Polymer Of Unsaturated Ester Or Halide Patents (Class 430/535)
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Patent number: 5580709Abstract: Disclosed is a film constituted of a polyester, said film having a degree of roll set curl of not higher than 135 m.sup.-1 after being subjected to heat treatment, and having a degree of recovery curl of not higher than 45 m.sup.-1 after being subjected to hot water bath treatment.Type: GrantFiled: September 14, 1994Date of Patent: December 3, 1996Assignee: Konica CorporationInventors: Hideyuki Kobayashi, Takatoshi Yajima, Kenji Nakanishi, Hiromitsu Araki, Hiroshi Naito, Yoshioki Okubo, Tetsutaro Hashimura
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Patent number: 5567576Abstract: A photographic support having good adhesion to a photographic emulsion layer formed thereon without physical surface modification. The support comprises a uniaxially or biaxially stretched polyester film and has at least (1) a main layer containing a polyester and (2) one or two surface layers. At least one of the surface layers comprises a substantially noncrystalline polyester. Furthermore, when used in the form of a roll film, substantially no curling of the support remains upon development.Type: GrantFiled: May 23, 1995Date of Patent: October 22, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Fumiyuki Suzuki, Toshimitu Okutu, Masaaki Otoshi
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Patent number: 5561034Abstract: A photographic material is provided comprising a support, a subbing layer, at least one hydrophilic gelatinous silver halide emulsion layer, optionally one or more other hydrophilic gelatinous layer(s) and a core-shell latex polymer, comprising a core (co)polymer and a shell (co)polymer characterized in that(i) said core-shell latex is present in at least one of said hydrophilic gelatinous layers,(ii) said shell (co)polymer comprises moieties A derived from at least one ethylenically unsaturated monomer having a reactive methylene group and(iii) said moieties A present in said shell (co)polymer make up between 1 and 30% by weight of all moieties present in both said core and said shell (co)polymer and(iv) said moieties A present in said shell (co)polymer make up between 2 and 50% of all moieties present in said shell (co)polymer.The material shows both high dimensional stability and high scratch resistance.Type: GrantFiled: July 17, 1995Date of Patent: October 1, 1996Assignee: Agfa-Gevaert, N.V.Inventors: Guido Desie, Michael M uller, Stefaan Lingier
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Patent number: 5554447Abstract: A conductive substrate for use in a photographic element comprises a polyethylene terephthalate support coated with 0.01-10 g/m.sup.2 of a conductive layer having a low surface energy during coating and a high surface energy after coating which is the reaction product of (i) a conductive crosslinkable polymer with charge carrying groups such as sulfonic acid groups, (ii) a volatile amine and (iii) a crosslinking agent such as a polyfunctional aziridine.Type: GrantFiled: June 5, 1995Date of Patent: September 10, 1996Assignee: Sterling Diagnostic Imaging, Inc.Inventors: John H. Bayless, Jr., Donald K. Johnes
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Patent number: 5554494Abstract: A silver halide photographic material comprising a silver halide emulsion layer and a hydrophobic backing layer provided on a support. The hydrophobic backing layer is formed by coating core/shell polymer particles. The core comprises a cross-linked polymer. The shell comprises an essentially not cross-linked polymer.Type: GrantFiled: June 23, 1995Date of Patent: September 10, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Kentaro Shiratsuchi, Tsukasa Yamada, Satoru Toda
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Patent number: 5543287Abstract: A silver halide photographic material and a method for processing the same are disclosed. The silver halide photographic material has a support and a silver halide emulsion layer. The emulsion layer contains polymer latex bonded with gelatin and not less than 70 wt. % of the polymer latex is present. Dimensional stability is improved by the combination of a high portion of polymer latex with the gelatin.Type: GrantFiled: January 13, 1995Date of Patent: August 6, 1996Assignee: Konica CorporationInventor: Takeo Arai
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Patent number: 5536627Abstract: A photographic element comprising a support having a front side and a back side, an image forming layer on the front side of the support, a protective overcoat on the front side of the Support further removed from the support than the image forming layer, the protective overcoat comprising process surviving matte particles in a hydrophilic binder, the matte particles having a Rockwell hardness of less than M90, the back side of the support having a protective overcoat layer, the protective overcoat layer being the layer furthest removed from the back side of the support and comprising a hydrophobic material having a Delta haze less than 30%.Type: GrantFiled: March 21, 1995Date of Patent: July 16, 1996Assignee: Eastman Kodak CompanyInventors: Yongcai Wang, Alfred B. Fant, Dennis E. Smith
