Patents by Inventor Miriam A. L. Verbruggen

Miriam A. L. Verbruggen 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).

  • Method for devulcanizing rubber with an amine
    Patent number: 6956065
    Abstract: The invention relates to a method for devulcanizing a sulphur-cured rubber, which rubber contains a network of a polymer, which polymer has a main chain of carbon atoms, in which for the vulcanization per 40 carbon-carbon bonds in the main chain a maximum of 1 unsaturated carbon-carbon bond occurs, by heating the rubber in the presence of a devulcanizing agent. The devulcanizing agent is an amine compound.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: October 18, 2005
    Assignee: DSM IP Assets B.V.
    Inventors: Martin Van Duin, Jacobus W. M. Noordermeer, Miriam A. L. Verbruggen, Leen Van Der Does
  • Method for devulcanizing rubber with an amine
    Publication number: 20030013776
    Abstract: The invention relates to a method for devulcanizing a sulphur-cured rubber, which rubber contains a network of a polymer, which polymer has a main chain of carbon atoms, in which for the vulcanization per 40 carbon-carbon bonds in the main chain a maximum of 1 unsaturated carbon-carbon bond occurs, by heating the rubber in the presence of a devulcanizing agent. The devulcanizing agent is an amine compound.
    Type: Application
    Filed: March 27, 2002
    Publication date: January 16, 2003
    Inventors: Martin Van Duin, Jacobus W.M. Noordermeer, Miriam A.L. Verbruggen, Leen Van Der Does