Patents by Inventor Rainer Wissert

Rainer Wissert 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).

  • Patent number: 9120909
    Abstract: Process for producing a polymer-graphite nanocomposite, which comprises the steps a) oxidation of graphite to graphite oxide, b) conversion of the graphite oxide into an aqueous dispersion, c) mixing of the aqueous dispersion comprising graphite oxide or, if appropriate, reduced graphite oxide which is obtained from b) with an aqueous polymer dispersion comprising at least one polymer and d) separating off the polymer-graphite mixture from the aqueous phase, wherein the graphite oxide which has been oxidized in step a) is reduced to graphite between step b) and c) or between step c) and d).
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: September 1, 2015
    Assignee: Styrolution Europe GmbH
    Inventors: Hans-Helmut Görtz, Rolf Minkwitz, Rolf Mülhaupt, Rainer Wissert, Peter Steurer
  • Publication number: 20120187348
    Abstract: Process for producing a polymer-graphite nanocomposite, which comprises the steps a) oxidation of graphite to graphite oxide, b) conversion of the graphite oxide into an aqueous dispersion, c) mixing of the aqueous dispersion comprising graphite oxide or, if appropriate, reduced graphite oxide which is obtained from b) with an aqueous polymer dispersion comprising at least one polymer and d) separating off the polymer-graphite mixture from the aqueous phase, wherein the graphite oxide which has been oxidized in step a) is reduced to graphite between step b) and c) or between step c) and d).
    Type: Application
    Filed: September 13, 2010
    Publication date: July 26, 2012
    Applicant: BASF SE
    Inventors: Hans-Helmut Görtz, Rolf Minkwitz, Rolf Mülhaupt, Rainer Wissert, Peter Steurer