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Patent number: 5512103Abstract: The invention provides a cyan color producing silver halide emulsion layer or a magenta color producing silver halide emulsion layer wherein said at least one layer has an exposure range of at least 0.6 log E from the point where the instantaneous contrast is 1.0 and wherein the instantaneous contrast of said layer increases as a function of increasing exposure over at least 70 percent of said exposure range.Type: GrantFiled: January 19, 1995Date of Patent: April 30, 1996Assignee: Eastman Kodak CompanyInventors: James L. Edwards, Eric L. Bell, Benjamin T. Chen, Richard L. Parton
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Patent number: 5510233Abstract: A photographic material comprises a support of a polyester film, a first subbing layer provided thereon, a second subbing layer comprising gelatin provided on the first subbing layer and a photographic layer provided on the second subbing layer. The first subbing layer is a layer of polyurethane latex cured with an epoxy compound or a dichloro-s-triazine derivative, otherwise the first subbing layer comprises a polymer which has breaking elongation of not more than 300% or stress at 100% elongation of not less than 130 kg/cm.sup.2.Type: GrantFiled: September 27, 1994Date of Patent: April 23, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Ken Nakanishi, Tadashi Takehana, Hiroyuki Tamaki, Sumio Nishikawa
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Patent number: 5491052Abstract: It has been discovered that when polyalkylene oxide compounds or block polymeric or block oligomeric surface active compounds comprising at least a polyoxypropylene (POP) block and a polyoxyethylene (POE) block are added to conventional dispersions of yellow couplers (that is dispersions in which the dispersed particles have a particle size of 0.1 to 0.6 .mu.m), such dispersions in a coated silver halide photographic element produce substantially higher dye yield compared to the conventional dispersion without any additive. Further, the yellow dye formed from such dispersions containing the addenda of this invention are substantially more light stable compared to dispersions that does not contain such addenda.The invention is carried out just by adding required amounts of the said polyoxyethylene (POE)--polyoxypropylene (POP) compound to a preformed milled coupler dispersion prior to coating the photographic element.Type: GrantFiled: June 7, 1995Date of Patent: February 13, 1996Assignee: Eastman Kodak CompanyInventors: James P. Van Meter, Pranab Bagchi, Brian Thomas, Thomas A. Rosiek
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Patent number: 5484692Abstract: A silver halide photographic material comprising a support having provided thereon at least one layer, wherein said at least one layer contains at least one compound which is represented by the following formula (1) and is liquid at 25.degree. C.: ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents a hydrogen atom, an unsubstituted unsaturated straight-chain aliphatic group, or an unsubstituted branched alkyl group; provided that both R.sub.1 and R.sub.2 must not be hydrogen atoms and that the sum of the carbon atoms in R.sub.1 and R.sub.2 is 18 or more.Type: GrantFiled: August 24, 1994Date of Patent: January 16, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Akio Mitsui, Hiroo Takizawa
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Patent number: 5453349Abstract: A package of photographic light-sensitive film is disclosed. The package comprises a cartridge enclosing a spool and a stripe of a photographic light-sensitive film rolled up on said spool, in which the cross sectional area of the cartridge is not larger than 370 mm.sup.2, and the cross sectional area of the spool is not larger than 95 mm.sup.2. The free space ratio V in the cartridge calculated by the following equations is not more than 0.Type: GrantFiled: June 30, 1994Date of Patent: September 26, 1995Assignee: Konica CorporationInventors: Masahito Takada, Takatoshi Yajima, Hideyuki Kobayashi
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Patent number: 5418118Abstract: The invention provides a cyan color producing silver halide emulsion layer or a magenta color producing silver halide emulsion layer wherein said at least one layer has an exposure range of at least 0.6 log E from the point where the instantaneous contrast is 1.0 and wherein the instantaneous contrast of said layer increases as a function of increasing exposure over at least 70 percent of said exposure range.Type: GrantFiled: February 18, 1994Date of Patent: May 23, 1995Assignee: Eastman Kodak CompanyInventors: James L. Edwards, Eric L. Bell, Benjamin T. Chen, Richard L. Parton
