Lubricating oil containing a polyamide pour point depressant
    2.
    发明授权
    Lubricating oil containing a polyamide pour point depressant 失效
    含有聚酰胺倾点降低剂的润滑油

    公开(公告)号:US3896038A

    公开(公告)日:1975-07-22

    申请号:US36717973

    申请日:1973-06-05

    Inventor: HARTLE ROBERT J

    Abstract: A lubricating oil composition having improved pour point and dispersancy characteristics comprises a major amount of a lubricating oil and a small amount of a polyamide of a mixture of secondary and tertiary monocarboxylic acids having 19 to 31 carbon atoms in the molecule and a polyalkylene polyamine containing about 2 to about 6 alkylene units, there being from 2 to 4 carbon atoms in each alkylene group, said polyamide containing about 1 to about 3 amine groups in addition to amide groups.

    Abstract translation: 具有改进的倾点和分散特性的润滑油组合物包含主要量的润滑油和少量分子中具有19至31个碳原子的仲和叔一元羧酸的混合物的聚酰胺和含有约 2至约6个亚烷基单元,每个亚烷基中有2至4个碳原子,所述聚酰胺除酰胺基之外还含有约1至约3个胺基。

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