Composition Containing a Block Copolymer and a Method of Lubricating an Internal Combustion Engine
    3.
    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润滑内燃机的方法

    公开(公告)号:US20110263470A1

    公开(公告)日:2011-10-27

    申请号:US13127114

    申请日:2009-11-03

    IPC分类号: C10M145/14

    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 ,最多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数 的碳原子数至少为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。

    Shape memory main-chain smectic-C elastomers
    10.
    发明申请
    Shape memory main-chain smectic-C elastomers 失效
    形状记忆主链近晶C弹性体

    公开(公告)号:US20050242325A1

    公开(公告)日:2005-11-03

    申请号:US11096021

    申请日:2005-03-31

    摘要: Shape memory main-chain smectic-C elastomers are described. The elastomers are prepared by hydrosilylation of a reaction mixture including a liquid crystalline diene, a crosslinking agent, and a bis(silyl hydride) compound. The elastomers exhibit shape-memory properties and spontaneously reversible shape changes. They are useful for fabrication of shape memory articles including, for example, implantable medical devices, contact lenses, reversible embossing media, and Fresnel lenses.

    摘要翻译: 描述了形状记忆主链近晶C弹性体。 弹性体通过包括液晶二烯,交联剂和双(甲硅烷基氢化物)化合物的反应混合物的氢化硅烷化来制备。 弹性体表现出形状记忆特性和自发可逆的形状变化。 它们可用于制造形状记忆物品,包括例如可植入医疗装置,隐形眼镜,可逆压花介质和菲涅尔透镜。