Polyester Or Polycarbonate Patents (Class 430/533)
  • Patent number: 6479222
    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 that becomes water-resistant in the final product without lamination or fusing. The present invention is also directed to a method of making a photographic print involving developing the photographic element.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: November 12, 2002
    Assignee: Eastman Kodak Company
    Inventors: Tamara K. Jones, Lloyd A. Lobo, Mridula Nair, Kevin M. O'connor, Tiecheng A. Qiao, Yongcai Wang, Thomas H. Whitesides, Hwei-Ling Yau
  • Patent number: 6475696
    Abstract: The invention relates to an imaging member comprising an image layer and a support comprising at least one layer comprising an inorganic particle having an aspect ratio of at least 10 to 1, a lateral dimension of between 0.01 &mgr;m and 5 &mgr;m, and a vertical dimension between 0. 5 nm and 10 nm, and polymeric resin.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: November 5, 2002
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Narasimharao Dontula, Dennis J. Massa, Thomas N. Blanton, Jose L. Garcia, Eric E. Arrington, Thaddeus S. Gula
  • Patent number: 6475713
    Abstract: The invention relates to an imaging member comprising at least two polymer sheets joined by solvent based thermoplastic adhesive applied to at least one said at least two polymer sheets between 15 and 50° C.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: November 5, 2002
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, Robert P. Bourdelais, Alphonse D. Camp, Thomas M. Smith
  • Publication number: 20020155397
    Abstract: The present invention provides: a base support in which, by kneading an ultraviolet light absorber into a transparent polyester film, there is no tendency of ultraviolet absorbents to bleed out an image-forming element using the base support.
    Type: Application
    Filed: December 18, 2001
    Publication date: October 24, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Tatsuya Nomura, Takanori Sato, Hideki Takaki
  • Patent number: 6468726
    Abstract: A photothermographic image-recording material having a good adhesion between a subbing layer and a support or an image-forming layer is described, which comprises a support, at least one subbing layer comprising a polyester provided on at least one side of the support and an image-forming layer provided on the subbing layer, wherein the polyester is a polyester having a glass transition temperature of from 40° C. to 100° C.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: October 22, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Haraoka, Sadao Fujikura
  • Patent number: 6465165
    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. A first coating of hydrophobic polymer particles having an average size of 0.01 to 1 microns, a melting temperature of from 55 to 200° C. at a weight percent of 30 to 95, and gelatin at a weight percent of 5 to 70 is applied to form a first layer over the silver halide light-sensitive emulsion layer. A second coating of abrasion resistant particles having an average size of from 0.01 to 1 microns is applied to form a second layer over the first layer. The photographic element is developed to provide an imaged photographic element. The first and second layers are fused to form a protective overcoat.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: October 15, 2002
    Assignee: Eastman Kodak Company
    Inventors: Christine J. Landry-Coltrain, Hwei-ling Yau, Linda M. Franklin
  • Patent number: 6461805
    Abstract: A photothermograpahic material is disclosed having light-sensitive silver halide grains, an organic silver salt, a reducing agent and a binder, wherein the photothermographic material comprises a silane compound represented by formula (1) or (2): formula (1) (R1O)m—Si—[ (L1)xR2]n formula (2) wherein R1, R2, R3, R4, R5, R6, R7 and R8 represent each an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group; L1, L2, L3 and L4 represent each a bivalent linkage group; m and n are each an integer of 1 to 3, provided that m+n is 4; p1 and p2 are each an integer of 1 to 3 and q1 and q2 are each 0, 1 or 2, provided that p1+q1 and p2+q2 are each 3; r1 and t are each 0 or an integer of 1 to 1000; and x is 0 or 1. The photothermographic material is used on a support.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: October 8, 2002
    Assignee: Konica Corporation
    Inventors: Takeshi Habu, Shu Nishiwaki, Tsuyoshi Mitsuhashi, Toshihisa Takeyama, Takuji Hasegawa
  • Patent number: 6455239
    Abstract: A surface treatment method for enhancing hydrophobicity of the surface of a film support is disclosed, comprising subjecting at least one side of the surface to a gas-discharge plasma treatment in a gas phase atmosphere comprising (a) an inert gas comprising argon or helium and (b) a reactive gas comprising a hydrocarbon gas or fluorinated hydrocarbon gas. There is also disclosed a photothermographic material by the use of the support having been subjected to the surface treatment.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: September 24, 2002
    Assignee: Konica Corporation
    Inventors: Kiyoshi Oishi, Kazuhiro Fukuda
  • Patent number: 6455240
    Abstract: A method of reducing the tendency toward formation of coating non-uniformities in the coating of multilayer photographic elements is disclosed. More particularly, the present invention involves the coating of a non-gelatin coating over a topmost gelatin layer in a photographic element. In one embodiment, a processing-solution-permeable overcoat is simultaneously coated with the emulsion layers onto a photographic substrate, which overcoat becomes water and stain resistant in the photochemically processed product. In the latter embodiment, the overcoat formulation comprises at least one water-dispersible hydrophobic polymer interspersed with a water-soluble polymer.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: September 24, 2002
    Assignee: Eastman Kodak Company
    Inventors: Ryan B. Adams, Lloyd A. Lobo, Mridula Nair, David C. Boris, Kevin M. Donovan
  • Publication number: 20020132197
    Abstract: An silver halide photothermographic light sensitive material comprising a support having thereon a undercoating layer and a photothermographic light-sensitive layer containing a light-sensitive silver halide, and organic silver salt, a reducing agent and a binder, wherein the undercoating layer contains fine particles having a mean primary particle size of 0.01 to 1.
