Polyisobutene and polyisobutene derivatives for use in lubricant compositions
    8.
    发明授权
    Polyisobutene and polyisobutene derivatives for use in lubricant compositions 失效
    用于润滑剂组合物的聚异丁烯和聚异丁烯衍生物

    公开(公告)号:US07071275B2

    公开(公告)日:2006-07-04

    申请号:US10495488

    申请日:2002-12-18

    IPC分类号: C08F10/00

    摘要: The invention describes polyisobutenyl derivatives of succinic acid obtainable by: i) reacting a polyisobutene which has a reactive end group content of at least 80% and whose molecular weight distribution is characterized by a maximum MP in the distribution curve in the range from 500 to 20 000 daltons and a ratio of weight average molecular weight to number average molecular weight MW/MN of below 1.4 with maleic acid or maleic anhydride; ii) reacting the polyisobutene-succinic acid derivative obtained in i) with at least one compound I which has at least one primary or secondary amino group and/or an OH group to form an amide or ester bond, and also a process for preparing them and their use as additives in lubricant compositions.

    摘要翻译: 本发明描述了琥珀酸的聚异丁烯基衍生物,其可通过以下方式获得:i)使具有至少80%的反应性末端基团含量的聚异丁烯反应,其分子量分布的特征在于分布中的最大M P 曲线范围为500至20,000道尔顿,重均分子量与数均分子量M的比值低于1.4,与马来酸或马来酸酐 酐; ii)使i)中得到的聚异丁烯 - 琥珀酸衍生物与至少一种具有至少一个伯或仲氨基和/或OH基团的化合物I反应形成酰胺键或酯键,以及制备它们的方法 以及它们作为润滑剂组合物中的添加剂的用途。