And Antifoggant Or Color Stabilizer Patents (Class 430/551)
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Publication number: 20030157445Abstract: In accordance with one embodiment of the invention, a photographic element is described comprising a support bearing one or more hydrophilic colloid layers including at least one photographic silver halide emulsion layer, wherein sequestered silver ions are incorporated into at least one hydrophilic colloid layer in the form of a silver ion containing material which sequesters silver ions prior to photographic processing and releases silver ions upon exposure to photographic processing solutions. Method for preparing and processing such photographic element are also described. In accordance with particular embodiments of the invention, the silver ion containing material comprises a silver ion-exchanged zeolite material or an intercalation composition comprising a layered host material having silver ions inserted as guest ions between the layers of the host material.Type: ApplicationFiled: December 28, 2001Publication date: August 21, 2003Inventors: Joseph F. Bringley, Kenneth J. Lushington, Tiecheng A. Qiao, James S. Honan
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Patent number: 6596461Abstract: A compound of formula (I) wherein n is e.g. a number from 2 to 50; R5′ and R5″ are e.g. a group of formula (II); G1, G2, G3 and G4 are e.g. C1-C4akyl; R1 is e.g. hydrogen or C1-C4alkyl; R2 is e.g. methylene; R3′ is e.g. hydrogen and R3″ is e.g. hydrogen or C1-C4alkyl; R4 is e.g. C2-C8alkylene; and X is e.g. —N(R7)R8) with R7 and R8 being independently of one another hydrogen or C1-C8alkyl, is useful for stabilizing an organic material against degradation induced by light, heat or oxidation.Type: GrantFiled: May 22, 2001Date of Patent: July 22, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Dario Lazzari, Mirko Rossi, Graziano Zagnoni, Alessandro Zedda, Valerio Borzatta, Stephen Mark Andrews
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Patent number: 6593075Abstract: A silver halide photographic light-sensitive material having at least one emulsion layer comprising silver halide grains, with the emulsion layer further comprising at least one compound represented by the following formula (I) and at least one compound represented by the following formula (II), (III), (IV-1), (IV-2), (V-1), (V-2), (V-3) or (VI): (X&Parenclosest;1&Parenopenst;L&Parenclosest;m&Parenopenst;A—B)n (I) (Het&Parenclosest;k1&Brketopenst;&Parenopenst;Q1&Parenclosest;k2&Parenopenst;Hy)]k3 (III) wherein the substituents as defined herein the specification.Type: GrantFiled: July 24, 2000Date of Patent: July 15, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Shinichi Ichikawa, Takeshi Suzumoto, Kohzaburoh Yamada, Tadashi Inaba
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Patent number: 6593069Abstract: A photothermographic material comprising at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing compound represented by the following formula (1) or (2), (d) a binder and (e) a coupler compound on the same side of a support: wherein, in the formula (1), V1 to V4 each independently represent hydrogen atom or a substituent, and V5 represents a substituted or unsubstituted alkyl group, aryl group or heterocyclic group: Q1—NHNH—V6 (2) wherein, in the formula (2), Q1 represents a 5- to 7-membered unsaturated ring bonding to NHNH—V6 at a carbon atom, and V6 represents a carbamoyl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group or a sulfamoyl group.Type: GrantFiled: March 16, 2001Date of Patent: July 15, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Toyohisa Oya, Kazunobu Katoh, Shigeo Hirano
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Patent number: 6573038Abstract: A silver halide photographic element comprising a silver halide emulsion which is greater than 50 mole % silver chloride and a pyrimidine compound represented by Formula I wherein R1, R2, and R3 are each independently a hydrogen atom or a hydroxy, alkoxy, amino, alkylamino, cyanoamino or alkyl group, and R4 is a hydroxy, alkoxy, amino, alkylamino, cyanoamino or alkyl group; provided that at least one of R1, R2, R3, and R4 is a hydroxy or an amino group.Type: GrantFiled: June 1, 2001Date of Patent: June 3, 2003Assignee: Eastman Kodak CompanyInventors: Shihua S. Chen, Roger Lok, Alberto M. Martinez, Dean H. Russell
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Patent number: 6566043Abstract: The present invention is to provide a silver halide photographic light-sensitive material comprising a support having thereon a light-sensitive silver halide emulsion layer comprising a compound represented by Formula, Formula 1 Z—S—X wherein Z represents a group represented by Formula 1-2; X represents a hydrogen atom or Z—S—, wherein A1, A2, A3, A4, and A5 each represent ═N—, ═N(→O)—, or ═CR91—, in which R91 represents a substituent, and at least two of A1, A2, A3, A4, and A5 are respectively ═N(→O)— and ═CR91—.Type: GrantFiled: August 30, 2001Date of Patent: May 20, 2003Assignee: Konica CorporationInventors: Emiko Kataoka, Nobuaki Kagawa, Tatsuo Tanaka
