Protective Or Antiabrasion Layer Patents (Class 430/961)
  • Patent number: 6130014
    Abstract: The present invention is a coating composition comprising at least one first water insoluble polymer having a Tg equal to or less than 30.degree. C. and at least one second water insoluble polymer having a Tg equal to or greater than 60.degree. C. wherein the first polymer comprises a monomer at a weight percent of 75 to 100 of the monomer represented by the following formula 1: ##STR1## wherein: X is selected from the group consisting of --Cl, --F, or --CN, and Y is each independently selected from the group consisting of H, Cl, F, CN, CF.sub.3, CH.sub.3, C.sub.2 H.sub.5, n-C.sub.3 H.sub.7, iso-C.sub.3 H.sub.7, n-C.sub.4 H.sub.9, n-C.sub.5 H.sub.11, n-C.sub.6 H.sub.13, OCH.sub.3, OC.sub.2 H.sub.5, phenyl, C.sub.6 F.sub.5, C.sub.6 Cl.sub.5, CH.sub.2 Cl, CH.sub.2 F, Cl, F, CN, CF.sub.3, C.sub.2 F.sub.5, n-C.sub.3 F.sub.7, iso-C.sub.3 F.sub.7, OCF.sub.3, OC.sub.2 F.sub.5, OC.sub.3 F.sub.7, C(CF.sub.3).sub.3, CH.sub.2 (CF.sub.3), CH(CF.sub.3).sub.2, COCF.sub.3, COC.sub.2 F.sub.5, COCH.sub.3, COC.sub.2 H.sub.
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: October 10, 2000
    Assignee: Eastman Kodak Company
    Inventors: Hwei-Ling Yau, Tienteh Chen, David E. Decker, Stephan L. Twist, Kevin M. O'Connor
  • Patent number: 6130024
    Abstract: The invention relates to an imaging element comprising support having adhered to the backside a strippable polymer layer that when removed has an adhesive layer thereon.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: October 10, 2000
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, Robert P. Bourdelais, Thaddeus S. Gula, Robert F. Cournoyer
  • Patent number: 6087051
    Abstract: An information recording material having thereon an image carrier layer composed of a hydrophilic polymer and a protective covering layer. The protective covering layer contains an aqueous polyurethane resin or an aqueous polyacryl resin. An information recording material which is excellent in terms of water resistance, anti-scratch property, glossiness, image storage stability and resistance to fingerprints is obtained.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: July 11, 2000
    Assignee: Konica Corporation
    Inventors: Takehiko Shoji, Yoshihiko Suda, Noriyuki Kokeguchi, Shin-ichi Suzuki
  • Patent number: 6077648
    Abstract: The present invention is a photographic element which includes a support, at least one silver halide emulsion layer superposed on the support and a processing solution permeable protective overcoat overlying the silver halide emulsion layer. The processing solution permeable overcoat is composed of a urethane-vinyl copolymer having acid functionalities wherein a weight ratio of the urethane in the copolymer comprises from 20 to 100 percent and a weight ratio of the vinyl in the copolymer comprises from 0 to 80 percent. The present invention is a method of making a photographic element which includes providing an photographic element having a support, a silver halide emulsion layer superposed on the support and a processing solution permeable protective overcoat overlying the silver halide emulsion layer.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: June 20, 2000
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, Tamara K. Jones, Lloyd A. Lobo, Brian A. Schell
  • Patent number: 6068957
    Abstract: The present invention is an imaging element which includes a support, at least one imaging layer superposed on the support and a protective topcoat superposed farthest from the support. The topcoat includes a binder and lubricant droplets. The lubricant droplets are composed of a lubricant and a water soluble polymer containing heterocyclic aromatic nitrogen groups wherein the droplets are surrounded by a particulate stabilizer. The present invention is also directed to the lubricant droplets.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: May 30, 2000
