Patents Represented by Attorney, Agent or Law Firm Carl F. Ruoff
  • Imaging element and aqueous coating compositions containing polyurethane/vinyl polymer dispersions
    Patent number: 5804360
    Abstract: The present invention is an imaging element including a support, an image-forming layer and at one least layer having been formed by the coating and subsequent drying of a coating composition. The coating composition is an aqueous medium having therein a polyurethane/vinyl polymer dispersion formed by free radical polymerization of a vinyl monomer in the presence of an aqueous polyurethane dispersion.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: September 8, 1998
    Assignee: Eastman Kodak Company
    Inventors: Brian A. Schell, Charles C. Anderson, Kenneth L. Tingler, Yongcai Wang
  • Backing layers for imaging elements containing hard filler particles and crosslinked, elastomeric matte beads
    Patent number: 5800973
    Abstract: The present invention is an imaging element which includes a support, an image forming layer and a backing layer. The backing layer includes a film forming polymeric binder, hard filler particles in an amount of from 10 to 80 volume percent of the backing layer, and crosslinked elastomeric matte beads having a glass transition temperature of 10.degree. C. or less.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: September 1, 1998
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Andy H. Tsou, Paul E. Woodgate
  • Simultaneous coatings of wax dispersion containing lubricant layer and transparent magnetic recording layer for photographic element
    Patent number: 5798136
    Abstract: The present invention is a method of producing an imaging support which includes providing a support, simultaneously coating on a side of the support; a transparent magnetic recording layer comprising magnetic particles, a polymeric binder and an organic solvent, and a lubricating overcoat layer farthest from the support, the lubricating overcoat layer comprising wax particles having a size from 0.01 .mu.m to 0.5 .mu.m, and an organic solvent; and drying the magnetic recording layer and the lubricating overcoat layer.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: August 25, 1998
    Assignee: Eastman Kodak Company
    Inventors: Christine J. Landry-Coltrain, Michael J. Corrigan, Gregory W. Keyes, James H. Griggs, Bradley K. Coltrain
  • Ceramic article
    Patent number: 5798308
    Abstract: The present invention is a sintered ceramic article having an elemental composition including Zr, O, and at least one element selected from the group consisting of Mg, Ca, Y, Sc, Ce and rare earth elements. The ceramic article includes a core and a casing. The casing is exterior to and continuous with the core. The core is a mass of sintered particles having an essentially tetragonal zirconia crystalline structure and the casing is a mass of sintered particles having a mixture of monoclinic zirconia crystalline structure and zircon crystalline structure.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: August 25, 1998
    Assignee: Eastman Kodak Company
    Inventors: Dilip K. Chatterjee, Debasis Majumdar, Thomas N. Blanton
  • Backing layers for imaging elements containing crosslinked elastomeric matte beads
    Patent number: 5786298
    Abstract: The present invention is an imaging element which includes a support, an image forming layer and a backing layer. The backing layer includes a film forming polymeric binder and crosslinked elastomeric matte beads having a glass transition temperature of 10.degree. C. or less.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: July 28, 1998
    Assignee: Eastman Kodak Company
    Inventors: Andy H. Tsou, Charles C. Anderson, Paul E. Woodgate, Debra L. Delle Fave
  • Motion picture print film
    Patent number: 5786134
    Abstract: This invention relates to a motion picture print film having a support and having, in order, on one side thereof an antihalation undercoat and at least one silver halide emulsion layer and having, in order, on the opposite side thereof an antistatic layer, a protective overcoat; characterized in that said protective overcoat includes a polyurethane binder and the polyurethane binder has a tensile elongation to break of at least 50% and a Young's modulus measured at a 2% elongation of at least 50000 lb/in, and a topcoat farthest from the support which includes a hydrophilic binder at a weight percent of at least 20.
