Using Polymer Or Condensation Reaction Product Patents (Class 430/444)
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Patent number: 7566688Abstract: The invention provides a soil release agent and a detergent composition blended therewith. The invention relates to a crosslinked product obtained by reacting a compound having 2 to 32 hydroxyl groups, such as triethanol amine, with a compound having at least two functional groups reacting with hydroxyl groups, such as (poly)ethylene glycol diglycidyl ether, a soil release agent containing the crosslinked product, and a detergent composition containing the soil release agent.Type: GrantFiled: December 9, 2003Date of Patent: July 28, 2009Assignee: Kao CorporationInventors: Atsushi Tanaka, Satoru Kijima, Makoto Kubo
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Patent number: 7118836Abstract: A substantially transparent conductive layer on a support, the layer comprising an intrinsically conductive polymer e.g. containing an intrinsically conductive polymer optionally containing structural units represented by formula (I): wherein n is larger than 1 and each of R1 and R2 independently represents hydrogen or an optionally substituted C1-4 alkyl group or together represent an optionally substituted C1-4 alkylene group or an optionally substituted cycloalkylene group, preferably an ethylene group, an optionally alkyl-substituted methylene group, an optionally C1-12 alkyl- or phenyl-substituted ethylene group, a 1,3-propylene group or a 1,2-cyclohexylene group; and a conductive metal non-uniformly distributed therein and forming of itself a conductive entity; a process for preparing the transparently conductive layer; and light emitting diodes, photovoltaic devices, transistors and electroluminescent devices comprising the above-described conductive layer.Type: GrantFiled: August 19, 2003Date of Patent: October 10, 2006Assignee: Agfa GevaertInventor: Hieronymus Andriessen
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Publication number: 20040048205Abstract: Concentrated and working strength photographic color developing compositions are stabilized with the inclusion of two specific types of calcium ion sequestering agents. One of the sequestering agents is a polyelectrolyte such as a polycarboxylic acid or salt thereof having a molecular weight of from about 2000 to about 100,000. The other one is a non-polymeric aminocarboxylic acid, polyphosphonic acid, or a salt thereof. The weight ratio of the first calcium ion sequestering agent to the second calcium ion sequestering agent is from about 1:1 to about 20:1. These compositions can be used to process color photographic materials such as color photographic papers.Type: ApplicationFiled: August 12, 2003Publication date: March 11, 2004Inventors: Shirleyanne E. Haye, Janet M. Huston
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Publication number: 20040023169Abstract: A silver halide photographic processing solution comprising at least one polymeric compound inhibiting sludge formation and preventing “pi-line” artefact, more particularly in radiographic non-destructive testing applications, wherein said polymeric compound comprises at least one monomer unit having a silver complexing moiety and at least one monomer unit having a solubilizing group, and wherein both said silver ion complexing moiety and said solubilizing group are comprised in same or different monomer units.Type: ApplicationFiled: July 11, 2003Publication date: February 5, 2004Inventors: Johan Loccufier, Frank Louwet, Andre Roefs
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Patent number: 6649331Abstract: Rapid development of silver bromoiodide color negative photographic films and formation of high quality negative images suitable for scanning to produce display images of excellent quality is made possible by a novel developer solution composition and method of development. The solution is characterized by containing, in addition to the color developer compound and conventional photographic developer solution components, a water soluble pyrrolidone polymer, a high concentration of sulfite ion and a low concentration, or the absence of, bromide ion. In the novel method the developer composition contacts the exposed film at elevated temperature, e.g., 40 to 66° C., for a short development time, e.g., 20 to 90 seconds. The developed image has image quality suitable for scanning and digital manipulation to produce a digital record for forming a color display image of high quality.Type: GrantFiled: May 20, 2002Date of Patent: November 18, 2003Assignee: Eastman Kodak CompanyInventors: Robert A. Arcus, Peter N. Bacel, John A. Weldy
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Publication number: 20030108826Abstract: An antifoaming agent composition for a silver halide photographic processing solution, which comprises at least one of the specified (polyoxyethylene/polyoxypropylene) copolymer as a surface active agent.Type: ApplicationFiled: March 14, 2002Publication date: June 12, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventor: Akimitsu Haijima
