derivados de ácido tartárico em fluidos hths

    公开(公告)号:BR112012028621A2

    公开(公告)日:2016-08-02

    申请号:BR112012028621

    申请日:2011-05-06

    Applicant: LUBRIZOL CORP

    Inventor: DAVIES MARK C

    Abstract: derivados de ácido tartárico em fluidos hths. a presente invenção provê composições lubrificantes de valor hths alto que aperfeiçoaram o desempenho de economia dos combustíveis. a presente invenção também provê métodos para operação de um motor de combustão interna utilizando tais composições. as composições lubrificantes de invenção utilizam compostos imida butano dióicos, tais como, tartrimidas e podem também apresentar baixo teor de enxofre, baixo teor de cinzas e baixo teor de fósforo, provendo desgaste e atrito mai sbaixos além de economia de combustível aperfeiçoada.

    LUBRICATING COMPOSITION INCLUDING ESTERIFIED COPOLYMER AND DIENE RUBBER POLYMER

    公开(公告)号:CA2881424A1

    公开(公告)日:2014-02-27

    申请号:CA2881424

    申请日:2013-08-19

    Applicant: LUBRIZOL CORP

    Abstract: A lubricating composition includes (A) an esterified copolymer comprising units (A1) derived from a vinyl monomer and units (A2) derived from a carboxylic acid monomer, the vinyl monomer comprising a vinyl aliphatic monomer, the carboxylic acid monomer comprising an ethylenically unsaturated carboxylic acid or derivative thereof, esterified with a primary alcohol; and (B) a diene rubber copolymer comprising at least a first block (B1) derived from a conjugated diene monomer and at least a second block (B2) derived from a vinyl aromatic monomer. A ratio of the diene rubber copolymer to the esterified copolymer in the lubricating composition (B:A) is from 0.01 to 0.9, by weight.

    ASPHALTENE INHIBITION
    26.
    发明专利

    公开(公告)号:CA2584787C

    公开(公告)日:2013-01-22

    申请号:CA2584787

    申请日:2005-10-26

    Applicant: LUBRIZOL CORP

    Abstract: The present invention provides a method of asphaltene control in a hydrocarbon fluid, the method employing a composition comprising: a dispersant of formulae (I) or (II), including salts thereof, wherein T or T' is hydrogen or a polymerizing terminating group; A is C16-20 alkylene or alkenylene group; B is C10-20 alkylene or alkenylene group; Z and Z' are the residue of a polyamine or polyimine; n is 2 to 50; m is 0 to 25; p and p' are 2 or more, in one embodiment not greater than 2000 and in another embodiment not greater than 1000; A' is C8-20 alkylene or alkenylene group; n' is 2 to 10; and the weight ratio of T-(O-A-CO)n (O-B-CO)m to Z or T'-(O-A'-CO)n to Z' is at least 5:1.

    TARTARIC ACID DERIVATIVES IN HTHS FLUIDS

    公开(公告)号:CA2798388A1

    公开(公告)日:2011-11-17

    申请号:CA2798388

    申请日:2011-05-06

    Applicant: LUBRIZOL CORP

    Inventor: DAVIES MARK C

    Abstract: The present invention provides high-HTHS value lubricating compositions that have improved fuel economy performance. The present invention also provides methods of operating an internal combustion engine utilizing such compositions. The lubricating compositions of the invention utilize butane dioic imide compounds, such as tartrimides, and may also be low sulfur, low ash and low phosphorus, providing lower wear and friction and improved fuel economy.

    ENGINE OIL FORMULATIONS FOR BIODIESEL FUELS

    公开(公告)号:CA2766063A1

    公开(公告)日:2010-12-29

    申请号:CA2766063

    申请日:2010-06-22

    Applicant: LUBRIZOL CORP

    Abstract: Oxidative degradation may be reduced in a lubricant composition which contains an oil of lubricating viscosity and at least about 1 percent by weight of a C1-C3 alkyl ester of a carboxylic acid of about 12 to about 24 carbon atoms, by including within the lubricant composition a sulfonate detergent in an amount sufficient to provide at least about 0.2 percent by weight sulfonate soap to the lubricant composition, wherein the weight ratio of sulfonate soap to phenate soap in the lubricant composition is at least about 0.35:1.

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