LUBRICATING OIL COMPOSITIONS
    1.
    发明申请
    LUBRICATING OIL COMPOSITIONS 审中-公开
    润滑油组合物

    公开(公告)号:US20150344813A1

    公开(公告)日:2015-12-03

    申请号:US14727927

    申请日:2015-06-02

    Abstract: A lubricating oil composition having a sulphated ash content of less than or equal to 1.2 mass % as determined by ASTM D874 and a phosphorous content of less than or equal to 0.12 mass % as determined by ASTM D5185, which lubricating oil composition comprises or is made by admixing: an oil of lubricating viscosity, in a major amount; an oil-soluble or oil-dispersible polymeric friction modifier as an additive in an effective minor amount; and, an oil-soluble or oil-dispersible dihydrocarbyl dithiophosphate metal salt as an additive in an effective minor amount.

    Abstract translation: 根据ASTM D874测定的硫酸盐灰分含量小于或等于1.2质量%的润滑油组合物,并且通过ASTM D5185测定的磷含量小于或等于0.12质量%,该润滑油组合物包含或制成 通过混合:大量润滑粘度的油; 油溶性或油分散性聚合物摩擦改进剂作为有效微量的添加剂; 油溶性或油分散性二烃基二硫代磷酸盐金属盐作为有效微量的添加剂。

    Dispersant
    4.
    发明申请
    Dispersant 审中-公开
    分散剂

    公开(公告)号:US20080221002A1

    公开(公告)日:2008-09-11

    申请号:US11791077

    申请日:2005-11-07

    Abstract: A novel ashless polymeric dispersant is claimed which is suitable for use in an automotive lubricant composition. The ashless polymeric dispersant has a number average molecular weight of between 200 and 15,000 and derived from the reaction of a polar head group, which comprises a polar moiety having more than one amine, alcohol, acid or halogen functionality with two or more polar tail groups where each polar tail group comprises a polymeric backbone of 2 to 30 monomeric repeat units, each repeat unit comprising a hydrocarbon chain functionalised by the presence of at least one electronegative element or moiety. The dispersant has good dispersancy properties, when used as a sole dispersant or in combination with other dispersants. It provides enhanced seal resistance and has good oxidative stability in automotive applications as compared to current commercial products. Furthermore the low temperature viscosity of an automotive lubricant composition containing the dispersant is superior to that of a composition with current commercial dispersants.

    Abstract translation: 要求一种适用于汽车润滑剂组合物的新型无灰聚合物分散剂。 无灰聚合物分散剂的数均分子量为200至15,000,衍生自极性基团的反应,极性基团包含具有多于一个胺的极性部分,醇,酸或卤素官能团与两个或多个极性尾基 其中每个极性尾组包含2至30个单体重复单元的聚合物主链,每个重复单元包含通过存在至少一个电负性元素或部分官能化的烃链。 当用作单独的分散剂或与其它分散剂组合时,分散剂具有良好的分散性。 与目前的商业产品相比,它在汽车应用中提供了更强的密封性,并且具有良好的氧化稳定性。 此外,含有分散剂的汽车润滑剂组合物的低温粘度优于目前商用分散剂的组合物的低温粘度。

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