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Publication number: 20030082490Abstract: Rapid development of silver bromoiodide color negative photographic films and formation of high quality negative images suitable for scanning to produce display images of excellent quality is made possible by a novel developer solution composition and method of development. The solution is characterized by containing, in addition to the color developer compound and conventional photographic developer solution components, a water soluble pyrrolidone polymer, a high concentration of sulfite ion and a low concentration, or the absence of, bromide ion. In the novel method the developer composition contacts the exposed film at elevated temperature, e.g., 40 to 66° C., for a short development time, e.g., 20 to 90 seconds. The developed image has image quality suitable for scanning and digital manipulation to produce a digital record for forming a color display image of high quality.Type: ApplicationFiled: May 20, 2002Publication date: May 1, 2003Inventors: Robert A. Arcus, Peter N. Bacel, John A. Weldy
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Patent number: 6479198Abstract: A silver halide light-sensitive material comprises a support and a silver halide gelatin emulsion layer. The silver halide gelatin emulsion layer or an optionally provided hydrophilic layer contains a tanning developing agent. According to the first embodiment of the present invention, the tanning developing agent has a molecular structure in which two to six benzenediol or benzenetriol rings are connected with a linking group. According to the second embodiment of the invention, the tanning developing agent consists of a polymer having side chains containing benzenediol or benzenetriol rings. According to the third embodiment of the invention, the tanning developing agent consists of a benzenediol or benzenetriol ring having an aliphatic substituent group having 5 to 40 carbon atoms or an aromatic substituent group having 7 to 40 carbon atoms. A tanning developing solution and a lithographic printing plate are also disclosed.Type: GrantFiled: February 1, 2001Date of Patent: November 12, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Naonori Makino, Kaku Sakata
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Patent number: 6436617Abstract: 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: GrantFiled: October 30, 2000Date of Patent: August 20, 2002Assignee: Eastman Kodak CompanyInventors: Yongcai Wang, Kevin M. O'Connor, Melvin M. Kestner, James L. Bello
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Patent number: 6376160Abstract: 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: GrantFiled: October 30, 2000Date of Patent: April 23, 2002Assignee: Eastman Kodak CompanyInventors: Yongcai Wang, Kevin M. O'Connor, Melvin M. Kestner, James L. Bello
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Patent number: 6190843Abstract: The present invention relates to imaging elements, including photographic elements and recording media, 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. The overcoat, before formation of the image, comprises hydrophobic polymeric particles in a gelatin matrix. Subsequent treatment of the overcoat, after formation of the image, to remove the gelatin, causes coalescence of the hydrophobic particles, resulting in the formation of a water-resistant continuous protective overcoat.Type: GrantFiled: April 11, 2000Date of Patent: February 20, 2001Assignee: Eastman Kodak CompanyInventors: Hwei-Ling Yau, Thomas H. Whitesides, Elmer C. Flood, Amy E. Jasek
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Patent number: 6187518Abstract: The present invention is a photographic element which includes a support, at least one silver halide emulsion superposed on a front side of the support and an outermost backing layer superposed on a backside of the support. The outermost backing layer is composed of a hydrophobic binder and a hydrophilic binder wherein the backing layer has an advancing water contact angle of 70 or greater and a receding water contact angle of at least 40 less than the advancing water contact angle.Type: GrantFiled: October 23, 1998Date of Patent: February 13, 2001Assignee: Eastman Kodak CompanyInventors: Raymond T. Jones, Ravi Sharma, Alfred B. Fant
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Patent number: 6100016Abstract: The invention relates to a developer for irradiated, radiation-sensitive recording materials, in particular for the production of offset printing plates, which contains water, a compound which is alkaline in aqueous solution and a copolymer which acts as an emulsifier and has units of (I) a hydrophobic vinyl compound which has at least one optionally substituted mono- or bicyclic (C.sub.6 -C.sub.14)aryl radical and (II) a hydrophilic, ethylenically unsaturated carboxylic acid. Some of the carboxyl groups of the copolymer are esterified with reaction products of (A) (C.sub.1 -C.sub.30)alkanols, (C.sub.8 -C.sub.25)alkanoic acids, (C.sub.1 -C.sub.12)-alkylphenols or di(C.sub.1 -C.sub.20)alkylamines with (B) (C.sub.2 -C.sub.4)-alkylene oxides or tetrahydrofuran, the molar ratio (A):(B) being in the range from 1:2 to 1:50. If it is intended to develop recording materials having a negative-working layer, the developer additionally contains a water-miscible organic solvent and a surface-active compound.Type: GrantFiled: September 14, 1999Date of Patent: August 8, 2000Assignee: Agfa-Gevaert AGInventors: Steffen Denzinger, Michael Doerr, Klaus-Peter Konrad, Andreas Elsaesser, Paul Eckler
