Patents Assigned to Alfred Doi
  • Ultraviolet protective coatings for application to heat sensitive record materials and other photodegradable printed matter
    Patent number: 5371058
    Abstract: Printing substrate materials (e.g., paper, cardboard, card stock, label stock, facsimile paper, thermally sensitive record materials, plastic film, et cetera . . . ) having at least one layer of an air dryable ultraviolet protective primer formed thereon. One or more layers of topcoat, such as a radiation curable topcoat, may be applied over top of the primer of the present invention to form a complete primer/topcoat system on the substrate material.
    Type: Grant
    Filed: June 10, 1992
    Date of Patent: December 6, 1994
    Assignee: Alfred Doi
    Inventors: James T. Wittig, Jr., Alfred Doi