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    1.
    发明专利
    未知

    公开(公告)号：AT122336T

    公开(公告)日：1995-05-15

    申请号：AT90903649

    申请日：1990-02-21

    Applicant: LUBRIZOL CORP ,  MILES INC

    Inventor： DIBIASE STEPHEN A ,  ARNDT LARRY W ,  STANSFIELD GREGORY M ,  RENBAUM LOUIS A

    IPC: C07C263/20 ,  C07C265/14

    Abstract: A process is described for the separation and recovery of isocyanate monomers from isocyanate concentrates which leaves a residue which is liquid and burnable. The process for the separation and recovery of isocyanate monomers from isocyanate concentrates formed in the production of isocyanates and comprising a volatile isocyanate monomer and by-products comprises the steps of: (A) preparing a mixture comprising (A-1) the isocyanate concentrate; and (A-2) an oil solution comprising; (A-2-a) a major amount of hydrocarbon oil, and (A-2-b) a minor amount of at least one ashless dispersant; and (B) heating the mixture to an elevated temperature at reduced pressure whereby isocyanate monomer is distilled and recovered leaving a liquid residue. The presence of the oil solution in the mixture facilitates the distillation of the isocyanate concentrate, generally improves the yield of distilled isocyanate monomer, results in a residue which is liquid and easily removed from the distillation apparatus, and the liquid residue can generally be burned without difficulty.

    2.
    发明专利
    未知

    公开(公告)号：MX9207078A

    公开(公告)日：1994-06-30

    申请号：MX9207078

    申请日：1992-12-07

    Applicant: LUBRIZOL CORP

    Inventor： DIBIASE STEPHEN A ,  SOWERBY ROGER LEE ,  HIGGINS WILLIAM ALBERT

    IPC: C07G99/00 ,  C08K5/36 ,  C10M135/02 ,  C08L95/00

    Abstract: Sulfur-containing compositions are described which are prepared by sulfurizing (A) at least one fatty acid ester of a polyhydric alcohol, or (B) at least one fatty acid, fatty acid ester of a monohydric alcohol, or a mixture thereof, or (C) at least one other olefin, or (D) mixtures of any two or more of (A), (B) and (C), in the presence of a catalytic amount of (E) at least one salt of at least one dithiocarbamic acid of the formula R1(R2)N-CSSH wherein R1 and R2 are each independently hydrocarbyl groups, or (F) at least one mercapto benzothiazole, or (G) mixtures of (E) and (F). Preferably, various mixtures of (A), (B) and (C) are sulfurized in accordance with the invention. The incorporation of a catalytic amount of salt of at least one dithiocarbamic acid of Formula I or at least one mercapto benzothiazole (or mixtures thereof) results in the preparation of sulfurized compositions which are characterized by excellent oil solubility and higher sulfur contents, and the compositions generally are lighter in color when compared to sulfurized compositions prepared in the absence of such catalysts. The sulfurized compositions prepared in accordance with the present invention are useful as general purpose antioxidants and friction modifiers for lubricating compositions and automatic transmission fluids and in particular, as additives in metal working lubricants. The above-described sulfurized compositions as well as sulfurized compositions prepared in the absence of catalysts (E) and/or (F) are useful in asphalt compositions.

    Sulphur-containing compositions and additive concentrates, and lubricating oils which contain such mixtures
    3.
    发明专利
    Sulphur-containing compositions and additive concentrates, and lubricating oils which contain such mixtures 未知

    公开(公告)号：DK166365B

    公开(公告)日：1993-04-13

    申请号：DK463486

    申请日：1986-09-29

    Applicant: LUBRIZOL CORP

    Inventor： DIBIASE STEPHEN A ,  DAVIS KIRK EMERSON ,  TAGLIAMONTE THOMAS A

    IPC: C10M135/00 ,  C10M141/10 ,  C10M159/12 ,  C10N10/04 ,  C10N10/12 ,  C10N30/06 ,  C10N30/10 ,  C10N30/12 ,  C10N40/25 ,  C10N60/10