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Patent number: 6096485Abstract: A desensitizing solution for lithographic printing is disclosed, which comprises at least one organometallic polymer containing at least two partial structure units represented by the following formula (1): ##STR1## wherein R.sup.0 represents --PO.sub.3 H.sub.2, --OPO.sub.3 H.sub.2 or a salt thereof.Type: GrantFiled: October 18, 1999Date of Patent: August 1, 2000Assignee: Fuji Photo Film Co., Ltd.Inventors: Seishi Kasai, Ryousuke Itakura, Eiichi Kato
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Patent number: 6096488Abstract: Processing a silver halide color photographic material comprising color developing, desilvering and water washing and/or stabilizing. In this process, a photographic material which has at least one emulsion layer containing a high silver chloride content, and at least one emulsion layer containing a monodisperse emulsion, is continuously processed with a color developing solution containing a water-soluble high polymer compound. The coated amount of silver in the photographic material is preferably 0.75 g/m.sup.2 or less. The color developing solution preferably has a chloride ion content of 0.035 mol/l or more. The water soluble high polymer compound can be a polyester, polyamide, polyurethane, polyether, polycarbonate or a natural high polymer compound, or their derivatives. It is obtained by polymerizing or copolymerizing a monomer containing a copolymerizable ethylene type unsaturated group. The high polymer compound is preferably added in the amount of 0.Type: GrantFiled: May 5, 1999Date of Patent: August 1, 2000Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Kazuaki Yoshida, Hiroshi Fujimoto, Junichi Yamanouchi, Tomokazu Yasuda
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Patent number: 5972572Abstract: A developer for irradiated, radiation-sensitive recording materials, in particular for the production of offset printing plates, which contains water, a compound which is alkaline in aqueous solution and a copolymer which acts as an emulsifier and has units of (I) a hydrophobic vinyl compound which has alkyl radicals having up to 30 carbon atoms and (II) a hydrophilic, ethylenically unsaturated carboxylic acid. Some of the carboxyl groups of the copolymer are esterified with reaction products of (A) (C.sub.1 -C.sub.30)alkanols, (C.sub.8 -C.sub.25)alkanoic acids, (C.sub.1 -C.sub.12)alkylphenols or di(C.sub.1 -C.sub.20)alkylamines with (B) (C.sub.2 -C.sub.4)alkylene oxides or tetrahydrofuran.Type: GrantFiled: November 3, 1998Date of Patent: October 26, 1999Assignee: Agfa-Gevaert AGInventors: Klaus Peter Konrad, Steffen Denzinger, Andreas Elsaesser
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Patent number: 5853926Abstract: The present invention is an imaged photographic element having a protective overcoat thereon. The protective overcoat is formed by providing a photographic element having at least one silver halide light-sensitive emulsion layer; and applying an aqueous coating comprising polymer particles having an average size of 0.1 to 50 microns at a weight percent of 5 to 50 percent, a soft polymer latex binder at a weight percent of 1 to 3 percent, over the at least one silver halide light-sensitive emulsion layer. The silver halide light sensitive emulsion layer is developed to provide an imaged photographic element. The hydrophobic polymer particles is fused to form a protective overcoat.Type: GrantFiled: July 23, 1997Date of Patent: December 29, 1998Assignee: Eastman Kodak CompanyInventors: Anne E. Bohan, Vito A. DePalma, William K. Goebel, Amy E. Jasek, Thomas H. Whitesides
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Patent number: 5821037Abstract: A redox developer-amplifier composition contains a color developing agent and a redox oxidizing agent. The composition also contains a stabilizing amount of Zn.sup.++ or Mg.sup.++ ions, and thus has improved stability.Type: GrantFiled: March 13, 1997Date of Patent: October 13, 1998Assignee: Eastman Kodak CompanyInventors: Peter J. Twist, Christopher J. Winscom
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Patent number: 5800974Abstract: A black and white photographic element comprising as a photosensitive medium a layer of a silver halide emulsion characterised in that the photosensitive medium comprises in the same layer or in an adjacent layer thereto a developer comprising a substantially non-diffusing polymeric compound having as a component part of its structure a plurality of units having a nucleus of general formula (I): ##STR1## wherein; each Z independently is a member selected from the group consisting of --OH and a group which leaves an --OH residue when contacted with an alkali (pH .gtoreq.10) at temperatures of .ltoreq.50.degree. C.Type: GrantFiled: September 8, 1992Date of Patent: September 1, 1998Assignee: Imation Corp.Inventors: Julian Wallis, Kevin P. Hall, Stephen Newman, Dian Elizabeth Stevenson