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Publication number: 20030091945Abstract: A silver halide color photographic material comprises a lightsensitive emulsion layer on a support.Type: ApplicationFiled: April 30, 2002Publication date: May 15, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Yasuhiro Kato, Hisashi Mikoshiba, Naoto Matsuda
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Patent number: 6555306Abstract: Photographic elements are disclosed comprising a silver halide emulsion layer having associated therewith a dye forming coupler and a compound of the following Formula I: wherein n=0-6 and each R is independently hydrogen, an aromatic, cyclic, linear or branched chain hydrocarbon group, NR′R″, or OR′; where R′ is an aromatic, cyclic, linear or branched chain hydrocarbon group and R″ is hydrogen or an aromatic, cyclic, linear or branched chain hydrocarbon group. Photographic elements of the present invention upon exposure and photographic processing exhibit good activity and yield dye images that have unexpected and substantial improvements in the stability of the formed image dyes.Type: GrantFiled: December 21, 2001Date of Patent: April 29, 2003Assignee: Eastman Kodak CompanyInventors: J. Ramon Vargas, Gary M. Russo
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Patent number: 6555305Abstract: A photographic element is disclosed comprising a silver halide emulsion layer including a spectrally sensitized tabular grain emulsion and having associated therewith a compound of the following Formula I: wherein n=0-6 and each R is independently hydrogen, an aromatic, cyclic, linear or branched chain hydrocarbon group, NR′R″, or OR′; where R′ is an aromatic, cyclic, linear or branched chain hydrocarbon group and R″ is hydrogen or an aromatic, cyclic, linear or branched chain hydrocarbon group. The use of dipiperidinediamide, dipiperidinedicarbamate or dipiperidinediurea compounds of Formula I in photographic elements comprising spectrally sensitized tabular grain silver halide emulsions exhibit reduced sensitizing dye stain after photographic processing.Type: GrantFiled: December 21, 2001Date of Patent: April 29, 2003Assignee: Eastman Kodak CompanyInventors: J. Ramon Vargas, Margaret D. Steele
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Patent number: 6548238Abstract: The stability of the dyes which are obtained after processing a color photographic material is improved by the addition of a polyvinylcaprolactam.Type: GrantFiled: July 20, 2001Date of Patent: April 15, 2003Assignee: AGFA-GevaertInventors: Beate Weber, Bernd Spachmann, Heinz Wiesen
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Patent number: 6548237Abstract: A silver halide color photographic lightsensitive material comprises a support and a silver halide emulsion layer.Type: GrantFiled: July 3, 2001Date of Patent: April 15, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Mikoshiba, Hiroshi Fukuzawa, Naoto Matsuda
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Patent number: 6548234Abstract: The invention provides a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, UV absorber and (A) a stabilizer of formula (I) wherein R1 is an unsubstituted or substituted alkyl or aryl group or a 5- to 10- membered heterocyclic ring which contains one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; Z is a hydrogen atom or a substituent group; X is a group selected from —SO2—, —SO—, —COO—,—CO— and —CS—, W is one or more unsubstituted or independently substituted alkylene groups connecting the nitrogen atom to X, and p is 0 or 1; R2 is a substituent group; or the groups represented by Z and R2 can be joined to form a ring which may be substituted; and (B) a high-boiling solvent of formula (II) wherein R3 is an unsubstituted or substituted alkyl orType: GrantFiled: August 21, 2001Date of Patent: April 15, 2003Assignee: Eastman Kodak CompanyInventor: Danuta Gibson
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Patent number: 6518007Abstract: This invention relates to a multicolor silver halide photographic element comprising a support and at least one high bromide silver halide emulsion layer comprising low fogging tabular silver halide grains, said element further comprising an antifoggant represented by the following Structure I: R1—SO2—C(R2)R3—(CO)m—(L)n—SG I wherein R1 is an aliphatic or cyclic group, R2 and R3 are independently hydrogen or bromine as long as at least one of them is bromine, L is a divalent linking group, m and n are independently 0 or 1, and SG is a solubilizing group that has a pKa of 8 or less.Type: GrantFiled: December 11, 2001Date of Patent: February 11, 2003Assignee: Eastman Kodak CompanyInventors: Kenneth J. Reed, George J. Burgmaier, John E. Keevert, Roger L. Klaus
