Patents Assigned to The Lubrizol Corporation
  • LUBRICANT COMPOSITIONS FOR HIGH EFFICIENCY ENGINES
    Publication number: 20210002577
    Abstract: The instant disclosure is directed to a method of lubricating a sump-lubricated, high efficiency, gasoline-fueled internal combustion engine. Said method involves supplying to the engine a lubricating composition comprising an oil of lubricating viscosity, an anti-wear agent, an ashless antioxidant, a metal-containing detergent, an ashless polyolefin dispersant, and (f) a polymeric viscosity modifier. The disclosure further provides a method of operating a high efficiency sump-lubricated gasoline-fueled internal combustion engine while maintaining or improving at least one of durability, deposit control, oxidation control, fuel economy, and resistance to knock and stochastic pre-ignition.
    Type: Application
    Filed: November 28, 2018
    Publication date: January 7, 2021
    Applicant: The Lubrizol Corporation
    Inventors: Patrick E. Mosier, Matthew D. Gieselman, George S. Szappanos, Alexander Sammut, Ewan E. Delbridge, Oliver Smith
  • BORON CONTAINING AUTOMOTIVE GEAR OIL
    Publication number: 20200369978
    Abstract: The disclosed technology relates to an automotive gear oil, which may be used, for example, in heavy duty manual transmissions and axles, and includes an oil of lubricating viscosity, 1 wt % or less of a dispersant, and at least one boron containing compound.
    Type: Application
    Filed: January 2, 2019
    Publication date: November 26, 2020
    Applicant: The Lubrizol Corporation
    Inventor: Tomoya Higuchi
  • Hindered Amine Terminated Succinimide Dispersants And Lubricating Compositions Containing Same
    Publication number: 20200369974
    Abstract: The disclosed technology relates to a dispersant composition comprising the reaction product of a polyolefin acylating agent and a polyamine having a sterically hindered head group. In addition, the technology relates to lubricating compositions containing the dispersant composition and an oil of lubricating viscosity, as well as methods of employing the lubricating composition in an engine and engine oils. Lubricating oils containing the dispersants of the disclosed technology simultaneously achieves seal compatibility, wear, deposit, varnish and corrosion control while also maintaining fuel economy performance over a broad temperature range.
    Type: Application
    Filed: November 29, 2018
    Publication date: November 26, 2020
    Applicant: The Lubrizol Corporation
    Inventors: Dixit Parmar, Joanne L. Jones, Daniel J. Saccomando, Nicolas Proust, Patrick E. Mosier
  • Lubricant compositions for direct injection engine
    Patent number: 10800992
    Abstract: The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and a boron-containing ashless dispersant. The ashless dispersant may be selected from succinimide compounds prepared from aliphatic or aromatic amines.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: October 13, 2020
    Assignee: The Lubrizol Corporation
    Inventors: Patrick E. Mosier, Jeffry G. Dietz, Alexander Sammut, Mary Galic Raguz, Matthew D. Gieselman
  • HYDRAULIC FLUID COMPOSITION
    Publication number: 20200318028
    Abstract: A hydraulic fluid includes an oil of lubricating viscosity and at least 2 wt. % of an ester of a carboxy group-containing interpolymer comprising units derived from a vinyl aromatic monomer and units derived from a carboxylic acid monomer. The interpolymer also contains nitrogen functionality. The hydraulic fluid is at least substantially free of polyacrylates and polymethacrylates.
