Patents by Inventor John H. Bayless

John H. Bayless 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: 5620749
    Abstract: A process for forming a conductive substrate comprises coating onto a polyethylene terephthalate substrate an aqueous coating solution containing a conductive crosslinkable polymer with charge carrying groups such as sulfonic acid, sulfuric acid ester or quaternary ammonium salt groups attached to a polymerized ethylenic monomer backbone, a volatile amine in an amount to maintain a pH of above 7.0 and a crosslinking agent such as a polyfunctional aziridine, removing water and the volatile amine which decreases the pH to below 7.0 wherein a reaction between the crosslinkable groups of the polymer and the crosslinking agent is initiated to form a crosslinked conductive polymer film.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: April 15, 1997
    Assignee: Sterling Diagnostic Imaging, Inc.
    Inventors: John H. Bayless, Jr., Donald K. Johnes
  • Patent number: 5554447
    Abstract: A conductive substrate for use in a photographic element comprises a polyethylene terephthalate support coated with 0.01-10 g/m.sup.2 of a conductive layer having a low surface energy during coating and a high surface energy after coating which is the reaction product of (i) a conductive crosslinkable polymer with charge carrying groups such as sulfonic acid groups, (ii) a volatile amine and (iii) a crosslinking agent such as a polyfunctional aziridine.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 10, 1996
    Assignee: Sterling Diagnostic Imaging, Inc.
    Inventors: John H. Bayless, Jr., Donald K. Johnes
  • 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: 4869955
    Abstract: An element suitable for preparing transparencies using an electrostatic plain paper copier is described. This element comprises a polyethylene terephthalate support (polyester), at least one subbing layer coated thereon and coated to the subbing layer a toner receptive layer comprising a mixture of an acrylate binder, a polymeric antistatic agent having carboxylic acid groups, a cross-linking agent, butylmethacrylate modified polymethacrylate beads and submicron polyethylene beads. These elements produce excellent transparencies.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: September 26, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: Robert W. Ashcraft, John H. Bayless
  • 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
  • Patent number: 4514492
    Abstract: Desensitization defects due to nonferrous metal contamination of a silver halide film sensitized by a cysteine-thiazolidine moiety are decreased by incorporating a chelating agent such as quinaldic or picolinic acid into one or more layers of the film.
    Type: Grant
    Filed: December 15, 1983
    Date of Patent: April 30, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Raymond J. LeStrange, John H. Bayless, Jr., Allan R. Schoenberg
  • Patent number: 4241170
    Abstract: Polyester films are modified by the addition of a high molecular weight polyethylene glycol and an alkali metal salt of a sulfonic acid-substituted dicarboxylic acid ester to the reaction medium during the polymerization process. Films prepared for example, from diesters of terephthalic acid in the presence of the modifiers of this invention produce films which exhibit good permeability to water vapor.
    Type: Grant
    Filed: August 14, 1979
    Date of Patent: December 23, 1980
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John H. Bayless
  • Patent number: 4217441
    Abstract: Polyester films are modified by the addition of a high molecular weight polyethylene glycol and an alkali metal salt of a sulfonic acid-substituted dicarboxylic acid ester to the reaction medium during the polymerization process. Films prepared for example, from diesters of terephthalic acid in the presence of the modifiers of this invention exhibit good permeability to water vapor.
    Type: Grant
    Filed: March 29, 1978
    Date of Patent: August 12, 1980
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John H. Bayless
  • Patent number: 4002802
    Abstract: Conventional adhesive substratum compositions (e.g. subbing compositions of, for example, aqueous emulsions of a polymerized vinylidene chloride/methyl acrylate/itaconic acid terpolymer) can be used for coating dimensionally stable, hydrophobic macromolecular film bases (e.g. polyethylene terephthalate) after said base has been biaxially stretched by treating said subbing composition with an ion exchange resin.
    Type: Grant
    Filed: September 12, 1975
    Date of Patent: January 11, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John H. Bayless, Harold Carl Arvidson