Patents by Inventor Geoffrey Charles Eastmond

Geoffrey Charles Eastmond 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).

  • Aromatic polyamides and polyesters containing ortho-ether groups
    Patent number: 5965690
    Abstract: Described herein are polyesters and polyamides which contain repeat units derived from novel dicarboxylic acids comprising arylene groups having ortho ethers substituted thereon. Also disclosed are novel compounds from which these polymers can be made. The polymers are especially useful for molding resins and coatings.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: October 12, 1999
    Assignee: University of Liverpool
    Inventors: Geoffrey Charles Eastmond, Jerzy Paprotny
  • Aromatic polyamides and polyesters containing ortho-ether groups
    Patent number: 5834620
    Abstract: Described herein are polyesters and polyamides which contain repeat units derived from novel dicarboxylic acids comprising arylene groups having ortho ethers substituted thereon. Also disclosed are novel compounds from which these polymers can be made. The polymers are especially useful for molding resins and coatings.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: November 10, 1998
    Assignee: University of Liverpool
    Inventors: Geoffrey Charles Eastmond, Jerzy Paprotny
  • Ortho-bis(etherdianhydrides)
    Patent number: 5675020
    Abstract: Disclosed herein are novel poly(imide-ethers) containing ortho substitution in the main chain of the polymer. These polymers are made from novel aromatic bis-carboxylic anhydrides which contain two ether groups attached to an aromatic ring in ortho positions to each other. The polymers are particularly useful for films, fibers and encapsulation, as well as thermoplastics.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: October 7, 1997
    Assignee: The University of Liverpool
    Inventors: Geoffrey Charles Eastmond, Jerzy Paprotny