Patents by Inventor Carl F. Witzmann

Carl F. Witzmann 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).

  • Foil laminating adhesive
    Patent number: 3974112
    Abstract: An adhesive composition suitable for laminating thin foils to substrates, especially paper, is disclosed consisting essentially of an aqueous solution of a carboxylated vinyl acetate copolymer and a compatible, foil adherent, latex adhesive. These adhesives have the unique viscosity, drying, and adhesive properties required of foil laminating adhesives which were previously available only in foil laminating adhesives incorporating a casein thickener.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: August 10, 1976
    Assignee: National Starch and Chemical Corporation
    Inventors: Donald Nadler, Carl F. Witzmann