    Type: Application
    Filed: April 19, 2017
    Publication date: October 8, 2020
    Applicant: The Lubrizol Corporation
    Inventors: Daniel J. Knapton, David Cressey, Daniel C. Visger
  • Mixed phosphorus esters for lubricant applications
    Patent number: 10793802
    Abstract: A lubricant composition of an oil of lubricating viscosity and a phosphite ester reaction product of a monomeric phosphorous acid or an ester thereof with a first alkylene diol having two hydroxy groups in a 1,4 or 1,5 or 1,6 relationship and a second, alkyl-substituted, diol being a substituted 1,3-propylene diol, exhibits good wear and frictional performance.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: October 6, 2020
    Assignee: The Lubrizol Corporation
    Inventors: William D. Abraham, Nga H. Nguyen, Paul E. Adams, Kurt F. Wollenberg
  • Lubricating composition for lead and copper corrosion inhibition
    Patent number: 10787622
    Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity, an ashless thiocarbamate compound having an optionally-substituted hydrocarbyl group on an S-atom and an optionally-substituted hydrocarbyl group on an N-atom, and a boron-containing compound. The invention further relates to a method of lubricating an internal combustion engine with the lubricating composition.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: September 29, 2020
    Assignee: The Lubrizol Corporation
    Inventors: Yanshi Zhang, Jody A. Kocsis, Mark J. McGuiness
  • Composition for cleaning gasoline engine fuel delivery systems, air intake systems, and combustion chambers
    Patent number: 10781411
    Abstract: A cleaning composition, which is suitable for cleaning fuel delivery systems, air-intake systems, intake valves, and combustion chambers, includes at least 3 wt. % of a polyether component, at least 5 wt. % of a polar solvent, and at least 5 wt. % a non-polar solvent. The polyether component is selected from polyethers, polyetheramines, and mixtures thereof.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: September 22, 2020
    Assignee: The Lubrizol Corporation
    Inventors: Stuart L. Bartley, Thomas R. Weyenberg, Michael D. Nicholls, Garrett Parker
  • Synergistic rust inhibitor combination for lubricating grease
    Patent number: 10774285
    Abstract: The disclosed technology relates to an additive composition and lubricating grease composition containing a synergistic combination of ingredients for inhibiting rust, particularly rust on mechanical devices subject to contact with salt water.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 15, 2020
    Assignee: THE LUBRIZOL CORPORATION
    Inventor: Scott Capitosti
  • Aliphatic tetrahedral borate compounds for fully formulated lubricating compositions
    Patent number: 10774283
    Abstract: A fully-formulating lubricating composition comprising an oil of lubricating viscosity; an ionic tetrahedral borate compound including a tetrahedral borate anion having a boron atom with two bidentate di-oxo ligands both being a linear C18-tartrimide; a first dispersant comprising a conventional ammonium substituted polyisobutenyl succinimide compound having a polyisobutenyl number average molecular weight of 750 to 2,500; a second dispersant comprising an ammonium substituted polyisobutenyl succinimde compound having an N:CO ratio of 1.8 and a polyisobutylenyl number average molecular weight of 750 to 2,500, wherein one or more of the first dispersant and the second dispersant are in cationic form. The fully formulated lubricating composition including one or more performance additives.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: September 15, 2020
    Assignee: The Lubrizol Corporation
    Inventors: James D. Burrington, Ewan E. Delbridge, Binbin Guo, Jason J. Hanthorn
  • SULFURIZED CATECHOLATE DETERGENTS FOR LUBRICATING COMPOSITIONS
    Publication number: 20200283694
    Abstract: A lubricating composition includes a sulfurized oxy-substituted aromatic polyol compound and an oil of lubricating viscosity. The sulfurized oxy-substituted aromatic polyol compound includes at least one of a sulfurized oxy-substituted aromatic polyol and a salt of a sulfurized oxy-substituted aromatic polyol. The compound is suitable as a replacement for detergents that contain Cn alkyl phenols derived from oligomers of propylene.
    Type: Application
    Filed: December 7, 2016
    Publication date: September 10, 2020
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Kamalakumari K. Salem, Gary M. Walker, Ewan E. Delbridge, David J. Moreton, Adam Cox, W. Preston Bames, James P. Roski, Mohamed G. Fahmy
  • Protected mercaptophenols and thiophenols for lubricating compositions
    Patent number: 10767133
    Abstract: A lubricating composition includes an oil of lubricating viscosity and a compound comprising a protected mercaptophenol. The protected mercaptophenol includes a mercapto group in which the hydrogen is substituted with a substituent of at least 5 carbons. The substituent is selected from hydroxy-substituted hydrocarbyl groups, poly(ether) groups, hydrocarbyl groups, and mixtures and salts thereof.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: September 8, 2020
    Assignee: The Lubrizol Corporation
    Inventor: Robert D. Dura
  • Marine diesel lubricating composition
    Patent number: 10745638
    Abstract: The invention provides a method of lubricating a 2-stroke marine diesel cylinder liner with a lubricating composition having a total base number of 10 to 25 mg KOH/g. The invention further provides a lubricating composition for lubricating the 2-stroke marine diesel cylinder liner.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: August 18, 2020
    Assignee: The Lubrizol Corporation
    Inventors: Stephen J. Cook, Natasha K. Horn, Shaun P. Carney, Mark C. Davies, David M. Hobson
  • Zinc-free lubricating composition
    Patent number: 10738263
    Abstract: The invention is directed to a zinc-free lubricating composition for an internal combustion engine containing a phosphorus anti-wear agent, an ashless antioxidant, and an oxyalkylated phenol compound. The lubricating composition provides wear protection, deposit control, and improved acid control with reduced levels of metal-containing additives.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: August 11, 2020
    Assignee: The Lubrizol Corporation
    Inventors: Michael R. Sutton, Paul R. Vincent
  • LUBRICATING COMPOSITION FOR A HYBRID ELECTRIC VEHICLE TRANSMISSION
    Publication number: 20200216774
    Abstract: The disclosed technology relates to a lubricant composition for use in an automatic transmission of a hybrid electric vehicle, containing an oil of lubricating viscosity, at least one borate ester, and at least one phosphorus containing compound.
