Patents by Inventor Piet Driest

Piet Driest 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).

  • Anhydrously curing polyisocyanate-based adhesives
    Patent number: 12247144
    Abstract: The present invention relates to adhesives which are characterized in that they cure in the absence of water and at room temperature with the formation of isocyanurate groups.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: March 11, 2025
    Assignee: Covestro Deutschland AG
    Inventors: Dirk Achten, Florian Golling, Christoph Thiebes, Ute Nattke, Piet Driest
  • STORAGE-STABLE THERMOLATENT CATALYSTS FOR THE POLYMERIZATION OF ISOCYANATES
    Publication number: 20220380512
    Abstract: The present invention relates to the use of metal salts of polymeric alcohols as storage-stable thermolatent catalysts for the manufacture of isocyanurate and polyisocyanate polymers.
    Type: Application
    Filed: October 2, 2020
    Publication date: December 1, 2022
    Inventors: Piet Driest, Dirk Achten, Richard Meisenheimer, Denise Kleinschmidt
  • ANHYDROUSLY CURING POLYISOCYANATE-BASED ADHESIVES
    Publication number: 20220145149
    Abstract: The present invention relates to adhesives which are characterized in that they cure in the absence of water and at room temperature with the formation of isocyanurate groups.
    Type: Application
    Filed: October 17, 2019
    Publication date: May 12, 2022
    Inventors: Dirk Achten, Florian Golling, Christoph Thiebes, Ute Nattke, Piet Driest