中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

65 records (took 0.022 seconds)

    METHOD OF LUBRICATING AN INTERNAL COMBUSTION ENGINE
    31.
    发明专利
    METHOD OF LUBRICATING AN INTERNAL COMBUSTION ENGINE 未知

    公开(公告)号：CA2970089A1

    公开(公告)日：2015-09-17

    申请号：CA2970089

    申请日：2015-02-16

    Applicant: LUBRIZOL CORP

    Inventor： GIESELMAN MATTHEW D

    IPC: C10M133/56 ,  C10M141/12

    Abstract: The invention relates to a method of lubricating an internal combustion engine comprising supplying to the engine a lubricating composition comprising: an oil of lubricating viscosity, 2.3 wt % to 4 wt % of a dispersant package, wherein the dispersant package comprises: a borated succinimide dispersant obtainable by an "ene" reaction of a polyalkylene with an acylating agent to form an intermediate, reacting the intermediate with an aminoalcohol or amine to form a dispersant, and reacting the dispersant with a borating agent to form a borated succinimide dispersant; and a non-borated succinimide dispersant obtained by a "Diels-Alder" reaction. The ratio of non-borated succinimide dispersant to borated succinimide dispersant is 90:10 to 20:80, and the borated succinimide has 0.2 wt % to 1.3 wt % boron on an oil-free basis of the dispersant.

    LOW ASH LUBRICANTS WITH IMPROVED SEAL AND CORROSION PERFORMANCE
    32.
    发明专利
    LOW ASH LUBRICANTS WITH IMPROVED SEAL AND CORROSION PERFORMANCE 未知

    公开(公告)号：SG185622A1

    公开(公告)日：2012-12-28

    申请号：SG2012084562

    申请日：2011-05-17

    Applicant: LUBRIZOL CORP

    Inventor： GIESELMAN MATTHEW D ,  GALIC RAGUZ MARY ,  LOOP JOHN G

    Abstract: A lubricant composition of (a) an oil of lubricating viscosity; (b) a dispersan comprising the condensation product of a carboxylic functionalized polymer with an aromatic amine having at least 3 aromatic rings and at least one primary or secondary amino group; and (c) an overbased metal detergent comprising an oil -soluble neutral metal salt component and a metal carbonate component, provides good seal and corrosion performance. The total amount of neutral metal salt component in the lubricant composition is at least about 0.75 percent by weight and the sulfated ash level of the lubricant composition is less than about 1.1 percent.

    LOW ASH LUBRICANTS WITH IMPROVED SEAL AND CORROSION PERFORMANCE
    34.
    发明专利
    LOW ASH LUBRICANTS WITH IMPROVED SEAL AND CORROSION PERFORMANCE 未知

    公开(公告)号：CA2799921A1

    公开(公告)日：2011-11-24

    申请号：CA2799921

    申请日：2011-05-17

    Applicant: LUBRIZOL CORP

    Inventor： GIESELMAN MATTHEW D ,  GALIC RAGUZ MARY ,  LOOP JOHN G

    IPC: C10M141/08

    Abstract: A lubricant composition of (a) an oil of lubricating viscosity; (b) a dispersan comprising the condensation product of a carboxylic functionalized polymer with an aromatic amine having at least 3 aromatic rings and at least one primary or secondary amino group; and (c) an overbased metal detergent comprising an oil -soluble neutral metal salt component and a metal carbonate component, provides good seal and corrosion performance. The total amount of neutral metal salt component in the lubricant composition is at least about 0.75 percent by weight and the sulfated ash level of the lubricant composition is less than about 1.1 percent.

    NITROGEN-FUNCTIONALIZED OLEFIN POLYMERS FOR ENGINE LUBRICANTS
    38.
    发明专利
    NITROGEN-FUNCTIONALIZED OLEFIN POLYMERS FOR ENGINE LUBRICANTS 未知

    公开(公告)号：CA3008675A1

    公开(公告)日：2017-06-22

    申请号：CA3008675

    申请日：2016-11-17

    Applicant: LUBRIZOL CORP

    Inventor： KNAPTON DANIEL J ,  DELBRIDGE EWAN E ,  GIESELMAN MATTHEW D ,  KELLEY JACK C

    IPC: C10M167/00

    Abstract: A lubricant composition of an oil of lubricating viscosity, an ashless condensation reaction product of an olefin polymer, having a number average molecular weight of 2,000 to 70,000, comprising carboxylic acid or equivalent functionality grafted onto the polymer backbone, with a monoamine or a polyamine often having a single primary amino group; a succinimide dispersant; and an overbased metal detergent, in an amount such that the total base number of the lubricant composition is less than 6.5, exhibits good sludge prevention performance in a gasoline engine.

Patent Agency Ranking