PROCESS FOR PREPARING MOLYBDENUM-CONTAINING COMPOSITIONS USEFUL FOR IMPROVED FUEL ECONOMY OF INTERNAL COMBUSTION ENGINES

    公开(公告)号:CA1148537A

    公开(公告)日:1983-06-21

    申请号:CA369004

    申请日:1981-01-21

    Applicant: LUBRIZOL CORP

    Inventor: RIPPLE DAVID E

    Abstract: Molybdenum-containing compositions prepared by reacting: (a) a phosphorus-containing acid represented by the formula: wherein each X and X' is independently oxygen or sulfur, each n is zero or one and each R is independently the same or a different hydrocarbon-based radical; and (b) at least one hexavalent molybdenum oxide compound, and (c) hydrogen sulfide, is the presence of (d) a polar solvent are useful as additives for lubricants. Internal combustion engines, especially gasoline engines, when lubricated by said additivecontaining lubricants exhibit improved fuel economy.

    Zinc-free farm tractor fluid
    25.
    发明专利

    公开(公告)号:AU2006266095B2

    公开(公告)日:2010-08-05

    申请号:AU2006266095

    申请日:2006-06-27

    Applicant: LUBRIZOL CORP

    Inventor: RIPPLE DAVID E

    Abstract: A lubricating composition comprising an oil of lubricating viscosity; an amine salt of a phosphorus acid ester; a thiadiazole copper corrosion inhibitor; an overbased metal detergent; a boron compound; and at least one friction modifier provides good lubrication of a mechanical device such as a farm tractor, even though such composition is substantially free from zinc dialkyldithiophosphate.

    Zinc-free farm tractor fluid
    26.
    发明专利

    公开(公告)号:AU2006266095A1

    公开(公告)日:2007-01-11

    申请号:AU2006266095

    申请日:2006-06-27

    Applicant: LUBRIZOL CORP

    Inventor: RIPPLE DAVID E

    Abstract: A lubricating composition comprising an oil of lubricating viscosity; an amine salt of a phosphorus acid ester; a thiadiazole copper corrosion inhibitor; an overbased metal detergent; a boron compound; and at least one friction modifier provides good lubrication of a mechanical device such as a farm tractor, even though such composition is substantially free from zinc dialkyldithiophosphate.

    27.
    发明专利
    未知

    公开(公告)号:DE69617761T2

    公开(公告)日:2002-08-08

    申请号:DE69617761

    申请日:1996-01-26

    Applicant: LUBRIZOL CORP

    Abstract: A low sulfate ash lubricating oil composition comprising an oil of lubricating viscosity, 0.1 to 3.0 % of a calcium overbased acidic material, 0.1 to 2.0 % of a magnesium overbased acidic material, and at least 0.5% of a combination of an alkylene-coupled hindered phenol antioxidant and an antioxidant other than an alkylene-coupled hindered phenol antioxidant, is particularly useful for lubricating stationary gas engines.

    30.
    发明专利
    未知

    公开(公告)号:MX9303138A

    公开(公告)日:1994-06-30

    申请号:MX9303138

    申请日:1993-05-27

    Applicant: LUBRIZOL CORP

    Abstract: A diesel lubricant exhibiting improved ability to minimize undesirable viscosity increases when used in diesel engines is described. More particularly, in accordance with the present invention, a diesel lubricant is described which comprises a major amount of an oil of lubricating viscosity and a minor amount, sufficient to minimize undesirable viscosity increases of the lubricant when used in diesel engines, of a composition comprising (A) at least one carboxylic derivative composition produced by reacting at least one substituted succinic acylating agent with at least one amino compound containing at least one -NH- group wherein said acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from polyalkene characterized by an Mn value of at least about 1200 and an Mw/Mn ratio of at least about 1.5, and wherein said acylating agents are characterized by the presence within their structure of an average of at least about 1.3 succinic groups for each equivalent weight of substituent groups, and (B) at least one basic alkali or alkaline earth metal salt of at least one acidic organic compound having a metal ratio of at least about 2. The composition should have a TBN in the range of about 6 to about 15, with the sucinnic acid derivative contributing about 0.5 to 1.5 TBN to the composition. The alkali or alkaline earth metal salts (detergents) should contribute the rest of the TBN of the composition. TBN is measured by the ASTM D2896 method. Magnesium should contribute less than about 30% of the total TBN of the composition. The invention also includes methods for operating diesel engines which comprises lubricating said engines during operation with the diesel lubricants of the invention.

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