Patents by Inventor Rajiv R. Taribagil

Rajiv R. Taribagil 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).

  • Viscosity index improver concentrates
    Patent number: 10731100
    Abstract: A viscosity index improver containing, in non-ester diluent oil, one or more hydrogenated, functionalized linear block copolymers having at least one block derived from monoalkenyl arene covalently linked to at least one block derived from diene in an amount that is greater than the critical overlap concentration (ch*), in mass %, for the linear block copolymers in the diluent oil; and an amount of ester base stock.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: August 4, 2020
    Assignee: INFINEUM INTERNATIONAL LIMITED
    Inventors: Rajiv R. Taribagil, Stuart A. Taylor, Stuart Briggs, Laurent Chambard
  • Viscosity Index Improver Concentrates
    Publication number: 20180251701
    Abstract: A viscosity index improver containing, in non-ester diluent oil, one or more hydrogenated, functionalized linear block copolymers having at least one block derived from monoalkenyl arene covalently linked to at least one block derived from diene in an amount that is greater than the critical overlap concentration (ch*), in mass %, for the linear block copolymers in the diluent oil; and an amount of ester base stock.
    Type: Application
    Filed: May 4, 2018
    Publication date: September 6, 2018
    Inventors: Rajiv R. Taribagil, Stuart A. Taylor, Stuart Briggs, Laurent Chambard
  • Viscosity index improver concentrates
    Patent number: 10011803
    Abstract: A viscosity index improver containing, in diluent oil, one or more optionally functionalized linear block copolymers having at least one block derived from alkenyl arene covalently linked to at least one block derived from diene in an amount that is greater than the critical overlap concentration (ch*), in mass %, for the linear block copolymers in the diluent oil; and ester base stock and/or at least one star (or radial) polymer, the star polymer being present in an amount such that the c/ch* value of the star polymer in the concentrate falls within the range of from 0.01 to about 1.6, wherein c is the concentration in mass % of star polymer in the concentrate and ch* is the critical overlap concentration in mass % for the star polymer in the diluent oil used to form the concentrate.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: July 3, 2018
    Assignee: INFINEUM INTERNATIONAL LIMITED
    Inventors: Rajiv R. Taribagil, Stuart A. Taylor, Stuart Briggs, Laurent Chambard
  • Viscosity Index Improver Concentrates
    Publication number: 20170166830
    Abstract: A viscosity index improver containing, in diluent oil, one or more optionally functionalized linear block copolymers having at least one block derived from alkenyl arene covalently linked to at least one block derived from diene in an amount that is greater than the critical overlap concentration (ch*), in mass %, for the linear block copolymers in the diluent oil; and ester base stock and/or at least one star (or radial) polymer, the star polymer being present in an amount such that the c/ch* value of the star polymer in the concentrate falls within the range of from 0.01 to about 1.6, wherein c is the concentration in mass % of star polymer in the concentrate and ch* is the critical overlap concentration in mass % for the star polymer in the diluent oil used to form the concentrate.
    Type: Application
    Filed: December 9, 2015
    Publication date: June 15, 2017
    Inventors: Rajiv R. Taribagil, Stuart A. Taylor, Stuart Briggs, Laurent Chambard