Patents by Inventor Yanshi Zhang

Yanshi Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20170349852
    Abstract: Lubricating compositions comprising a thiol-carboxylic adduct that is the reaction product of a thiol and carboxylic acid and/or a carboxylic acid derivative. The lubricating composition also comprises an antiwear agent. Methods of lubricating an internal combustion engine comprise contacting the internal combustion engine with a lubricating composition comprising a thiol-carboxylic adduct that is the reaction product of a thiol and carboxylic acid and/or a carboxylic acid derivative. Methods of reducing lubricant oxidation and/or corrosion in an internal combustion engine with a lubricating composition comprising a thiol-carboxylic adduct that is the reaction product of a thiol and carboxylic acid and/or a carboxylic acid derivative. The use of a comprising a thiol-carboxylic adduct that is the reaction product of a thiol and carboxylic acid and/or a carboxylic acid derivative to reduce lubricant oxidation and/or corrosion in an internal combustion engine.
    Type: Application
    Filed: June 6, 2017
    Publication date: December 7, 2017
    Inventor: Yanshi Zhang
  • Publication number: 20170335227
    Abstract: The invention provides a lubricant composition containing an oil of lubricating viscosity and a boron-containing en.) compound, wherein the boron containing compound comprises a borate ester comprising at least one alkyl group having a branch at the ? position or higher. The invention further relates to a method of lubricating an internal combustion engine with the lubricant composition.
    Type: Application
    Filed: October 16, 2015
    Publication date: November 23, 2017
    Inventors: Yanshi Zhang, Mark J. McGuiness
  • Publication number: 20170283733
    Abstract: A lubricating composition includes an oil of lubricating viscosity and an oil-soluble dispersant viscosity modifier, which includes an olefin-based polymer backbone and at least one pendent functional group. Each of the at least one pendent functional group is independently attached to the olefin-based polymer backbone by a linking group. The at least one pendent functional group includes a sulfonate moiety.
    Type: Application
    Filed: September 15, 2015
    Publication date: October 5, 2017
    Inventors: Adam Preston, Yanshi Zhang, Sona S. Slocum, Matthew D. Gieselman
  • Publication number: 20170275556
    Abstract: A lubricating composition includes an oil of lubricating viscosity and an oil-soluble dispersant viscosity modifier. The dispersant viscosity modifier includes an olefin-based polymer backbone and at least one pendent group derived from a functionalized aliphatic amine. Each pendent group is independently attached to the olefin-based polymer backbone. The pendent group is non-ionic, non-basic, and non-acidic and includes a functional group which includes at least one heteroatom other than nitrogen.
    Type: Application
    Filed: September 15, 2015
    Publication date: September 28, 2017
    Inventors: Adam Preston, Yanshi Zhang, Sona S. Slocum, Matthew D. Gieselman
  • Publication number: 20170267941
    Abstract: The disclosed technology provides lubricating composition comprising: an oil of lubricating viscosity, a p-dodecyl-phenol-free detergent and an oxyalkylated hydrocarbyl phenol, wherein the oxyalkylated hydrocarbyl phenol is substituted with at least one aliphatic hydrocarbyl group of 1 to 250 carbon atoms (or 20 to 220, or 30 to 150 carbon atoms), and wherein the oxyalkylated hydrocarbyl phenol is substantially free of aromatic hydrocarbyl groups. The disclosed technology further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The disclosed technology further relates to the use of the of the lubricating composition in a passenger car internal combustion engine to improve control of at least one of the following (i) fuel economy, (ii) corrosion, (iii) cleanliness, and (iv) bore wear.
    Type: Application
    Filed: December 3, 2015
    Publication date: September 21, 2017
    Inventor: Yanshi Zhang
  • Publication number: 20170260475
    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: Application
    Filed: December 17, 2014
    Publication date: September 14, 2017
    Inventors: Yanshi Zhang, Jody A. Kocsis, Mark J. McGuiness
  • Publication number: 20170198233
    Abstract: The invention provides lubricating composition comprising: an oil of lubricating viscosity, and an oxyalkylated hydrocarbyl phenol, wherein the oxyalkylated hydrocarbyl phenol is substituted with at least one aliphatic hydrocarbyl group of 40 to 96 carbon atoms, and wherein the oxyalkylated hydrocarbyl phenol is substantially free of aromatic hydrocarbyl groups. The invention further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The invention further relates to the use of the oxyalkylated hydrocarbyl phenol in the lubricating composition to a passenger car internal combustion engine at least one of (i) control of fuel economy, (ii) control of corrosion, (iii) cleanliness, and (iv) control of bore wear.