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Patent number: 6506548Abstract: This invention relates to a silver halide photographic element comprising at least one silver halide emulsion layer and further comprising an antifoggant represented by the following Structure I: wherein R1 is an aliphatic or cyclic group, R2 and R3 are independently hydrogen or bromine as long as at least one of them is bromine, L is a divalent linking group, m and n are independently 0 or 1, and SG is a solubilizing group that has a pKa of 8 or less.Type: GrantFiled: December 11, 2001Date of Patent: January 14, 2003Assignee: Eastman Kodak CompanyInventors: Roger L. Klaus, George J. Burgmaier, Jon N. Eikenberry, Jerzy Z. Mydlarz, Nicholas E. Grzeskowiak
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Patent number: 6495299Abstract: This invention relates to packaged photographic film that is capable of being alternately processed, according to individual consumer choice, by either (1) a traditional wet-chemistry process with a developer solution followed by desilvering in one or more subsequent solutions to obtain a color negative film, or (2) a dry thermal process without the use of aqueous solutions in which a blocked developing agent located within the photographic element is thermally activated or unblocked, optionally followed by electronic scanning of the developed film without desilvering. This invention enables a single film stock to be developed in both a conventional deep tank process and in a dry thermal process.Type: GrantFiled: May 25, 2001Date of Patent: December 17, 2002Assignee: Eastman Kodak CompanyInventors: David H. Levy, James H. Reynolds, David T. Southby, Paul D. Zimmerman, Mark E. Irving
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Patent number: 6495313Abstract: A silver halide color photographic light-sensitive material comprising a support having provided thereon: at least one yellow-color-forming light-sensitive silver halide emulsion layer; at least one magenta-color-forming light-sensitive silver halide emulsion layer; at least one cyan-color-forming light-sensitive silver halide emulsion layer; and at least one light-insensitive non-color-forming hydrophilic colloid layer, wherein at least one layer of said at least one cyan-color-forming light-sensitive silver halide emulsion layer contains at least one cyan-dye-forming coupler having a pKa of not more than 8.Type: GrantFiled: July 6, 1998Date of Patent: December 17, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuhiro Yoshioka, Shin Soejima, Osamu Takahashi, Naoki Saito, Hisashi Mikoshiba, Masakazu Morigaki
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Publication number: 20020187443Abstract: A photographic element is disclosed, comprising a yellow dye forming coupler, a magenta dye forming coupler and a cyan dye forming coupler, wherein spectral reflection absorption characteristics of a yellow dye, a magenta dye and a cyan dye which are formed of the yellow dye forming coupler, the magenta dye forming coupler and the cyan dye forming coupler, respectively, meet the following requirements:Type: ApplicationFiled: January 31, 2002Publication date: December 12, 2002Inventor: Takeshi Hakii
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Publication number: 20020177084Abstract: The present invention relates to a silver halide color photographic light-sensitive material wherein at least one of light-sensitive silver halide emulsion layers includes a silver halide emulsion having a silver chloride content of at least 95 mol % and a silver iodide content of 0.05 mol % to 0.75 mol % and/or a silver bromide content of 0.05 mol % to 4.Type: ApplicationFiled: February 26, 2002Publication date: November 28, 2002Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Atsushi Matsunaga, Tadashi Inaba, Shinichi Ichikawa
