Patents by Inventor Kathy B. Sellstrom

Kathy B. Sellstrom 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).

  • Decorative epoxy resin aggregate binder formulation
    Patent number: 4487805
    Abstract: A non-yellowing decorative epoxy resin aggregate binder formulation is disclosed. The formulation comprises 100 parts by weight polyepoxide, 25 parts by weight of a specified polyoxypropylene diamine, 26 parts by weight nonylphenol and 4 parts by weight N-aminoethylpiperazine and 1 to 3 parts by weight of a specified substituted benzotriazole UV absorber dissolved in xylene.Nonylphenol gives the formulation strength with flexibility and resistance to weathering with a high gloss appearance. The substituted benzotriazole UV absorber prevents yellowing of the clear coating.The formulation is useful as a clear coating to bind aggregate (colored pebbles) to a cement surface to form a decorative coating. The formulation is distinguished by its clear, non-yellowing appearance.
    Type: Grant
    Filed: March 15, 1984
    Date of Patent: December 11, 1984
    Assignee: Texaco Inc.
    Inventor: Kathy B. Sellstrom
  • Water-based epoxy resin coating composition
    Patent number: 4421906
    Abstract: A water based epoxy resin composition is disclosed. The epoxy resin is useful in protective coatings. The composition comprises a modified diglycidyl ether of a bisphenol A type epoxy resin with a polyamidopolyamine in aqueous medium. The diglycidyl ether of bisphenol A is modified by partial reaction with a polyoxyalkyleneamine. The polyamidopolyamine is prepared from dimer fatty acids and a polyamine.
    Type: Grant
    Filed: October 15, 1982
    Date of Patent: December 20, 1983
    Assignee: Texaco Inc.
    Inventors: Harold G. Waddill, Kathy B. Sellstrom