    Abstract: Sulfur-containing, oil-soluble compositions are described which are useful as lubricating oil additives, particularly in lubricants containing little or no phosphorus. In one embodiment, the compositions of the invention comprise (A) at least one metal salt of at least one dithiocarbamic acid of the formula R1(R2)N-CSSH (I) wherein R1 and R2 are each independently hydrocarbyl groups in which the total number of carbon atoms in R1 and R2 is sufficient to render the metal salt oil-soluble, (B) at least one oil-soluble sulfurized organic compound, and (C) at least one auxiliary corrosion-inhibitor. In other embodiments, the compositions also contain (D) at least one detergent/dispersant. Lubricating oil compositions containing the compositions of the invention exhibit improved oxidation-corrosion-inhibiting properties, anti-wear properties, and/or extreme pressure properties. Such lubricating compositions containing less than about 0.1% by weight of phosphorus also exhibit good compatability with nitrile seals.

    6.
    发明专利
    未知

    公开(公告)号：MX163337A

    公开(公告)日：1992-04-23

    申请号：MX138086

    申请日：1986-01-29

    Applicant: LUBRIZOL CORP

    Inventor： DIBIASE STEPHEN A ,  DAVIS KIRK EMERSON ,  TAGLIAMONTE THOMAS A

    IPC: C10M135/00 ,  C10M141/10 ,  C10M159/12 ,  C10N10/04 ,  C10N10/12 ,  C10N30/06 ,  C10N30/10 ,  C10N30/12 ,  C10N40/25 ,  C10N60/10 ,  C10M135/18 ,  C10M133/58

    Abstract: Sulfur-containing, oil-soluble compositions are described which are useful as lubricating oil additives, particularly in lubricants containing little or no phosphorus. In one embodiment, the compositions of the invention comprise (A) at least one metal salt of at least one dithiocarbamic acid of the formula R1(R2)N-CSSH (I) wherein R1 and R2 are each independently hydrocarbyl groups in which the total number of carbon atoms in R1 and R2 is sufficient to render the metal salt oil-soluble, (B) at least one oil-soluble sulfurized organic compound, and (C) at least one auxiliary corrosion-inhibitor. In other embodiments, the compositions also contain (D) at least one detergent/dispersant. Lubricating oil compositions containing the compositions of the invention exhibit improved oxidation-corrosion-inhibiting properties, anti-wear properties, and/or extreme pressure properties. Such lubricating compositions containing less than about 0.1% by weight of phosphorus also exhibit good compatability with nitrile seals.

    PROCESS FOR DISTILLATION OF CRUDE ISOCYANATE CONCENTRATES
    10.
    发明专利
    PROCESS FOR DISTILLATION OF CRUDE ISOCYANATE CONCENTRATES 未知

    公开(公告)号：CA2028819A1

    公开(公告)日：1990-09-04

    申请号：CA2028819

    申请日：1990-02-21

    Applicant: LUBRIZOL CORP ,  MOBAY CORP

    Inventor： DIBIASE STEPHEN A ,  ARNDT LARRY W ,  STANSFIELD GREGORY M ,  RENBAUM LOUIS A

    IPC: C07C263/20 ,  C07C265/14

    Abstract: 2028819 9009990 PCTABS00002 A process is described for the separation and recovery of isocyanate monomers from isocyanate concentrates which leaves a residue which is liquid and burnable. The process for the separation and recovery of isocyanate monomers from isocyanate concentrates formed in the production of isocyanates and comprising a volatile isocyanate monomer and by-products comprises the steps of: (A) preparing a mixture comprising (A-1) the isocyanate concentrate; and (A-2) an oil solution comprising; (A-2-a) a major amount of hydrocarbon oil, and (A-2-b) a minor amount of at least one ashless dispersant; and (B) heating the mixture to an elevated temperature at reduced pressure whereby isocyanate monomer is distilled and recovered leaving a liquid residue. The presence of the oil solution in the mixture facilitates the distillation of the isocyanate concentrate, generally improves the yield of distilled isocyanate monomer, results in a residue which is liquid and easily removed from the distillation apparatus, and the liquid residue can generally be burned without difficulty.

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