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Patent number: 5415987Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having thereon a silver halide emulsion layer and a hydrophilic colloid layer provided at the farthest position from the surface of the support on which the emulsion layer is provided. In the light-sensitive material, the silver halide emulsion layer contains tabular silver halide grains each having an aspect ratio of not less than 3; and the hydrophilic colloid layer contains a polymer latex comprising a polymer which comprises a repeating unit derived from a monomer having a solubility in water of not higher than 0.025 % in weight at 25.degree. C.Type: GrantFiled: April 8, 1994Date of Patent: May 16, 1995Assignee: Konica CorporationInventor: Kazuya Tsukada
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Patent number: 5411843Abstract: A photographic material comprising at least one silver halide emulsion layer and a copolyester support-said copolyester comprising polyether group(s) in the side chain is disclosed.Preferably the copolyester is prepared by copolycondesing diol moieties that comprise a polyether group substituted with a sulfonic acid group in acid or salt form into the copolyester.Type: GrantFiled: September 20, 1993Date of Patent: May 2, 1995Assignee: AGFA-Gevaert, N.V.Inventors: August Marien, Marc Stevens, Joannes Verheijen
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Patent number: 5393652Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having thereon a silver halide emulsion layer and optionally having another layer, and the emulsion layer or the other layer contains a kind of polymer latex comprising a polymer having a repeating unit derived from a monomer having a solubility in water at 25.degree. C. of not higher than 0.025% by weight, and said support comprises polyethylene-2,6-naphthalate and has a thickness of from 70 .mu.m to 120 .mu.m.Type: GrantFiled: April 1, 1994Date of Patent: February 28, 1995Assignee: Konica CorporationInventor: Toshiyuki Marui
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Patent number: 5389493Abstract: A dye-receiving resin for sublimation transfer image receiving materials, which mainly constitutes an image receiving layer of the sublimation transfer image receiving materials, said resin being a polyester resin comprising, as a main dicarboxylic acid component, an aromatic dicarboxylic acid component, and an alicyclic glycol component in glycol component, and an image receiving layer comprising said resin shows high dye-receiving sensitivity, is superior in durability and preservation stability of images transferred, and can provide high-quality sublimation transfer image receiving materials.Type: GrantFiled: February 25, 1994Date of Patent: February 14, 1995Assignee: Toyo Boseki Kabushiki KaishaInventors: Haruo Asai, Mitsuru Kuwabara, Nobukazu Kotera, Hiroshi Fujimoto
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Patent number: 5387501Abstract: Disclosed is a support for a photographic material which comprises a multilayer film in which a layer of a copolymerized polyester is laminated on at least one surface of a polyester layer, wherein the copolymerized polyester contains an aromatic dicarboxylic acid having a metal sulfonate group as a copolymer component in an amount of 2 to 7 mole % based on all ester bond units and further a polyalkylene glycol as a copolymer component in an amount of 3 to 10% by weight based on the total weight of a polyester which is a reaction product.Type: GrantFiled: April 7, 1994Date of Patent: February 7, 1995Assignee: Konica CorporationInventors: Takatoshi Yajima, Kenji Nakanishi, Hiromitsu Araki, Hideyuki Kobayashi, Yoshioki Okubo, Tetsutaro Hashimura, Hiroshi Naito
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Patent number: 5376518Abstract: A photographic element that is useful as an imaging master in the field of graphic arts is comprised of a dimensionally-stable polyester film having a radiation-sensitive silver halide emulsion layer on one side thereof and having on the opposite side, in order, a latex subbing layer and a backing layer. The backing layer is comprised of gelatin, a matting agent, a filter dye and a blocked gelatin-hardening agent. In the manufacture of the photographic element, a high temperature heating step is employed to activate the blocked gelatin-hardening agent and thereby harden the backing layer.Type: GrantFiled: May 18, 1994Date of Patent: December 27, 1994Assignee: Eastman Kodak CompanyInventors: David F. Jennings, Charles C. Anderson, Benneth C. Onuh, Mario D. DeLaura
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Patent number: 5368997Abstract: A silver halide photographic material comprises a support and at least one silver halide emulsion layer provided thereon. The support is essentially composed of poly(ethylene-2,6-naphthalate) and has Young's modulus of 550 to 650 kg/mm.sup.2 in both lengthwise direction and widthwise direction and breaking elongation of not less than 70%.Type: GrantFiled: March 11, 1994Date of Patent: November 29, 1994Assignee: Fuji Photo Film Co., Ltd.Inventor: Fumio Kawamoto
