Patents Assigned to Lubrizol Corporation
  • Viscosity modifier for lubricating oils, additive composition for lubricating oils, and lubricating oil compositions
    Patent number: 7820607
    Abstract: A viscosity modifier for lubricating oils or an additive composition for lubricating oils, which is excellent in oil-thickening properties and can provide lubricating oil compositions excellent in low-temperature characteristics and handleability at low temperatures; and lubricating oil compositions excellent in low-temperature characteristics and handleability at low temperatures.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: October 26, 2010
    Assignees: Mitsui Chemicals, Inc., The Lubrizol Corporation
    Inventors: Akihiro Matsuda, Ryousuke Kaneshige, Satoshi Ikeda, Keiji Okada
  • Quaternary Ammonium Salt Detergents for Use in Fuels
    Publication number: 20100257779
    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: Application
    Filed: June 24, 2010
    Publication date: October 14, 2010
    Applicant: The Lubrizol Corporation
    Inventors: William Barton, Mark C. Davies, David J. Moreton, Paul R. Stevenson, Dean Thetford
  • Tartaric acid derivatives as fuel economy improvers and antiwear agents in crankcase oils and preparation thereof
    Patent number: 7807611
    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 6, 2006
    Date of Patent: October 5, 2010
    Assignee: The Lubrizol Corporation
    Inventors: Jody Kocsis, Jonathan S. Vilardo, Jason R. Brown, Daniel E. Barrer, Richard J. Vickerman, Patrick E. Mosier
  • Slow release lubricant additives gel
    Patent number: 7799745
    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: Grant
    Filed: May 28, 2008
    Date of Patent: September 21, 2010
    Assignee: 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
  • Lubricant composition suitable for direct fuel injected, crankcase-scavenged two-stroke engines
    Patent number: 7795192
    Abstract: A lubricant composition suitable for lubricating a direct fuel injection two-stroke engine comprises at least one condensation product of a fatty acid with an amine or ammonia and of at least one Mannich dispersant, each in an amount of 0.5 to 8 percent by weight, along with an oil of lubricating viscosity.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: September 14, 2010
    Assignee: The Lubrizol Corporation
    Inventors: Laimute R. Svarcas, William K. S. Cleveland, John L. Petric
  • Asphaltene Inhibition
    Patent number: 7795183
    Abstract: The present invention provides a method of asphaltene control in a hydrocarbon fluid, the method employing a composition comprising: a dispersant of formulae (I) or (II), including salts thereof, wherein T or T? is hydrogen or a polymerizing terminating group; A is C16-20 alkylene or alkenylene group; B is C10-20 alkylene or alkenylene group; Z and Z? are the residue of a polyamine or polyimine; n is 2 to 50; m is 0 to 25; p and p? are 2 or more, in one embodiment not greater than 2000 and in another embodiment not greater than 1000; A? is C8-20 alkylene or alkenylene group; n? is 2 to 10; and the weight ratio of T-(O-A-CO)n (O—B—CO)m to Z or T?-(O-A?-CO)n to Z? is at least 5:1.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: September 14, 2010
    Assignee: The Lubrizol Corporation
    Inventors: Mark F. Wilkes, Mark C. Davies
  • Tartaric Acid Derivatives as Fuel Economy Improvers and Antiwear Agents in Crankcase Oils and Preparations Thereof
    Publication number: 20100227784
    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: Application
    Filed: May 17, 2010
    Publication date: September 9, 2010
    Applicant: Th Lubrizol Corporation
    Inventors: Jody Kocsis, Jonathan S. Vilardo, Jason R. Brown, Daniel E. Barrer, Richard J. Vickerman, Patrick E. Mosier
  • Dispersant viscosity modifiers containing aromatic amines
    Patent number: 7790661
    Abstract: Reaction of a carboxylic acid-containing polymer with certain aromatic amines results in dispersant viscosity modifiers with improved soot handling performance in heavy-duty diesel engines, compared with reaction with non-aromatic amines.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: September 7, 2010
    Assignee: The Lubrizol Corporation
    Inventors: Michael J. Covitch, John K. Pudelski, Christopher Friend, Matt D. Gieselman, Renee A. Eveland, Mary Galic Raguz, Barton J. Schober
  • Tartaric Acid Derivatives as Fuel Economy Improvers and Antiwear Agents in Crankcase Oils and Preparations Thereof
    Publication number: 20100222245
    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: Application
    Filed: May 17, 2010
    Publication date: September 2, 2010
    Applicant: Th Lubrizol Corporation
    Inventors: Jody Kocsis, Jonathan S. Vilardo, Jason R. Brown, Daniel E. Barrer, Richard J. Vickerman, Patrick E. Mosier
  • Polyurethane Dispersants
    Publication number: 20100216932
    Abstract: The present invention provides a non-aqueous composition containing a particulate solid, an organic medium and a polyurethane dispersant having an essentially linear backbone and laterally attached solvent-solubilising side chains of a polyester, a polyether, a polyacrylate or a polyolefin including mixtures of such side chains.
