LIQUID COMPOSITIONS CONTAINING CARBOXYLIC ESTERS

    公开(公告)号:CA2094857A1

    公开(公告)日:1993-10-29

    申请号:CA2094857

    申请日:1993-04-26

    Applicant: LUBRIZOL CORP

    Abstract: L-2456R Title: LIQUID COMPOSITIONS CONTAINING CARBOXYLIC ESTERS This invention relates to a liquid composition comprising (A) at least one fluorine-containing hydrocarbon containing one to three carbon atoms, and a lubricant comprising (B) at least one ester lubricant selected from the group consisting of (i) an ester of a polyhydroxy compound and a monocarboxylic acylating agent having from about 4 to about 15 carbon atoms, and (ii) an ester of polyhydroxy compound and a combination of a dicarboxylic acylating agent and a monocarboxylic acylating agent having about 7 to about 15 carbon atoms, and (C) at least one additive selected from the group consisting of an alkyl phosphite, an alkyl phosphonic acid ester, a nitrogen-containing heterocycle, and a mixture thereof. Liquid compositions also are described wherein the fluorine-containing hydrocarbons also contain other halogens such as chlorine. Methods of lubricating refrigeration systems are also described. The liquid compositions are useful particularly as refrigeration liquids in refrigerators and air-conditioners including automotive, home, commercial and industrial air-conditioners.

    14.
    发明专利
    未知

    公开(公告)号:MX170595B

    公开(公告)日:1993-09-01

    申请号:MX501378

    申请日:1978-02-23

    Applicant: LUBRIZOL CORP

    Abstract: CARBOXYLIC ACID ACYLATING AGENTS ARE DERIVED FROM POLYALKENES SUCH AS POLYBUTENES, AND A DIBASIC, CARBOXYLIC REACTANT SUCH AS MALEIC OR FUMARIC ACID OR CERTAIN DERIVATIVES THEREOF. THESE ACYLATING AGENTS ARE CHARACTERIZED IN THAT THE POLYALKENES FROM WHICH THEY ARE DERIVED HAVE A MN VALUE OF ABOUT 1300 TO ABOUT 5000 AND A MW/MN VALUE OF ABOUT 1.5 TO ABOUT 4. THE ACYLATING AGENTS ARE FURTHER CHARACTERIZED BY THE PRESENCE WITHIN THEIR STRUCTURE OF AT LEAST 1.3 GROUPS DERIVED FROM THE DIBASIC, CARBOXYLIC REACTANT FOR EACH EQUIVALENT WEIGHT OF THE GROUPS DERIVED FROM THE POLYALKENE. THE ACYLATING AGENTS CAN BE REACTED WITH THE FURTHER REACTANT SUBJECT TO BEING ACYLATED SUCH AS POLYETHYLENE POLYAMINES AND POLYOLS (E.G., PENTACYTHRITOL) TO PRODUCE DERIVATIVES USEFUL PER SE AS LUBRICANT ADDITIVES OR AS INTERMEDIATES TO BE SUBJECTED TO POST- TREATMENT WITH STILL OTHER DERIVATIVES USEFUL AS LUBRICANT ADDITIVES.

    Sulphur-containing compositions and additive concentrates, and lubricating oils which contain such mixtures

    公开(公告)号:DK166365B

    公开(公告)日:1993-04-13

    申请号:DK463486

    申请日:1986-09-29

    Applicant: LUBRIZOL CORP

    Abstract: Sulfur-containing, oil-soluble compositions are described which are useful as lubricating oil additives, particularly in lubricants containing little or no phosphorus. In one embodiment, the compositions of the invention comprise (A) at least one metal salt of at least one dithiocarbamic acid of the formula R1(R2)N-CSSH (I) wherein R1 and R2 are each independently hydrocarbyl groups in which the total number of carbon atoms in R1 and R2 is sufficient to render the metal salt oil-soluble, (B) at least one oil-soluble sulfurized organic compound, and (C) at least one auxiliary corrosion-inhibitor. In other embodiments, the compositions also contain (D) at least one detergent/dispersant. Lubricating oil compositions containing the compositions of the invention exhibit improved oxidation-corrosion-inhibiting properties, anti-wear properties, and/or extreme pressure properties. Such lubricating compositions containing less than about 0.1% by weight of phosphorus also exhibit good compatability with nitrile seals.

    19.
    发明专利
    未知

    公开(公告)号:MX163337A

    公开(公告)日:1992-04-23

    申请号:MX138086

    申请日:1986-01-29

    Applicant: LUBRIZOL CORP

    Abstract: Sulfur-containing, oil-soluble compositions are described which are useful as lubricating oil additives, particularly in lubricants containing little or no phosphorus. In one embodiment, the compositions of the invention comprise (A) at least one metal salt of at least one dithiocarbamic acid of the formula R1(R2)N-CSSH (I) wherein R1 and R2 are each independently hydrocarbyl groups in which the total number of carbon atoms in R1 and R2 is sufficient to render the metal salt oil-soluble, (B) at least one oil-soluble sulfurized organic compound, and (C) at least one auxiliary corrosion-inhibitor. In other embodiments, the compositions also contain (D) at least one detergent/dispersant. Lubricating oil compositions containing the compositions of the invention exhibit improved oxidation-corrosion-inhibiting properties, anti-wear properties, and/or extreme pressure properties. Such lubricating compositions containing less than about 0.1% by weight of phosphorus also exhibit good compatability with nitrile seals.

    20.
    发明专利
    未知

    公开(公告)号:IT1231516B

    公开(公告)日:1991-12-07

    申请号:IT4801389

    申请日:1989-05-29

    Applicant: LUBRIZOL CORP

    Abstract: A lubricating oil formulation is described which is useful in internal combustion engines. More particularly, lubricating oil compositions for internal combustion engines are described with comprises (A) at least about 60% by weight of oil of lubricating viscosity, (B) at least about 2.0% by weight of at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) from about 0.70 equivalent up to less than one equivalent, per equivalent of acylating agent, of at least one amine compound characterized by the presence within its structure of at least one HN

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