Patents by Inventor Gunnar GEIGER

Gunnar GEIGER 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).

  • LIGNIN-CONTAINING POLYURETHANES
    Publication number: 20210163746
    Abstract: The present invention relates to generally relates to polyurethanes containing at least one lignin compound. In particular, the invention relates to a reactive polyurethane system comprising at least one polyol, at least one polyisocyanate and at least one lignin compound. In further aspects, the invention relates to a process for producing a polyurethane from a reactive system as disclosed, a polyurethane obtainable by such process, polyurethane adhesives, articles comprising cured polyurethane adhesives and a method for adhesive bonding.
    Type: Application
    Filed: April 5, 2019
    Publication date: June 3, 2021
    Inventors: Frank DÜRSEN, Gunnar GEIGER, Andrea SANDER, Michael KUGLER