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, Tamara K. Osburn, Louis J. Sorriero
  • Patent number: 6048677
    Abstract: The present invention is a photographic element which includes a support having a first side and a second side, at least one light sensitive emulsion layer superposed on the first side of the support, a transparent magnetic layer superposed on the second side of the support. The transparent magnetic layer includes magnetic particles and a film forming binder. An outermost abrasive lubricant layer overlies the transparent magnetic layer. The outermost abrasive lubricant layer is formed from a non-aqueous coating composition of a composite wax particle, an abrasive particle and an organic solvent. The composite wax particle is composed of a wax phase having a wax having a melting point of greater than 30.degree. C. the wax being greater than 80% by weight of the wax phase and a non-crosslinked polymer phase free of chemically bonded acid groups.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: April 11, 2000
    Assignee: Eastman Kodak Company
    Inventors: Janglin Chen, Yongcai Wang, Vito A. DePalma, Robert O. James
  • Patent number: 6048678
    Abstract: The present invention is an imaging element which contains a support, an image forming layer superposed on the support and an outermost protective layer superposed on the support. The protective layer is a cellulosic material and a composite wax particle. The wax particle is composed of a wax phase and a non-crosslinked polymer phase. The wax phase includes a wax having a melting point of greater than 30.degree. C. The non-crosslinked polymer phase contains from 10% to 80% by weight of a mono-alpha, beta-ethylenically unsaturated monomer capable of addition polymerization to form a water soluble homopolymer. In a preferred embodiment the protective layer overlies an antistatic layer.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: April 11, 2000
    Assignee: Eastman Kodak Company
    Inventors: Dwight W. Schwark, Yongcai Wang, Robert J. Kress
  • Patent number: 6043010
    Abstract: An object of the present invention is to provide a silver halide photographic material having improved antiblocking property without deterioration of film brittleness and image quality due to addition of a polymer latex.A silver halide photographic material having at least one silver halide emulsion layer and at least one nonsensitive protective layer on a support, in which the nonsensitive protective layer contains polymer grains represented by the following General Formula (1) in a proportion by weight of 5 to 300% to a hydrophilic colloid as a binder, and the polymer grains have a mean grain diameter of at most 0.1 .mu.m,--(A).sub.x --(B).sub.y --(C).sub.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: March 28, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hirohisa Hokazono, Tomokazu Yasuda, Kentaro Shiratsuchi, Takashi Ozawa
  • Patent number: 6033839
    Abstract: This invention comprises a thermally processable imaging element comprising:(1) a support;(2) a thermally processable imaging layer on one side of the support; and(3) a protective layer comprising:(A) a film-forming binder;(B) matte particles comprising a core surrounded by said film-forming binder.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: March 7, 2000
    Assignee: Eastman Kodak Company
    Inventors: Dennis E. Smith, Sharon M. Melpolder, John L. Muehlbauer
  • Patent number: 6025111
    Abstract: The present invention describes an aqueous coating composition useful in an imaging element which includes polymeric matte beads, an ionic surfactant and a dispersant selected from the group of polymers represented by the generic structures shown below ##STR1## wherein A comprises up to 150 repeat units of ethylene oxide, B comprises 3 to about 100 repeat units of a propylene oxide or higher alkylene oxide or combinations thereof, Q represents a multivalent linking group, x represents 1 or 2 and z represents 1 or 2.