    Type: Application
    Filed: April 8, 2014
    Publication date: July 13, 2017
    Inventors: Yanshi Zhang, Gary M. Walker, Ewan E. Delbridge, Edward P. Sampler, Neil L. Simpson
  • Patent number: 9663744
    Abstract: The invention provides a dispersant viscosity modifier, and more specifically a metal free dispersant viscosity modifier. The invention provides compositions, including lubricating compositions containing the described dispersant viscosity modifier, such as heavy duty diesel lubricating compositions. The invention further relates to the use of the described dispersant viscosity modifier to improve the film thickness and/or antiwear performance of a lubricating composition, for example, a heavy duty diesel lubricating composition. The improved dispersant viscosity modifier of the invention is specially designed to protect against valve train and other crankcase wear in lubricating applications, including heavy soot conditions such as heavy duty diesel lubricating applications.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: May 30, 2017
    Assignee: The Lubrizol Corporation
    Inventors: Yanshi Zhang, Matthew D. Gieselman, Adam J. Preston
  • Publication number: 20170081609
    Abstract: The disclosed technology relates to hydroxy functionalized ashless additives useful in engine oil compositions due to their ability to reduce deposits, particularly deposits seen in turbocharged direct injection (TDI) engines. The described additives include ashless saturated compounds having a long chain hydrocarbyl polymer terminated by a hydroxyl group. The disclosed technology also relates to lubricant compositions containing the described additives, processes of making the described additives, and methods of using the described additives.
    Type: Application
    Filed: May 18, 2015
    Publication date: March 23, 2017
    Inventor: Yanshi Zhang
  • Patent number: 9481848
    Abstract: The present invention provides a compound comprising the reaction product of a hydrcarbyl substituted amine with an itaconate, such as an N-substituted 4-carboxypyrrolidin-2-one, and methods of employing the same in lubricating compositions. The lubricating compositions containing the N-substituted 4-carboxypyrrolidin-2-one are preferably intended to be employed in a method for lubricating a mechanical device, such as an automatic or manual transmission. However, it is envisioned that the compound can be employed in engine oil lubricants and any other type of functional fluid.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: November 1, 2016
    Assignee: The Lubrizol Corporation
    Inventors: Daniel J. Saccomando, Richard J. Vickerman, Yanshi Zhang
  • Publication number: 20160298051
    Abstract: The present invention provides a compound comprising the reaction product of a hydrcarbyl substituted amine with an itaconate, such as an N-substituted 4-carboxypyrrolidin-2-one, and methods of employing the same in lubricating compositions. The lubricating compositions containing the N-substituted 4-carboxypyrrolidin-2-one are preferably intended to be employed in a method for lubricating a mechanical device, such as an automatic or manual transmission. However, it is envisioned that the compound can be employed in engine oil lubricants and any other type of functional fluid.
    Type: Application
    Filed: June 16, 2016
    Publication date: October 13, 2016
    Inventors: Daniel J. Saccomando, Richard J. Vickerman, Yanshi Zhang
  • Publication number: 20160208189
    Abstract: The invention provides a process to prepare a detergent in the presence of a polyether compound. The invention further provides for a lubricating composition containing the detergent. The invention further relates to the use of the lubricating composition in a mechanical device such as an internal combustion engine.
    Type: Application
    Filed: August 11, 2014
    Publication date: July 21, 2016
    Inventors: Gary M. Walker, Ewan E. Delbridge, Yanshi Zhang, Edward P. Sampler, Stephen J. Cook, Christopher L. Friend, Mohamed G. Fahmy
  • Publication number: 20160115418
    Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity and a N-acylated aromatic amine compound. The invention further relates to methods of lubricating an internal combustion engine by supplying the described lubricating composition to the internal combustion engine. The invention further relates to the use of the N-acylated aromatic amine compound as a TBN booster.
    Type: Application
    Filed: May 21, 2014
    Publication date: April 28, 2016
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Danielle N. Ivancic, Ewan E. Delbridge, Yanshi Zhang, Scott Capitosti, Christopher L. Friend
  • Publication number: 20160024420
    Abstract: The invention provides a lubricating composition comprising: an oil of lubricating viscosity and a reaction product of a monovalent to tetravalent inorganic Lewis acid and a hydroxyl terminated polyether (or glycol), wherein the mole ratio of hydroxyl terminated polyether (or glycol) to Lewis acid is 1:1 or greater. The invention further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition.
