41.
    发明专利
    未知

    公开(公告)号:FI925777A

    公开(公告)日:1992-12-18

    申请号:FI925777

    申请日:1992-12-18

    Applicant: LUBRIZOL CORP

    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.

    42.
    发明专利
    未知

    公开(公告)号:NO924807L

    公开(公告)日:1992-12-11

    申请号:NO924807

    申请日:1992-12-11

    Applicant: LUBRIZOL CORP

    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.

    BASIC MAGNESIUM SALTS, PROCESSES, AND LUBRICANTS AND FUELS CONTAINING THE SAME

    公开(公告)号:CA951709A

    公开(公告)日:1974-07-23

    申请号:CA70231

    申请日:1969-12-18

    Applicant: LUBRIZOL CORP

    Abstract: 1297150 Lubricants and fuels containing basic magnesium salts LUBRIZOL CORP 15 Dec 1969 [19 Dec 1968 17 Sept 1969] 61007/69 Heading C5F and C5G Oil-soluble basic magnesium salts are prepared by: (1) contacting an inorganic acidic material with a mixture comprising (a) a total of X equivalents of at least one organic acid, other than an aliphatic carboxylic acid, or an equivalent derivative thereof; (b) a total of Y equivalents of at least one aliphatic carboxylic acid or sulphonic acid or an equivalent derivative thereof except that when (b) is a sulphonic acid or equivalent derivative thereof then (a) must be other than a sulphonic acid or an equivalent derivative thereof, wherein the ratio of X : Y is from 1:1 to 20:1; (c) Z equivalents of basically reacting magnesium oxide or freshly formed magnesium hydroxide, wherein the value of Z/X+Y is from 1À1 to 30; and (d) water, until the reaction between the acidic material and the mixture substantially ceases; or by (2) contacting an inorganic acidic material with a mixture comprising (a) a total of X equivalents of at least one organic acid, other than an aliphatic carboxylic acid, or an equivalent derivative thereof; (b) a total of Y equivalents of at least one aliphatic carboxylic acid or an equivalent derivative thereof, wherein the ratio of X : Y is from 1:1 to 20:1; (c) Z equivalents of basically reacting magnesium oxide or freshly formed magnesium hydroxide wherein the value of Z/X+Y is from 1À1 to 30; (d) at least one C 1 -C 7 aliphatic alcohol; and (e) water, until the reaction between the acidic material and the mixture substantially ceases, subsequently removing all free alcohol, and continuing the contacting of the acidic material with the remainder of the mixture. The salts prepared are added to mineral or synthetic lubricants or to liquid fuels together with other conventional additives such as calcium petrosulphonate, zinc di - n - octylphpsphorodithioate, an ester of polyisobutenyl substituted succinic anhydride and pentaerythritol, an adduct of zinc di-cyclohexylphosphorodithioate and ethylene oxide, sulphurized sperm oil. Extensive lists of suitable lubricants, liquid fuels and reactants used to prepare the basic salts are given. Lists of inert diluents and of auxiliary phenolic promoters which can be included in the reaction mixture are given.

    46.
    发明专利
    未知

    公开(公告)号:DE69717361T2

    公开(公告)日:2003-09-04

    申请号:DE69717361

    申请日:1997-08-14

    Applicant: LUBRIZOL CORP

    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.

    SULFURIZED OVERBASED COMPOSITIONS
    50.
    发明专利

    公开(公告)号:CA2105314A1

    公开(公告)日:1994-03-05

    申请号:CA2105314

    申请日:1993-09-01

    Applicant: LUBRIZOL CORP

    Abstract: This invention relates to a composition comprising at least one sulfurized overbased product made by contacting (A) at least one overbased product or (A') at least one boron-containing overbased product with (B) sulfur and/ or at least one source of sulfur; said overbased product (A) or boron-containing overbas ed product (A') being made using at least one acidic material, with the proviso that when said acidic material is other than SO2 or a source of SO2 said overbased product (A) or boron-containing overbased product (A') is contacted with an effective amount of SO2 or a source of SO2 to displace at least part of said acidic material. In one embodiment the sulfurized overbased product is an overbased thiosulfate or a boron- containing overbased thiosulfate. In one embodiment, the sulfurized overbase d product is made using the overbased product (A) and the composition further comprises at least one non-sulfurized boron-containing overbased product. Th e sulfurized overbased products are thermally stable and are useful as extreme pressure (EP) and/or anti-wear agents or antioxidants for use in lubricants, function al fluids and normally liquid fuels. The functional fluids can be oil-based, water-oil emulsions or water-based. The sulfurized overbased products are particularly suitable for useas EP and/or anti-wear agents for use in gear lubricants and cutting fluids. In one embodiment lubricating compositions are provided that pass both the L-37 Hig h Torque Test and the L-42 High Speed Shock Test without the necessity of employing phosphorus and sulfurized olefin anti-wear systems in their formulation.

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