Patents by Inventor Patricia M. Lindley

Patricia M. Lindley 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).

  • High temperature solvent resistant amorphous thermoplastic phenylethynyl quinoxaline resin composition
    Patent number: 4731442
    Abstract: A bis(o-diamine) is reacted with a bis(benziloxy)-2,2'-bis(arylethynyl)biphenyl to provide a qunioxaline polymer having pendant phenylethynyl groups. These polymers can be cured to provide thermally stable polymer compositions.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: March 15, 1988
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Patricia M. Lindley, Bruce A. Reinhardt, Fred E. Arnold
  • Bis(benzilyloxy) compounds
    Patent number: 4683340
    Abstract: Bis(benzilyloxy) compounds having the general formula ##STR1## wherein Ph is --C.sub.6 H.sub.5 and Ar is Ph, --C.sub.6 H.sub.4 Br, --C.sub.6 H.sub.4 CH.sub.3 or --C.sub.6 H.sub.4 C.sub.2 H.sub.5. These compounds can be reacted with bis(o-diamines) to form polyquinoxalines which can be converted to thermally stable compositions by non-volatile, intramolecular cyclization.
    Type: Grant
    Filed: October 8, 1986
    Date of Patent: July 28, 1987
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Patricia M. Lindley, Bruce A. Reinhardt, Fred E. Arnold