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Patent number: 5789143Abstract: This invention relates to a silver halide color photographic element comprising a support, a silver halide emulsion and poly(thioether)s wherein greater than 50 percent of the poly(thioether)s have acidic functional end groups with an aqueous pKa.ltoreq.10, or end groups which will react to form acidic functional end groups with an aqueous pKa.ltoreq.10 during development, on both termini and wherein the poly(thioether)s have a molecular weight greater than 800.Type: GrantFiled: April 30, 1997Date of Patent: August 4, 1998Assignee: Eastman Kodak CompanyInventors: George J. Burgmaier, David A. Dickinson, Robert A. Guistina
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Patent number: 5763148Abstract: A silver halide photographic activation material is disclosed comprising a film support, on one or both sides thereof at least one gelatino silver halide emulsion layer and between said emulsion layer and said support a hydrophilic undercoat layer comprising as a binder at least 50% of a loaded latex polymer, said latex polymer being loaded with at least one developing agent, further characterised in that water absorption during activation processing is not higher than 2.5 g per gram of binder present in said material.Type: GrantFiled: July 17, 1996Date of Patent: June 9, 1998Assignee: AGFA-Gevaert, N.V.Inventors: Peter Willems, Freddy Henderickx, Marcel Monbaliu
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Patent number: 5660973Abstract: A developing machine having a high durability at a high temperature even in the presence of a high concentration of the developing agent is provided. The developing machine has means for keeping the temperature of a color developer having a concentration of an aromatic primary amine developing agent of 0.15 to 0.50 mol/l in the range of 40.degree. to 50.degree. C., and the material for at least one of the developing tanks and the racks is a resin selected from the group consisting of polyphenylene sulfide resin, polyphenylene oxide resin, polymethylpentene resin, polyether ether ketone resin, polyalkylene terephthalate resin, polyether imide resin, polyether sulfone resin and polysulfone resin.Type: GrantFiled: March 15, 1995Date of Patent: August 26, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Fumio Mogi
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Patent number: 5518868Abstract: To eliminate the "pi-line" artefact after processing a silver halide industrial photographic X-ray material is disclosed comprising on at least one side of a support, at least one gelatino silver halide emulsion layer and a total amount of silver halide, corresponding to from 6 to 20 g of silver nitrate per square meter and per side, and at least one non-sensitive protective antistress coating, wherein said photographic material comprises at least one vinyl sulphone compound as a hardening agent and at least one polyoxyalkylene compound as a surfactant in at least one of its hydrophilic layers.Type: GrantFiled: August 8, 1995Date of Patent: May 21, 1996Assignee: Agfa-Gevaert, N.V.Inventors: Raymond Florens, Pieter Perdieus, Andre Roefs
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Patent number: 5466565Abstract: Color development composition and process. The compositions of this invention contain a color developer containing poly(N-hydroxyl alkyleneimine) and/or a derivative thereof, which are represented by general formula (I) shown below: ##STR1## wherein: "R" in said formula (I) represents an alkylene group, which may be substituted by a hydroxyl group, a carboxyl group, a sulfo group or other similar groups and may contain carbonyl linkage, ether linkage, double bond or other similar bond or linkage, and may also have a cyclic structure;" and ".sub.n " in said formula (I) represents an integer in the range from 10 to 10,000. These compositions are used for processing silver halide-type color sensitized material. These compositions maintain the usable life of a color developer, do not cause decrease of color density or deterioration of quality of photographs such as fogging, and have no odor or deleterious substance.Type: GrantFiled: March 18, 1994Date of Patent: November 14, 1995Assignee: Chugai Phote Chemical Co., Ltd.Inventors: Nobuki Shigemori, Hisao Kamo
