32.
    发明专利
    未知

    公开(公告)号:DK135990D0

    公开(公告)日:1990-06-01

    申请号:DK135990

    申请日:1990-06-01

    Applicant: LUBRIZOL CORP

    Abstract: A lubricating composition is described which comprises a mixture of (A) a major amount of an oil of lubricating viscosity, (B) a dispersant effective amount of at least one ashless dispersant, and (C) a minor, effective amount of at least one demulsifier characterized by the formula wherein R is a hydrocarbyl group, R2, R3, R4 and R5 are each independently H or hydrocarbyl groups, and X is O or NR' wherein R' is hydrogen or a hydrocarbyl group. In one embodiment, the ashless dispersant is a carboxylic dispersant, and the demulsifier is a derivative of imidazoline. The lubricating compositions of the invention are characterized as having improved dispersancy, demulsibility, rust-inhibition and anti-wear properties.

    LUBRICANTS WITH IMPROVED SEAL COMPATIBILITY

    公开(公告)号:CA2853326C

    公开(公告)日:2022-07-12

    申请号:CA2853326

    申请日:2012-10-22

    Applicant: LUBRIZOL CORP

    Inventor: VINCI JAMES N

    Abstract: The present invention relates to industrial gear lubricating composi- tions that include a specific class of substituted triazoles, where the substituted triazole includes at least one hydrocarbyl group linked to one of the nitrogen atoms in the triazole ring. Such compositions pro- vide surprisingly good seal compatibility compared to compositions with other triazoles and/or alternative additives.

    INDUSTRIAL GEAR OILS IMPARTING REDUCED GEARBOX OPERATING TEMPERATURES

    公开(公告)号:CA2892812C

    公开(公告)日:2021-01-26

    申请号:CA2892812

    申请日:2013-11-15

    Applicant: LUBRIZOL CORP

    Abstract: An industrial gear oil compositions that substantially reduce the operating temperature of a gearbox in which the gear oil compositions are used and related methods. A fatty phosphite is added to an industrial gear oil lubricant in addition to an industrial gear lubricant additive package such that the lubricant contains at least 1.0 percent by weight fatty phosphite. The industrial gearbox is operated while supplying the industrial gear oil lubricant to the industrial gearbox. The fatty phosphite comprises at least one di-hydrocarbyl substituted phosphite, wherein the hydrocarbyl groups have 16 to 18 carbon atoms. The industrial gear lubricant additive package and the fatty phosphite are present in amounts such that the weight ratio of additive package to the fatty phosphite is from 4:1 to 1:5.

    38.
    发明专利
    未知

    公开(公告)号:AT513896T

    公开(公告)日:2011-07-15

    申请号:AT03709392

    申请日:2003-02-26

    Applicant: LUBRIZOL CORP

    Inventor: VINCI JAMES N

    Abstract: The invention relates to a lubricating composition comprising: (a) at least one sulfur-free hydrocarbyl phosphoric acid ester or salt, (b) at least one sulfur-containing hydrocarbyl phosphoric acid or salt, (c) an organic polysulfide, (d) at least one dispersant, and (e) at least one triazole metal deactivator. The composition may also include a thiadiazole derivative. This additive combination provides good antiwear and thermal stability properties, even under severe thermal conditions. These compositions also have good demulsibility properties. The above combination of additives provides the antiwear and extreme-pressure protection necessary for automotive and industrial gear applications. These additives additionally provide this protection without adversely effecting demulsibility properties of the lubricant.

    40.
    发明专利
    未知

    公开(公告)号:AT328987T

    公开(公告)日:2006-06-15

    申请号:AT99932266

    申请日:1999-07-06

    Applicant: LUBRIZOL CORP

    Inventor: VINCI JAMES N

    Abstract: This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity and (A) a di or trihydrocarbyl phosphite, (B) at least one reaction product of a di or trihydrocarbyl phosphite and sulfur or a source of sulfur; at least one di or trihydrocarbyl monothiophosphate; or salt thereof, and (C) a salt of a hydrocarbyl phosphoric acid ester. In one embodiment, the lubricant composition contains less than 0.1% phosphorus or less than about 0.75% borated dispersant. This combination of phosphorus compounds provides antiwear and thermal stability to lubricants, even at low phosphorus levels. The lubricating compositions containing the combination of the phosphorus compounds has low corrosivity to copper and low odor as well.

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