Patents Assigned to Lubrizol Corporation
  • Quaternary ammonium salt detergents for use in lubricating compositions
    Patent number: 8153570
    Abstract: A quaternary ammonium salt detergent made from the reaction product of the reaction of: (a) a hydrocarbyl substituted acylating agent and a compound having an oxygen or nitrogen atom capable of condensing with said acylating agent and further having a tertiary amino group; and (b) a quaternizing agent suitable for converting the tertiary amino group to a quaternary nitrogen and the use of such quaternary ammonium salt detergents in a lubricating composition.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: April 10, 2012
    Assignee: The Lubrizol Corporation
    Inventors: William Barton, Mark C. Davies, David J. Moreton, Paul R. Stevenson, Dean Thetford
  • Product of amines with hydroxy acid as friction modifiers suitable for automatic transmission fluids
    Patent number: 8148306
    Abstract: Compositions comprising an oil of lubricating viscosity; an amide represented by the formula R1R2N—C(O)R3 wherein R1 and R2 are hydrocarbyl groups of at least 6 carbon atoms and R3 is a hydroxyalkyl group of 1 to 6 carbon atoms or a group formed by the condensation of said hydroxyalkyl group, through a hydroxyl group thereof, with an acylating agent; a nitrogen-containing dispersant; and a phosphorus-containing compound are suitable for lubricating a transmission.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: April 3, 2012
    Assignee: The Lubrizol Corporation
    Inventors: Stuart L. Bartley, Shreyasi Lahiri, Mark R. Baker, Craig D. Tipton
  • Tartaric acid derivatives as fuel economy improvers and antiwear agents in crankcase oils and preparations thereof
    Patent number: 8148307
    Abstract: Formulations using tartaric compounds of the present invention in a low sulfur, low ash and low phosphorous lubricant lower wear, and friction and improves fuel economy.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: April 3, 2012
    Assignee: The Lubrizol Corporation
    Inventors: Jody Kocsis, Jonathan S. Vilardo, Jason R. Brown, Daniel E. Barrer, Richard J. Vickerman, Patrick E. Mosier
  • Quaternary ammonium salt detergents for use in fuels
    Patent number: 8147569
    Abstract: A quaternary ammonium salt detergent made from the reaction product of the reaction of: (a) a hydrocarbyl substituted acylating agent and a compound having an oxygen or nitrogen atom capable of condensing with said acylating agent and further having a tertiary amino group; and (b) a quaternizing agent suitable for converting the tertiary amino group to a quaternary nitrogen and the use of such quaternary ammonium salt detergents in a fuel composition to reduce intake valve deposits.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: April 3, 2012
    Assignee: The Lubrizol Corporation
    Inventors: William R. S. Barton, Mark C. Davies, David J. Moreton
  • Slow Release Lubricant Additives Gel
    Publication number: 20120067798
    Abstract: A lubricant additive gel formed by the gellation of two or more lubricant additives for the slow release of the additive components into a fluid. The lubricant additive gel slowly releases into its component lubricant additives when contacted with the fluid such as an oil thereby serving as a lubricant fluid such as an oil thereby.
    Type: Application
    Filed: October 31, 2011
    Publication date: March 22, 2012
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: James D. Burrington, Bruce H. Grasser, Herman F. George, John R. Martin, John K. Pudelski, James P. Roski, Barbara L. Soukup, Melinda E. Bartlett
  • Compounds and a Method of Lubricating an Internal Combustion Engine
    Publication number: 20120065110
    Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity and a product obtainable from a 1,4-conjugate addition of an aminocarboxylic acid to an activated olefin. The invention further relates to a method of lubricating an internal combustion engine by lubricating the engine with the lubricating composition. The invention further relates to the use of the product disclosed herein as a lead corrosion inhibitor.