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Patent number: 6472136Abstract: A method for forming a dispersion of an oil-soluble photographically useful compound in water or a hydrophilic colloid composition is disclosed, comprising dispersing the compound in the presence of a water-soluble anionic group containing polymeric surfactant, wherein the polymeric surfactant comprises a copolymer obtained from the copolymerization of a maleic anhydride monomer and a copolymerizable ethylenically unsaturated hydrophobic monomer and the anionic groups of the polymeric surfactant comprise primarily carboxy groups obtained upon base hydrolysis of the anhydride groups of the copolymer. The use of hydrolyzed maleic anhydride derived copolymers in place of conventional small-molecule surfactants as a dispersing agent to stabilize photographically active water-insoluble dye couplers or other organic oil-soluble photographically useful compounds enables a dramatic reduction of crystallization of such organic molecules on long-term keeping.Type: GrantFiled: September 5, 2001Date of Patent: October 29, 2002Assignee: Eastman Kodak CompanyInventors: Julia S. Tan, Kurt M. Schroeder, Delaina A. Amos
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Patent number: 6468728Abstract: A color photographic material comprising a support, at least one light-sensitive silver halide emulsion layer and at least one color coupler associated with said layer, characterized in that the material contains at least one compound of formula R1—SO2—NH—CO—R2 (I) wherein R1 and R2 denote organic radicals, the N atom can also be deprotonated, and compound I is substantially colorless and does not couple to form colored compounds during the processing of the material, is distinguished by its steep gradation and in that a high color density is obtained with inexpensive compounds.Type: GrantFiled: June 22, 2001Date of Patent: October 22, 2002Assignee: Agfa-GevaertInventor: Günther Helling
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Patent number: 6458522Abstract: A silver halide photographic light-sensitive material includes a compound selected from: (1) a quaternary nitrogen or phosphorus salt compound, having 20 or more of total recurring units consisting of an ethyleneoxy group and/or a propyleneoxy group; (2) a quaternary salt compound represented by formula (A): wherein Q represents nitrogen or phosphorus, R1, R2 and R3 represent an alkyl, aryl, alkenyl, alkynyl, or heterocyclic group, L1 represents an alkylene group, Y represents —C(═O) or —SO2—, L2 represents a divalent connecting group having at least one hydrophilic group, Xn− represents an n-valent counter anion, n being an integer of 1 to 3; and (3) a quaternary salt compound represented by formula (B): wherein A represents an organic moiety necessary to complete a nitrogen-containing aromatic heterocyclic ring. L2 represents a divalent connecting group having at least one hydrophilic group that divides L2.Type: GrantFiled: September 18, 2000Date of Patent: October 1, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Masahiko Taniguchi, Kohzaburoh Yamada, Ken-ichi Kuwabara, Tetsuo Yamaguchi
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Patent number: 6458523Abstract: New compounds of the formula I are described, wherein n is >1; X is O or NR4; L is a n-valent linking group defined in claim 1 and R1 is H, halogen, C1-C25-alkyl, C3-C25-alkenyl, unsubstituted or by C1-C4-alkyl substituted C5-C8-cycloalkyl; R2 and R3 independently of each other are C1-C4-alkyl, or together with the carbon atom they are bonded to, form a carbocyclic C5-C7 ring, especially C5-C7 cycloalkylene; and m is 1-20, especially 2-4. Compounds of the formula I are active as Dox-scavengers in color photographic material.Type: GrantFiled: January 7, 2002Date of Patent: October 1, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Suruliappa Gowper Jeganathan, Stéphane Biry
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Patent number: 6455242Abstract: Disclosed is a color photographic element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said at least one layer containing a compound with a minimum of three heteroatoms that does not react with oxidized developer and that has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound. The invention provides improved light sensitivity.Type: GrantFiled: September 18, 2001Date of Patent: September 24, 2002Assignee: Eastman Kodak CompanyInventors: Philip A. Allway, Bernard A. Clark, John D. Goddard, Louis E. Friedrich, James A. Friday, Stephen P. Singer, Marcello Vitale
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Patent number: 6451520Abstract: A colour photographic silver halide material comprising a support and at least one silver halide emulsion layer which is deposited thereon and which contains at least one colour coupler, characterised in that said layer also contains a compound of formula (I) wherein R1 denotes alkyl, aryl, aralkyl or hetaryl, R2 denotes H or R1, or R1 and R2 together denote the remaining members of a heterocyclic ring, R3, R4, independently of each other, denote aryl or hetaryl or together denote the remaining members of a phenanthrene ring which is condensed-on in the 9,10-position, wherein R1 can also be H if R3 and R4 together form a phenanthrene ring, is distinguished by improved granularity.Type: GrantFiled: July 27, 2001Date of Patent: September 17, 2002Assignee: Agfa-GevaertInventors: Heinrich Odenwälder, Hans Langen, Uwe Dahlhaus