    Type: Application
    Filed: December 7, 2001
    Publication date: September 19, 2002
    Inventors: Yasuyuki Motokui, Kenji Ohnuma, Hidetoshi Ezure, Takayuki Sasaki, Ichiro Kudo
  • Publication number: 20020132196
    Abstract: A method for controlling the width of a polyester film support comprising, in order, the steps of: (a) extruding a polyester resin using one or more extruders; (b) casting the resin on a casting wheel to form a polyester sheet; (c) stretching the polyester sheet along the machine direction by ratios of 3 to 5 times at temperatures ranging from above the glass transition temperature to below the thermal crystallization temperature, wherein the machine contains extended edge rollers (14) in a machine direction orientation device (drafter) at the point where stretching occurs; (d) stretching the polyester sheet along the transverse direction by ratios of 3 to 5 times at temperatures ranging from above the glass transition temperature to below the thermal crystallization temperature; and (e) heat setting the polyester sheet at temperatures ranging from 180 to 250 C. A polyester film support is also disclosed.
    Type: Application
    Filed: May 14, 2001
    Publication date: September 19, 2002
    Applicant: Eastman Kodak Company
    Inventors: Wen-Li A. Chen, Timothy F. Cilano, Larry K. Maier, Jeffrey P. Johnson
  • Patent number: 6451431
    Abstract: A photographic support comprising; a polyester base having a first and a second side; an antistatic layer superposed on the first side of the base; a gelatin layer superposed on the second side of the base; and an auxiliary layer overlying said antistatic layer comprising 20 to 80 percent by weight hydroxypropyl methyl cellulose and a second binder.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: September 17, 2002
    Assignee: Eastman Kodak Company
    Inventors: Brian K. Brady, Charles L. Bauer, Dennis J. Eichorst, Bradley K. Coltrain
  • Publication number: 20020123015
    Abstract: The invention relates to an imaging member comprising an image layer and a support comprising at least one layer comprising an inorganic particle having an aspect ratio of at least 10 to 1, a lateral dimension of between 0.01 &mgr;m and 5 &mgr;m, and a vertical dimension between 0.5 nm and 10 nm, and polymeric resin.
    Type: Application
    Filed: December 28, 2000
    Publication date: September 5, 2002
    Inventors: Debasis Majumdar, Narasimharao Dontula, Dennis J. Massa, Thomas N. Blanton, Jose L. Garcia, Eric E. Arrington, Thaddeus S. Gula
  • Publication number: 20020123014
    Abstract: A photographic element comprising a polyester support; an antistatic layer; and a transparent magnetic layer comprising a cellulose binder, ferromagnetic particles and a blocked isocyanate.
