LOW VISCOSITY GEAR LUBRICANTS
    4.
    发明申请

    公开(公告)号:US20180312775A1

    公开(公告)日:2018-11-01

    申请号:US15772843

    申请日:2017-05-11

    Abstract: A lubricant composition of 40 to 95% of an oil having a kinematic viscosity at 100° C. of 3 to 7.5; 0.3 to 2% of an amine salt of a phosphorus compound obtained by reacting phosphorus pentasulfide with one or more alcohols having 4 to about 13, or 4 to 8, or 6, carbon atoms, with an alkylene oxide, and further with phosphorus pentoxide, and salting the resulting material with one or more amines having 2 to 20 or 12 to 24 carbon atoms; and an active-sulfur containing agent in an amount to provide 0.5 to 7% sulfur to the composition provides good wear protection to gears at a relatively low viscosity of the composition.

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