Patents by Inventor Clarke A. Boyce

Clarke A. Boyce 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).

  • Vinyl acetate polymer with wet adhesion
    Patent number: 5208285
    Abstract: Wet adhesion properties comparable or superior to all-acrylic latexes for vinyl acetate copolymers and other low cost polymers, such as EVA-vinyl chloride copolymers, is achieved by blending a minor proportion, usually about 5 to 15%, of a small particle size copolymer containing copolymerized wet adhesion monomer which is a cyclic ureido. Very low quantities of the wet adhesion monomer, less than 0.25 wt% of total monomers, only are required to achieve excellent results.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: May 4, 1993
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Clarke A. Boyce, Rajeev Farwaha, Brigitte H. Licht, Martin Menard