    Type: Application
    Filed: May 14, 2001
    Publication date: September 5, 2002
    Inventors: Brian K. Brady, Charles L. Bauer, Dennis J. Eichorst
  • Publication number: 20020122951
    Abstract: An imaging support comprising: a polyester support; an adhesive layer superposed to said support; and on the adhesive layer: an amine modified gelatin subbing layer, the amine modified gelatin having the formula: 1
    Type: Application
    Filed: May 14, 2001
    Publication date: September 5, 2002
    Applicant: Eastman Kodak Company
    Inventors: Charles L. Bauer, Janglin Chen, Kenneth G. Harbison, Hwei-Ling Yau
  • Patent number: 6440532
    Abstract: A biaxially oriented polyester film whose thermal shrinkage factors satisfy relationships represented by the following expressions (1) to (5) at the same time when it is heated at 120° C. for 20 seconds: 0.001≦SMD≦0.1  (1) −0.1≦STD≦0.1  (2) −0.05≦S45≦0.05  (3) −0.05≦S135≦0.05  (4) |S45−S135|≦0.05  (5) wherein SMD is a thermal shrinkage factor (%) in machine direction of the film under the above conditions, STD is a thermal shrinkage factor (%) in a direction perpendicular to that direction under the above conditions, and S45 and S135 are thermal shrinkage factors (%) in a 45° direction and a direction perpendicular to the 45° direction under the above conditions when the machine direction of the film is 0° and a direction perpendicular to that direction is 90°, respectively, and a production method thereof.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: August 27, 2002
    Assignee: Teijin Limited
    Inventors: Tatsuya Ogawa, Masayuki Fukuda, Toshifumi Ishikawa, Susumu Taguchi
  • Patent number: 6440655
    Abstract: A silver halide photographic element comprising at least one silver halide emulsion layer containing a dye-forming coupler which reacts with an oxidized color developing agent to form dye, said silver halide element further comprising a polyester support and an amido compound of Formula I wherein INH is a development inhibitor; LINK is a linking or timing group and m is 0, 1 or 2; R1 and R2 independently represent an aliphatic, aromatic or heterocyclic group, or R1 and R2 together with the nitrogen to which they are attached represent the atoms necessary to form a 5 or 6 membered ring or multiple ring system, or R1 and R2 are independently a —C(═O)(LINK)m—INH group, or are substituted with an —NR3aC(═O)—(LINK)m—INH group, with R3a being defined the same as R1 or R2, and wherein the compound of Formula I does not substantially react with oxidized developer to release INH.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: August 27, 2002
    Assignee: Eastman Kodak Company
    Inventors: Steven P. Szatynski, James H. Reynolds, Janet N. Younathan, George J. Burgmaier
  • Patent number: 6440548
    Abstract: A photographic element comprising a laminated base wherein said base comprises a voided polymer sheet having laminated thereto a biaxially oriented polyolefin sheet on the bottom of said polyester sheet and a biaxially oriented polyolefin sheet laminated to the top of said polyester sheet, wherein said photographic element has a bottom voided opacifying layer below at least one voided layer of said voided polymer sheet and a topside voided opacifying layer above said at least one voided layer of said voided polyester sheet.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: August 27, 2002
    Assignee: Eastman Kodak Company
    Inventors: Robert P. Bourdelais, Peter T. Aylward, Alphonse D. Camp
  • Patent number: 6436619
    Abstract: The invention relates to a material comprising a web wherein said web comprises at least one surface layer comprising polyether polymeric antistat, extrudable polymer, and compatibilizer wherein said surface layer has a roughness of greater than 0.3 Ra.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: August 20, 2002
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Thomas M. Laney, Jehuda Greener, Jose L. Garcia, Peter T. Aylward
  • Patent number: 6436604
    Abstract: The invention relates to a label comprising a silver halide imaging layer, a base and a strippable liner adhesively connected by an adhesive to said base, wherein said base has a stiffness of between 15 and 60 millinewtons and an L* is greater than 92.0, and wherein said liner has a stiffness of between 40 and 120 millinewtons.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: August 20, 2002
    Assignee: Eastman Kodak Company
    Inventors: Robert P. Bourdelais, Peter T. Aylward, Robert M. Sheppard
  • Patent number: 6436617
    Abstract: The present invention relates to photographic elements having a protective overcoat that resists fingerprints, common stains, and spills. The overcoat comprises an epoxy material, an acid polymer, a water-soluble hydrophilic binder and an associative thickener. In one embodiment, a photographic element includes a support, at least one silver halide emulsion layer superposed on the support and a processing-solution-permeable overcoat overlying the silver halide emulsion layer that becomes water-resistant in the final product without requiring lamination or fusing. The present invention is also directed to a method of making a print involving developing the photographic element.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: August 20, 2002
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Kevin M. O'Connor, Melvin M. Kestner, James L. Bello
  • Patent number: 6436622