    Type: Application
    Filed: August 10, 2018
    Publication date: July 9, 2020
    Applicant: The Lubrizol Corporation
    Inventors: William D. Abraham, Masafumi Tsubosaka
  • Lubricating composition containing an antiwear agent
    Patent number: 10704006
    Abstract: The invention provides a lubricating composition containing an antiwear agent and an oil of lubricating viscosity. The invention further relates to the use of the lubricating composition in an internal combustion engine, or a driveline device.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: July 7, 2020
    Assignee: The Lubrizol Corporation
    Inventors: William R. S. Barton, Mark C. Davies, Michael R. Sutton, Matthew D. Gieselman, Christopher L. Friend, Ewan E. Delbridge, Patrick E. Mosier
  • Low Zinc Lubricant Composition
    Publication number: 20200208074
    Abstract: The disclosed technology relates to lubricants for compression ignition internal combustion engines, particularly those demonstrating at least one of improved seals performance, reduced deposit formation, and excellent durability. The present invention provides a low zinc lubricating composition comprising (a) an oil of lubricating viscosity, (b) a borated dispersant, and (c) a metal-free organo-phosphorus anti-wear additive, wherein the lubricating composition is substantially free of a metal containing sulfur coupled alkyl phenol compound. Further, the low zinc lubricating composition contains zinc in an amount less than 600 ppm by weight of the composition.
    Type: Application
    Filed: July 17, 2018
    Publication date: July 2, 2020
    Applicant: The Lubrizol Corporation
    Inventors: Joanne L. Jones, Mark C. Davies, Michael R. Sutton, Patrick E. Mosier
  • Low Disperant Lubricant Composition
    Publication number: 20200199479
    Abstract: The disclosed technology relates to lubricants for compression ignition internal combustion engines, particularly those demonstrating at least one of improved seals performance, reduced deposit formation, and excellent durability. The present invention provides a low dispersant lubricating composition comprising (a) an oil of lubricating viscosity, (b) about 0.5 weight percent to 3.0 weight percent of an oxyalkylated hydrocarbyl-substituted phenol compound, (c) about 0.01 weight percent to 2.6 weight percent of a polyalkenylsuccinimide dispersant, and (d) about 0.05 weight percent to 2.0 weight percent of a polyolefin dispersant viscosity modifier, and wherein the lubricating composition contains zinc in an amount less than about 700 ppm by weight of the composition.
    Type: Application
    Filed: July 17, 2018
    Publication date: June 25, 2020
    Applicant: The Lubrizol Corporation
    Inventors: Joanne L. Jones, Yanshi Zhang
  • Diesel detergent without a low molecular weight penalty
    Patent number: 10669496
    Abstract: The composition of the present invention related to a quaternary ammonium salt detergent and the use of such quaternary ammonium salt detergents in a fuel composition to reduce diesel injector deposits and remove or clean up existing deposits on the diesel injectors.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: June 2, 2020
    Assignee: The Lubrizol Corporation
    Inventors: James H. Bush, Robert H. Barbour, David J. Moreton, Hannah Greenfield, Paul R. Stevenson, David C. Arters
  • Lubricant compositions for direct injection engines
    Patent number: 10669505
    Abstract: The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and an overbased sodium detergent. The metal overbased detergent may be selected from sulfonate detergents, phenate detergents, and salicylate detergents, including sulfonate detergents with a metal ratio of at least 5.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: June 2, 2020
    Assignee: THE LUBRIZOL CORPORATION
    Inventors: Patrick E. Mosier, Jeffry G. Dietz, Alexander Sammut