Patents by Inventor Andree Blesgen

Andree Blesgen 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).

  • NEW METHOD FOR RECYCLING OF POLYURETHANE
    Publication number: 20250011565
    Abstract: A new method for recycling polyurethane, in particular polyurethane foam via solvolysis can be performed. The new method includes a very efficient pre-treatment method of the polyurethane, wherein it is converted into a polyurethane dispersion. The method also includes providing the polyurethane, preparing a dispersion, and solvolyzing the dispersion. The polyurethane has an average particle size of 0.1 to 12 mm.
    Type: Application
    Filed: October 28, 2022
    Publication date: January 9, 2025
    Applicant: Evonik Operations GmbH
    Inventors: Georg Borchers, Hubert Müller, Jörg Röder, Natalia Hinrichs-Tontrup, Brigitte Mess, Malte Fischer, Marina Lazar, Andree Blesgen, Jens Hildebrand