Patents by Inventor Keith L. Truog

Keith L. Truog 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).

  • Patent number: 5000809
    Abstract: A process for forming a composite that is useful as an exterior vehicle part in which a layer of a coating composition is applied to a flexible smooth glossy polymeric carrier sheet and dried and laminated under heat and pressure to a flexible polymeric substrate to form a laminate, the carrier sheet is removed and the laminate is thermoformed into a three dimensional structure and a rigid thermoformable plastic is adhered to the thermoformed laminate to form the composite; the coating compsition used in the process that forms the exterior finish on the composite has a film forming binder which is in an organic liquid carrier is of a polyesterurethane and a multifunctional crosslinking agent of an epoxy compound or an organic polyisocyanate; whereinthe polyesterurethane is formed by reacting a hydroxy functional polyester with a hydroxy containing carboxylic acid and an organic polyisocyanate.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: March 19, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul L. Adesko, Jeffery W. Johnson, Patrick L. Spain, Keith L. Truog