Patents by Inventor Edward D. Surman

Edward D. Surman 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).

  • Biaxially oriented film with voided baselayer
    Patent number: 5514460
    Abstract: Biaxially oriented film including a voided base layer consisting of a propylene homopolymer and a particulate voiding agent, and a non-voided outer layer of propylene homopolymer coextensive with the voided base layer, the particular voiding agent having a mean particle size of not more than 2 .mu.m. Such films have good opacity combined with good gloss for the surface of the non-voided outer layer of propylene homopolymer on the base layer.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: May 7, 1996
    Assignee: Courtaulds Films (Holdings) Limited
    Inventors: Edward D. Surman, David Williamson