    Abstract: Multilayer thermographic materials have improved adhesion between a polymeric support and film-forming polymer-containing layers disposed thereon. This improved adhesion is provided by including in the adhesion-promoting layer next to the support two or more polymers having specific properties. At least one of the polymers adheres the layer to the support, and at least one other polymer is compatible or of the same class as the film-forming polymer in the upper layer, such as a thermographic imaging layer. This adhesion-promoting layer can be provided as a very thin “carrier” layer during coating operations so that desired imaging effects and functional properties are obtained.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: August 20, 2002
    Assignee: Eastman Kodak Company
    Inventor: Thomas C. Geisler
  • Patent number: 6436219
    Abstract: A polyester film having an opaque first polyester layer having an optical density greater than 2.0 and a second white polyester layer, wherein the film is made by coextrusion. The opaque first layer preferably contains carbon black. The film is suitable for use as a base for a photographic sheet.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: August 20, 2002
    Assignee: DuPont Teijin Films U.S. Limited Partner
    Inventors: John Francis, David Edward Higgins
  • Patent number: 6432606
    Abstract: A red sensitive photographic recording material is disclosed having an emulsion layer with low silver halide and low binder content. It further comprises a polyester support having subbing layers on both sides and an anti-halation layer on the back side.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: August 13, 2002
    Assignee: Agfa-Gevaert
    Inventors: Roland Claes, Stefaan Lingier, Etienne Van Thillo
  • Publication number: 20020098451
    Abstract: A photothermographic material is disclosed, comprising a support having thereon at least an image forming layer and a first layer on the opposite side of the support from the image forming layer, wherein the first layer contains a vinyl type polymer latex and an aqueous-dispersible polymer selected from the group consisting of an aqueous-dispersible polyester, aqueous-dispersible polyurethane and aqueous-disperible cellulose.
    Type: Application
    Filed: September 6, 2001
    Publication date: July 25, 2002
    Inventors: Tadashi Arimoto, Takayuki Sasaki, Eiichi Ueda, Akihisa Nakajima, Chiaki Nagaike
  • Publication number: 20020098452
    Abstract: A photographic film comprising a base layer and at least one emulsion layer, the emulsion layer having a melting temperature that is within 4 degrees centigrade of the incubation temperature used in an accelerated core-set test.
    Type: Application
    Filed: December 6, 2000
    Publication date: July 25, 2002
    Inventors: Jehuda Greener, Yongcai Wang, Gary W. Visconte
  • Patent number: 6423483
    Abstract: A photographic element comprising a polyester support; an antistatic layer; and a transparent magnetic layer comprising a cellulose binder, ferromagnetic particles and a blocked isocyanate.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: July 23, 2002
    Assignee: Eastman Kodak Company
    Inventors: Brian K. Brady, Charles L. Bauer, Dennis J. Eichorst
  • Patent number: 6420102
    Abstract: Thermographic and photothermographic materials comprise a barrier layer to provide physical protection and to prevent migration of diffusible imaging components and by-products resulting from high temperature imaging and/or development. The barrier layer comprises a film-forming acrylic or methacrylic acid ester or amide polymer(s) that has a molecular weight of at least 8000 g/mole and comprises hydroxy functionality in from about 15 to 100 mole % of the acrylic or methacrylic acid ester or amide recurring units. This barrier layer is capable of retarding diffusion of mobile chemicals such as fatty carboxylic acids, developers, and toners. This barrier layer can also include at least one other film-forming polymer to provide a clear and scratch-resistant surface.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: July 16, 2002
    Assignee: Eastman Kodak Company
    Inventors: Charles L. Bauer, Michelle L. Horch, Anne M. Miller, David M. Teegarden, Bryan V. Hunt, Kumars Sakizadeh
  • Patent number: 6413705
    Abstract: A heat-developable recording material comprises a support, at least one undercoat layer and at least one image-forming layer, in this order, wherein the undercoat layer comprises: polyester resins containing at least two kinds of water-soluble and water-dispersible polyester resins, each of which has a different glass transition temperature (Tg); and fine particles having an average particle diameter (k) of from 0.1 &mgr;m to 2.0 &mgr;m, and the undercoat layer has an average film thickness (d) of from 0.05 &mgr;m to 1.0 &mgr;m, and (k)/(d) is in the range from 2.0 to 10.0.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: July 2, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Sadao Fujikura, Hiroshi Haraoka
  • Publication number: 20020076627
    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. A first coating of hydrophobic polymer particles having an average size of 0.01 to 1 microns, a melting temperature of from 55 to 200° C. at a weight percent of 30 to 95, and gelatin at a weight percent of 5 to 70 is applied to form a first layer over the silver halide light-sensitive emulsion layer. A second coating of abrasion resistant particles having an average size of from 0.01 to 1 microns is applied to form a second layer over the first layer. The photographic element is developed to provide an imaged photographic element. The first and second layers are fused to form a protective overcoat.
