Patents by Inventor Merle Fastenrath

Merle Fastenrath 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).

  • INTERMEDIATE PRODUCT FOR MANUFACTURING LIGAIN POLYMERS AND IT'S USE IN MANUFACTURING REAGENTS FOR MAKING COMPOSITE MATERIALS FROM PLANT FIBERS, WATERPROOF PAPERS AND CARDBOARDS, AND THERMOSETTING PLASTICS FROM DERIVATIVES
    Patent number: 6410674
    Abstract: The invention relates to an intermediate product for manufacturing polymers of lignin derivatives from the pulp industry, made by treating the lignin derivatives with phenol oxidizing enzymes in the presence of oxidation agents, characterized in that the lignin derivatives are (a) subjected to enzyme treatment for more than 3 hours in the presence of air, or (b) subjected to enzyme treatment for more than 10 minutes while air or oxygen is being passed through them, or (c) oxidized by treatment with chemical oxidation agents. The intermediate product is used in manufacturing polymers of lignin derivatives from the pulp industry, fiber-reinforced thermosetting composite materials from plant fibers, waterproof papers and cardboards, and thermosetting plastics from lignin derivatives.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: June 25, 2002
    Assignee: Stockhausen GmbH & Co. KG
    Inventors: Aloys Hüttermann, Andrzej Majcherczyk, Carsten Mai, Annette Braun-Lüllemann, Merle Fastenrath, Sonja Noetzold