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Patent number: 6444412Abstract: The invention relates to a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith one or more dye-forming couplers and a stabilizer compound of formula (I): wherein R1 and R2 are independently selected from hydrogen or an unsubstituted or substituted alkyl, aryl, alkoxy, aryloxy or amino group or may combine to complete a 5-10 membered heterocyclic ring which may contain in addition to the silicon atom one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; each Z independently represents the atoms necessary to complete a substituted or unsubstituted arene or heteroaromatic ring system; X is a single bond or a linking group having a single atom which connects the arene rings or heteroaromatic ring systems; or X forms, together with substituents ortho to X on the arene rings or heteroaromatic ring systems, a fused unsubstituted or substituted 5-, 6- or 7-membered ring, which may contType: GrantFiled: August 21, 2001Date of Patent: September 3, 2002Assignee: Eastman Kodak CompanyInventors: David Clarke, Llewellyn J. Leyshon, Christopher P. Moore
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Patent number: 6444417Abstract: The invention relates to a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith (A) a cyan dye-forming coupler of formula (I) and (B) a bisphenol derivative compound of formula (II): wherein the substituents are as described in the specification.Type: GrantFiled: August 21, 2001Date of Patent: September 3, 2002Assignee: Eastman Kodak CompanyInventors: David Clarke, Llewellyn J. Leyshon, Katie E. Smith
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Patent number: 6436623Abstract: A colour photographic silver halide material having a support and at least one photo-sensitive silver halide emulsion layer which is associated with a cyan coupler of the formula (I): in which R1, R2, R3, Z1, Y1 and n have the meaning stated in the description, is distinguished by elevated dye stability of the dye produced from the coupler by chromogenic processing.Type: GrantFiled: October 31, 2001Date of Patent: August 20, 2002Assignee: Agfa-GevaertInventors: Jörg Hagemann, Jan Haller, Günter Helling
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Patent number: 6416941Abstract: A color photographic element comprises a support and at least one dye image forming layer unit comprising gelatin-peptized radiation-sensitive silver halide grains, a fragmentable electron donating compound; and an electron transfer agent releasing compound.Type: GrantFiled: December 20, 1999Date of Patent: July 9, 2002Assignee: Eastman Kodak CompanyInventors: Kenneth J. Reed, Annabel A. Muenter, Sharon R. Lunt, David T. Southby
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Patent number: 6413707Abstract: A photographic element is disclosed comprising a silver halide emulsion layer having associated therewith an acetanilide based yellow dye forming coupler and a compound of the following Formula I: wherein R1, R2 and R3 are each independently aromatic, cyclic, linear, or branched chained hydrocarbon groups. The invention provides photographic elements which exhibit exceptional yellow dye light stability, and which retain desirable properties derived from the use of acetanilide based yellow dye-forming couplers, particularly when used in combination with substituted phenolic and/or thiomorpholine dioxide stabilizers. In addition to stabilizing properties, compounds of Formula I have organic solvent properties, and accordingly may be advantageously used partly or totally in place of conventional high boiling permanent and/or auxiliary organic coupler solvents to disperse the acetanilide-based couplers.Type: GrantFiled: August 30, 2001Date of Patent: July 2, 2002Assignee: Eastman Kodak CompanyInventors: Kurt M. Schroeder, James S. Honan, Brian Thomas, Thomas A. Rosiek, Paul D. Yacobucci
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Patent number: 6410216Abstract: Method of forming a photographic color image which comprises imagewise exposing a photographic silver halide color material and processing it with an alkaline processing solution in the presence of a sulphonhydrazide color developing agent and a 3-pyridinol color coupler optionally containing in the 2-position a ballasting group of such size and configuration as to render the coupler non-diffusible in photographic materials thus forming a dye image by reaction of the oxidized color developing agent and the color coupler.Type: GrantFiled: July 14, 1994Date of Patent: June 25, 2002Assignee: Eastman Kodak CompanyInventors: David Clarke, Paul Louis Reginald Stanley
