Dispersant additive
    2.
    发明授权
    Dispersant additive 失效
    分散剂

    公开(公告)号:US06255258B1

    公开(公告)日:2001-07-03

    申请号:US09432740

    申请日:1999-11-02

    IPC分类号: C10M13316

    摘要: An oil-soluble dispersant obtainable by reacting the reaction product of a polyamine and a long-chain hydrocarbyl-substituted dicarboxylic acid, anhydride or ester thereof with a polyanhydride, characterized in that the dispersant restricts the viscosity increase in an oil to below 8 Pa.s in the Haake rheology test defined herein at 2% w/w active matter and a shear rate of 0.26 s−1 Pa.s, and lubricating oil and fuel compositions and additive concentrates containing such a dispersant.

    摘要翻译: 通过使多胺和长链烃基取代的二羧酸的反应产物,其酸酐或其酯与聚酐反应得到的油溶性分散剂,其特征在于分散剂将油中的粘度增加剂限制在低于8Pa。 在2%w / w活性物质和剪切速率为0.26s-1Pa.s的本文定义的Haake流变学试验中,以及含有这种分散剂的润滑油和燃料组合物和添加剂浓缩物。