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: February 15, 2000
    Assignee: Eastman Kodak Company
    Inventors: Brian A. Schell, Mridula Nair
  • Patent number: 6020117
    Abstract: A thermographic or photothermographic element is disclosed having a surface coating containing a film-forming binder overlying at least one major surface of the element. An alkoxysilane containing at least one saturated hydrocarbon substituent having at least 8 carbon atoms is confined to the surface coating to act as a friction reducing compound.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: February 1, 2000
    Assignee: Eastman Kodak Company
    Inventors: Charles L. Bauer, Michael J. Ritz
  • Patent number: 6015656
    Abstract: A tabular silica dispersion is disclosed, which is obtained by mixing a tabular silica, gelatin, a cyclodextrin and a compound capable of crosslinking gelatin. Silver halide photographic materials are also disclosed, in which the tabular silica dispersion is incorporated into a silver halide emulsion layer or a light-insensitive hydrophilic colloidal layer.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: January 18, 2000
    Assignee: Konica Corporation
    Inventor: Ken Nagami
  • Patent number: 6013410
    Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having thereon a subbing layer having a glass transition point Tg of 40.degree. C. to 200.degree. C. which comprises a hydrophobic resin, and a silver halide emulsion layer and optionally a non-light-sensitive hydrophilic colloid layer provided on the subbing layer, and at least one of the silver halide emulsion layer and the non-light-sensitive hydrophilic colloid layer contains an inorganic colloidal particle or a composite latex comprising an inorganic particle and a hydrophobic resin in an amount of 0.1 g/m.sup.2 to 2.0 g/m.sup.2 of in total.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: January 11, 2000
    Assignee: Konica Corporation
    Inventor: Takeo Arai
  • Patent number: 6004735
    Abstract: The present invention is an imaging element including a support, having at least one image forming layer, and having at least one stain resistant overcoat layer. The stain resistant overcoat layer contains a fluoro(meth)acrylate interpolymer having two different segments, one of which is fluorinated and oleophobic and the other of which is hydratable.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: December 21, 1999
    Assignee: Eastman Kodak Company
    Inventors: Brian A. Schell, Charles C. Anderson
  • Patent number: 5998118
    Abstract: The present invention is a photographic element which includes a support having a frontside and a backside, at least one silver halide emulsion layer superposed on the frontside of the support; and a protective overcoat layer superposed on the backside of the support. The protective overcoat layer is a mixture of a first vinyl polymer having an acid number of from 5 to 100 and a second vinyl polymer having an acid number of from 70 to 250 wherein the acid number of the second polymer is greater than the acid number of the first polymer.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: December 7, 1999
    Assignee: Eastman Kodak Company
    Inventors: Dwight W. Schwark, Yongcai Wang, Charles C. Anderson
  • Patent number: 5994044
    Abstract: A color photographic recording material which contains particles of elemental silicon and/or of solid compounds in which silicon is present in stoichiometric excess, having an average diameter of .ltoreq.120 nm, is distinguished by improved protection against UV radiation.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: November 30, 1999
    Assignee: Agfa-Gevaert AG
    Inventors: Jorg Hagemann, Werner Hoheisel, Reimer Holm
  • Patent number: 5994005
    Abstract: The present invention is an imaged photographic element including a support, having at least one silver halide emulsion layer, and having at least one stain resistant overcoat layer. The stain resistant overcoat layer contains a fluoro(meth)acrylate interpolymer having two different segments, one of which is fluorinated and oleophobic and the other of which is hydratable. The stain resistant overcoat is applied to the photographic element after film processing.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: November 30, 1999
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Brian A. Schell
  • Patent number: 5989796
    Abstract: A thermally processable imaging element is disclosed having a protective coat overlying at least one thermographic or photothermographic imaging layer containing an organic silver salt and a thermally activated reducing agent for silver ion. The protective coat includes a film-forming binder comprised of a water dispersible polymer containing hydroxy pendant groups and, to reduce low density spots visible after thermal processing, a combination of anionic, non-ionic and fluorocarbon moiety containing surfactants satisfying formula defined selection criteria.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: November 23, 1999
    Assignee: Eastman Kodak Company
    Inventor: Alice Moon
  • Patent number: 5985530
    Abstract: A silver halide photographic material is disclosed, comprising a support having on one side the support photographic component layers, wherein at least one of the component layers contains a composite polymeric material comprising inorganic particles and a hydrophobic polymer, a silver halide emulsion layer comprising a silver halide emulsion containing silver halide grains having an average chloride content of not less than 60 mol % and containing a metal dopant.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: November 16, 1999
    Assignee: Konica Corporation
    Inventors: Wataru Ishikawa, Takehiro Kobayashi, Hirohide Ito