    Type: Grant
    Filed: May 15, 1997
    Date of Patent: July 28, 1998
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, Kenneth L. Tingler, Gustav R. Apai, II, Frank A. Pettrone
  • Coating composition for imaging elements
    Patent number: 5786135
    Abstract: The present invention describes an imaging element wherein one layer is coated from an aqueous coating solution having a film forming binder. The film forming binder includes a carboxylic acid containing vinyl polymer or copolymer having a glass transition temperature greater than 60.degree. C. and an acid number of from 60 to 260. The carboxylic acid groups of the vinyl polymer or copolymer are reacted with ammonia or amine to provide a pH of the coating composition of from about 7 to 10.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: July 28, 1998
    Assignee: Eastman Kodak Company
    Inventors: Charles Chester Anderson, Yongcai Wang, James L. Bello, Mario D. DeLaura
  • Abrasive lubricating overcoat layers
    Patent number: 5776668
    Abstract: The present invention describes a photographic element having a support, a light-sensitive layer, a transparent magnetic recording layer and a lubricating/abrasive layer farthest from the support which contains a film-forming binder, lubricant and abrasive particles.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: July 7, 1998
    Assignee: Eastman Kodak Company
    Inventors: George Leslie Oltean, Mridula Nair, Tamara Kay Osburn
  • Three-layer backing for photographic element
    Patent number: 5766836
    Abstract: The present invention discloses a three layer backing system for a photographic element. The backing system in on the opposite side of the light-sensitive layer. The backing system includes a first antistatic layer having an antistatic agent. The backing system includes a barrier layer of a polymer. The overcoat layer, farthest from the support, includes cellulose acetate and cellulose nitrate in a ratio range of from 3:1 to 1:1 and from 5 to 40 percent perfluorinatied polymer particles.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: June 16, 1998
    Assignee: Eastman Kodak Company
    Inventors: Raymond T. Jones, David M. Teegarden, John M. Fukushima, Ronald M. Stimson
  • Co-extruded film with non-crystalline core
    Patent number: 5759756
    Abstract: The present invention is a photographic support including a core layer of a transparent non-crystalline polymer having a glass transition temperature Tg. The core layer has a first surface and a second surface. A first outer layer of a transparent crystalline polymer having a first stretch temperature Ts.sub.1 greater than the Tg is superposed on the first surface of said core layer. A second outer layer of a transparent crystalline polymer having a second stretch temperature Ts.sub.2 greater than the Tg is superposed on the second surface of said core layer.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: June 2, 1998
    Assignee: Eastman Kodak Company
    Inventors: Thomas M. Laney, Jehuda Greener, Wen-Li A. Chen
  • Photographic element containing a core/shell polymer latex
    Patent number: 5756273
    Abstract: A photographic element having a support, a light-sensitive layer and a protective overcoat layer, at least one layer comprising a hydrophilic colloid containing colloidal core-shell latex particles, the core being a hydrophobic polymer and the shell comprising greater than 10 and less than 90 mole percent of an ethylenically unsaturated monomer having a carboxylic acid group.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: May 26, 1998
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Gary William Visconte, Alfred Bruce Fant, James Lee Bello, Kurt Michael Schroeder
  • Protective eyeshield
    Patent number: 5756010
    Abstract: The present invention provides a UVA protective eyeshield that includes a transparent substrate having dispersed therein an effective amount of 1-di-n-hexylamino-4,4-dicyanobutadiene.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: May 26, 1998
    Assignee: Eastman Kodak Company
    Inventors: Charles Howard Appell, Raymond Thomas Jones
  • Simultaneous coatings of stearamide lubricant layer and transparent magnetic recording layer for photographic element
    Patent number: 5756272
    Abstract: The present invention is a photographic element which includes a support, and at least one light-sensitive silver halide layer on a front side of the support. The photographic element has on the backside of the support an antistatic layer; a transparent magnetic recording layer; and a lubricating overcoat layer. The lubricating overcoat layer is farthest from the support and includes a lubricant of the general formula:R--CONH.sub.2where R is a long chain hydrocarbon between 12 and 30 carbons, preferably between 16 and 22.The present invention also provides a method of producing an imaging support which includes, providing a support, and simultaneously coating on the support; a transparent magnetic recording layer including magnetic particles, a polymeric binder and an organic solvent, and a lubricating overcoat layer, the lubricating overcoat layer comprising a lubricant of the general formula:R--CONH.sub.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: May 26, 1998
    Assignee: Eastman Kodak Company
    Inventors: Christine J. Landry-Coltrain, Bradley K. Coltrain, Michael J. Corrigan
  • Motion imaging film comprising a carbon black-containing backing and a process surviving conductive subbing layer
    Patent number: 5747232
