Patents Assigned to Nekoosa Edwards Paper Company, Inc.
  • Patent number: 3985927
    Abstract: Compositions and method for producing chemical watermarks in finished paper products, the watermarks being produced by applying to the surface of the paper a synthetic resin composition having a chemical grouping therein capable of being insolubilized upon exposure to high frequency radiation, and thereafter exposing the resin composition to such high frequency radiation to insolubilize the resin.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: October 12, 1976
    Assignee: Nekoosa Edwards Paper Company, Inc.
    Inventors: Terry O. Norris, Rolland A. Aubey, John E. Haug