  • Patent number: 5965304
    Abstract: The present invention is an imaged photographic element which includes a support, at least one silver halide light-sensitive emulsion layer superposed on the support; and a protective overcoat furthest from the support. The protective overcoat is superposed on the silver halide light sensitive layer. The protective overcoat includes a first polymeric particle having a glass transition temperature of greater than or equal to 25.degree. C. and a particle size of from 5 to 500 nm and a second polymeric particle having a glass transition temperature of less than 25.degree. C. and a particle size of from 5 to 500 nm at a weight ratio of the first polymeric particle to the second polymeric particle of from 3:97 to 80:20 and wax particle having a size of from 0.01 .mu.m to 0.5 .mu.m. The protective overcoat is applied from an aqueous coating.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: October 12, 1999
    Assignee: Eastman Kodak Company
    Inventors: Hwei-ling Yau, Wendy S. Krzemien, Paul T. Lubberts
  • Patent number: 5965339
    Abstract: The present invention is a photographic element which includes a support, at least one light sensitive silver halide layer superposed on the support, and a protective overcoat layer overlying the light sensitive silver halide layer. The protective overcoat layer includes a hydrophilic binder and permanent matte particles. The permanent matte particles are greater than 80 mole percent isobutyl methacrylate.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: October 12, 1999
    Assignee: Eastman Kodak Company
    Inventors: Dennis E. Smith, Yongcai Wang, Alfred B. Fant, John L. Muehlbauer
  • Patent number: 5962207
    Abstract: The present invention is a motion picture film including a support having on one side thereof an antihalation undercoat and at least one silver halide emulsion layer. The motion picture film has on the opposite side thereof an antistatic layer and a protective overcoat. The protective overcoat includes a layer of a polyurethane binder having 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.sup.2, and a topcoat farthest from said support. The topcoat is an interpolymer having repeating units of A and B wherein A is a fluorine containing acrylate or methacrylate monomer and B is an ethylenically unsaturated monomer containing hydratable groups.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: October 5, 1999
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Brian A. Schell, Debasis Majumdar, Mario D. DeLaura
  • Patent number: 5958658
    Abstract: The present invention is an imaging element which includes a support, at least one light sensitive layer, and a surface protective layer containing a binder and polymer particles. The polymer particles are prepared by the process of mechanically forming droplets of an ethylenically unsaturated monomer having hydrophobic groups, the hydrophobic groups having a logP.sub.(calc) greater than a logP.sub.(calc) of the ethylenically unsaturated monomer by at least 1 unit, and a water insoluble lubricant. The droplets are polymerized in the presence of a dispersing agent so that the polymerized droplets have a size of less than 500 nm. The present invention also is an imaging element which includes a support, at least one imaging layer, and at least one layer containing a binder and polymer particles. The polymeric particles are prepared by the process of mechanically forming droplets of an ethylenically unsaturated monomer having a logP.sub.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: September 28, 1999
    Assignee: Eastman Kodak Company
    Inventors: Dennis E. Smith, Yongcai Wang, Charles C. Anderson, John L. Muehlbauer
  • Patent number: 5952165
    Abstract: This invention relates to a motion picture 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, 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.sup.2, and a topcoat farthest from the support which comprises gelatin-coated, latex particles.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: September 14, 1999
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Brian A. Schell
  • Patent number: 5935742
    Abstract: A photographic material comprising a cassette containing a processed photographic element, the photographic element comprising a support, at least one light sensitive silver halide layer and a protective overcoat layer on the light sensitive layer, the protective overcoat layer comprising a hydrophilic binder and permanent matte particles, the permanent matte particles comprising greater than 80 mole percent methyl methacrylate and having a mean particle size of from 1 to 1.8 .mu.m and a coating weight of from 70 to 250 mg/m.sup.2.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: August 10, 1999
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Dennis Edward Smith, Alfred Bruce Fant, Melvin Michael Kestner
  • Patent number: 5932405
    Abstract: The present invention is a photographic element which includes a support, at least silver halide light sensitive layer superposed on the support, and an outermost protective overcoat superposed on the support. The protective overcoat includes a water dispersible siloxane-containing polyurethane.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: August 3, 1999
    Assignee: Eastman Kodak Corporation
    Inventors: Charles C. Anderson, Brian A. Schell, Yongcai Wang, Mario D. DeLaura
  • Patent number: 5928848
    Abstract: The present invention is a photographic element including a support, having on one side thereof at least one silver halide emulsion layer, and having on the other side an antistatic layer, and a protective overcoat. The protective overcoat is farthest from the support; and is a continuous polyolefin coating.