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Patent number: 5358834Abstract: A photographic element that is useful as an imaging master in the field of graphic arts is comprised of a dimensionally-stable polyester film having a radiation-sensitive silver halide emulsion layer on one side thereof and having on the opposite side, in order, a latex subbing layer and a backing layer. The backing layer is comprised of gelatin, a matting agent, a filter dye and a blocked gelatin-hardening agent. In the manufacture of the photographic element, a high temperature heating step is employed to activate the blocked gelatin-hardening agent and thereby harden the backing layer.Type: GrantFiled: September 23, 1993Date of Patent: October 25, 1994Assignee: Eastman Kodak CompanyInventors: David F. Jennings, Charles C. Anderson, Benneth C. Onuh, Mario D. DeLaura
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Patent number: 5344751Abstract: A coating of a mixture of sodium metasilicate together with a silica sol and a silane coupling agent provides antistatic protection when overcoated with a gelatin containing photographic construction.Type: GrantFiled: May 28, 1993Date of Patent: September 6, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventor: Robert L. Carlson
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Patent number: 5306606Abstract: Disclosed is a biaxially stretched polyester film which comprises a polyester film and a coating layer composed of a resin composition comprising (A) an acrylic polymer and/or (B) a polyester copolymer and at least (C) a polymer containing a monomer having a sulfonic acid group neutralized with an organic amine in its recurring unit or (D) a polymer containing a monomer having a sulfonic acid group neutralized with ammonium on at least one surface of the polyester film.Type: GrantFiled: December 23, 1991Date of Patent: April 26, 1994Assignee: Konica CorporationInventors: Noriki Tachibana, Yoshihiro Wada, Tohru Kobayashi
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Patent number: 5298192Abstract: Disclosed is a subbing composition for polyesters, comprising a dye, a hydrophilic colloid, and a latex, wherein said dye is dispersed in the form of fine solid grains which are substantially insoluble in water at a pH of 6 or less, and are substantially soluble in water at a pH of 8 or more, and said latex has a glass transition temperature of 35.degree. C. or lower, and a method for coating thereof. In addition, a subbing layer-coated article is disclosed wherein said subbing composition is coated on a polyester base. Finally, a silver halide photographic material is disclosed wherein a photographic emulsion layer is coated on said subbing layer-coated article.Type: GrantFiled: May 10, 1993Date of Patent: March 29, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasushi Hattori, Nobuyuki Sugiyama, Akira Hatakeyama
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Patent number: 5244780Abstract: A polymeric film substrate is first modified, then coated with a polyalkyl acrylate/gelatin layer to improve the wet adhesion of the layer to the substrate. The layer may itself contain a photographic emulsion or emulsion layers may be adhered to that layer.Type: GrantFiled: May 28, 1991Date of Patent: September 14, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mark A. Strobel, Robert L. Carlson, Steven L. Ginkel, Jeffrey L. Solomon
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Patent number: 5232825Abstract: Disclosed is a subbing composition for polyesters, comprising a dye, a hydrophilic colloid, and a latex, wherein said dye is dispersed in the form of fine solid grains which are substantially insoluble in water at a pH of 6 or less, and are substantially soluble in water at a pH of 8 or more, and said latex has a glass transition temperature of 35.degree. C. or lower, and a method for coating thereof. In addition, a subbing layer-coated article is disclosed wherein said subbing composition is coated on a polyester base. Finally, a silver halide photographic material is disclosed wherein a photographic emulsion layer is coated on said subbing layer-coated article.Type: GrantFiled: April 3, 1992Date of Patent: August 3, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasushi Hattori, Nobuyuki Sugiyama, Akira Hatakeyama
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Patent number: 5219718Abstract: There is disclosed a silver halide photographic material having the improved drying, anticurl and pin hole properties. The photographic material comprises (a) a support, (b) at least one silver halide emulsion layer containing hydrophilic colloid as a binder provided on one side of the support (side A), and (c) at least one light-insensitive layer containing hydrophilic colloid as a binder provided on the side of the support opposite from the side with the silver halide emulsion layer (side B), wherein a weight ratio of the hydrophilic colloid contained in the at least one light-insensitive layer on side B to the hydrophilic colloid in the at least one silver halide emulsion layer on side A is 0.3 or greater, and the light-insensitive layer on side B has a water content of 0.2 g or less per gram of hydrophilic colloid after finishing a rinsing step in development processing.Type: GrantFiled: May 21, 1992Date of Patent: June 15, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Hatakeyama, Takashi Naoi, Kunio Ishigaki