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Patent number: 5462831Abstract: To eliminate the "pi-line" artifact after processing a method of image formation is disclosed in a silver halide industrial X-ray photographic material, comprising on at least one side of a support, at least one gelatin silver halide emulsion layer and a total amount of silver halide, corresponding to from 6 to 20 g of silver nitrate per square meter and per side, and at least one non-sensitive protective antistress coating, wherein said material further comprises a hardening agent different from a vinyl sulphone compound, preferably formaldehyde, and at least one polyoxyalkylene compound as a surfactant in at least one of its hydrophilic layers, and wherein after exposure to direct X-rays said material is subjected in an automatic processing machine to the steps of developing in a developer comprising at least one anionic alkylphenoxy polyalkyleneoxy phosphate ester surfactant, fixing in a fixer which may comprise at least one alpha-ketocarboxylic acid, rinsing and drying.Type: GrantFiled: April 5, 1994Date of Patent: October 31, 1995Assignee: Agfa-Gevaert, N.V.Inventors: Benedictus Jansen, Andre Roefs, Francis Sels, Pieter Perdieus, Raymond Florens
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Patent number: 5411842Abstract: A method for making a photographic silver halide developer composition, preferably immediately before use, by electrolysing an aqueous medium containing a developing agent precursor composition which forms or releases a silver halide developing agent at an electrode upon electrolysis.Type: GrantFiled: April 7, 1994Date of Patent: May 2, 1995Assignee: Eastman Kodak CompanyInventors: Michael Ridgway, Nigel E. Milner, Siu C. Tsoi, Paul C. Ward
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Patent number: 5376509Abstract: A processing chemical for light-sensitive silver halide photographic material, comprising a cyclodextrin compound, which can contribute a decrease in packaging materials, transportation cost and storage space, can be free from lateral cracking at the formation of tablets, and can bring about an improvement in storage stability after being formed into processing solutions (i.e., more free from occurrence of stain during developing and scratches in light-sensitive materials having been processed, caused by deposition of crystals).Type: GrantFiled: November 27, 1992Date of Patent: December 27, 1994Assignee: Konica CorporationInventors: Hiroshi Yoshimoto, Shoji Nishio, Hideki Komatsu, Satomi Kawasaki
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Patent number: 5284733Abstract: A silver halide photographic material is disclosed. The photographic material comprises a support having coated thereon one or more hydrophilic colloidal layers, at least one of the hydrophilic colloidal layers being a negative working silver halide emulsion layer, wherein said silver halide emulsion layer or another hydrophilic colloidal layer contains a water-soluble polymer or copolymer having a quaternary ammonium salt in a repeating unit. The process for forming a high contrast negative image using the photographic material is also disclosed.Type: GrantFiled: October 1, 1991Date of Patent: February 8, 1994Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Yasuhiko Kojima, Naoki Obi, Yasuo Shigemitsu, Kiyoshi Suematsu
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Patent number: 5272045Abstract: Solid anti-fogging agents such as 5-nitroindazole which are otherwise poorly soluble in water are converted to readily water soluble compositions that are solids at room temperature when they are first dissolved in water soluble polymers or other organic compounds that have a melting point above room temperature and do not chemically react with the anti-fogging agent. The anti-foggants are preferably dissolved in the polymer or organic compound at or near the compounds' melting point below 175.degree.C.Type: GrantFiled: November 13, 1992Date of Patent: December 21, 1993Assignee: Sun Chemical CorporationInventors: Dinesh P. Patel, John L. Adkins
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Patent number: 5256523Abstract: A compound (I) having a carrier moiety (CAR) and a releasable development inhibitor moiety (INH) capable of being released during photographic processing by means of at least one timing group (T) bonded to and releasable from the carrier moiety provides improved images in a photographic silver halide element and process when the inhibitor moiety (INH) comprises (R.sup.1) a non-aromatic, sterically hindered substituent group having (a) a tertiary carbon atom bonded directly to the releasable development inhibitor moiety or (b) a secondary carbon atom bonded directly to the releasable development inhibitor moiety and wherein the secondary carbon atom is not part of an unsubstituted carbocyclic ring containing at least 6 carbon atoms. Such compounds, particularly as couplers, are useful in photographic silver halide materials and processes to provide improved acutance and interimage effects.Type: GrantFiled: June 17, 1991Date of Patent: October 26, 1993Assignee: Eastman Kodak CompanyInventors: Richard P. Szajewski, Jerrold N. Poslusny
