Patents Assigned to The Lubrizol Corporation
  • Publication number: 20210040412
    Abstract: A composition obtained by reacting an O,O?-dialkyldithiophosphoric acid with a hydroxyalkyl acrylate or a hydroxyalkyl methacrylate, and reacting the product thereof with a dialkylphosphite provides good antiwear protection.
    Type: Application
    Filed: October 22, 2020
    Publication date: February 11, 2021
    Applicant: The Lubrizol Corporation
    Inventors: William D. Abraham, Mahmud M. Hussain, Kurt F. Wollenberg
  • Patent number: 10913915
    Abstract: The present invention relates to a lubricating composition containing (a) an oil of lubricating viscosity; and (b) a compound selected from the group consisting of: (i) an ester-containing heterocycle; (ii) an amide-containing heterocycle; and (iii) a pyrimidine, wherein the ester-containing heterocycle and the amide-containing heterocycle have a hydrocarbyl group containing 6 to 40 carbon atoms. The invention further provides for a method of supplying an internal combustion engine with the lubricating composition.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: February 9, 2021
    Assignee: The Lubrizol Corporation
    Inventors: Patrick E. Mosier, Jason R. Brown, Matthew D. Gieselman, Calvin W. Schroeck, Seth L. Crawley, William R. S. Barton, William C. Ward, Jr.
  • Patent number: 10913910
    Abstract: The invention relates to quaternary ammonium amide and/or ester salts and their use as additives, including their use in fuels, such as diesel fuel. The invention particularly relates to the use of quaternary ammonium amide and/or ester salts as detergents in diesel fuels.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: February 9, 2021
    Assignee: The Lubrizol Corporation
    Inventors: Paul R. Stevenson, James C. Ray, David J. Moreton, James H. Bush
  • Patent number: 10907112
    Abstract: The present invention relates to industrial gear lubricating compositions that include a specific class of substituted triazoles, where the substituted triazole includes at least one hydrocarbyl group linked to one of the nitrogen atoms in the triazole ring. Such compositions provide surprisingly good seal compatibility compared to compositions with other triazoles and/or alternative additives.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: February 2, 2021
    Assignee: The Lubrizol Corporation
    Inventor: James N. Vinci
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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