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Patent number: 5180658Abstract: Disclosed are a white polyester composition comprising a polyester containing a titanium dioxide, and the titanium dioxide being one subjected to a heat treatment at a temperature of 350.degree. C. or higher after at least one of an inorganic surface treatment and an organic surface treatment, and a support for photography having a polyester layer comprising the white polyester composition.Type: GrantFiled: March 26, 1992Date of Patent: January 19, 1993Assignee: Konica CorporationInventors: Kazuto Kiyohara, Hiromitsu Araki, Toshiaki Yamazaki, Ichiya Harada
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Patent number: 5176972Abstract: An imaging medium comprises means for providing a light-reflecting layer, an image-receiving layer for receiving image-forming components, a transparent layer superposed over the image-receiving layer such that an image in the image-receiving layer can be viewed through the transparent layer against the light-reflecting layer, and an image enhancement layer disposed between the image-receiving layer and the transparent layer, the image enhancement layer having a refractive index less than that of the transparent layer and the image-receiving layer and not greater than about 1.43. The image enhancement layer decreases internal reflections within the medium and thereby improves the quality of the image seen. The imaging medium can be used as the imaging element of a diffusion transfer process film unit.Type: GrantFiled: September 11, 1991Date of Patent: January 5, 1993Assignee: Polaroid CorporationInventors: Iris B. K. Bloom, Richard A. Minns, William T. Plummer
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Patent number: 5096803Abstract: A method for producing a silver halide photographic material which comprises the steps of:(a) coating hydrophilic colloid coating liquid on a polyester support;(b) forming a hydrophilic colloid layer by drying said hydrophilic coating liquid, when A is not more than 300, in an atmosphere having a relative humidity of not more than 50% and such that the ratio A/B is at least 18whereinA is determined by the following formula:A=(M/S).times.100wherein M represents the moisture content by weight of said hydrophilic colloid layer on said support and S represents the solid weight of said hydrophilic colloid layer on said support, andB is the drying time until A is not more than 8 expressed in seconds; and(C) heat treating said coated supported from step (b) at a temperature of at least 30.degree. C. in a atmosphere having an absolute humidity of not more than 1%.The method of the present invention provides silver halide photographic materials which have improved dimensional stability.Type: GrantFiled: April 18, 1990Date of Patent: March 17, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Satoshi Kanetake, Shinichi Hashimoto
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Patent number: 5094909Abstract: Disclosed is a plastic film comprising a support and an antistatic layer, provided thereon, comprising a reaction product of a water-soluble electroconductive polymer, hydrophobic polymer particles and a hardening agent, characterized in that the hydrophobic polymer particles are stabilized by a surfactant having at least five ethylene oxide chains.Type: GrantFiled: June 6, 1990Date of Patent: March 10, 1992Assignee: Konica CorporationInventors: Noriki Tachibana, Yoichi Saito, Toshiaki Yamazaki
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Patent number: 5061611Abstract: A method of preparing a light sensitive silver halide phtographic material is disclosed. The photographic material comprises a polyester support having a hydrophobic polymer layer containing a vinylidene chloride copolymer and at least one hydrophilic polymer layer. The method comprises steps of coating a hydrophilic polymer layer onto the polyester support, drying the layer until a water content of the layer reaches 60 wt %, and contacting the layer with air having a relative humidity of 5 to 25% for a period 5 seconds to 10 minutes. The photographic material according to the method has such a physical characteristics as dimensional stability for long time storage or anti-cracking of the photographic layer at the preparation period. It is suitable for printing use.Type: GrantFiled: May 1, 1990Date of Patent: October 29, 1991Assignee: Konica CorporationInventors: Hideaki Sakata, Toshiharu Nagashima, Akira Kobayashi
