Patents by Inventor James H. Thirtle

James H. Thirtle 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).

  • Patent number: 5418042
    Abstract: Improved image receiving elements for nonimpact printing comprising a support and an image receiving layer, said image receiving layer comprising a whitening agent and a binder, said binder consisting essentially of 10-25% gelatin and 75-90% water soluble, film forming acrylic polymer are disclosed.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: May 23, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: James H. Thirtle, Steven J. Morganti, John H. Bayless, Jr.
  • Patent number: 5023129
    Abstract: An element useful for recording images using nonimpact type printing is described. This element is preferably comprised of a transparent support having an antistatic layer coated on one side and a print receptive layer coated on the other. In another embodiment another print receptive layer can be present over the antistatic layer. The print receptive layer is a novel combination of binder, crosslinking agent, whitener, and matte agent. Excellent, hard, sharp images are produced using conventional nonimpact printing devices such as ink jet, pen plotters and electrostatic imaging.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: June 11, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Steven J. Morganti, James H. Thirtle
  • Patent number: 4699869
    Abstract: Photosensitive element comprisng a polyester, e.g., polyethylene terephthalate, at least 0.008 inch (0.20 mm) thick bearing on both sides a polymeric water-vapor barrier layer at least 0.00001 inch (0.00025 mm) thick of a copolymer of vinylidene chloride containing at least 80% by weight of vinylidene chloride and minor amounts of alkyl acrylate, and itaconic acid, and on at least one side of said barrier layer, a layer of a photosenstive material, e.g., silver halide emulsion, diazo or photopolymer. The element in the form of a phototool limits dimensional change within 6 hours after exposure to a 5% Relative Humidity change to no more than 0.001 inch (0.025 mm) per 24 inches (60.96 cm).
    Type: Grant
    Filed: November 7, 1986
    Date of Patent: October 13, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John H. Bayless, Neil I. Steinberg, James H. Thirtle
  • Patent number: 4645731
    Abstract: Photosensitive element comprising a polyester, e.g., polyethylene terephthalate, at least 0.008 inch (0.20 mm) thick bearing on both sides a polymeric water-vapor barrier layer at least 0.00001 inch (0.00025 mm) thick of a copolymer of vinylidene chloride containing at least 80% by weight of vinylidene chloride and minor amounts of alkyl acrylate, and itaconic acid, and on at least one side of said barrier layer, a layer of a photosensitive material, e.g., silver halide emulsion, diazo or photopolymer. The element in the form of a phototool limits dimensional change within 6 hours after exposure to a 5% Relative Humidity change to no more than 0.001 inch (0.025 mm) per 24 inches (60.96 cm).
    Type: Grant
    Filed: December 27, 1985
    Date of Patent: February 24, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John H. Bayless, Neil I. Steinberg, James H. Thirtle