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: July 27, 1999
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, Tamara K. Osburn, Charles H. Appell
  • Patent number: 5916741
    Abstract: The present invention provides a photographic element comprises a support, at least one hydrophilic light-sensitive layer, and a light-insensitive layer containing a binder and polymer matte particles having the formula:(A).sub.x (B).sub.y (C).sub.z (I)where A is a monofunctional ethylenically unsaturated monomer which forms a homopolymer with a Tg less than 20.degree. C., B is a monofunctional ethylenically unsaturated monomer which forms a homopolymer with a Tg greater than 60.degree. C., C is a monomer with two or more ethylenically unsaturated groups, x is about 10 to 95 mole %, y is less than 85 mole %, and z is about 5 to 90 mole %.
    Type: Grant
    Filed: May 26, 1997
    Date of Patent: June 29, 1999
    Assignee: Eastman Kodak Company
    Inventors: Dennis E. Smith, Yongcai Wang, Patrick M. Jeffries, James R. Bennett
  • Patent number: 5916737
    Abstract: A method for fabricating a liquid crystal display device comprising the steps of forming a patterning layer to be patterned on the a substrate; forming a protective layer on the patterning layer, the protective layer being provided to prevent the occurrence of a poor pattern; depositing a photoresist layer on the protective layer; patterning the photoresist layer to form a patterned photoresist layer; sequentially removing the protective layer and the patterning layer using the patterned photoresist layer as an etching mask; and removing the patterned photoresist layer. The method facilitates the formation of a smooth passivation layer surface since there is no step between the drain and pixel electrodes. As a result, constant brightness and high contrast can be obtained from a TFT-LCD device which is fabricated by the method of the present invention.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: June 29, 1999
    Assignee: Goldstar Co., Ltd.
    Inventor: Jin Ha Kim
  • Patent number: 5914161
    Abstract: Disclosed is a packaging material for a light-sensitive material, said packaging material comprising a multi-layered structure, wherein said multi-layered structure comprising a layer, said layer containing a polyethylene having a molecular weight distribution of 1.5 to 2.4 in an amount of 20 to 90% by weight of said layer.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: June 22, 1999
    Assignee: Konica Corporation
    Inventors: Naohito Naraoka, Yasuhisa Kanezashi
  • Patent number: 5914223
    Abstract: The present invention is a silver halide photographic element which includes a support, at least one light sensitive silver halide emulsion layer; and at least one light-insensitive protective layer. The light insenstive protective layer includes a hydrophilic binder, a colloidal silver particle and an ultraviolet ray absorbing polymer particle having a mean size of greater than 0.01 .mu.m. The ultraviolet ray absorbing polymer particle contains an ultraviolet ray absorber and a polymer derived from monomer A and less than 10 weight percent of monomer B, wherein monomer A represents ethylenically unsaturated monomers which form substantially water insoluble homopolymers, and monomer B represents ethylenically unsaturated monomers capable of forming water soluble homopolymers.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: June 22, 1999
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Alfred B. Fant, Gary W. Visconte, Kurt M. Schroeder
  • Patent number: 5914224
    Abstract: A silver halide photographic light-sensitive material is disclosed. It comprising at least one light-sensitive silver halide emulsion layer and at least one non-light-sensitive layer on a support and the non-light-sensitive layer contains porous fine particles of 400 mg per 1 m.sup.2 or more and the material is hardened utilizing at least one of vinyl sulfone hardener, carboxyl-activating hardener or polymeric hardener.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: June 22, 1999
    Assignee: Konica Corporation
    Inventors: Katsumasa Yamazaki, Takesi Nakamura
  • Patent number: 5910399
    Abstract: The present invention is a motion picture film which includes a support 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 and a protective overcoat. The protective overcoat includes a polyurethane binder having 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.sup.2, and a topcoat farthest from the support. The topcoat is formed by the coating and subsequent drying of a coating composition comprising gelatin-grafted polyurethane comprising gelatin covalently bound to a polyurethane through a grafting agent, wherein the ratio of gelatin to polyurethane is from 1:10 to 2:1.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: June 8, 1999
    Assignee: Eastman Kodak Company
    Inventors: Brian A. Schell, Charles C. Anderson
  • Patent number: 5882846
    Abstract: Infrared sensitive photographic elements comprise an opaque film support, an infrared sensitized silver halide emulsion layer and a hydrophilic colloid protective layer on one side of the film support, said protective layer comprising colloidal silica having an average particle size lower than 15 nanometers.The elements have an increased exposure latitude upon exposure to infrared laser diodes, and higher maximum density upon photographic processing.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: March 16, 1999
    Assignee: Imation Corp.