    Type: Application
    Filed: May 3, 2010
    Publication date: August 26, 2010
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Stuart Nicholas Richards, Andrew James Shooter
  • Amine Derivatives as Friction Modifiers in Lubricants
    Publication number: 20100210490
    Abstract: A composition useful for lubricating an automatic transmission comprises an oil of lubricating viscosity and a hydrocarbyl amine with a hydrocarbyl group of 12 to 22 carbon atoms and having one or two additional groups of the structure —R3—NHC(O)R4, wherein R3 is an alkylene group of 1 to 4 carbon atoms and R4 is a hydrocarbyl group of 4 to 22 carbon atoms, or a nitrogen-containing heterocyclic group, or an aminoalkyl group.
    Type: Application
    Filed: February 11, 2010
    Publication date: August 19, 2010
    Applicant: The Lubrizol Corporation
    Inventors: Richard J. Vickerman, Craig D. Tipton, Daniel J. Saccomando, Suzanne M. Patterson
  • Viscosity improver compositions providing improved low temperature characteristics to lubricating oil
    Patent number: 7776804
    Abstract: A lubricant composition comprising an oil of lubricating viscosity; (A) 0.05 to 1.5 percent by weight of a copolymer comprising 70 to 79 percent by weight of units derived from ethylene (“E”), having a Mw of 50,000 to 100,000, Mw/ Mn less than 3, density (“D”) of 860 to 896 kg/m3, and a melting point (“Tm”) of 15° C. to 60° C., wherein E and Tm fulfill the expression 3.44E?206?Tm; and (B) 0.05 to 1.5 percent by weight of a block- copolymer comprising a first block which comprises a vinyl aromatic comonomer and a second block which comprises a diene comonomer, the diene monomer-containing block being hydrogenated; wherein the weight ratio (A):(B) is 20:80 to 60:40; exhibits good low temperature performance and durability.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: August 17, 2010
    Assignee: The Lubrizol Corporation
    Inventors: Chor Huang, Lewis Breon
  • Method of lubricating an internal combustion engine and improving the efficiency of the emissions control system of the engine
    Patent number: 7772171
    Abstract: An internal combustion engine with a catalyst-containing exhaust-gas aftertreatment device is lubricated with a composition of a base oil; and a zinc salt of a mixture of phosphorus-containing compounds having hydrocarbyl groups R1 and R2 where the average total number of carbon atoms in R1 plus R2 for the mixture of phosphorus-containing compounds is at least 9.5, where 4 to 30 weight percent of such groups contain 2 to 4 carbon atoms and where in less than 8 mole percent of the phosphorus-containing molecules in the mixture of phosphorus-containing compounds each of R1 and R2 contain 2 to 4 carbon atoms.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: August 10, 2010
    Assignee: The Lubrizol Corporation
    Inventors: Saleem Al-Ahmad, Melody Wilk, Jack Kelley, John K. Pudelski, Paul E. Adams, Ewa Bardasz
  • Low ash stationary gas engine lubricant
    Patent number: 7772169
    Abstract: A low-ash, low-phosphorus lubricant composition suitable for use in a stationary gas engine includes an oil of lubricating viscosity, 1.5 to 8 percent of a succinimide dispersant, 0.8 to 4.0 percent of a hindered, ester-substituted phenol antioxidant, and at least one metal-containing sulfonate detergent or metal-containing phenate detergent, in an amount which provides 1.1 to 2.1 percent by weight of said sulfonate or phenate moieties exclusive of the weight of the metal moieties. The lubricant contains up to 0.08 percent by weight phosphorus and up to 1.25 percent sulfated ash.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: August 10, 2010
    Assignee: The Lubrizol Corporation
    Inventors: W. Preston Barnes, Virginia A. Carrick, Sara B. Pocinki, Jayram D. Patel
  • Compositions
    Patent number: 7767750
