With Hydrocarbon Fatty Acid Or Salt Thereof, Or Complexes Of Such Salt Mixtures Patents (Class 508/522)
  • Patent number: 9347012
    Abstract: Provided is a method for preparing a grease composition, which comprises mixing an amine in a lubricating bas oil and an isocyanate in a lubricating base oil under high pressure and high flow rate impingement. In one embodiment, the mixing and reaction occurs in a reaction injection molding device. The resulting grease composition is an extremely low noise grease, being virtually clear of any urea thickener particles.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: May 24, 2016
    Assignee: Chevron U.S.A. Inc.
    Inventors: David S. Lee, Rhett W. Jones, Merdona C. Bautista
  • Patent number: 8404627
    Abstract: A detergent including one or more neutral or overbased alkaline earth metal C10 to C40 hydrocarbyl substituted hydroxybenzoates, in which: (i) the one or more neutral or overbased alkaline earth metal C10 to C40 hydrocarbyl substituted hydroxybenzoates is or includes one or more C10 to C40 hydrocarb-1-yl substituted hydroxybenzoates; or, (ii) greater than 50 mole % of the one or more neutral or overbased alkaline earth metal C10 to C40 hydrocarbyl substituted hydroxybenzoates, based on the total number of moles of said C10 to C40 hydrocarbyl substituted hydroxybenzoates, is or includes one or more C10 to C40 hydrocarb-2-yl substituted hydroxybenzoates.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: March 26, 2013
    Assignee: Infineum International Limited
    Inventors: Richard D. Bertram, Peter J. Dowding, Peter D. Watts
  • Patent number: 8399392
    Abstract: A method of reducing asphaltene precipitation or ‘black paint’ in an engine is disclosed. The method includes the step of lubricating the engine with a lubricating oil composition comprising: an oil of lubricating viscosity in a major amount; and, a salicylate detergent system in a minor amount comprising one or more neutral or overbased alkaline earth metal C22 hydrocarbyl substituted salicylates.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: March 19, 2013
    Assignee: Infineum International Limited
    Inventors: Richard D. Bertram, Peter J. Dowding, Peter D. Watts
  • Patent number: 7900590
    Abstract: Methods, a lubricant composition, and a fuel composition for lubricating a two-stroke internal combustion engine include a lubricant composition that contains (A) an oil of lubricating viscosity, (B) an additive composition, and (C) a normally liquid solvent having a kinematic viscosity of less than 5 cSt at 100° C. The lubricant composition improves the cleanliness of a power valve of a two-stroke engine.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: March 8, 2011
    Assignee: The Lubrizol Corporation
    Inventors: William K. S. Cleveland, Laimute R. Svarcas
  • Patent number: 7888520
    Abstract: The present invention relates to a process of preparing fatty alkyl esters (biodiesel), glycerin and lithium soap comprising: a) transesterifying an oil, fat or grease with a solution of lithium base in a monohydric aliphatic alcohol to produce fatty alkyl esters and a lithium alkaline glycerin; b) separating the fatty alkyl esters and the lithium alkaline glycerin and utilizing the lithium alkaline glycerin to saponify fatty alkyl compounds to produce glycerin and lithium soap; and c) optionally, separating the glycerin and lithium soaps.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: February 15, 2011
    Assignee: University of Saskatchewan
    Inventors: Martin J. T. Reaney, Dushmanthi de A. Jayasinghe
  • Patent number: 7741257
    Abstract: The passage of a container along a conveyor is lubricated by applying to the container or conveyor a mixture of a water-miscible silicone material and a water-miscible lubricant. The mixture can be applied in relatively low amounts, to provide thin, substantially non-dripping lubricating films. In contrast to dilute aqueous lubricants, the lubricants of the invention provide drier lubrication of the conveyors and containers, a cleaner conveyor line and reduced lubricant usage, thereby reducing waste, cleanup and disposal problems.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: June 22, 2010
    Assignee: Ecolab Inc.
    Inventors: Arturo S. Valencia Sil, Lawrence A. Grab, Bruce E. Schmidt, David A. Halsrud, Guang-Jong Jason Wei, Eric D. Morrison, Hector R. DiBenedetto
  • Patent number: 7635669
    Abstract: There is provided a fluid composition including at least one hydroxy-substituted carboxylic acid. Also provided are methods of inhibiting at least one of corrosion and rust and of improving at least one of lubricity and lead compatibility. Also provided are lubricating, fuel, anticorrosion, antirust, and additive concentration compositions.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: December 22, 2009
    Assignee: Afton Chemical Corportation
    Inventor: Scott Anthony Culley
  • Patent number: 7414015
    Abstract: A method for lubricating a metal workpiece during a metalworking process includes delivering supercritical carbon dioxide to the workpiece during the metalworking process. The supercritical carbon dioxide acts as a lubricant, coolant, chip evacuator, and/or carrier for another lubricant or corrosion inhibitor.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: August 19, 2008
    Assignee: The Regents of The University of Michigan
    Inventors: Steven J. Skerlos, Kim F. Hayes, Andres F. Clarens
  • Patent number: 6916768
    Abstract: The present invention relates to grease gelling agents and greases having low noise characteristics. The greases of the present invention may also exhibit good low shear stability and good heat resistance, as well as the low noise characteristics. The novel grease compositions of the present invention comprise a grease gelling agent comprises a mixture of ?80 weight percent diureas and 0.1-20 weight percent polyureas.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: July 12, 2005
    Assignee: Chevron U.S.A. Inc.
    Inventors: Carl E. Ward, Carlos E. Littlefield
  • Patent number: 6794342
    Abstract: In a grease composition which essentially comprises a base oil and a thickener, a mixture of a urea compound and lithium soap is blended as the thickener. The content of the urea compound in the thickener is preferably set to 20 to 80 wt %. As the urea compound, an alkyl group- or cyclohexyl group-terminated diurea compound, or, particularly, a diurea compound in which the diisocyanate component is 4,4′-diphenylmethane diisocyanate is preferably used. In a rolling bearing which is lubricated by the grease composition, the acoustic performance is largely improved by a synergistic action of the lithium soap and the urea compound, and simultaneously also the anti-fretting property is enhanced by an action of the urea compound.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: September 21, 2004
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Hiroshi Komiya, Atsushi Yao, Nao Ito, Youzou Taniguchi
  • Publication number: 20020183213
    Abstract: It is an object of the invention to provide a grease composition which can improve both the acoustic performance and anti-fretting property of a ball bearing, and a rolling bearing which is lubricated by such a grease composition.
    Type: Application
    Filed: March 14, 2002
    Publication date: December 5, 2002
    Inventors: Hiroshi Komiya, Atsushi Yao, Nao Ito, Youzou Taniguchi