NITROGEN-FUNCTIONALIZED OLEFIN POLYMERS FOR ENGINE LUBRICANTS

    公开(公告)号:CA3008675A1

    公开(公告)日:2017-06-22

    申请号:CA3008675

    申请日:2016-11-17

    Applicant: LUBRIZOL CORP

    Abstract: A lubricant composition of an oil of lubricating viscosity, an ashless condensation reaction product of an olefin polymer, having a number average molecular weight of 2,000 to 70,000, comprising carboxylic acid or equivalent functionality grafted onto the polymer backbone, with a monoamine or a polyamine often having a single primary amino group; a succinimide dispersant; and an overbased metal detergent, in an amount such that the total base number of the lubricant composition is less than 6.5, exhibits good sludge prevention performance in a gasoline engine.

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