A LOW PHOSPHORUS LUBRICATING OIL COMPOSITION HAVING LEAD CORROSION CONTROL
    6.
    发明申请
    A LOW PHOSPHORUS LUBRICATING OIL COMPOSITION HAVING LEAD CORROSION CONTROL 审中-公开
    具有铅腐蚀控制的低磷石油润滑油组成

    公开(公告)号:WO2008021901A3

    公开(公告)日:2008-04-17

    申请号:PCT/US2007075507

    申请日:2007-08-08

    Abstract: The present invention provides a low phosphorus lubricating oil composition containing a mixture of zinc dithiophosphates in a certain ratio surprisingly yields improved lead corrosion. The synergistic combination of mixed zinc dithiophosphates containing a zinc primary dialkyl dithiophosphate, zinc secondary dialkyl dithiophosphate and zinc diaryl dithiophosphate in a respective ratio, based on the phosphorus content, of the zinc primary dialkyl dithiphosphate to zinc secondary dialkyl dithiophosphate from about 2:1 to about 1:2 and the ratio of the mixture of zinc primary dialkyl dithiophosphate and zinc secondary dialkyl dithiophosphate to zinc diaryl dithiophosphate from about 6:1 to about 1:1. When used in a lubricating oil composition having a total phosphorus content less than about 0.06 wt %, based on the total weight of the lubricating oil composition to lubricate internal combustion engines. The mixture of zinc dithiophosphates greatly reduces lead corrosion.

    Abstract translation: 本发明提供含有一定比例的二硫代磷酸锌混合物的低磷润滑油组合物令人惊讶地产生改善的铅腐蚀。 含有一次二烷基二硫代磷酸锌,次级二烷基二硫代磷酸锌和二芳基二硫代磷酸锌的混合二硫代磷酸锌与二烷基二硫代磷酸锌的磷含量相对比例为约2:1至 约1:2,一次二烷基二硫代磷酸锌和次级二烷基二硫代磷酸锌的混合物与二芳基二硫代磷酸锌的比例为约6:1至约1:1。 当用于总磷含量小于约0.06重量%的润滑油组合物时,基于润滑油组合物的总重量来润滑内燃机。 二硫代磷酸锌的混合物大大降低了铅的腐蚀。

    A LOW PHOSPHORUS LUBRICATING OIL COMPOSITION HAVING LEAD CORROSION CONTROL
    8.
    发明申请
    A LOW PHOSPHORUS LUBRICATING OIL COMPOSITION HAVING LEAD CORROSION CONTROL 审中-公开
    具有铅腐蚀控制的低磷润滑油组合物

    公开(公告)号:WO2008021901A2

    公开(公告)日:2008-02-21

    申请号:PCT/US2007/075507

    申请日:2007-08-08

    Abstract: The present invention provides a low phosphorus lubricating oil composition containing a mixture of zinc dithiophosphates in a certain ratio surprisingly yields improved lead corrosion. The synergistic combination of mixed zinc dithiophosphates containing a zinc primary dialkyl dithiophosphate, zinc secondary dialkyl dithiophosphate and zinc diaryl dithiophosphate in a respective ratio, based on the phosphorus content, of the zinc primary dialkyl dithiphosphate to zinc secondary dialkyl dithiophosphate from about 2:1 to about 1:2 and the ratio of the mixture of zinc primary dialkyl dithiophosphate and zinc secondary dialkyl dithiophosphate to zinc diaryl dithiophosphate from about 6:1 to about 1:1. When used in a lubricating oil composition having a total phosphorus content less than about 0.06 wt %, based on the total weight of the lubricating oil composition to lubricate internal combustion engines. The mixture of zinc dithiophosphates greatly reduces lead corrosion.

    Abstract translation: 本发明提供含有二硫代磷酸锌以一定比例的混合物的低磷润滑油组合物令人惊讶地产生改善的铅腐蚀。 含有锌二硫代磷酸锌,二仲丁基二硫代磷酸锌和二芳基二硫代磷酸锌的混合二硫代磷酸锌的协同组合,基于磷含量,锌二烷基二硫代磷酸锌与二硫代磷酸二仲丁基锌的比例为约2:1至 约1:2,锌二烷基二硫代磷酸锌和二仲丁基二硫代磷酸锌的混合物与二芳基二硫代磷酸锌的混合物的比例为约6:1至约1:1。 当用于总磷含量小于约0.06重量%的润滑油组合物中时,基于用于润滑内燃机的润滑油组合物的总重量。 二硫代磷酸锌的混合物大大减少了铅的腐蚀。

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