Patents by Inventor Demetreos N. Matthews

Demetreos N. Matthews 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).

  • Flame retarded polyurethane compositions
    Patent number: 4143029
    Abstract: A dripless, fire-retarded, polyurethane elastomer comprising a blend of the elastomer with a hexaalkoxymethylmelamine, a trihydrocarbylcarbonylmelamine and compounds selected from the group comprising (1) aromatic bismaleimide or (2) an aromatic bismaleimide generator.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: March 6, 1979
    Assignee: Uniroyal, Inc.
    Inventors: Demetreos N. Matthews, Walter Nudenberg