Patents by Inventor Bonnie Keyes

Bonnie Keyes 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).

  • Polyol blends of phthalate/trimellitate esters for polyurethane-polyisocyanurate foams
    Patent number: 4526908
    Abstract: Homogenous liquid polyol blend compositions containing (a) certain aliphatic polyols, (b) phthalate diester polyols of said aliphatic polyols, and (c) trimellitate polyols of said aliphatic polyols. Such polyol blend compositions are useful in making homogenous liquid resin prepolymer blends compositions containing, in addition to such a polyol blend, fluorocarbon blowing agent, cell stabilizing surfactant, and urethane and/or isocyanurate catalyst. Such a resin prepolymer blend composition is suitable for reaction with organic isocyanates to produce cellular polyurethane and/or polyisocyanurate polymers.
    Type: Grant
    Filed: June 14, 1984
    Date of Patent: July 2, 1985
    Assignee: Stepan Company
    Inventors: George Magnus, Norman Smith, Bonnie Keyes