Patents by Inventor Susan E. Gransden

Susan E. Gransden 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).

  • Epoxy resin fortifiers based on aromatic amides
    Patent number: 4480082
    Abstract: The reaction product of (i) an aromatic amide having the amine group of the amide attached to an aromatic ring, and (ii) a mono- or di-epoxide, has been found to be a good fortifier of epoxy resins. Epoxy resins have been found to attain increased strength and modulus (yet not brittle) by compounding:(a) a resin-forming polyepoxide,(b) an amine curing agent for (a), and(c) the above fortifier; and heat curing the mixture. Strengths as high as 130-150 MPa and modulus values to as high as 5000 MPa have been achieved yet with a ductile mode of fracture.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: October 30, 1984
    Assignee: Canadian Patents & Development Limited
    Inventors: Paul D. McLean, Andrew Garton, Robert F. Scott, Susan E. Gransden