Carbamate additives for lubricating compositions
    158.
    发明授权
    Carbamate additives for lubricating compositions 失效
    用于润滑组合物的氨基甲酸酯添加剂

    公开(公告)号:US4997969A

    公开(公告)日:1991-03-05

    申请号:US283404

    申请日:1988-12-12

    Abstract: Compounds which improve extreme pressure and anti-wear properties of lubricating compositions are described. The compounds include the compounds of the following formula as well as statistical mixtures of those compounds: ##STR1## wherein R.sub.1 is hydrogen or hydrocarbyl; R.sub.2 is hydrocarbyl having at least 4 carbon atoms or together with R.sub.1 forms a heterocyclic radical,wherein R.sub.3, R.sub.4, R.sub.7 and R.sub.8 are each independently hydrogen or alkyl;wherein a is 0 or 1;wherein n is 1, 2 or 3;wherein X is oxygen or sulfur;wherein R.sub.5 is hydrogen or hydrocarbyl; andwhen n is 1, R.sub.6 is selected from the group consisting of ##STR2## and when n is 2, R.sub.6 is selected from the group consisting of ##STR3## and when n is 3, R.sub.6 is ##STR4## wherein R is independently an alkyl moiety, alkylene or alkylidene moiety containing 1 to 12 carbon atoms, R' is hydrogen or alkyl moiety, alkylene, alkylidene or carboxyl containing 1 to 60 carbon atoms, and R" is aryl or substituted aryl.

    Abstract translation: 描述了改善润滑组合物的极压和抗磨损性能的化合物。 化合物包括下式的化合物以及这些化合物的统计混合物:其中R 1是氢或烃基; R 2是具有至少4个碳原子的烃基或与R 1一起形成杂环基团,其中R 3,R 4,R 7和R 8各自独立地为氢或烷基; 其中a为0或1; 其中n为1,2或3; 其中X是氧或硫; 其中R5是氢或烃基; 当n为1时,R6选自,当n为2时,R6选自 + TR ,当n为3时,R6为 其中R独立地是烷基部分,含有1至12个碳原子的亚烷基或亚烷基部分,R'是氢或烷基部分,含有1至60个碳原子的亚烷基,亚烷基或羧基,R“是芳基或取代的芳基。

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