Patents by Inventor Gunnar Winkelmann

Gunnar Winkelmann 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: 9102834
    Abstract: A method for producing bulk good of agglomerates made of rubber particles and wax. A composition of the agglomerate and the use of the bulk good to produce asphalt or bitumen masses are created in that rubber is activated by swelling and using a swelling agent and a melt made of viscosity-reducing wax and of optional polyoctenamer is added, the activated rubber particles are agglomerated by means of the viscosity-reducing wax and optional adhesion-improving substances. The resulting larger volume leads to a viscosity reduction and the softening leads to a more intimate and more homogeneous wetting with the wax and, in the mixed good to be produced, a viscosity reduction remaining stable in the mixed good for <180 min and an increased stability of the cross-linking of the rubber molecules among each other after the agglomerates have been incorporated are achieved.
    Type: Grant
    Filed: July 10, 2011
    Date of Patent: August 11, 2015
    Assignees: SASOL WAX GmBH, STORIMPEX IM-UND EXPORT GmBH
    Inventors: Thorsten Butz, Matthias Nölting, Gunnar Winkelmann
  • Publication number: 20130116364
    Abstract: A method for producing bulk good of agglomerates made of rubber particles and wax. A composition of the agglomerate and the use of the bulk good to produce asphalt or bitumen masses are created in that rubber is activated by swelling and using a swelling agent and a melt made of viscosity-reducing wax and of optional polyoctenamer is added, the activated rubber particles are agglomerated by means of the viscosity-reducing wax and optional adhesion-improving substances. The resulting larger volume leads to a viscosity reduction and the softening leads to a more intimate and more homogeneous wetting with the wax and, in the mixed good to be produced, a viscosity reduction remaining stable in the mixed good for <180 min and an increased stability of the cross-linking of the rubber molecules among each other after the agglomerates have been incorporated are achieved.
    Type: Application
    Filed: July 10, 2011
    Publication date: May 9, 2013
    Applicants: STORIMPEX IM- UND EXPORT GMBH, SASOL WAX GMBH
    Inventors: Thorsten Butz, Matthias Nölting, Gunnar Winkelmann