    Type: Application
    Filed: May 14, 1999
    Publication date: June 20, 2002
    Inventors: CHRISTINE J. LANDRY-COLTRAIN, HWE-LING YAU, LINDA M. FRANKLIN
  • Publication number: 20020076663
    Abstract: A heat-developable recording material comprises a support, at least one undercoat layer and at least one image-forming layer, in this order, wherein the undercoat layer comprises: polyester resins containing at least two kinds of water-soluble and water-dispersible polyester resins, each of which has a different glass transition temperature (Tg); and fine particles having an average particle diameter (k) of from 0.1 &mgr;m to 2.0 &mgr;m, and the undercoat layer has an average film thickness (d) of from 0.05 &mgr;m to 1.0 &mgr;m, and (k)/(d) is in the range from 2.0 to 10.0.
    Type: Application
    Filed: October 16, 2001
    Publication date: June 20, 2002
    Inventors: Sadao Fujikura, Hiroshi Haraoka
  • Publication number: 20020061479
    Abstract: Multilayer thermographic materials have improved adhesion between a polymeric support and film-forming polymer-containing layers disposed thereon. This improved adhesion is provided by including in the adhesion-promoting layer next to the support two or more polymers having specific properties. At least one of the polymers adheres the layer to the support, and at least one other polymer is compatible or of the same class as the film-forming polymer in the upper layer, such as a thermographic imaging layer. This adhesion-promoting layer can be provided as a very thin “carrier” layer during coating operations so that desired imaging effects and functional properties are obtained.
    Type: Application
    Filed: November 1, 2001
    Publication date: May 23, 2002
    Applicant: Eastman Kodak Company
    Inventor: Thomas C. Geisler
  • Patent number: 6391532
    Abstract: The invention relates to a paper comprising between 2 and 8% calcium carbonate in a paper having a surface roughness average of between 0.10 and 0.44 &mgr;m, a fiber length of the individual fibers of said paper of between 0.4 and 0.58 mm, and a density of between 1.05 and 1.20 grams/cc.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: May 21, 2002
    Assignee: Eastman Kodak Company
    Inventors: Suresh Sunderrajan, Sandra J. Dagan, Robert P. Bourdelais, Peter T. Aylward
  • Patent number: 6383729
    Abstract: A polyester film is disclosed, exhibiting a minimum value of not more than 0.15 with respect to the tan &dgr; value obtained at a frequency of 0.01 Hz within the range of 100 to 160° C., the tan &dgr; being determined in a tensile viscoelasticity measurement. A photographic support and photothermographic material using this polyester film are also disclosed, which exhibits superior dimensional stability even when subjected to thermal development at a high temperature and little roll set curl when used in a roll form.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: May 7, 2002
    Assignee: Konica Corporation
    Inventors: Kenji Ohnuma, Hidetoshi Ezure, Yuji Hosoi
  • Patent number: 6376165
    Abstract: A method of preparing a photothermographic material, comprising a support having thereon at least a layer, the method comprising the steps of: coating a coating solution containing an organic silver salt, a photosensitive silver halide and a reducing agent on the support to form a coated material and subjecting the coated material to a thermal treatment at a temperature of 40 to 120° C. under a tension of 0.01 to 30 kg/cm2.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: April 23, 2002
    Assignee: Konica Corporation
    Inventors: Hidetoshi Ezure, Kenji Ohnuma, Yuji Hosoi
  • Patent number: 6376160
    Abstract: The present invention relates to photographic elements having a protective overcoat that resists fingerprints, common stains, and spills. The overcoat comprises an epoxy material, an acid polymer, and a water-soluble hydrophilic binder. In one embodiment, a photographic element includes a support, at least one silver halide emulsion layer superposed on the support and a processing-solution-permeable overcoat overlying the silver halide emulsion layer that becomes water-resistant in the final product without requiring lamination or fusing. The present invention is also directed to a method of making a print involving developing the photographic element.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: April 23, 2002
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Kevin M. O'Connor, Melvin M. Kestner, James L. Bello
  • Publication number: 20020045137
    Abstract: Photographic silver halide materials are prepared in a more economical and environmentally acceptable manner by using a specific matting agent in a hydrophilic subbing layer between a polymeric support and one or more silver halide emulsion layers. The matting agent has an average particle size of at least 1 &mgr;m and up to about 10 &mgr;m and a glass transition temperature of at least 120° C.
