种高碱性碱金属或碱土金属洗涤剂。 该方法包括向润滑油组合物中加入一种或多种式(I)的化合物:其中:x为1至50,优选1至40,更优选1至30; R 1和R 2是H,具有1至12个碳原子的烃基,或具有1至12个碳原子和至少一个杂原子的烃基; R是具有9至100,优选9至70,最优选9至50个碳原子的烃基; n为0〜10,或其碱土金属盐。 式(I)的化合物优选为亚甲基桥接的烷基酚或乙氧基化亚甲基桥烷基酚。