Brightener Containing Patents (Class 430/933)
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Patent number: 7449282Abstract: A lithographic printing plate precursor comprising a photosensitive layer comprising: (A) a fluorescent brightening agent; (B) an activator compound being capable of inducing a chemical change by an interaction with light absorption of the fluorescent brightening agent to produce at least one of a radical, an acid and a base; (C) a compound being capable of undergoing a reaction by an effect of at least one of a radical, an acid and a base to irreversibly change in its physical or chemical properties; and (D) a polyurethane resin binder, wherein the polyurethane resin binder is synthesized from at least following compounds (i), (ii), (iii) and (iv): (i) a diisocyanate compound; (ii) a diol compound having at least one carboxyl group; (iii) a diol compound having a logP value of less than 0; and (iv) a diol compound having a logP value of 0 or more, with the proviso that each of the diol compound (iii) and the diol compound (iv) does not have a carboxyl group.Type: GrantFiled: April 28, 2005Date of Patent: November 11, 2008Assignee: FUJIFILM CorporationInventor: Akinori Shibuya
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Patent number: 7108962Abstract: A photographic processing composition, containing at least one compound of formula (I) or (II): A1-X-L-Y-A2??(I) wherein A1 and A2 each are a specific aryl or aromatic heterocyclic group; L is a specific arylene or divalent aromatic heterocyclic group; X and Y each are a specific divalent group; the compound of (I) contains at least two of —SO3M or —CO2M, but not contains —N?N— or —SH; M is a hydrogen, alkali or alkali earth metal, ammonium, or pyridinium; wherein A11 is a specific tri- or tetra-valent aromatic hydrocarbon or aromatic heterocyclic group; A12 is an aryl or aromatic heterocyclic group; X1 is a divalent group; M1 is a hydrogen, alkali or alkali earth metal, ammonium, or pyridinium; the molecule of (II) does not contain —N?N— or —SH; n is 3 or 4; r and s each are 0 to 10, (r+s) is 2 or more.Type: GrantFiled: January 24, 2003Date of Patent: September 19, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Makoto Suzuki, Yasufimi Nakai
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Patent number: 7029808Abstract: A radiation-sensitive coating material, in addition to a base polymer, has a solvent and a radiation-active substance which forms an acid on irradiation by light (including energetic electrons or ions), a fluorescent substance which alters its fluorescence property subject to a change in the acid content of its surroundings. In a process for exposing a substrate coated with the coating material at least one sensor in the exposure chamber of the exposure apparatus measures the intensity of the change in fluorescence spectrum as a function of time during the exposure operation. From the course of intensity at the time of an individual line of the fluorescence spectrum or the intensity integrated over a wavelength interval it is possible to determine the endpoint of the exposure operation by way of electronic algorithms. Deviations from experimentally determined ideal curves of the intensity course provide information on erroneous functions in the course of coating material application and exposure.Type: GrantFiled: September 29, 2003Date of Patent: April 18, 2006Assignee: Infineon Technologies AGInventors: Jenspeter Rau, Siegfried Schwarzl, Stefan Wurm
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Patent number: 6890706Abstract: A process for removing stain in a photographic material is described which process comprises incorporation of at least one compound of the formula (I) wherein X is O or NH; n is 1 or 2, p is 0, 1 or 2, M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; each R1, independently, is an aminoacid residue from which a hydrogen atom on the amino group has been removed; each R2, independently, is hydrogen, C1-C8alkyl, C1-C8alkoxy, halogen, cyano, COOR, wherein R is hydrogen or C1-C3alkyl, CONH—R in which R has its previous significance, SO2NH—R in which R has its previous significance, NH—COR in which R has its previous significance, or SO3M, wherein M has its previous significance, or, if n is 1, R2 can also be CO—R3 in which R3 is C1-C3alkyl or phenyl, in that photographic material.Type: GrantFiled: November 20, 2002Date of Patent: May 10, 2005Assignee: Ciba Specialty Chemicals CorporationInventors: Christophe Bulliard, Georges Metzger, Sonia Megert
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Patent number: 6824963Abstract: A method of chemically marking photosensitive material that needs to be digitally scanned and adjusted rather than optically printed to produce a satisfactory hardcopy.Type: GrantFiled: September 30, 2003Date of Patent: November 30, 2004Assignee: Eastman Kodak CompanyInventors: John R. Fyson, Peter J. Twist