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Patent number: 5053322Abstract: A method for processing a silver halide color photographic material is disclosed, comprising a support having a thin film of metal or metal oxide on a substrate; said thin film having mirror surface reflection properties or secondary diffuse reflection properties and having a surfaced reflectance of at least 0.5; said photographic material having thereon, in order outwardly from the support, an adhesive layer and at least one light-sensitive silver halide emulsion layer, by the steps which comprise developing the silver halide color photographic material with a developing bath containing a color developing agent and at least one compound represented by formulae (I), (II), (III) or (IV): ##STR1## wherein M each represents hydrogen, an alkali metal or an ammonium group; and R.sub.1 represents a lower alkyl group; ##STR2## wherein R.sub.2 R.sub.3 and R.sub.4 each represents --COOM, --PO.sub.3 M.sub.Type: GrantFiled: October 27, 1989Date of Patent: October 1, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Akira Abe
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Patent number: 5023129Abstract: An element useful for recording images using nonimpact type printing is described. This element is preferably comprised of a transparent support having an antistatic layer coated on one side and a print receptive layer coated on the other. In another embodiment another print receptive layer can be present over the antistatic layer. The print receptive layer is a novel combination of binder, crosslinking agent, whitener, and matte agent. Excellent, hard, sharp images are produced using conventional nonimpact printing devices such as ink jet, pen plotters and electrostatic imaging.Type: GrantFiled: November 17, 1989Date of Patent: June 11, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventors: Steven J. Morganti, James H. Thirtle
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Patent number: 4994353Abstract: A silver halide photographic material is described composed of a polyester support having a hydrophilic colloidal layer containing a polymer latex on at least one side thereof, wherein the polyester support has a subbing layer having a thickness of 0.3 .mu.m or more and containing a vinylidene chloride copolymer composed of at least (1) from 70 to 99.9% by weight of a vinylidene chloride monomer and (2) from 0.1 to 5% by weight of a vinyl monomer having at least one carboxyl group, the subbing layer further containing a compound represented by formula (I) or (II): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 each represents a chlorine atom, a hydroxyl group, an alkyl group, an alkoxy group, an alkylthio group, --OM (wherein M represents a monovalent metal atom), --NR'R", or --NHCOR'" (wherein R', R", and R'" each represents a hydrogen atom, an alkyl group, or an aryl group); Q.sup.1 and Q.sup.Type: GrantFiled: June 15, 1990Date of Patent: February 19, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Hatakeyama, Takashi Naoi, Sumio Nishikawa
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Silver halide photographic material containing an interlayer containing a copolymer core-shell latex
Patent number: 4977071Abstract: A silver halide photographic material composed of a polyester film support having thereon at least one hhydrophilic colloid layer containing a polymer latex; and between the support and the hydrophilic colloid layer a layer containing a vinylidene chloride copolymer core-shell latex; at least one hydrophilic colloid layer of the material being a light-sensitive silver halide emulsion layer. The photographic material has superior dimensional stability after processing.Type: GrantFiled: May 24, 1989Date of Patent: December 11, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Satoshi Kanetake, Shinichi Hashimoto, Shigetoshi Ono, Takashi Naoi -
Patent number: 4960687Abstract: An improved process for the preparation of backing layers with improved coating qualities is described. These layers are designed to transmit antistatic properties from antistatic layers coated under the backing layers and provide antihalation or anticurl effects in addition thereto. The process of this invention includes in-line addition of a pre-stabilized crosslinking solution to a gelatino-conductive polymer solution just prior to the coating thereof. Smooth, skip-free coatings are obtained and the solutions are stable and can be maintained for long periods of time.Type: GrantFiled: September 29, 1989Date of Patent: October 2, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventor: Thomas B. Cho
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Patent number: 4945025Abstract: A light-sensitive material comprising a light-sensitive layer which contains silver halide, a reducing agent and a polymerizable compound and support, wherin the light-sensitive layer is provided thereon with a cover sheet. A light-sensitive material comprising the light-sensitive layer and a support, wherein the light-sensitive layer is provided thereon with a protective layer is also disclosed.Type: GrantFiled: March 11, 1987Date of Patent: July 31, 1990Assignee: Fuji Photo Film Co., Ltd.Inventor: Koichi Nakamura