    Type: Application
    Filed: February 8, 2010
    Publication date: March 15, 2012
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Jody A. Kocsis, Matthew D. Gieseiman, Seth L. Crawley, Douglas M Barr
  • Tartaric acid derivatives in fuel compositions
    Patent number: 8133290
    Abstract: Formulations using tartaric compounds of the present invention in a low sulfur, low ash and low phosphorous lubricant lower wear, and friction and improves fuel economy.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: March 13, 2012
    Assignee: The Lubrizol Corporation
    Inventors: Jody Kocsis, Jonathan S. Vilardo, Jason R. Brown, Daniel E. Barrer, Richard J. Vickerman, Patrick E. Mosier
  • Lubricating Composition Containing a Carboxylic Functionalised Polymer and Dispersant
    Publication number: 20120046206
    Abstract: The invention provides an oil of lubricating viscosity, a dispersant and an amine-functionalised additive, wherein the amine-functionalised additive is derived from an amine having at least 3 or 4 aromatic groups. The invention further relates to the use of the lubricating composition in an internal combustion engine.
    Type: Application
    Filed: February 24, 2010
    Publication date: February 23, 2012
    Applicant: The Lubrizol Corporation
    Inventors: Matthew D. Gieselman, John K. Pudeiski, Mary Galic Raguz, Thomas Derevjanik
  • Anthranilic Esters as Additives in Lubricants
    Publication number: 20120040876
    Abstract: This invention relates to anthranilate esters and their use in lubricants, such as engine oils. The invention particularly relates to compositions that deliver an ash-free base to a lubricant in the form of a basic amine additive, without adversely impacting seal compatibility and/or degradation, and methods thereof.
    Type: Application
    Filed: March 17, 2010
    Publication date: February 16, 2012
    Applicant: The Lubrizol Corporation
    Inventors: Adam J. Preston, Matthew D. Gieselman, Virginia A. Carrick
  • Lubricant additive composition suitable for lubricating, preventing deposit formation, or clean-up of two-stroke engines
    Patent number: 8110531
    Abstract: A lubricant composition with a total nitrogen content of 0.1 to 0.25 percent by weight suitable for lubricating a two-stroke engine comprising an oil of lubricating viscosity, a synthetic ester, at least one condensation product of a fatty acid having 12 to 24 carbon atoms with a polyamine, and a Mannich dispersant.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: February 7, 2012
    Assignee: The Lubrizol Corporation
    Inventors: Laimute R. Svarcas, Michael S. Brenner, Thomas A. Nau
  • Method for Improved Performance of a Functional Fluid
    Publication number: 20120018001
    Abstract: In accordance with the invention, it has been discovered that the performance of a functional fluid, such as a lubricant, can be improved by following a method of operating a functional fluid using device, such as an engine, comprising: supplying to the device a functional fluid composition comprising an additive package; operating the device containing the functional fluid composition; and adding to the functional fluid composition, during the operation of the device, a supplemental additive package; resulting in a performance improvement of the functional fluid composition during its service life and/or an extension of the functional fluid composition's service life, and so an improvement in the performance of the device.
    Type: Application
    Filed: January 28, 2010
    Publication date: January 26, 2012
    Applicant: The Lubrizol Corporation
    Inventors: James D. Burrington, Jack C. Kelley, Lewis A. Williams, William D. Abraham
  • Oxalic Acid Bis-Amides or Amide-Ester as Friction Modifiers in Lubricants
    Publication number: 20120021958
    Abstract: A composition is provided suitable for use as a friction modifier for an automatic transmission, comprising an N-substituted oxalic acid bisamide or amide-ester containing at least two hydrocarbyl groups of 12 to 22 carbon atoms.
    Type: Application
    Filed: February 11, 2010
    Publication date: January 26, 2012
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Richard J. Vickerman, Daniel J. Saccomando
  • Composition Containing Ester Compounds and a Method of Lubricating an Internal Combustion Engine
    Publication number: 20120021956
    Abstract: The invention provides a lubricating composition containing a ?-amino compound. The invention further relates to a method of lubricating an internal combustion engine by lubricating the engine with the lubricating composition. The invention further relates to the use of the ?-amino carbonyl compound as copper corrosion inhibitors, friction control agents, antiwear and/or extreme pressure agents.
