Lubricating oil compositions with improved friction properties
    267.
    发明申请
    Lubricating oil compositions with improved friction properties 审中-公开
    具有改善摩擦性能的润滑油组合物

    公开(公告)号:US20030171223A1

    公开(公告)日:2003-09-11

    申请号:US10354594

    申请日:2003-01-30

    Abstract: The present invention concerns friction reducers for use in lubricating oil compositions which comprise certain groups of aromatic compounds, esters, narrow mixtures of base stocks, and/or amorphous polymers such as amorphous olefin copolymers. These compositions can provide substantial reductions in the coefficient of friction and fuel economy improving benefits when admixed to lubricating oils without deleterious effects such as instability, undesirable high viscosities and deposits. In one aspect of the invention, pentaerythritol esters and optionally triol esters are added to lubricating oil compositions to provide reduced friction and improved fuel economy. In a second aspect of the invention, similar results are obtained by adding hydrocarbyl aromatics to a lubricating oil composition containing one or more of Groups II and III base stock. In a third aspect, the invention concerns a lubricating oil composition comprising an amorphous olefin copolymer and one or more of Groups II and III base stocks. In one embodiment, the third aspect also includes one or more of hydrocarbyl aromatics and polyol esters as part of the composition. In a forth aspect, moderate concentrations of hydrocarbyl aromatics are used in a lubricating oil composition comprising paraffinic base oil stocks and preferably a borated polyisobutenyl succinimide ashless dispersant.

    Abstract translation: 本发明涉及用于润滑油组合物中的摩擦减少剂,其包含某些芳族化合物,酯,基础油料的混合物和/或无定形聚合物如无定形烯烃共聚物。 当混合到润滑油上时,这些组合物可以显着降低摩擦系数和燃料经济性,而不会产生有害影响,例如不稳定性,不希望的高粘度和沉积物。 在本发明的一个方面,将季戊四醇酯和任选的三醇酯加入到润滑油组合物中以提供降低的摩擦和改善的燃料经济性。 在本发明的第二方面,通过将烃基芳族化合物加入到含有II和III族基础油中的一种或多种的润滑油组合物中可获得类似的结果。 在第三方面,本发明涉及包含无定形烯烃共聚物和II和III族基料中的一种或多种的润滑油组合物。 在一个实施方案中,第三方面还包括作为组合物的一部分的一种或多种烃基芳族化合物和多元醇酯。 在第四方面,中等浓度的烃基芳族化合物用于包含石蜡基油原料,优选硼酸化的聚异丁烯基琥珀酰亚胺无灰分散剂的润滑油组合物中。

    Lubricant composition comprising alkali metal borate and polyalkylene succinic anhydride
    269.
    发明申请
    Lubricant composition comprising alkali metal borate and polyalkylene succinic anhydride 审中-公开
    包含碱金属硼酸盐和聚亚烷基琥珀酸酐的润滑剂组合物

    公开(公告)号:US20020147115A1

    公开(公告)日:2002-10-10

    申请号:US09967073

    申请日:2001-09-28

    Abstract: Disclosed are lubricant compositions comprising a dispersed hydrated alkali metal borate and a polyalkylene succinic anhydride, a mixture of polyalkylene succinic anhydrides or derivatives thereof. Also disclosed are methods for improving the water tolerance of a lubricant composition comprising an alkali metal borate. Such methods employ compositions comprising a dispersed hydrated alkali metal borate and a polyalkylene succinic anhydride, a mixture of polyalkylene succinic anhydrides or derivatives thereof.

    Abstract translation: 公开了包含分散的水合碱金属硼酸盐和聚亚烷基琥珀酸酐,聚亚烷基琥珀酸酐或其衍生物的混合物的润滑剂组合物。 还公开了用于改善包含碱金属硼酸盐的润滑剂组合物的耐水性的方法。 这种方法使用包含分散的水合碱金属硼酸盐和聚亚烷基琥珀酸酐,聚亚烷基琥珀酸酐或其衍生物的混合物的组合物。

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