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Patent number: 4942105Abstract: A flexible electrophotographic imaging member comprising at least one electrophotographic imaging layer, a supporting substrate layer having an electrically conductive surface and an anti-curl layer, the anti-curl layer comprising a film forming binder and from about 3 percent by weight to about 30 percent by weight, based on the total weight of said anti-curl backing layer, of a copolyester resin reaction product of terephthalic acid, isophthalic acid, ethylene glycol and 2,2-dimethyl-1-propane diol. This flexible electrophotographic imaging member is cycled in an electrostatographic imaging system to produce toner images.Type: GrantFiled: January 3, 1989Date of Patent: July 17, 1990Assignee: Xerox CorporationInventor: Robert C. U. Yu
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Patent number: 4933267Abstract: A silver halide photographic material is disclosed, having at least one hydrophilic colloid layer comprising a polyester support and having a polymer latex on at least one side of said polyester support, wherein both surfaces of said support are coated with a polymer layer comprising a copolymer containing from 50 to 99.5% by weight vinylidene chloride and wherein both polymer layers have a thickness of at least 0.3 .mu.m. A method for treating the silver halide photographic material is also disclosed.Type: GrantFiled: November 17, 1989Date of Patent: June 12, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Kunio Ishigaki, Takashi Naoi
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Patent number: 4828927Abstract: A sheet or web comprising a substrate which is composed of or coated with a hydrophobic resin and carries an antistatic layer, characterized in that the antistatic layer consists essentially of a blockcopolyetherester of dibasic carboxylic acid(s) esterified with ethylene glycol and with a polyoxyethylene glycol having an average molecular weight in the range 1,000 to 10,000, at least 20% by weight of such blockcopolyetherester being constituted by polyoxyethylene-ester chain parts.Type: GrantFiled: April 21, 1987Date of Patent: May 9, 1989Assignee: Agfa-Gevaert, N.V.Inventors: Daniel M. Timmerman, August M. Marien, Jan E. Van Havenbergh, Etienne A. Van Thillo
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Patent number: 4770986Abstract: Disclosed is a photographic material which comprises a synthetic plastic film, a polyolefin layer provided on one surface of the plastic film, an image forming layer provided on said polyolefin layer and layer (A) which contains at least one of carboxy-modified polyethylene, ethylene-ethyl acrylate copolymer, ethylene-vinyl acetate copolymer and polyolefin and which is provided on another surface of the synthetic plastic film opposite to the image forming layer side, the surface of said polyolefin layer which contacts with the image forming layer being a roughened surface and the surface of the layer (A) being a mirror-like surface.Type: GrantFiled: June 19, 1986Date of Patent: September 13, 1988Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Akira Uno, Masashi Kubbota, Akira Ninohira, Toshihiko Ueoka, Masaoki Nozaki
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Patent number: 4769306Abstract: Photographic film units are disclosed which incorporate an anti-reflection layer comprising a matrix of silica having dispersed therein particles of a fluorinated polymer. Viewing of the image and/or photoexposure are effected through the anti-reflection layer.Type: GrantFiled: September 23, 1987Date of Patent: September 6, 1988Assignee: Polaroid CorporationInventors: David F. Oberhauser, Peter H. Roth
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Patent number: 4699869Abstract: Photosensitive element comprisng a polyester, e.g., polyethylene terephthalate, at least 0.008 inch (0.20 mm) thick bearing on both sides a polymeric water-vapor barrier layer at least 0.00001 inch (0.00025 mm) thick of a copolymer of vinylidene chloride containing at least 80% by weight of vinylidene chloride and minor amounts of alkyl acrylate, and itaconic acid, and on at least one side of said barrier layer, a layer of a photosenstive material, e.g., silver halide emulsion, diazo or photopolymer. The element in the form of a phototool limits dimensional change within 6 hours after exposure to a 5% Relative Humidity change to no more than 0.001 inch (0.025 mm) per 24 inches (60.96 cm).Type: GrantFiled: November 7, 1986Date of Patent: October 13, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventors: John H. Bayless, Neil I. Steinberg, James H. Thirtle