    Type: Application
    Filed: August 17, 2001
    Publication date: April 18, 2002
    Inventors: Dennis E. Smith, Patrick M. Lynch, Pedro R. Quinones, Eric J. Adsit
  • Publication number: 20020042031
    Abstract: A photothermographic image-recording material having a good adhesion between a subbing layer and a support or an image-forming layer is described, which comprises a support, at least one subbing layer comprising a polyester provided on at least one side of the support and an image-forming layer provided on the subbing layer, wherein the polyester is a polyester having a glass transition temperature of from 40° C. to 100° C.
    Type: Application
    Filed: July 18, 2001
    Publication date: April 11, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Hiroshi Haraoka, Sadao Fujikura
  • Publication number: 20020039710
    Abstract: Disclosed are a polyester support excellent in cutting properties in a photofinishing laboratory, which has both transverse direction (TD) and machine direction (MD) breaking strengths of from 5 kg/mm2 to 18 kg/mm2, and both TD and MD breaking elongations of from 20% to 140%, and a silver halide photographic material using the support.
    Type: Application
    Filed: December 27, 2000
    Publication date: April 4, 2002
    Inventor: Kiyokazu Hashimoto
  • Publication number: 20020037483
    Abstract: A polyester film is disclosed comprising on its upper side a latex subbing layer, and a gelatin subbing layer which contains a black spacing agent. This polyester film can be advantageously used as support for several imaging elements, such as photographic materials, (photo)thermographic materials, and ink jet recording elements.
    Type: Application
    Filed: June 26, 2001
    Publication date: March 28, 2002
    Inventors: Roland Claes, Etienne Van Thillo
  • Patent number: 6355404
    Abstract: The invention relates to a display material comprising a base, said base comprising a polyester sheet comprising at least one voided polyester diffusion layer, at least one topside photosensitive silver halide layer on the topside of said base and at least one bottom side photosensitive layer on the bottom side of said base, below said at least one bottom side emulsion layer a tone enhancing layer, and below said tone enhancing layer an antihalation layer, wherein said display material has a light transmission of between 35 and 60 percent in the developed Dmin areas of the display material.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: March 12, 2002
    Assignee: Eastman Kodak Company
    Inventors: Alphonse D. Camp, Peter T. Aylward, Robert P. Bourdelais, Thomas M. Laney, John L. Pawlak, Gary J. McSweeney
  • Patent number: 6355405
    Abstract: Multilayer articles (including imaging elements) have improved adhesion between a polymeric support and film-forming polymer-containing layers disposed thereon. This improved adhesion is provided by including in the adhesion-promoting layer next to the support two or more polymers specific properties. At least one of the polymers adheres the layer to the support, and at least one other polymer is compatible or of the same class as the film-forming polymer in the upper layer. This adhesion-promoting layer can be provided as a very thin “carrier” layer during coating operations so that desired sensitometric effects and functional properties are obtained. Preferred imaging elements having such adhesion-promoting layers are photothermographic films.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: March 12, 2002
    Assignee: Eastman Kodak Company
    Inventors: Thomas J. Ludemann, Gary E. LaBelle, Thomas C. Geisler, Jerry L. Warren, Anne E. Crump, Aparna V. Bhave
  • Patent number: 6355403
    Abstract: This invention relates to a photographic element comprising a base having a reflection surface on each side having a spectral transmission of less than 10% and at least one photosensitive silver halide containing layer on each side wherein said photographic element has a speed less than 50 ASA.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: March 12, 2002
    Assignee: Eastman Kodak Company
    Inventors: Robert P. Bourdelais, Alphonse D. Camp, Peter T. Aylward
  • Patent number: 6352820
    Abstract: Thermographic and photothermographic materials comprise a barrier layer to provide physical protection and to prevent migration of diffusible imaging components and by-products resulting from high temperature development. The barrier layer comprises a film-forming, water-insoluble aromatic polyester that has a molecular weight of at least 10,000 g/mole and is capable of retarding diffusion of mobile chemicals such as fatty acids, developers and toners. This polymer can also be present in admixture with another film-forming polymer to provide a clear and scratch-resistance surface.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: March 5, 2002