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Patent number: 6403296Abstract: A color photographic silver halide material containing gelatine, comprising a support and at least one photosensitive silver halide emulsion layer and at least one non-photosensitive layer, which material contains at least one compound of the formula (I) or (II) and is hardened with a vinylsulfonyl compound in which R1, R2, R3, m and n have the meanings stated in the description and wherein two residues R2 or R3 may in each case mean a fused carbo- or heterocyclic ring or the compound of the formula I is attached to a polymer chain via one of the residues R1, R2 or R3, in which R11, R12, R13, R14, o and p have the meanings stated in the description wherein two residues R13 or R14 may in each case mean a fused carbo- or heterocyclic ring or the compound of the formula II is attached to a polymer chain via a residue R13 or R14, is distinguished by improved storage stability.Type: GrantFiled: August 9, 2000Date of Patent: June 11, 2002Assignee: Agfa-GevaertInventors: Jörg Hagemann, Markus Geiger, Heinrich Odenwälder
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Patent number: 6399289Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising, on a support, a unit blue-sensitive layer including at least one blue-sensitive silver halide emulsion layer containing a yellow coupler, a unit green-sensitive layer including at least one green-sensitive silver halide emulsion layer containing a magenta coupler, and a unit red-sensitive layer including at least one red-sensitive silver halide emulsion layer containing a cyan coupler, at least one of the unit blue-, green-, and red-sensitive layers comprising not less than two color-sensitive layers differing in sensitivity, of which a highest-sensitivity layer being positioned farthest from the support, wherein the light-sensitive material has at least one layer containing a high-boiling organic solvent, at least 50% by weight of which is occupied by a high-boiling organic solvent having a viscosity of not less than 300 mPas at 25° C.Type: GrantFiled: September 28, 2000Date of Patent: June 4, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Junichiro Hosokawa, Hisashi Mikoshiba, Yasuhiro Kato
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Publication number: 20020064735Abstract: The invention relates to a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith (A) a cyan dye-forming coupler of formula (I) and (B) a bisphenol derivative compound of formula (II): 1Type: ApplicationFiled: August 21, 2001Publication date: May 30, 2002Applicant: Eastman Kodak CompanyInventors: David Clarke, Llewellyn J. Leyshon, Katie E. Smith
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Publication number: 20020064734Abstract: The stability of the dyes which are obtained after processing a color photographic material is improved by the addition of a polyvinylcaprolactam.Type: ApplicationFiled: July 20, 2001Publication date: May 30, 2002Inventors: Beate Weber, Bernd Spachmann, Heinz Wiesen
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Publication number: 20020061480Abstract: The invention provides a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, UV absorber andType: ApplicationFiled: August 21, 2001Publication date: May 23, 2002Applicant: Eastman Kodak CompanyInventor: Danuta Gibson
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Publication number: 20020058212Abstract: The invention relates to a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith one or more dye-forming couplers and a stabilizer compound of formula (I): 1Type: ApplicationFiled: August 21, 2001Publication date: May 16, 2002Applicant: Eastman Kodak CompanyInventors: David Clarke, Llewellyn J. Leyshon, Christopher P. Moore
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Publication number: 20020055067Abstract: The present application relates to a photothermographic material comprising, on a side of a support, (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a phenol derivative having the specific structure as reducing compound, (d) a binder, (e) a coupler compound, and (f) a compound represented by Q1-NHNH-V6 wherein Q1 is a 5- to 7-membered unsaturated ring and V6 is a carbamoyl group, etc.Type: ApplicationFiled: August 3, 2001Publication date: May 9, 2002Inventors: Toyohisa Oya, Kazunobu Katoh
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Patent number: 6383728Abstract: A color photographic silver halide material having a support and at least one photosensitive silver halide emulsion layer which is associated with a cyan coupler of the formula (I): in which R1, R2, R3, Z1, Y1 and n have the meaning stated in the description, is distinguished by elevated dye stability of the dye produced from the coupler by chromogenic processing.Type: GrantFiled: December 12, 2000Date of Patent: May 7, 2002Assignee: Agfa-GevaertInventors: Jörg Hagemann, Jan Haller, Günter Helling
