Composition Containing A Block Copolymer And A Method Of Lubricating An Internal Combustion Engine
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    发明申请
    Composition Containing A Block Copolymer And A Method Of Lubricating An Internal Combustion Engine 审中-公开
    含有嵌段共聚物的组合物和内燃机润滑方法

    公开(公告)号:US20160362628A1

    公开(公告)日:2016-12-15

    申请号:US15249873

    申请日:2016-08-29

    IPC分类号: C10M149/04

    摘要: The invention provides a lubricating composition containing an oil of lubricating viscosity and a block copolymer. The block copolymer may contain (a) a hydrophobic first block having C1-30 alkyl (meth)acrylic units, wherein at least 50 wt % of the C1-30 alkyl (meth)acrylic units are C12-15 alkyl (meth)acrylic units, and up to 50 wt % of the C1-30 alkyl (meth)acrylic units are C16-20 alkyl (meth)acrylic units, with the proviso that alkyl groups of the C1-30 alkyl (meth)acrylic units have an average total number of carbon atoms of at least 8; and (b) a second block having (meth)acrylic units further having a heteroatom-containing group providing a polar group. The invention further relates to a method of lubricating an internal combustion engine by lubricating the engine with the lubricating composition. The invention further relates to the use of the block copolymer as an emulsifier and/or pour point depressant.

    摘要翻译: 本发明提供含有润滑粘度油和嵌段共聚物的润滑组合物。 嵌段共聚物可以含有(a)具有(甲基)丙烯酸C 1-30烷基酯单元的疏水性第一嵌段,其中至少50重量%的(甲基)丙烯酸C 1-30烷基酯是C 12-15烷基(甲基)丙烯酸单元 ,高达50重量%的(甲基)丙烯酸C 1-30烷基酯是C 16-20烷基(甲基)丙烯酸单元,条件是(甲基)丙烯酸C 1 -C 30烷基酯的烷基具有平均总计 碳原子数至少为8; 和(b)具有(甲基)丙烯酸单元的第二嵌段,其进一步具有提供极性基团的含杂原子的基团。 本发明还涉及通过用润滑组合物润滑发动机来润滑内燃机的方法。 本发明还涉及嵌段共聚物作为乳化剂和/或倾点下降剂的用途。