Patents by Inventor Paul H. Stenson

Paul H. Stenson 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).

  • Urethane resins and coating compositions and methods for their use
    Patent number: 5777024
    Abstract: An allophanate-modified urethane resin is formed by reacting an allophanate-modified isocyanurate with one or more hydroxy-functional olefinic compounds, such as hydroxy-functional acrylates, methacrylates, allyl ethers, or vinyl ethers. Such resins typically have relatively low viscosities and can be used to make coating compositions for surfaces such as wood, cement, vinyl, plastic, metal, and glass on such diverse products as flooring, vinyl tiles and sheets, fiber optics, and plastic. Such coating compositions are typically curable by thermal processes or by high-energy irradiation, including UV/visible light or electron beam irradiation.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: July 7, 1998
    Assignee: The Valspar Corporation
    Inventors: T. Howard Killilea, Donald W. Boespflug, Paul H. Stenson
  • Incorporation of desired groups into polymers, the polymers so produced, and compositions containing them
    Patent number: 5364891
    Abstract: Process for making a polymer with desired groups Y comprising reacting a precursor polymer having carbon- or nitrogen-bound --NH.sub.2 and/or --NH-- groups with at least one compound having a single enolic carbonyl group and at least one group Y. Also the polymer itself and a composition containing it.
    Type: Grant
    Filed: February 14, 1991
    Date of Patent: November 15, 1994
    Assignees: Imperial Chemical Industries PLC, ICI Resins BV
    Inventors: David A. Pears, John G. Carey, Paul H. Stenson, Gerardus C. Overbeek