METHOD FOR IMPROVING OXIDATION AND DEPOSIT RESISTANCE OF LUBRICATING OILS

    公开(公告)号:US20200181525A1

    公开(公告)日:2020-06-11

    申请号:US16708793

    申请日:2019-12-10

    摘要: Provided is a method for improving oxidation resistance and deposit resistance of a lubricating oil for use in lubricating a mechanical component. The method includes the step of providing the lubricating oil to the mechanical component and measuring the improved oxidation and deposit resistance. The lubricating oil includes a lubricating oil base stock at from 0 to 80 wt %, at least one branched isoparaffin having a mole % of epsilon carbon as measured by C13 NMR of less than or equal to 10% at from 20 to 80 wt %, at least one viscosity modifier at from 5 to 20 wt %, and one or more other lubricating oil additives. The oxidation resistance in the CEC L-109 oxidation resistance test is improved to greater than 310 hours to achieve a 100% viscosity increase and the deposit resistance in the TEOST 33C is improve to total deposits of less than 45 mg as compared to oxidation resistance and deposit resistance achieved using a lubricating oil not containing the at least one branched isoparaffin.

    BIODEGRADABLE FLUIDS
    4.
    发明申请

    公开(公告)号:US20220002630A1

    公开(公告)日:2022-01-06

    申请号:US17364977

    申请日:2021-07-01

    摘要: The incorporation of highly refined, low viscosity index base oils along with a polymeric thickener produces a final readily biodegradable fluid with a significantly high viscosity. The present invention allows the formulation of a high viscosity readily biodegradable fluid where the vast majority of the fluid is mineral oil. Previous uses of mineral oils only allowed for formulation of substantially lower viscosity readily biodegradable fluids.

    COMPOSITION FOR COOLING AND LUBRICATING A DRIVE SYSTEM OF A VEHICLE

    公开(公告)号:US20200248095A1

    公开(公告)日:2020-08-06

    申请号:US16757064

    申请日:2018-10-19

    发明人: Julien Guerin

    摘要: A composition with a kinematic viscosity for cooling and lubricating a drive system of an electric or hybrid vehicle, measured at 100° C. in accordance with the standard ASTM D445, in the range 3 to 10 mm2/s. The composition includes 70% to 90% of a base oil or a mixture of base oils having a kinematic viscosity, measured at 100° C. in accordance with the standard ASTM D445, of 1.5 to 8 mm2/s and selected from polyalphaolefins; and at least one thickening polymer.