    Abstract: In accordance with this invention, a photographic film especially suited for motion imaging film applications such as motion picture film or television film has on one side of a support material, in order, a process surviving, electrically conductive subbing layer, a photographic emulsion, and a protective overcoat; and on the opposite side a carbon black-containing backing layer, and optionally, a lubricant that overlies the backing layer. The carbon black-containing layer provides antihalation and antistatic protection for the unprocessed film. The conductive subbing layer retains its antistatic properties after processing so that the motion imaging film is protected from the generation of static charge after the carbon black-containing layer is removed during processing. The conductive subbing layer has a resistivity of less than 5.times.10.sup.9 .OMEGA./.quadrature. after film processing.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: May 5, 1998
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Mario D. DeLaura
  • Photographic element
    Patent number: 5747234
    Abstract: A photographic element comprising a support, a light-sensitive layer on one side of the support, and on the other side of the support, at least one backing layer and a protective outermost lubricating layer, the protective layer comprising a solid wax and a non-ionic fluorinated surfactant in an amount less than the surfactant's solubility in the wax, said protective layer being coated from a mixture of an aromatic solvent and at least one lower alkyl alcohol.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: May 5, 1998
    Assignee: Eastman Kodak Company
    Inventors: Ronald Myron Wexler, Robert Owen James, Vito A. DePalma, John Francis Decory, Lloyd A. Lobo
  • Photographic imaging element containing matting agents
    Patent number: 5738983
    Abstract: A photographic imaging element comprising a support, at least one light-sensitive silver halide layer, and a light-insensitive layer comprising a polymer particle of the formula:(A).sub.x (B).sub.y (C).sub.z (I)where A is a polyfunctional ethylenically unsaturated crosslinking monomer, B is an ethylenically unsaturated monomer containing carboxylic acid groups, C is a monofunctional ethylenically unsaturated monomer other than B, x is about 0.1 to 2 mole percent, y is about 35 to 70 mole percent and z equals 100-(x+y) mole percent.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: April 14, 1998
    Assignee: Eastman Kodak Company
    Inventors: Dennis Edward Smith, Alfred Bruce Fant, John Leonard Muehlbauer, Yongcai Wang
  • Low pressure injection molding of fine particulate ceramics and its composites at room temperature
    Patent number: 5730929
    Abstract: The present invention is a method for injection molding fine particulate inorganic materials which includes the steps of, compounding a particulate inorganic material and a magnesium-X silicate, wherein X represents lithium, sodium, potassium or other monovalent ion, containing binder, injecting the compounded material at low pressure and ambient temperature into a mold to form a green part, and sintering the green part to form the final molded part.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: March 24, 1998
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Dilip K. Chatterjee, Lisa B. Todd
  • Imaging element comprising an electrically conductive layer containing acicular metal oxide particles and a transparent magnetic recording layer
    Patent number: 5731119
    Abstract: The present invention describes an imaging element which includes a support, an image-forming layer, a transparent magnetic recording layer, and an electrically-conductive layer. The electrically-conductive layer is a dispersion in a film-forming binder of acicular, crystalline single phase, semi-conductive metal-containing particles having a cross-sectional diameter less than 0.02 .mu.m and an aspect ratio of greater than or equal to 5:1.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: March 24, 1998
    Assignee: Eastman Kodak Company
    Inventors: Dennis J. Eichorst, Paul A. Christian, Gerald M. Leszyk
  • Zirconia-alumina ceramic article
    Patent number: 5726110
    Abstract: The present invention is a ceramic article of magnesium-X silicate, wherein X represents lithium, sodium, potassium or other monovalent ion from about 0.1 to 2 weight percent, and yttria stabilized zirconia and alumina composite from about 99.9 to 98 weight percent wherein the yttria stabilized zirconia has a molar ratio of yttria to zirconia of from 0.5:99.5 to 5:95 and the alumina comprises from 0.1 to 50 percent of the yttria stabilized zirconia and alumina composite.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: March 10, 1998
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Dilip K. Chatterjee, Robert J. Kress
  • Protective overcoat for antistatic layer
    Patent number: 5723273
    Abstract: The present invention is an imaging element which includes a support and at least one image forming layer. The imaging element further includes an antistatic layer and a protective layer overlying the antistatic layer. The protective layer is formed from an aqueous coating solution containing a film forming binder and a crosslinking agent. The film forming binder is a carboxylic containing vinyl polymer or copolymer having a glass transition temperature of greater than 50.degree. C. and an acid number of from 60 to 260. The carboxylic acid group of the vinyl polymer or copolymer are reacted with ammonia or amine to provide a pH of the coating solution of from 7 to 10.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: March 3, 1998
    Assignee: Eastman Kodak Company
    Inventors: Charles Chester Anderson, Yongcai Wang, James L. Bello, Mario D. DeLaura