Compound Of Indeterminate Structure, Prepared By Reacting An Organic Sulfur Compound Of Known Structure Patents (Class 508/565)
  • Detergent modification
    Patent number: 9340744
    Abstract: An overbased sulphurised calcium phenate detergent additive, made from an aldylphenol, has oxyalkylated phenolic functional groups from unreacted alkylphenol starting material.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: May 17, 2016
    Assignee: INFINEUM INTERNATIONAL LIMITED
    Inventors: Adam P. Marsh, Oliver J. Delamore, Myriam Yagoubi
  • Enhanced deposit control for lubricating oils used under sustained high load conditions employing glycerine derivative with a grafted hindered phenolic and/or a hindered phenolic containing a thioether group
    Patent number: 8680030
    Abstract: The present invention is directed to a lubricating oil for use in engines subjected to sustained severe load conditions, said lubricating oil comprising a base oil, and an additive package comprising one or more neutral/low TBN or a mixture of neutral/low TBN, and overbased/high TBN alkali or alkaline earth metal alkyl sulfonates, alkyl phenates, alkyl salicylates, an antioxidant selected from the group consisting of glycerine derivatives comprising glycerine grafted with a hindered phenol, hindered phenolic containing a thioether group, and mixtures thereof, optionally an additional conventional antioxidant and/or an organomolybdenum compound, and other additives, and to a method for enhancing the deposit formation resistance of a lubricating oil used in engines operated under sustained severe load comprising the addition to the lubricant of the aforesaid additive package.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: March 25, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Stanley James Cartwright
  • Lubricant compositions
    Patent number: 7452851
    Abstract: Lubricant compositions having improved anticorrosion performance comprising an extreme pressure compound comprising a sulfur-containing compound, an antiwear compound comprising a phosphorous-containing compound, an alkylene amine friction modifying compound, a dispersant compound containing basic nitrogen, and a diluent or base oil as applicable, wherein any of compounds other than the diluent or base oil can be the same or different compounds. These lubricant compositions provide improved anticorrosion resistance and fatigue performance, which prolongs service lives of lubricated parts, especially those used in outdoor applications.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: November 18, 2008
    Assignee: Afton Chemical Corporation
    Inventors: Mark T. Devlin, Helen T. Ryan
  • Lubricating oil composition
    Patent number: 6750183
    Abstract: Lubricating oil compositions providing superior soot dispersing characteristics, which contain a combination of a high molecular weight dispersant and a soot dispersant comprising a linked aromatic oligomer.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: June 15, 2004
    Assignee: Infineum International Ltd.
    Inventors: Antonio Gutierrez, Ricardo A. Bloch, Nancy Z. Diggs, Fredrick W. Girschick, David J. Martella, Mark G. Stevens, Jacob Emert
  • Sulfur-containing carbonate reaction products as lubricating oil antiwear additives
    Patent number: 5562851
    Abstract: This invention provides sulfur-containing carbonate reaction product additives which are useful as phosphorus-free antiwear additives in lubricating oils, particularly automatic transmission fluids.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: October 8, 1996
    Assignee: Exxon Chemical Patents Inc.
    Inventors: George W. Schriver, James S. Puckace