    Inventors: Alberto Vacca, Marino Rossi
  • Patent number: 5876910
    Abstract: The present invention is an imaging element which includes a support, at least one image forming layer superposed on the support and a protective overcoat superposed on the support. The protective overcoat is farthest from the support. The protective overcoat is formed by the coating and subsequent drying of a coating composition of an aqueous medium having therein a water dispersible siloxane-containing polyurethane.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: March 2, 1999
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Brian A. Schell, Yongcai Wang, Mario D. DeLaura
  • Patent number: 5876908
    Abstract: The present invention is an imaging element including a support having a front side and a back side, at least one backing layer on the back side of the support, at least one silver halide emulsion layer superposed on the front side of the support, an interlayer superposed on the silver halide emulsion layer having a thickness of between 0.2 .mu.m and 1.2 .mu.m and a stiffness ratio of the interlayer to the silver halide emulsion layer of from 2 to 15; and a protective overcoat layer superposed on the interlayer having a thickness of from 0.3 to 2 .mu.m. The ratio of the thickness of the interlayer to the protective overcoat layer is less than or equal to 1.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: March 2, 1999
    Assignee: Eastman Kodak Company
    Inventors: Justin Z. Gao, Andy H. Tsou, Charles C. Anderson
  • Patent number: 5869217
    Abstract: A silver halide photographic material which has a layer containing a swellable inorganic stratifying compound.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: February 9, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Toshiaki Aono
  • Patent number: 5866285
    Abstract: The present invention is an imaging element including a support, at least one image-forming layer and an auxiliary layer. The auxilary layer is formed by providing a coating composition of a fluoroolefin-vinyl ether copolymer dissolved in an organic medium, coating the coating composition on the support and drying the coating composition. The present invention also includes a coating composition for use in an imaging element including a fluoroolefin-vinyl ether copolymer dissolved in an organic medium.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: February 2, 1999
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Yongcai Wang
  • Patent number: 5866312
    Abstract: The present invention is a photographic element which includes a support, at least one silver halide emulsion layer, and a light-insensitive protective overcoat. The light insensitive protective overcoat includes a hydrophilic binder and polymer particles having a glass transition temperature of at least 70.degree. C. The polymer particles prepared by the process of mechanically forming oil-in-water droplets having a size less than 400 nm of an ethylenically unsaturated monomer having hydrophobic groups, the hydrophobic groups having a logP.sub.(calc) greater than a logP.sub.(calc) of the ethylenically unsaturated monomer by at least 1 unit in an aqueous medium. A hydrophilic colloid is added to the aqueous medium in an amount sufficient to render the polymer partice compatible with the hydrophilic binder. The droplets are polymerized to a size of less than 400 nm.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: February 2, 1999
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Dennis E. Smith, Alfred B. Fant
  • Patent number: 5858634
    Abstract: The present invention is a photographic element which includes a support, at least one silver halide emulsion layer; and at least one layer containing a binder and polymer particles. The polymeric particles are prepared by the process of mechanically forming droplets having a size less than 400 nm of an ethylenically unsaturated monomer having hydrophobic groups, the hydrophobic groups having a logP.sub.(calc) greater than a logP.sub.(calc) of the ethylenically unsaturated monomer by at least 1 unit, and polymerizing said droplets so that the polymerized droplets have a size of less than 400 nm. The present invention also is a photographic element which includes a support, at least one silver halide emulsion layer; and at least one layer containing a binder and polymer particles. The polymeric particles are prepared by the process of mechanically forming droplets having a size less than 400 nm of an ethylenically unsaturated monomer having a logP.sub.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: January 12, 1999
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Dennis E. Smith, Alfred B. Fant, John L. Muehlbauer
  • Patent number: 5856060
