LIQUID COMPOSITION CONTAINING CARBOXYLIC ACID ESTER

    公开(公告)号:JPH06108081A

    公开(公告)日:1994-04-19

    申请号:JP10330893

    申请日:1993-04-28

    Applicant: LUBRIZOL CORP

    Abstract: 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.

    LIQUID COMPOSITION CONTAINING CARBOXYLIC ACID ESTER

    公开(公告)号:JPH10251678A

    公开(公告)日:1998-09-22

    申请号:JP6878498

    申请日:1998-03-18

    Applicant: LUBRIZOL CORP

    Inventor: JOLLEY SCOTT TED

    Abstract: PROBLEM TO BE SOLVED: To obtain a liquid composition being excellent in compatibility between the constituents in a low to high temperature region and useful as a coolant for a cooling apparatus by mixing a fluorohydrocarbon with an organic lubricant comprising a carboxylic acid ester of a polyhydric hydroxyl compound. SOLUTION: This composition comprises at least one fluorohydrocarbon (A) containing one or two carbon atoms and containing only fluorine as the halogen and at least one soluble organic lubricant (B) containing at least one ester made from a polyhydric hydroxyl compound and a carboxylic acid and is represented by the formula: R[OC(O)R ]n (wherein R is a hydrocarbyl, each R is hydrogen, a linear lower hydrocarbyl, a branched hydrocarbyl, an 8-22C linear hydrocarbyl or the like; and n is at least 2). Usually, component A is used in an amount of about 50 to 99wt.% based on the composition.

    Liquid compositions containing carboxylic esters

    公开(公告)号:HK1000828A1

    公开(公告)日:1998-05-01

    申请号:HK97102384

    申请日:1997-12-10

    Applicant: LUBRIZOL CORP

    Abstract: The invention relates to liquid compositions which comprises (A) at least one fluorine-containing hydrocarbon containing one to three carbon atoms; and a lubricant comprising (B) at least one carboxylic ester of (I) a polyhydroxy compound, and (II) a combination of (a) a monocarboxylic acylating agent having four or five carbon atoms, (b) a monocarboxylic acylating agent having from about 7 to about 15 carbon atoms and (c) a polycarboxylic acylating agent. In another aspect of the invention, the liquid compositions consist essentially of (A) at least one fluorine-containing hydrocarbon, and (B) at least one ester of (I) at least one polyhydroxy compound described herein and (II) at least one combination of carboxylic acylating agents as described herein. The lubricant may additionally contain (C) an 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 halogen such as chlorine. The liquid compositions are useful particularly as refrigeration liquids in refrigerators and air-conditioners including automotive, home and industrial air-conditioners.

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