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Patent number: 5153111Abstract: A composition for color-development of a silver halide color photographic material and a method for processing such using the same wherein the composition comprises an aromatic primary amine color developing agent, a hydroxylamine compound represented by formula (I) or a hydrazine compound represented by formula (II) and at least one polymer selected from the group consisting of a vinyl alcohol homopolymer, a vinyl alcohol copolymer, a vinylpyrrolidone homopolymer, and a vinylpyrrolidone copolymer, being free from sulfite ion, providing a color photographic image high in maximum density and good in whiteness without causing problems by tarry substance in the color developer.Type: GrantFiled: January 24, 1991Date of Patent: October 6, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazuaki Yoshida, Takatoshi Ishikawa, Tadashi Ogawa, Hiroshi Fujimoto, Junichi Yamanouchi, Tomokazu Yasuda
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Patent number: 5015560Abstract: A method of treating a waste solution resulting from the processing of a photographic material with a working solution is disclosed, wherein at least part of said waste solution is absorbed by a resin capable of absorbing at least 50 times its own weight of a liquid.Type: GrantFiled: January 10, 1989Date of Patent: May 14, 1991Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeharu Koboshi, Kazuhiro Kobayashi, Syozo Aoki, Naoki Takabayashi
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Patent number: 4920040Abstract: A silver halide light-sensitive photographic material for a laser light exposure is disclosed. The material comprises a support having thereon at least one light-sensitive silver halide emulsion layer containing silver halide grains therein and a layer adjacent thereto, wherein said silver halide grains are spectrally sensitized with a dye represented by the following formula I, at least one layer of said silver halide emulsion layer and said adjacent layer contains a fluorine-containing ionic surfactant, a non-ionic surfactant and an inorganic salt; ##STR1## The material of the invention excels in each of sensitivity, gradation and maximum density, and exhibits good coloration.Type: GrantFiled: December 1, 1988Date of Patent: April 24, 1990Assignee: Konica CorporationInventor: Kouzi Ono
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Patent number: 4916047Abstract: A silver halide light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, and containing a compound containing a repeating unit, said compound containing a repeating unit being connected at the repeating unit to a compound represented by formula (I) at the position of the PWR or Time moiety:PWR--Time.sub.t PUG (I)wherein PWR represents a moiety capable of releasing (Time.sub.t PUG upon reduction, and PUG represents a group which can fulfil a photographically useful function after the release; Time represents a moiety capable of releasing PUG through a reaction subsequent to the release from PWR in the form of --Time.sub.t PUG; and t represents 0 or 1.Type: GrantFiled: April 29, 1988Date of Patent: April 10, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Keizo Koya, Junichi Yamanouchi, Masaharu Toriuchi, Yoshisada Nakamura
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Patent number: 4849319Abstract: A negative silver halide photographic material comprising a support and at least one silver halide emulsion layer on the support, the emulsion layer or other hydrophilic colloid layer containing a hydrazine derivative, wherein the photographic material further contains an acid polymer and in which the pH of the surface of the photographic material is not more than 5.8. Also, a method for forming a superhigh contrast negative image using the above photographic material is disclosed.Type: GrantFiled: November 20, 1987Date of Patent: July 18, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuaki Inoue, Senzo Sasaoka, Hiroshi Hayashi
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Patent number: 4837133Abstract: There is disclosed a photographic four-color material for the silver dye bleach process, which material, in addition to containing the customary yellow, magenta and cyan image dyes, contains a black layer which is sensitive to infra-red light.The material is suitable e.g. for testing dotted or continuous tone color separation positives.Type: GrantFiled: December 9, 1986Date of Patent: June 6, 1989Assignee: Ciba-Geigy AGInventor: Jakob Kuhn
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Patent number: 4822728Abstract: A color image, wherein granularity is reduced under conditions allowing any sharpness loss to be kept under control, is obtained by image-wise exposing and developing in an alkaline water solution containing a color developer a silver halide color photographic element comprising a support base and at least a silver halide emulsion layer containing dispersed a non-diffusing hydrophobic coupler which upon reactiong with an oxidized developing agent forms a non-diffusing dye, characterized by the fact that said emulsion contains dispersed therein oil droplets, said droplets containing said non-diffusing coupler dissolved therein, and furthermore polymer particles in a quantity sufficient to obtain controlled smearing of the image-forming dye.Type: GrantFiled: December 11, 1987Date of Patent: April 18, 1989Assignee: Minnesota Mining and Manufacturing CompanyInventors: Marco Loiacono, Angelo Vallarino