    Abstract: An image forming material is disclosed which comprises a support and provided thereon, an image forming layer and an image protective layer in that order, the image forming layer containing a colorant and a first binder resin, and the image protective layer containing fine particles in an amount of 2 to 150 mg/M.sup.2 and a second binder resin and having a thickness of 0.03 to 1.0 .mu.m, wherein an image is formed by exposing the material to a high density energy light to reduce adhesion between the image forming layer and the support and then removing the image forming layer at exposed portions.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: January 5, 1999
    Assignee: Konica Corporation
    Inventors: Tomonori Kawamura, Masataka Takimoto, Ai Katsuda, Katsuji Kondo
  • Patent number: 5853970
    Abstract: The present invention improves the conservation of a photographic product with a cellulose ester type support. The present invention involves coating on the support or the photographic product with a transparent film-forming aqueous composition. The composition is a fibrous alumino-silicate polymer of formula Al.sub.x Si.sub.y O.sub.z in which x:y is between 1 and 3, and z is between 2 and 6. The support can be treated before the application of the photographic layers (as a substratum or under-layer) or after the application of the photographic layers (as a top layer). It is also possible to treat an exposed, developed film by applying a top layer of the said composition.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: December 29, 1998
    Assignee: Eastman Kodak Company
    Inventors: Olivier J. Poncelet, Jeannine Rigola, Boualem Mekki
  • Patent number: 5853926
    Abstract: The present invention is an imaged photographic element having a protective overcoat thereon. The protective overcoat is formed by providing a photographic element having at least one silver halide light-sensitive emulsion layer; and applying an aqueous coating comprising polymer particles having an average size of 0.1 to 50 microns at a weight percent of 5 to 50 percent, a soft polymer latex binder at a weight percent of 1 to 3 percent, over the at least one silver halide light-sensitive emulsion layer. The silver halide light sensitive emulsion layer is developed to provide an imaged photographic element. The hydrophobic polymer particles is fused to form a protective overcoat.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: December 29, 1998
    Assignee: Eastman Kodak Company
    Inventors: Anne E. Bohan, Vito A. DePalma, William K. Goebel, Amy E. Jasek, Thomas H. Whitesides
  • Patent number: 5851722
    Abstract: The present invention provides an imaging element comprising in the order given on a hydrophilic base (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer and (iii) an antistress layer being in water permeable relationship with said image receiving layer and comprising gelatin, characterized in that said antistress layer comprises at least 30 mg/m.sup.2 of a matting agent with a weight average diameter of at least 3 .mu.m.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: December 22, 1998
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Paul Coppens, Guido Hauquier, Eric Verschueren, Eric Hoes
  • Patent number: 5846700
    Abstract: The present invention is a photographic element including a support, at least one silver halide image-forming layer; and a hydrophilic protective layer. The hydrophilic protective layer includes a hydrophilic colloid, and a fluoroolefin-vinyl ether copolymer having a glass transition temperature greater than 25.degree. C. and a hydroxyl number greater than 5.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: December 8, 1998
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Charles C. Anderson, James L. Bello
  • Patent number: 5846699
    Abstract: The present invention describes an imaging element having a support, and at least one layer formed from an aqueous coating composition containing a film forming binder. The film forming binder is a mixture of a polyurethane and a carboxylic acid containing polymer or copolymer having a glass transition temperature of at least 40.degree. C. and an acid number of 60 to 260. The carboxylic acid containing polymer or copolymer is reacted with ammonia or amine so that the coating composition has a pH of from 7 to 10.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: December 8, 1998
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Charles Chester Anderson
  • Patent number: 5843631
    Abstract: A silver halide photographic material is described, which comprises a support having provided thereon at least one light-sensitive silver halide emulsion layer and a magnetic recording layer in backing layers on the side of the support opposite to the side on which the silver halide emulsion layer is provided, wherein the layer on the farthest side from the support of the backing layers contains a binder and a sliding agent, and the weight ratio of the sliding agent/binder is from 1 to 1.times.10.sup.4.
