Patents by Inventor Volker Räntzsch

Volker Räntzsch 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).

  • METHODS FOR MODIFYING THE OPTICAL APPEARANCE OF POLYMERS
    Publication number: 20230374274
    Abstract: The disclosure relates to a method for modifying the optical appearance of a polymer, the method comprising extruding a molten polymer comprising polypropylene and a composition comprising acid scavengers consisting of zinc oxide and zinc carbonate.
    Type: Application
    Filed: October 6, 2021
    Publication date: November 23, 2023
    Applicant: Lummus Novolen Technology GmbH
    Inventors: Manfred Wittner, Volker Räntzsch