Patents Assigned to DuPont Operations Worldwide, Inc.
  • Dimensionally stable flexographic printing plates
    Patent number: 6171758
    Abstract: The present invention is a flexographic printing plate having a very low degree of thermal distortion during development. This flexographic printing plate comprises a dimensionally stable substrate and an image bearing relief layer, wherein the thermal distortion of the flexographic printing plate in both the machine and the transverse directions is less than 0.02% when the plate is developed at temperatures in the range from about 100° C. to about 180° C.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: January 9, 2001
    Assignee: DuPont Operations Worldwide, Inc.
    Inventors: Sudershan K. Bhateja, John A. Martens, Kurt F. Feil