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Publication number: 20020045138Abstract: A color photographic silver halide material comprising a support and at least one silver halide emulsion layer which is deposited thereon and which contains at least one color coupler, characterized in that said layer also contains a compound of formula (I) 1Type: ApplicationFiled: July 27, 2001Publication date: April 18, 2002Inventors: Heinrich Odenwalder, Hans Langen, Uwe Dahlhaus
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Patent number: 6365334Abstract: A photographic element having a layer comprising a silver halide emulsion, a 1-aryl-4-aryloxy-2-pyrazolin-5-one magenta dye forming coupler, and a sulfide, sulfoxide or sulfone compound. Such elements exhibit good activity and stability of the magenta coupler. Preferably, the foregoing magenta dye forming coupler has the structure of Ia or Ib below, while the sulfide, sulfoxide and sulfone compounds have the structure VI, VII or VIII below: Where R1, R2, R3, n, R8 and R9 are defined in the specification.Type: GrantFiled: October 22, 1993Date of Patent: April 2, 2002Assignee: Eastman Kodak CompanyInventors: Jerrold Neal Poslusny, Paul Barrett Merkel, Lawrence Glenn Anderson, Jared Ben Mooberry, David Hales Bown
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Publication number: 20020022202Abstract: A colour photographic material comprising a support, at least one light-sensitive silver halide emulsion layer and at least one colour coupler associated with said layer, characterised in that the material contains at least one compound of formulaType: ApplicationFiled: June 22, 2001Publication date: February 21, 2002Inventor: Gunther Helling
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Patent number: 6348306Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith (a) a pyrazolotriazole dye-forming coupler; (b) a cyclic aminosulfone first stabilizer; and (c) a sulfonamide compound co-stabilizer free of aromatic substituents and having a melting point of less than 150° C. The image dye formed by the coupler exhibits improved dye light stability.Type: GrantFiled: October 5, 2000Date of Patent: February 19, 2002Assignee: Eastman Kodak CompanyInventors: Albert J. Mura, Jr., Shari L. Eiff, Gary M. Russo
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Patent number: 6329129Abstract: A heat-developable color light-sensitive material comprising a support having thereon at least a light-sensitive silver halide emulsion, a hydrophilic binder and a dye-donating compound capable of releasing a diffusible dye in correspondence or counter-correspondence to the silver development, wherein at least two light-insensitive layers are provided between the support and a light-sensitive layer closest to the support and the light-insensitive layer not adjacent to the light-sensitive layer contains at least one compound represented by the following formula (I) or (II): wherein R1 to R6 are defined herein wherein R7, R8 and R9 are defined herein and Y represents —CO— or —SO2—.Type: GrantFiled: November 22, 2000Date of Patent: December 11, 2001Assignee: Fuji Photo Film Co., Ltd.Inventor: Takayasu Yamazaki
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Patent number: 6316177Abstract: Disclosed is a color silver halide photographic element comprising a light-sensitive silver halide emulsion layer or a non-silver containing light-insensitive layer, said light-sensitive or light-insensitive layer containing a polymer compound comprising a heterocycle unit derived from: (a) a heterocycle monomer (1) comprising two or more annulated rings containing, in total, a minimum of three ring heteroatoms of which no more than two of the heteroatoms are connected in sequence to each other and (2) having a ClogP less than 6.2; or (b) a monocyclic heterocycle monomer having exactly three ring heteroatoms and having a ClogP less than 8.75; with the proviso that the heterocycle unit does not contain a hydroxy or mercapto group (or their tautomeric equivalent), and does not react with oxidized developer; and the amount of the polymer compound in the element being sufficient to increase the photographic speed of the element compared to the same element without the compound.Type: GrantFiled: March 31, 2000Date of Patent: November 13, 2001Assignee: Eastman Kodak CompanyInventors: Philip A. Allway, Tienteh Chen, David S. Ross, Stephen P. Singer