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Patent number: 4761362Abstract: An image forming process capable of providing photographic images having extremely high contrast and high resolution for use in photoengraving is disclosed, which comprises processing an image-wise exposed silver halide light-sensitive material having at least two silver halide emulsion layers on a support, one of said emulsion layers providing a contrasty gradation and the other of said emulsion layers providing a soft tone gradation, with a hydrazine contrast development system, a tetrazolium contrast development system or a lith development system, wherein the gamma (.gamma.) value of the portion having a density (D) from 0.3 to 1.5 on the characteristic curve obtained is less than 10 and the gamma (.gamma.) value of the portion having a density (D) from 1.5 to 3.0 is at least 10.Type: GrantFiled: December 29, 1986Date of Patent: August 2, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Senzo Sasaoka, Shigenori Moriuchi, Kimitaka Kameoka, Kazunobu Katoh, Yoshio Inagaki
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Patent number: 4755448Abstract: A negative type silver halide photographic material and a method for forming a super high contrast negative image using the photographic material are disclosed. The photographic material comprises a support, at least one silver halide emulsion layer on the support, and at least one light-insensitive colloid layer on the support, said emulsion layer or light-insensitive hydrophilic colloid layer containing a hydrazine derivative, and further contains the tertiary amine salt of an acid polymer.Type: GrantFiled: September 4, 1986Date of Patent: July 5, 1988Assignee: Fuji Photo Film Co., Ltd.Inventor: Kazunobu Katoh
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Patent number: 4710451Abstract: A high contrast silver metal image can be formed in an exposed photographic silver halide emulsion layer material, the silver halide of which is at least 90 mole percent silver bromide, with the balance being silver chloride and/or silver iodide by developing the same in a developing medium in the presence of hydroquinone as sole developing agent, a large amount of sulphite derived from an inorganic sulphite compound, a nitro-indazole anti-fogging agent, and a polyoxyethylene polymer, and an inorganic alkaline compound to impart to the medium a pH of at least 10.5 provided the amounts of these ingredients meets certain requirements.Type: GrantFiled: March 24, 1986Date of Patent: December 1, 1987Assignee: AGFA-Gevaert N.V.Inventor: Richard A. Ooms
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Patent number: 4680247Abstract: Photographic processing compositions containing a light-reflecting pigment and a styrene-butadiene copolymer are disclosed. The photographic processing compositions are useful in photographic diffusion transfer film units and processes for the provision of permanent photographic laminates. A light-reflecting layer formed in a photographic laminate from such a processing composition exhibits a reduced tendency toward cohesion or adhesion failure and separation.Type: GrantFiled: March 31, 1986Date of Patent: July 14, 1987Assignee: Polaroid Corporation, Patent Dept.Inventor: Richard J. Murphy
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Patent number: 4624913Abstract: A silver halide photographic light-sensitive material is described, comprising at least one light-sensitive silver halide emulsion layer on a support, wherein the emulsion in said light-sensitive silver halide emulsion layer comprises a silver iodobromide emulsion containing 3 mol % or more of iodide, and at least one of said light-sensitive emulsion layer or another hydrophilic colloid layer contains a polyoxyethylene type surface active agent and at least one of said light-sensitive emulsion layer or another hydrophilic colloid layer contains a meso-ionic triazolium compound represented by formula (I) ##STR1## wherein X represents a sulfur ion or --N--R.sup.4, and R.sup.1, R.sup.2, R.sup.3, and R.sup.4 each represents a hydrogen atom or a substituted or nonsubstituted alkyl group, aryl group, or heterocyclic group, or R.sup.1 and R.sup.2, R.sup.2 and R.sup.3 or R.sup.3 and R.sup.4 can together form a heterocyclic ring.Type: GrantFiled: February 11, 1985Date of Patent: November 25, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuaki Miyasaka, Koki Nakamura, Shigeki Yokoyama
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Patent number: 4401751Abstract: Silver halide emulsions, which have been precipitated in the presence of polymers having recurring units with a 8-hydroxy quinoline structure are suitable for the preparation of vesicular images.Type: GrantFiled: September 28, 1981Date of Patent: August 30, 1983Assignee: Agfa-Gevaert AktiengesellschaftInventors: Edith Weyde, Harald von Rintelen, Wilhelm Saleck, Heinz-Horst Teitscheid
