Patents by Inventor Sylvia Alice Gardner

Sylvia Alice Gardner 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).

  • Electrically conductive composition and elements containing solubilized polyaniline complex
    Patent number: 5910385
    Abstract: Electrically conductive elements, such as imaging elements, can be prepared by applying electrically conductive coating compositions to a suitable support. The coating compositions include a polyaniline-protonic counter-ion complex in a first solvent that has certain Hansen solubility parameters, and a film-forming binder in a second common coating solvent. The total solids in the coating composition is less than or equal to about 10 weight %, and the weight ratio of the binder to the complex is at least about 1:1. Under these formulation conditions, the polyaniline protonic counter-ion complex is solubilized, rather than being in dispersed form, and is readily applied to form a thin, relatively transparent, electrically conductive film. Antistatic layers of photographic elements can be prepared in this manner.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: June 8, 1999
    Assignee: Eastman Kodak Company
    Inventors: Sylvia Alice Gardner, Lori Jeanne Shaw-Klein, Brian Kenneth Brady
  • Electrically conductive composition and elements containing solubilized polyaniline complex and solvent mixture
    Patent number: 5716550
    Abstract: Electrically conductive elements, such as imaging elements, can be prepared by applying electrically conductive coating compositions to a suitable support. The coating compositions include a polyaniline-protonic counter-ion complex in a first solvent that has certain Hansen solubility parameters, and a film-forming binder in a second common coating solvent. The total solids in the coating composition is less than or equal to about 10 weight %, and the weight ratio of the binder to the complex is at least about 1:1. Under these formulation conditions, the polyaniline protonic counter-ion complex is solubilized, rather than being in dispersed form, and is readily applied to form a thin, relatively transparent, electrically conductive film. Antistatic layers of photographic elements can be prepared in this manner.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: February 10, 1998
    Assignee: Eastman Kodak Company
    Inventors: Sylvia Alice Gardner, Lori Jeanne Shaw-Klein, Brian Kenneth Brady
  • Clad vanadium pentoxide doped with silver and antistat layers containing the same
    Patent number: 5654089
    Abstract: Clad fibrous vanadium pentoxide, antistat layers containing clad fibrous vanadium pentoxide and imaging elements containing such antistat layers.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 5, 1997
    Assignee: Eastman Kodak Company
    Inventor: Sylvia Alice Gardner
  • Heat developable photographic material and process comprising transition metal carbonyl compounds
    Patent number: 4097281
    Abstract: A heat developable, photographic material comprising, in reactive association, (a) a photosensitive, transition metal carbonyl compound, (b) an oxidation-reduction image-forming combination comprising (i) a tellurium (II) or (IV) compound as an oxidizing agent, with (ii) a reducing agent, and (c) a binder can provide an improved non-silver image. After imagewise exposure of the heat developable material, an image can be developed by merely heating the material.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: June 27, 1978
    Assignee: Eastman Kodak Company
    Inventors: Sylvia Alice Gardner, Mark Lelental