Lubricating oil mannich base dispersants derived from heavy polyamine
    44.
    发明授权
    Lubricating oil mannich base dispersants derived from heavy polyamine 失效
    来自重多胺的润滑油甘露糖基分散剂

    公开(公告)号:US5565128A

    公开(公告)日:1996-10-15

    申请号:US322715

    申请日:1994-10-12

    Abstract: An oil-soluble lubricating oil additive useful as a dispersant, comprising Mannich Base condensates of an alkyl (hydrocarbon or polymer) substituted hydroxy aromatic compound with an aldehyde and a heavy polyamine. A heavy polyamine is a mixture of polyalkylenepolyamines comprising small amounts of lower polyamine oligomers such as tetraethylene pentamine and pentahexamine but primarily oligomers with 7 or more nitrogens, 2 or more primary amines per molecule, and more extensive branching than conventional polyamine mixtures.

    Abstract translation: 可用作分散剂的油溶性润滑油添加剂,其包含烷基(烃或聚合物)取代的羟基芳族化合物与醛和重多胺的曼尼希碱缩合物。 重多胺是包含少量低聚多元胺低聚物如四亚乙基五胺和五胺的聚亚烷基多胺的混合物,但主要是具有7个或更多个氮的低聚物,每个分子2个或更多个伯胺,以及比常规多胺混合物更广泛的分支。

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