    Abstract: The present invention provides a composition containing a particulate solid, an organic medium and/or water and a compound of Formula (1) and salts thereof; wherein R is C1-50-optionally substituted hydrocarbyl; Y is C2-4-alkyleneoxy; T is C2-4 alkylene; A is the residue of a dibasic acid or anhydride thereof; Z is the residue of a polyamine and/or polyimine; W is the residue of an oxide, urea or dibasic acid or anhydride thereof; x is from 2 to 60; and v represents the maximum available number of amino and/or imino groups in Z which does not carry the group RO—(Y)x-T-NH-A-. The invention further discloses the composition as a dispersant for an organic media.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: August 3, 2010
    Assignee: The Lubrizol Corporation
    Inventor: Dean Thetford
  • Method of Lubricating an Aluminum Silicate Composite Surface with a Lubricant Comprising Ashless, Sulphur, Phosphorous Free Antiwear Agent
    Publication number: 20100190669
    Abstract: The present invention relates to a method of lubricating an aluminium-composite surface by supplying to the aluminium composite surface (typically an internal combustion engine aluminium surface) a lubricating composition comprising an oil of lubricating viscosity and an ashless antiwear agent.
    Type: Application
    Filed: May 15, 2008
    Publication date: July 29, 2010
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Mark Davies, Rodney J. McAtee
  • Rapid analysis of functional fluids
    Patent number: 7754488
    Abstract: The invention relates to a method to analyze the condition of a functional fluid comprising: (1) obtaining a sample of the used fluid; (2) placing the sample of the fluid to a test medium; (3) reacting the fluid with an indicator in the test medium; (4) analyzing visually the results of the reactor resulting in the determination of the condition of the fluid. Further an apparatus for analyzing functional fluids is disclosed in the form of a test medium consisting of an absorbent or nonabsorbent material which has been treated with a chemical indicator, marker substance or a developer or detector reagent upon which a sample of the fluid to be tested is placed. The components in the treated test medium react with components in the test fluid providing a visual indication, for example a color change, to judge the condition, the presence of a marker substance or another parameter of the fluid.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: July 13, 2010
    Assignee: The Lubrizol Corporation
    Inventors: Robert C. Richardson, Richard J. Vickerman, Mark R. Baker, Gregory D. Taylor, Gary A. Garvin
  • Titanium Compounds and Complexes as Additives in Lubricants
    Publication number: 20100173813
    Abstract: A lubricating composition comprising an oil of lubricating viscosity, 1 to 1000 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material, and at least one additional lubricant additive provides beneficial effects on properties such as deposit control, oxidation, and filterability in engine oils.
    Type: Application
    Filed: March 16, 2010
    Publication date: July 8, 2010
    Applicant: The Lubrizol Corporation
    Inventors: Jason R. Brown, Paul E. Adams, Virginia A. Carrick, Brent R. Dohner, William D. Abraham, Jonathon S. Vilardo, Richard M. Lange, Patrick E. Mosier
  • Titanium Compounds and Complexes as Additives in Lubricants
    Publication number: 20100173814
    Abstract: A lubricating composition comprising an oil of lubricating viscosity, 1 to 1000 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material, and at least one additional lubricant additive provides beneficial effects on properties such as deposit control, oxidation, and filterability in engine oils.
    Type: Application
    Filed: March 16, 2010
    Publication date: July 8, 2010
    Applicant: The Lubrizol Corporation
    Inventors: Jason R. Brown, Paul E. Adams, Virginia A. Carrick, Brent R. Dohner, William D. Abraham, Jonathan S. Vilardo, Richard M. Lange, Patrick E. Mosier
  • Tartaric Acid Derivatives as Fuel Economy Improvers and Antiwear Agents in Crankcase Oils and Preparations Thereof
    Publication number: 20100173812
    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: Application
    Filed: March 16, 2010
    Publication date: July 8, 2010
    Applicant: The Lubrizol Corporation
    Inventors: Jody Kocsis, Jonathan S. Vilardo, Jason R. Brown, Daniel E. Barrer, Richard J. Vickerman, Patrick E. Mosier