Patents by Inventor Robert O. Matthews

Robert O. 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).

  • Polyetherimide-polyphenylene ether blends
    Patent number: 4431779
    Abstract: Disclosed are blends of (a) a polyetherimide and (b) a polyphenylene ether. The components of the blend are generally compatible and the blends exhibit good impact strength as well as good mechanical properties. The blends are suitable for forming insulative films on substrates and for the manufacture of filaments, fibers, coatings, molded articles and the like.
    Type: Grant
    Filed: April 2, 1982
    Date of Patent: February 14, 1984
    Assignee: General Electric Company
    Inventors: Dwain M. White, Robert O. Matthews
  • Novel polyetherimide-polyester blends
    Patent number: 4141927
    Abstract: This invention is concerned with a new class of polyetherimide-polyester blends. More particularly, the invention is concerned with polyetherimide-polyester blends which exhibit melt viscosities lower than those associated with the polyetherimide component of the blends. The polyetherimide-polyester blends are suitable for the manufacture of filaments, fibers, films, molding compounds, coatings, etc.
    Type: Grant
    Filed: May 22, 1975
    Date of Patent: February 27, 1979
    Assignee: General Electric Company
    Inventors: Dwain M. White, Robert O. Matthews