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Patent number: 6312881Abstract: In accordance with one embodiment of the invention, a photographic element is disclosed comprising a silver halide emulsion layer having associated therewith an acetanilide-based yellow dye forming coupler and a stabilizer compound of the formula S-I: wherein R0 represents an aryl or heterocyclic group; Ra is H or a substituent group; L represents an alkylene linking group and p represents 0 or 1; and Rb is a substituent group, provided that substituent groups represented by Ra and Rb may be joined to form a ring. The presence of substituted amine compounds of formula S-I improves the efficiency of dye formation reaction for acetanilide-based couplers. When used in combination with known bis-phenolic stabilizers, substantial improvements in the light stability of the image dyes can be also be obtained.Type: GrantFiled: January 14, 2000Date of Patent: November 6, 2001Assignee: Eastman Kodak CompanyInventors: Danuta Gibson, James S. Honan, Llewellyn J. Leyshon, Thomas A. Rosiek, Brian Thomas
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Patent number: 6309813Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer containing an azopyrazolone masking coupler and a monosubstituted quinone of formula I: wherein R is selected from the group consisting of alkyl, aryl, alkoxy, aryloxy, alkylthio, arylthio, sulfinyl, sulfonyl,sulfamoyl, halogen, cyano, thiol, hydroxy, nitro, acyloxy, sulfonyloxy, heterocyclic, carboxylic acid, carboxylate, carbamoyl, amino, carbonamido and sulfonamido groups.Type: GrantFiled: December 15, 2000Date of Patent: October 30, 2001Assignee: Eastman Kodak CompanyInventors: Janet N. Younathan, Daniel L. Kapp, Stephen P. Singer, David R. Foster
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Patent number: 6303282Abstract: The present invention discloses a color photographic photosensitive material for heat development, which material is characterized in that the color photographic photosensitive material produces superior discrimination with reduced color muddiness in rapid processing. The color photographic photosensitive material for heat development of the present invention comprises a support having thereon a photosensitive silver halide, a binder, a dye-releasable compound, a compound represented by the general formula (I) or (II), and a compound represented by the general formula (III) or (IV).Type: GrantFiled: December 15, 1999Date of Patent: October 16, 2001Assignee: Fuji Photo Film Co., Ltd.Inventors: Hideaki Naruse, Toshio Kawagishi, Takeshi Shibata
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Patent number: 6284447Abstract: A color photographic silver halide material which is developed as a negative, at least 90 mol % of the silver halides of which consist of AgCl, and which contains a compound of formula (I) or formula (II) in a light-insensitive layer which is further from the support than is each light—light sensitive layer, is distinguished by its improved color reproduction.Type: GrantFiled: April 7, 2000Date of Patent: September 4, 2001Assignee: Agfa-GevaertInventors: Cuong Ly, Dieter Rockser, Edgar Draber, Markus Geiger, Jürgen Heinecke, Randolph Trommer
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Patent number: 6265117Abstract: A color imaging element comprising a dye formed upon a reaction of an oxidation product of a compound represented by formula (I) shown below together with at least one water-soluble compound represented by formula (II) shown below on a support: wherein Z represents a carbamoyl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group or a sulfamoyl group; and Q represents an atomic group necessary for forming an unsaturated ring together with the carbon atom; wherein X represents a hydrogen atom, a hydroxy group, an aliphatic group, an acyl group, an aliphatic oxy group, an aliphatic oxycarbonyl group or an aryloxycarbonyl group; Y1 and Y2, which may be the same or different, each represents a hydrogen atom or a substituent, or Y1 and Y2 may be combined with each other to form a 5-membered or 6-membered ring; Z1 represents a simple bond, a methylene group which may be substituted or an ethylene group which may be substituted; Z2 represents aType: GrantFiled: September 20, 1999Date of Patent: July 24, 2001Assignee: Fuji Photo Film Co., Ltd.Inventor: Keiichi Taguchi
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Patent number: 6265118Abstract: There is disclosed an image element wherein a dye, formed or released by reaction with an oxidized product of specific a compound, and specific a fixed compound, coexist in a binder on a support. The image element can have high color density in image, and it can be excellent in light fastness. Furthermore, there is also disclosed an image formation method to provide the image element.Type: GrantFiled: January 28, 2000Date of Patent: July 24, 2001Assignee: Fuji Photo Film Co., Ltd.Inventor: Keiichi Taguchi