    Type: Application
    Filed: February 5, 2010
    Publication date: January 26, 2012
    Applicant: The Lubrizol Corporation
    Inventors: Matthew D. Gieselman, Jody A. Kocsis
  • Engine lubricant for improved fuel economy
    Patent number: 8093191
    Abstract: A lubricant composition comprising an oil of lubricating viscosity, an amino-functionalized acrylic or methacrylic-containing polymer, comprising about 2 percent to about 8 percent by weight of an amine moiety bearing a tertiary amino group, attached to said polymer through an ester, amide, or imide linkage; and a nitrogen-containing dispersant, provides reduced friction to an internal combustion engine and improved fuel economy.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: January 10, 2012
    Assignee: The Lubrizol Corporation
    Inventors: Mohamed G. Fahmy, Daniel C. Visger, Barton J. Schober, Brent R. Dohner, Patrick E. Moster, Jody A. Kocsis, Isao Nakagawa
  • Quaternary ammonium salt of a mannich compound
    Patent number: 8083814
    Abstract: A quaternary ammonium salt detergent made from the reaction product of the reaction of: (a) Mannich reaction product having a tertiary amino group, said Mannich reaction product being prepared from the reaction of a hydrocarbyl-substituted phenol, an aldehyde, and amine; and (b) a quaternizing agent suitable for converting the tertiary amino group to a quaternary nitrogen and the use of such quaternary ammonium salt detergents in a fuel composition to reduce intake valve deposits.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: December 27, 2011
    Assignee: The Lubrizol Corporation
    Inventors: Paul R. Stevenson, Dean Thetford, Jonathan S. Vilardo
  • Lubricating Composition Containing a Functionalised Carboxylic Polymer
    Publication number: 20110306528
    Abstract: The invention provides a lubricating composition comprising an oil of lubricating viscosity and an amine-functionalised additive, wherein the amine-functionalised additive is derived from an amine having at least 3 aromatic groups, at least one —NH2 functional group, and at least 2 secondary or tertiary amino groups. The invention further provides for the additive to have dispersant and/or dispersant viscosity modifying properties. The lubricating composition is suitable for lubricating an internal combustion engine.
    Type: Application
    Filed: November 23, 2009
    Publication date: December 15, 2011
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Matthew D. Gieselman, Adam J. Preston
  • Star Polymer Lubricating Composition
    Publication number: 20110306529
    Abstract: The invention provides a lubricating composition containing (a) 0.001 to 15 wt % of a polymer with (i) a weight average molecular weight of 50,000 to 1,000,000; and (ii) a shear stability index of 10 to 100; (b) an antiwear agent; (c) a corrosion inhibitor; and (d) an oil of lubricating viscosity. The invention further provides a method for lubricating a mechanical device with the lubricating composition.
    Type: Application
    Filed: April 19, 2007
    Publication date: December 15, 2011
    Applicant: The Lubrizol Corporation
    Inventors: Barton J. Schober, Allan Barber, Marina Baum
  • Dispersants
    Patent number: 8076378
    Abstract: A dispersant comprising a polyester chain obtainable by polymerising a hydroxy carboxylic acid or lactone thereof such as ?-caprolactone with a cyclic alkylene carbonate such as 5,5-dimethyltrimethylene carbonate. The dispersant may be in the form of a phosphate ester where the polyester chain is reacted with a phosphating agent such as polyphosphoric acid or the polyester chain may be attached to a polyamine or polyimine such as polyethyleneimine.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: December 13, 2011
    Assignee: The Lubrizol Corporation
    Inventor: Dean Thetford
  • Method of Operating an Engine Using an Ashless Consumable Lubricant
    Publication number: 20110297122
    Abstract: The present invention relates to methods of using a low sulfur, low phosphorus, low-ash, zinc free consumable lubricating composition in an internal combustion engine equipped with a pilot ignition system, where the composition comprises: an oil of lubricating viscosity; a high TBN succinimide dispersant and where the lubricant composition overall has a sulfated ash value of up to about 0.2, a phosphorus content of up to about 50 to about 800 ppm and a sulfur content of up to about 0.4 percent by weight.
    Type: Application
    Filed: December 3, 2009
    Publication date: December 8, 2011
    Applicant: THE LUBRIZOL CORPORATION
    Inventor: Ewa A. Bardasz
  • Optically Active Functional Fluid Markers
    Publication number: 20110299081
    Abstract: The present invention relates to a method of identifying in a fluid by measuring the amount of optical rotation the fluid causes in a beam of polarized light. The invention further provides for the use of an optional optically active marker in the fluids in order the impact the amount of rotation the fluid will cause. The invention provides a convenient and reliable means for identifying the fluid before, during and/or after the fluid's use.
    Type: Application
    Filed: December 10, 2009
    Publication date: December 8, 2011
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: John S. Manka, Ying Wang