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Patent number: 4323643Abstract: A silver halide photographic light-sensitive material is described, comprising at least one silver halide photographic emulsion layer, wherein at least one layer contains a compound represented by formula (I) ##STR1## wherein R.sup.1 and R.sup.2 each represents hydrogen, an aliphatic group, an aromatic group, or a heterocyclic group;R.sup.3 represents hydrogen or an aliphatic group, andX represents a divalent aromatic group.The light-sensitive material provides high-contrast negative images and good dot image quality.Type: GrantFiled: November 6, 1980Date of Patent: April 6, 1982Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroyuki Mifune, Shigeo Hirano, Yoshitaka Akimura
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Patent number: 4323642Abstract: Lignosulfonates are incorporated in photographic developing compositions containing an indazole antifoggant in order to prevent or retard the precipitation of the indazole. Both black-and-white developing compositions, containing such developing agents as dihydroxybenzenes and/or pyrazolidones, and color developing compositions, containing primary aromatic amino color developing agents, are effectively stabilized against precipitation of indazole antifoggants by the lignosulfonates.Type: GrantFiled: March 9, 1981Date of Patent: April 6, 1982Assignee: Eastman Kodak CompanyInventor: Steven R. Levinson
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Patent number: 4287296Abstract: Direct positive silver halide emulsions are provided which contain fogged silver halide grains the said grains being heterodisperse and containing silver iodide in an amount of more than 10 mole % and at most 20 mole % relative to the total amount of silver halide. The emulsions have increased sensitivity and reduced gradation which is suitable for continuous tone reproduction.Type: GrantFiled: November 20, 1973Date of Patent: September 1, 1981Assignee: Agfa-Gevaert, N.V.Inventors: Willy J. Vanassche, Herman A. Pattyn, Erik Moisar, Sieghart Klotzer
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Patent number: 4276370Abstract: Novel photographic processing compositions including a polymeric oxime viscosity-increasing reagent for processing an exposed film unit to provide a photographic image. While this photographic image may be in black-and-white or in color and prepared by any of the heretofore known systems, of particular interest are color diffusion transfer systems for preparing a color image viewable without separation of any of the components or layers of the photographic product. The invention also includes a novel class of polymeric oximes which may be employed in such compositions.Type: GrantFiled: November 5, 1979Date of Patent: June 30, 1981Assignee: Polaroid CorporationInventor: Lloyd D. Taylor
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Patent number: 4272614Abstract: A silver halide photographic light-sensitive material having at least one silver halide photographic emulsion layer comprising substantially surface latent image type silver halide grains, and containing in said photographic emulsion layer or at least one of other hydrophilic colloid layers a compound represented by the following general formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom, an aliphatic group which may be substituted or an aromatic group which may be substituted; Ar represents a divalent aromatic group which may be substituted; Y represents a divalent linking group; n represents 0 or 1; R.sup.2 represents a hydrogen atom, an aliphatic group which may be substituted or an aromatic group which may be substituted; and Z represents a nonmetallic atomic group necessary to form a 5-membered or 6-membered heterocyclic ring together with the ##STR2## linkage.Type: GrantFiled: December 20, 1979Date of Patent: June 9, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroyuki Mifune, Shigeo Hirano
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Patent number: 4269925Abstract: Polymeric optical filter agents and photographic products and processes using same are disclosed. The polymeric optical filter agents are pH-sensitive optical filter agents comprising polymeric backbone units having the following hydrazone moiety: ##STR1## where R is a group which can provide a double bond for conjugation with the ##STR2## portion of the moiety to provide light-absorbing capability for the agent at a pH above its pKa, and X represents a substituent of R providing at least one electron-withdrawing group. The polymeric pH-sensitive optical filter agents have a highly colored light-absorbing form at a pH above the pKa and are substantially non-absorbing at a pH below the pKa. The polymeric optical filter agents are useful in photographic film units and processes for the protection of photoexposed photosensitive elements against the occurence of fogging during in-light development.Type: GrantFiled: October 29, 1979Date of Patent: May 26, 1981Assignee: Polaroid CorporationInventors: Derek H. R. Barton, Irena Y. Bronstein-Bonte, Lloyd D. Taylor
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Patent number: 4266481Abstract: Aqueous solutions are provided for treating image-bearing lithographic plates.Type: GrantFiled: June 29, 1979Date of Patent: May 12, 1981Assignee: The Dow Chemical CompanyInventors: Walter L. Garrett, Ralph G. Czerepinski