Patents by Inventor John Kounavis

John Kounavis 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).

  • Processes for making masterbatches of rubber and silica
    Patent number: 11098169
    Abstract: A process is provided for making a silica masterbatch, that contains silica and solution-made rubber. The silica masterbatch has physical properties similar to those found in a comparable dry-mixed composition, but the silica masterbatch can be incorporated more easily and less expensively into tires and other rubber products than the dry-mixed composition. A process is also provided for making a masterbatch of silica, a solution-made rubber and an emulsion-made rubber.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: August 24, 2021
    Assignee: Dynasol Elastómeros, S.A. de C.V.
    Inventors: Christopher J. Hardiman, Xuan Fu, Sergio Alberto Moctezuma Espiricueto, John Kounavis, Gabriela Elizabeth Blanco Reyes, Julian Maldonado Valenzuela, José María Islas Manzur, Gabriel Hernández Zamora
  • Processes for Making Masterbatches of Rubber and Silica
    Publication number: 20190263979
    Abstract: A process is provided for making a silica masterbatch, that contains silica and solution-made rubber. The silica masterbatch has physical properties similar to those found in a comparable dry-mixed composition, but the silica masterbatch can be incorporated more easily and less expensively into tires and other rubber products than the dry-mixed composition. A process is also provided for making a masterbatch of silica, a solution-made rubber and an emulsion-made rubber.
    Type: Application
    Filed: August 31, 2017
    Publication date: August 29, 2019
    Applicant: Dynasol Elastómeros, S.A. de C.V.
    Inventors: Christopher J. Hardiman, Xuan Fu, Sergio Alberto Moctezuma Espiricueto, John Kounavis, Gabriela Elizabeth Blanco Reyes, Julian Maldonado Valenzuela, José María Islas Manzur, Gabriel Hernández Zamora
  • Rubber compositions
    Patent number: 7879934
    Abstract: A rubber composition is disclosed wherein the rubber composition contains at least an effective amount of at least one substituted or unsubstituted diaryl amine-containing compound having at least one substituted or unsubstituted, saturated or partially saturated C5-C30 ring structure optionally containing one or more heteroatoms fused to at least one of the aryl rings.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: February 1, 2011
    Assignee: Chemtura Corporation
    Inventors: Theodore E. Nalesnik, John Kounavis, Joseph Stieber
  • Rubber compositions
    Publication number: 20090048376
    Abstract: A rubber composition is disclosed wherein the rubber composition contains at least an effective amount of at least one substituted or unsubstituted diaryl amine-containing compound having at least one substituted or unsubstituted, saturated or partially saturated C5-C30 ring structure optionally containing one or more heteroatoms fused to at least one of the aryl rings.
    Type: Application
    Filed: August 16, 2007
    Publication date: February 19, 2009
    Inventors: Theodore E. Nalesnik, John Kounavis, Joseph Stieber