Phosphorus-containing lubricant and functional fluid compositions

    公开(公告)号:SG151594G

    公开(公告)日:1995-03-17

    申请号:SG151594

    申请日:1994-10-17

    Applicant: LUBRIZOL CORP

    Abstract: This invention is directed to lubricating oil and functional fluid compositions having improved high temperature stability and which contain at least one phosphorus-containing composition and at least one oil-soluble nitrogen-containing composition. More particularly, the lubricating and functional fluid compositions of the present invention comprise (A) a major amount of an oil of lubricating viscosity, and a minor amount of (B-1) at least one soluble tertiary aliphatic primary amine salt of a substituted phosphoric acid composition characterized by the formula (I) wherein R1 is hydrogen or a hydrocarbyl group, R2 is a hydrocarbyl group, and both X groups are either O or S, and (C) at least one soluble nitrogen-containing composition prepared by the reaction of a hydrocarbon-substituted succinic acid-producing compound with at least about one-half equivalent, per equivalent of acid producing compound, of an amine containing at least one hydrogen attached to a nitrogen atom. Preferably, the amine salts of the phosphoric acids utilized in the lubricating compositions of the present invention are derived from primary amines, and the soluble nitrogen-containing compositions (C) also contain boron. The lubricating compositions of the present invention are particularly useful in gear applications requiring high thermal stability such as from about 160 DEG C. with intermittent operation up to about 200 DEG C.

    Phosphorus-containing lubricant and functional fluid compositins

    公开(公告)号:HK895A

    公开(公告)日:1995-01-13

    申请号:HK895

    申请日:1995-01-05

    Applicant: LUBRIZOL CORP

    Abstract: This invention is directed to lubricating oil and functional fluid compositions having improved high temperature stability and which contain at least one phosphorus-containing composition and at least one oil-soluble nitrogen-containing composition. More particularly, the lubricating and functional fluid compositions of the present invention comprise (A) a major amount of an oil of lubricating viscosity, and a minor amount of (B-1) at least one soluble tertiary aliphatic primary amine salt of a substituted phosphoric acid composition characterized by the formula (I) wherein R1 is hydrogen or a hydrocarbyl group, R2 is a hydrocarbyl group, and both X groups are either O or S, and (C) at least one soluble nitrogen-containing composition prepared by the reaction of a hydrocarbon-substituted succinic acid-producing compound with at least about one-half equivalent, per equivalent of acid producing compound, of an amine containing at least one hydrogen attached to a nitrogen atom. Preferably, the amine salts of the phosphoric acids utilized in the lubricating compositions of the present invention are derived from primary amines, and the soluble nitrogen-containing compositions (C) also contain boron. The lubricating compositions of the present invention are particularly useful in gear applications requiring high thermal stability such as from about 160 DEG C. with intermittent operation up to about 200 DEG C.

    87.
    发明专利
    未知

    公开(公告)号:FI914142A0

    公开(公告)日:1991-09-03

    申请号:FI914142

    申请日:1991-09-03

    Applicant: LUBRIZOL CORP

    Inventor: SCHWIND JAMES J

    Abstract: This invention relates to lubricating compositions comprising: (A) a major amount of an oil of lubricating viscosity; (B) at least one borated overbased Group I or II metal salt of an organic acid; (C) at least one polysulfide-containing organic composition; and (D) at least one phosphorus-containing composition other than a zinc dithiophosphate. Lubricating compositions of the present invention have beneficial viscosity and friction characteristics required by a manual transmission as well as beneficial extreme pressure protection required for a gear assembly.

    89.
    发明专利
    未知

    公开(公告)号:DK135990A

    公开(公告)日:1990-08-07

    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.

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