    Type: Grant
    Filed: May 20, 1997
    Date of Patent: December 1, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Masatoshi Nakanishi, Akihiro Ikeyama, Masayoshi Toyoda
  • Patent number: 5837437
    Abstract: An aqueous developable chromogenic photographic element coated on a single dimensionally stable support wherein said element comprises in reactive association (1) an aqueous diffusible photographically useful organic compound or precursor to an aqueous diffusible photographically useful organic compound, (2) radiation sensitive silver halide, (3) a compound that forms or releases a dye, (4) hydrophilic binder, and (5) one or more contiguous overcoat layers devoid of silver halide wherein said one or more overcoat layers comprise hydrophilic binder at a level of at least 3 g/m.sup.2 is disclosed.
    Type: Grant
    Filed: March 12, 1996
    Date of Patent: November 17, 1998
    Assignee: Eastman Kodak Company
    Inventors: Ravi Sharma, John Texter
  • Patent number: 5824461
    Abstract: The present invention is an imaging element which includes a support, and at least one imaging layer superposed on the support. A protective overcoat is superposed on the support, and is formed by coating and subsequent drying of an aqueous coating composition having therein colloidal polymer particles having a glass transition temperature of greater than 20.degree. C. and a fluoropolyether including more than 90 mole % units selected from the group consisting of --CF.sub.2 --CF.sub.2 --O--, --CF.sub.2 --O--, --CF(CF.sub.3)--O--, and --CF.sub.2 --CF(CF.sub.3)--O--, and a functional group selected from the group consisting of COOH, --CH.sub.2 --OH, --CH.sub.2 --COOH, --CH.sub.2 --SO.sub.3 H, --CH.sub.2 --PO.sub.3 H, --(CH.sub.2 --CH.sub.2 --O)--H, and --(CH.sub.2 --CH(CH.sub.3)--O--)--H. The present invention includes the imaging element produced from the coating composition.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: October 20, 1998
    Assignee: Eastman Kodak Company
    Inventors: Brian A. Schell, Michael W. Orem, Yongcai Wang
  • Patent number: 5824464
    Abstract: The present invention is a photographic element which includes a support having a front surface and a back surface, and a silver halide imaging layer superposed on the front side of the support. A backing layer is superposed on the backside of the support and is formed by the coating and subsequent drying of an aqueous coating composition having therein a mixture of film-forming colloidal particles and non-film-forming colloidal particles and a fluoropolyether comprising more than 90 mole % units selected from the group consisting of --CF.sub.2 --CF.sub.2 --O--, --CF.sub.2 --O--, --CF(CF.sub.3)--O--, and --CF.sub.2 --CF(CF.sub.3)--O--, and a functional group selected from the group consisting of COOH, --CH.sub.2 --OH, --CH.sub.2 --COOH, --CH.sub.2 --SO.sub.3 H, --CH.sub.2 --PO.sub.3 H, --(CH.sub.2 --CH.sub.2 --O)--H, and --(CH.sub.2 --CH(CH.sub.3)--O--)--H.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: October 20, 1998
    Assignee: Eastman Kodak Company
    Inventors: Brian A. Schell, Michael W. Orem, Yongcai Wang