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    22.
    发明专利
    未知

    公开(公告)号：DE69717361D1

    公开(公告)日：2003-01-09

    申请号：DE69717361

    申请日：1997-08-14

    Applicant: LUBRIZOL CORP

    Inventor： CLEVELAND WILLIAM K S ,  KARN JACK L ,  VARGO DANIEL M

    IPC: C10M129/54 ,  C10M129/76 ,  C10M133/16 ,  C10M167/00 ,  C10N30/04 ,  C10N40/26 ,  F02B75/02 ,  C10M159/22

    Abstract: Two-stroke cycle engines can be effectively lubricated by supplying to the engine a mixture of an oil of lubricating viscosity and a hydrocarbyl-substituted hydroxyaromatic carboxylic acid or an ester, unsubstituted amide, hydrocarbyl-substituted amide, ammonium salt, hydrocarbylamine salt, or monovalent metal salt thereof in an amount suitable to reduce piston deposits in said engine. The mixture supplied to the engine contains less than 0.06 percent by weight of divalent metals.

    24.
    发明专利
    未知

    公开(公告)号：ES2085628T3

    公开(公告)日：1996-06-01

    申请号：ES92914141

    申请日：1992-02-27

    Applicant: LUBRIZOL CORP

    Inventor： SALOMON MARY F ,  DAVIS KIRK E ,  KARN JACK L ,  CAHOON JOHN M

    IPC: C10M20060101 ,  C10M163/00 ,  C10N10/02 ,  C10N10/04 ,  C10N20/04 ,  C10N30/04 ,  C10N30/10 ,  C10N40/25 ,  F02F7/00

    Abstract: This invention relates to a lubricating oil composition, comprising: a major amount of an oil of lubricating viscosity; and (A) an amount of at least one alkali metal overbased salt of an acidic organic compound sufficient to provide at least about 0.005 equivalents of alkali metal per 100 grams of the lubricating composition; (B) at least about 1.13% by weight of at least one dispersant; (C) at least one metal dihydrocarbyl dithiophosphate; and (D) at least one antioxidant, provided that the lubricating oil composition is free of calcium overbased sulfonate; provided that the composition contains less than about 0.08% by weight calcium; and provided that (C) and (D) are not the same.

    Diesel lubricants and methods
    25.
    发明专利
    Diesel lubricants and methods 未知

    公开(公告)号：AU667582B2

    公开(公告)日：1996-03-28

    申请号：AU5089493

    申请日：1993-05-04

    Applicant: LUBRIZOL CORP

    Inventor： RIPPLE DAVID E ,  KARN JACK L ,  VARGO DANIEL M

    IPC: C10M159/20 ,  C10M159/22 ,  C10M159/24 ,  C10M163/00 ,  F02B3/06 ,  C10M133/52

    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.

    26.
    发明专利
    未知

    公开(公告)号：AT133702T

    公开(公告)日：1996-02-15

    申请号：AT92914141

    申请日：1992-02-27

    Applicant: LUBRIZOL CORP

    Inventor： SALOMON MARY F ,  DAVIS KIRK E ,  KARN JACK L ,  CAHOON JOHN M

    IPC: C10M20060101 ,  C10M163/00 ,  C10N10/02 ,  C10N10/04 ,  C10N20/04 ,  C10N30/04 ,  C10N30/10 ,  C10N40/25 ,  F02F7/00

    Abstract: This invention relates to a lubricating oil composition, comprising: a major amount of an oil of lubricating viscosity; and (A) an amount of at least one alkali metal overbased salt of an acidic organic compound sufficient to provide at least about 0.005 equivalents of alkali metal per 100 grams of the lubricating composition; (B) at least about 1.13% by weight of at least one dispersant; (C) at least one metal dihydrocarbyl dithiophosphate; and (D) at least one antioxidant, provided that the lubricating oil composition is free of calcium overbased sulfonate; provided that the composition contains less than about 0.08% by weight calcium; and provided that (C) and (D) are not the same.

    30.
    发明专利
    未知

    公开(公告)号：MX9206986A

    公开(公告)日：1993-11-01

    申请号：MX9206986

    申请日：1992-12-03

    Applicant: LUBRIZOL CORP

    Inventor： SALOMON MARY F ,  DAVIS KIRK E ,  KARN JACK L ,  CAHOON JOHN M

    IPC: C10M163/00 ,  C10N10/00 ,  C10N10/02 ,  C10N10/04 ,  C10N20/04 ,  C10N30/04 ,  C10N30/10 ,  C10N40/25 ,  C10M117/06

    Abstract: A lubricating oil composition is described which comprises a major amount of an oil of lubricating viscosity and (A) at least about 1 % by weight of at least one carboxylic derivative composition produced by reacting (A-1) at least one substituted succinic acylating agent containing at least about 50 carbon atoms in the substituent with (A-2) from about 0.5 equivalent up to about 2 moles, per equivalent of acylating agent (A-1), of at least one amine compound characterized by the presence within its structure of at least one HN

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