Patents by Inventor Clayton C. Crawford

Clayton C. Crawford 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 adhesive
    Patent number: 5036143
    Abstract: High green strength curable urethane adhesive compositions of a polyol, an organic isocyanate compound, a thermoplastic polyurethane which is soluble in methyl ethyl ketone to at least 1 weight percent for imparting tack and green strength properties to the composition, and, optionally, a solvent for controlling the percent solids and viscosity of the composition.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: July 30, 1991
    Assignee: CasChem, Inc.
    Inventors: Melvin Brauer, Clayton C. Crawford
  • Urethane adhesives
    Patent number: 4889915
    Abstract: High green strength curable urethane adhesive compositions of a polyol, an organic isocyanate compound, a thermoplastic polyurethane which is soluble in methyl ethyl ketone to at least 1 weight percent for imparting tack and green strength properties to the composition, and, optionally, a solvent for controlling the percent solids and viscosity of the composition.
    Type: Grant
    Filed: April 14, 1987
    Date of Patent: December 26, 1989
    Assignee: CasChem, Inc.
    Inventors: Melvin Brauer, Clayton C. Crawford