Patents by Inventor Elton L. Beavan

Elton L. Beavan 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).

  • In photographic emulsion adhesion to a polyester film base
    Patent number: 4293642
    Abstract: Adhesion of a hydrophilic photographic emulsion to a hydrophobic polyester substrate is achieved by providing the substrate with a surface layer containing free carboxy groups and incorporating in the emulsion a cross-linking agent which can cross-link the emulsion and the carboxy containing surface layer. Carbodiimides are a class of cross-linking agents having this capability.
    Type: Grant
    Filed: May 13, 1980
    Date of Patent: October 6, 1981
    Assignee: GAF Corporation
    Inventors: Elton L. Beavan, E. Bradley Moynahan