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Patent number: 4659607Abstract: A retouchable mat film comprising a hydrophobic support which has formed thereon a mat layer containing silicon dioxide as a matting agent is disclosed. The mat layer further includes a mixture of poly(methyl methacrylate) or a copolymer containing at least 80 wt % of methyl methacrylate and a hydrophilic polymer as a binder. This mat film withstands several retouching operations in ink.Type: GrantFiled: December 2, 1985Date of Patent: April 21, 1987Assignee: Fuji Photo Film Co., Ltd.Inventors: Shinzi Kataoka, Yukio Shinagawa, Shinji Sakaguchi
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Patent number: 4645731Abstract: Photosensitive element comprising a polyester, e.g., polyethylene terephthalate, at least 0.008 inch (0.20 mm) thick bearing on both sides a polymeric water-vapor barrier layer at least 0.00001 inch (0.00025 mm) thick of a copolymer of vinylidene chloride containing at least 80% by weight of vinylidene chloride and minor amounts of alkyl acrylate, and itaconic acid, and on at least one side of said barrier layer, a layer of a photosensitive material, e.g., silver halide emulsion, diazo or photopolymer. The element in the form of a phototool limits dimensional change within 6 hours after exposure to a 5% Relative Humidity change to no more than 0.001 inch (0.025 mm) per 24 inches (60.96 cm).Type: GrantFiled: December 27, 1985Date of Patent: February 24, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventors: John H. Bayless, Neil I. Steinberg, James H. Thirtle
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Patent number: 4609617Abstract: A support for photographic use comprising a polyester film with at least one surface having a layer provided by coating with an aqueous coating composition, the coating composition comprising a copolymer containing (a) from about 0.01% to about 70% by weight glycidyl acrylate or glycidyl methacrylate with an expoxy-ring-opening ratio of the glycidyl group to the whole amount of epoxy rings of from 5 to 35 mole %; and (b) a monomer polymerizable with the glycidyl group selected from the group consisting of alkylacrylic acid ester, an alkylmethacrylic acid ester, an acrylamide, an N-alkylacrylamide, vinyl chloride, vinylidene chloride, styrene, a styrene derivative, a vinyl ether, a vinyl ester, a diolefin or a combination thereof.Type: GrantFiled: October 24, 1983Date of Patent: September 2, 1986Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toshiaki Yamazaki, Takanori Nakadate, Kenichi Kitahara, Morio Kobayashi, Noboru Fujimori, Ryuji Shimosaki
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Patent number: 4588673Abstract: A retouchable mat film comprising a hydrophobic support which has formed thereon a mat layer containing silicon dioxide as a matting agent is disclosed. The mat layer further includes a mixture of poly(methyl methacrylate) or a copolymer containing at least 80 wt % of methyl methacrylate and a hydrophilic polymer as a binder. This mat film withstands several retouching operations in ink.Type: GrantFiled: February 22, 1985Date of Patent: May 13, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Shinzi Kataoka, Yukio Shinagawa, Shinji Sakaguchi
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Patent number: 4571379Abstract: Photographic support having coated over a polyester support as a subbing layer a specific aqueous copolymer composition, said subbing layer being formed by coating aqueous composition containing copolymer substantially composed of a specific combination of three or four monomer components. Said photographic support has firm adhesive property, good flatness and other advantages.Type: GrantFiled: February 13, 1985Date of Patent: February 18, 1986Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toshiaki Yamazaki, Takanori Nakadate, Kenichi Kitahara, Noboru Fujimori, Morio Kobayashi, Ryuji Shimosaki
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Patent number: H1016Abstract: A silver halide photosensitive material is disclosed, comprising a polyester film support having thereon at least one hydrophilic colloid layer, at least one layer of which is a silver halide emulsion layer and at least one layer of which is a polymer latex-containing hydrophilic colloid layer, said polyester film support having coated on each side thereof a vinylidene chloride copolymer having a weight average molecular weight not more than 45,000, said vinylidene chloride copolymer being a core/shell type latex, said core part containing at least one of each type of repeating unit represented by formulae (I) and )II) and the said shell part containing at least one of each type of repeating unit represented the formulae (I), (III) and (IV): ##STR1## wherein A.sup.1 represents a hydrogen atom, a methyl group or a halogen atom, A.sup.2 represents a substituted or unsubstituted alkyl group or phenyl group, A.sup.3 represents a hydrogen atom or a methyl group, A.sup.Type: GrantFiled: October 26, 1990Date of Patent: January 7, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Hatakeyama, Tomokazu Yasuda, Takashi Naoi, Shigetoshi Ono