    Assignee: Eastman Kodak Company
    Inventors: Charles L. Bauer, Michelle L. Horch, Anne M. Miller, Paul D. Yacobucci, Takuzo Ishida
  • Patent number: 6350561
    Abstract: Thermographic and photothermographic materials comprise a surface barrier layer to provide physical protection and to prevent migration of diffusible imaging components and by-products resulting from high temperature development. The barrier layer comprises a film-forming acrylate or methacrylate polymer(s) that has a molecular weight of at least 8000 g/mole and comprises epoxy functionality and is capable of retarding diffusion of mobile chemicals such as fatty acids. This polymer is preferably present in admixture with at least one other film-forming polymer to provide a clear and scratch-resistance surface film.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: February 26, 2002
    Assignee: Eastman Kodak Company
    Inventors: Anne M. Miller, Michelle L. Horch, Charles L. Bauer, David M. Teegarden
  • Patent number: 6348304
    Abstract: The invention relates to a photographic element comprising at least one layer of photosensitive silver halide, a base material wherein said base material comprises at least one bottom sheet of biaxially oriented polymer sheet and deformable tie layer material, wherein said deformable tie layer material yield stress of between 6 and 10 MPa in compression which is less than 10% the yield stress of any of the other layers in the element.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: February 19, 2002
    Assignee: Eastman Kodak Company
    Inventors: Thaddeus S. Gula, Richard C. McElroy, Mamie Kam-Ng
  • Patent number: 6348305
    Abstract: A photographic element comprising a film support base, an adhesion promoting layer, a subbing layer and at least one light-sensitive silver halide emulsion layer, wherein the adhesion promoting layer is close to the support and contains a silane compound and a polyurethane, and the subbing layer, selected within the group consisting of a hydrophilic colloidal layer or a layer comprising a continuous gelled network of inorganic particles, is positioned between the adhesion promoting layer and the emulsion layer. The present invention also refers to a photographic element comprising a film support base having coated on one side thereof at least one light-sensitive silver halide emulsion layer and on the opposite side thereof an adhesion promoting layer and at least one auxiliary layer, wherein the adhesion promoting layer is close to the support and contains a silane compound and a polyurethane.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: February 19, 2002
    Assignee: Ferrania, S.p.A.
    Inventors: Paola Puppo, Alberto Valsecchi, Carlo Barlocco
  • Publication number: 20020018969
    Abstract: The present invention relates to photographic elements, including photographic prints, having a protective overcoat that resists fingerprints, common stains, and spills. More particularly, the present invention provides a processing-solution-permeable protective overcoat that is water resistant in the final processed product and which, at the same time, provides improved wet-abrasion resistance.
    Type: Application
    Filed: March 13, 2001
    Publication date: February 14, 2002
    Inventors: Tiecheng A. Qiao, Joseph S. Sedita, Mridula Nair, Brian J. Kelley, Yongcai Wang
  • Publication number: 20020018957
    Abstract: The invention relates to an element consisting essentially of a photographic element comprising a base material having an upper surface comprising an oriented sheet, at least one photosensitive silver halide layer, and at least one sharpness enhancing agent above said photosensitive silver halide layer.
    Type: Application
    Filed: July 13, 2001
    Publication date: February 14, 2002
    Inventors: Peter T. Aylward, Alphonse D. Camp, Robert P. Bourdelais, Gary J. McSweeney
  • Patent number: 6346369
    Abstract: The present invention is an imaging element which includes a support and at least one imaging layer superposed on the support. The imaging layer includes a scratch resistant outermost layer either overlying the imaging layer or on the side opposite the imaging layer, and is composed of a ductile polymer having a modulus greater than 100 MPa measured at 20° C. and a tensile elongation to break greater than 50 percent, and a stiff filler having a modulus greater than 10 GPa at a volume concentration in the scratch resistant layer of 30 to 60%. The scratch resistant layer has a thickness of at least 0.5 &mgr;m.
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: February 12, 2002
    Assignee: Eastman Kodak Company
    Inventors: Andy H. Tsou, Charles C. Anderson, Joseph S. Sedita