Patents by Inventor Ewout Feenstra

Ewout Feenstra 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).

  • Polymer composition
    Patent number: 8278384
    Abstract: The invention relates to a polymer composition comprising a matrix polymer, silica particles dispersed therein, and a coupling agent and a screening agent for the silica particles, and is characterized in that the screening agent is an alkylamine compound. The polymer composition is particularly suitable for the manufacture of rubber tires with improved rolling resistance.
    Type: Grant
    Filed: November 23, 2007
    Date of Patent: October 2, 2012
    Assignee: Apollo Vredestein B.V.
    Inventors: Louis-Philippe Antoine Eugène Maria Reuvekamp, Gerard Nijman, Ewout Feenstra
  • POLYMER COMPOSITION
    Publication number: 20100081761
    Abstract: The invention relates to a polymer composition comprising a matrix polymer, silica particles dispersed therein, and a coupling agent and a screening agent for the silica particles, and is characterized in that the screening agent is an alkylamine compound. The polymer composition is particularly suitable for the manufacture of rubber tyres with improved rolling resistance.
    Type: Application
    Filed: November 23, 2007
    Publication date: April 1, 2010
    Inventors: Louis-Philippe Antoine Eugène Maria Reuvekamp, Gerard Nijman, Ewout Feenstra