    Type: Application
    Filed: March 5, 2014
    Publication date: January 28, 2016
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Ewan E. DELBRIDGE, Yanshi ZHANG, Jody A. KOCSIS
  • Publication number: 20160002561
    Abstract: The invention provides a dispersant viscosity modifier, and more specifically a metal free dispersant viscosity modifier. The invention provides compositions, including lubricating compositions containing the described dispersant viscosity modifier, such as heavy duty diesel lubricating compositions. The invention further relates to the use of the described dispersant viscosity modifier to improve the film thickness and/or antiwear performance of a lubricating composition, for example, a heavy duty diesel lubricating composition. The improved dispersant viscosity modifier of the invention is specially designed to protect against valve train and other crankcase wear in lubricating applications, including heavy soot conditions such as heavy duty diesel lubricating applications.
    Type: Application
    Filed: February 14, 2014
    Publication date: January 7, 2016
    Inventors: Yanshi ZHANG, Matthew D. GIESELMAN, Adam J. PRESTON
  • Patent number: 9187590
    Abstract: The present invention relates to hydrolytically stable multi-purpose polymers that are polymerized from a monomer mixture comprising: at least one amino-substituted meth(acrylate) (ASMA) monomer or salt thereof; and at least one nonionic vinyl (NIV) monomer, wherein the monomer mixture optionally comprises one or more of at least one vinyl associative (VA) monomer; at least one vinyl surfactant (VS) monomer; and/or at least one polymerizable silicone macromer (PSM) and wherein the monomer mixture further optionally comprises one or more of at least one crosslinking (XL) monomer; at least one chain transfer agent (CTA); and/or at least one polymeric stabilizer. The multi-purpose polymers of the present invention can also be prepared from monomer mixtures containing chain transfer agents or other functional components commonly utilized in polymerization process.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: November 17, 2015
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Krishnan Tamareselvy, Yanshi Zhang, Deborah S. Filla
  • Publication number: 20150307803
    Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity and an alkylene-coupled phenol compound for use in engines operated with biodiesel fuels or fuel blends containing biodiesel components. The invention further relates to methods of lubricating an internal combustion engine fueled with biodiesel by supplying the described lubricating composition to the internal combustion engine. The invention further relates to the use of the alkylene-coupled phenol compound to reduce corrosion and oxidative instability resulting from biodiesel introduction into the lubricant.
    Type: Application
    Filed: October 31, 2013
    Publication date: October 29, 2015
    Applicant: THE LUBRIZOL CORPORATION
    Inventor: Yanshi Zhang
  • Patent number: 8766011
    Abstract: The present invention relates to a method for synthesizing amonoalcohols (e.g., aminoalcohols that contain an amine group that is either unsubstituted, mono-substituted, or di-substituted) and to the products formed therefrom. In one embodiment, the present invention relates to a method for synthesizing aminoalcohols from a corresponding aminoaldehyde and to the products formed therefrom. In another embodiment, the present invention relates to a method for synthesizing aminoalcohols from a corresponding aminoaldehyde via a hydrogenation process using a suitable catalyst (e.g., Raney® Nickel) and to the products formed therefrom. In still another embodiment, the present invention relates to aminoalcohols formed via direct hydrogenation from a corresponding aminoaldehyde without the intervening step of converting the aminoaldehyde starting material to a salt.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: July 1, 2014
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Yanshi Zhang, Krishnan Tamareselvy
  • Publication number: 20140162920
    Abstract: The present invention provides a compound comprising the reaction product of a hydrcarbyl substituted amine with an itaconate, such as an N-substituted 4-carboxypyrrolidin-2-one, and methods of employing the same in lubricating compositions. The lubricating compositions containing the N-substituted 4-carboxypyrrolidin-2-one are preferably intended to be employed in a method for lubricating a mechanical device, such as an automatic or manual transmission. However, it is envisioned that the compound can be employed in engine oil lubricants and any other type of functional fluid.
    Type: Application
    Filed: July 19, 2012
    Publication date: June 12, 2014
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Daniel J. Saccomando, Richard J. Vickerman, Yanshi Zhang
  • Publication number: 20140045737
    Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity and an ashless thiocarbamate compound having an optionally-substituted hydrocarbyl group on an S-atom and an optionally-substituted hydrocarbyl group on an N-atom. The invention further relates to a method of the lubricating an internal combustion engine with the lubricating composition.
    Type: Application
    Filed: March 7, 2012
    Publication date: February 13, 2014
    Inventors: Yanshi Zhang, Seth L. Crawley, Richard Yodice