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Patent number: 6818367Abstract: The invention relates to an imaging element comprising an imaging layer and a support, wherein the support comprises a base material having thereon at least two polyolefin layers, wherein the uppermost layer of the at least two polyolefin layers comprises a mixture of optical brighteners comprising a Compound A having the following formula: a Compound B having the following formula: and a Compound C having the following formula: wherein the layers below the uppermost layer of the at least two polyolefin layers comprise migratory optical brightener; and wherein the imaging layer is on the same side of the base material as the at least two polyolefin layers. The inventive support unexpectedly minimizes exudation of the brightener at the polyolefin surface and provides excellent absorption/emission characteristics, brightening power and heat to meet the critical requirements of the photographic field.Type: GrantFiled: April 15, 2003Date of Patent: November 16, 2004Assignee: Eastman Kodak CompanyInventors: Elizabeth K. Priebe, William A. Mruk, James C. Pirchner, Suresh Sunderrajan
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Patent number: 6767681Abstract: A method of processing photosensitive materials in which one or more chemical compounds are at least partially retained after processing. The chemical compounds are unique to a particular process used by a copyright owner. The absence of the unique compounds in a processed material thus indicates that the processing has been without the authorization of the copyright owner.Type: GrantFiled: May 13, 2003Date of Patent: July 27, 2004Assignee: Eastman Kodak CompanyInventor: John R. Fyson
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Patent number: 6753425Abstract: A processing composition for silver halide photographic light-sensitive materials, comprises a bis[2,6-diaminotriazin-4-yl]arylenediamine derivative having at least one of a sulfonic acid group, a carboxylic group and a hydroxyl group within the molecule. This processing composition can be applied to a color developer, a bleaching agent, a fixing agent, a bleach-fixing agent and a stabilizing agent and also to a processing agent in a concentration on use, a concentrated processing agent and a solid processing agent.Type: GrantFiled: April 16, 2003Date of Patent: June 22, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasufumi Nakai, Keizo Kimura, Masashi Ogiyama
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Patent number: 6746832Abstract: A color image forming method that includes subjecting a silver halide color photosensitive material to an exposure, and then processing it with a processing solution, wherein at least one silver halide emulsion in the silver halide layers has silver halide grains of AgClBr, AgCeI, or AgClIBr grains, having a AgCl content of 95 mol % or more, and having at least one region where a AgBr and/or AgI content is higher than the other region; the exposure is performed based on digital image data for area modulation; and the processing solution contains at least one compound represented by formula (I) or (II):Type: GrantFiled: March 21, 2003Date of Patent: June 8, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Kentaro Okazaki, Takuya Yokokawa, Yasufumi Nakai
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Publication number: 20040067457Abstract: A method of chemically marking photosensitive material that needs to be digitally scanned and adjusted rather than optically printed to produce a satisfactory hardcopy.Type: ApplicationFiled: September 30, 2003Publication date: April 8, 2004Inventors: John R. Fyson, Peter J. Twist
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Publication number: 20040063046Abstract: A method of chemically marking photosensitive material that needs to be digitally scanned and adjusted rather than optically printed to produce a satisfactory hardcopy.Type: ApplicationFiled: September 30, 2003Publication date: April 1, 2004Inventors: John R. Fyson, Peter J. Twist
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Publication number: 20040009439Abstract: A processing composition for silver halide photographic light-sensitive materials, comprises a bis[2,6-diaminotriazin-4-yl]arylenediamine derivative having at least one of a sulfonic acid group, a carboxylic group and a hydroxyl group within the molecule. This processing composition can be applied to a color developer, a bleaching agent, a fixing agent, a bleach-fixing agent and a stabilizing agent and also to a processing agent in a concentration on use, a concentrated processing agent and a solid processing agent.Type: ApplicationFiled: April 16, 2003Publication date: January 15, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Yasufumi Nakai, Keizo Kimura, Masashi Ogiyama
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Publication number: 20030224300Abstract: A photographic processing composition for silver halide color photographic lightsensitive material, comprising at least one compound represented by the formula (I):Type: ApplicationFiled: June 18, 2003Publication date: December 4, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Makoto Suzuki, Yasufumi Nakai, Yoshiharu Yabuki
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Patent number: 6653059Abstract: The present invention is a liquid processing composition for a color development of a silver halide color photographic material, which comprises: at least one specific compound; at least one glycol selected from the group consisting of ethylene glycol, diethylene glycol and triethylene glycol; and at least one polyethylene glycol having a number average molecular weight of from 1,000 to 2,000, and a development processing method using the same.Type: GrantFiled: August 22, 2002Date of Patent: November 25, 2003Assignee: Fuji Photo Film Co., Ltd.Inventor: Hiroyuki Seki
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Publication number: 20030215757Abstract: A method of processing photosensitive materials in which one or more chemical compounds are at least partially retained after processing. The chemical compounds are unique to a particular process used by a copyright owner. The absence of the unique compounds in a processed material thus indicates that the processing has been without the authorization of the copyright owner.Type: ApplicationFiled: May 13, 2003Publication date: November 20, 2003Applicant: Eastman Kodak CompanyInventor: John R. Fyson
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Patent number: 6638696Abstract: This invention provides a display element comprising a support, a phosphorescent material, and at least one layer containing a silver halide emulsion, wherein the phosphorescent material is not excited upon exposure of the silver halide emulsion. It further provides methods of exposing and processing such display elements.Type: GrantFiled: July 16, 2002Date of Patent: October 28, 2003Assignee: Eastman Kodak CompanyInventor: Kevin M. Donovan
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Publication number: 20030198902Abstract: A photographic processing composition, containing at least one compound of formula (I) or (II):Type: ApplicationFiled: January 24, 2003Publication date: October 23, 2003Inventors: Makoto Suzuki, Yasufimi Nakai
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Patent number: 6632594Abstract: A processing composition for a silver halide photographic material, which comprises at least one compound selected from the group consisting of compounds represented by the following general formulae (I) and (II):Type: GrantFiled: January 29, 2001Date of Patent: October 14, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasufumi Nakai, Keizo Kimura, Shigeaki Tanaka, Yoshiharu Yabuki
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Patent number: 6620579Abstract: The present invention provides a processing composition for a silver halide color photographic photosensitive material. The processing composition has excellent functions of reducing stain caused by residual dyes in a photosensitive material and of making no segregated deposit even in low temperature storage of the processing composition. The processing composition of the invention contains a bis-triazinylarylenediamine derivative and a diaminostilbene derivative. The invention also provides an image-formation process using the processing composition of the invention.Type: GrantFiled: December 27, 2001Date of Patent: September 16, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasufumi Nakai, Makoto Suzuki
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Publication number: 20030170574Abstract: The invention relates to a photographic label comprising a pragmatic polymer sheet, at least one layer comprising at least one image forming layer comprising photosensitive silver halide grains and dye forming coupler above said pragmatic polymer sheet, wherein said at least one image forming layer has an exposure time to obtain a usable Dmax of 1.5 of less than 0.01 seconds, wherein said at least one image forming layer is substantially free of image dye stabilizers, and wherein said polymer sheet has an L* of greater than 95.Type: ApplicationFiled: December 21, 2001Publication date: September 11, 2003Applicant: Eastman Kodak CompanyInventors: John B. Rieger, Robert P. Bourdelais
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Patent number: 6605420Abstract: A processing composition for silver halide photographic light-sensitive materials, comprises a bis[2,6-diaminotriazin-4-yl]arylenediamine derivative having at least one of a sulfonic acid group, a carboxylic group and a hydroxyl group within the molecule. This processing composition can be applied to a color developer, a bleaching agent, a fixing agent, a bleach-fixing agent and a stabilizing agent and also to a processing agent in a concentration on use, a concentrated processing agent and a solid processing agent.Type: GrantFiled: August 21, 2001Date of Patent: August 12, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasufumi Nakai, Keizo Kimura, Masashi Ogiyama
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Publication number: 20030148231Abstract: A process for removing stain in a photographic material is described which process comprises incorporation of at least one compound of the formula (I) 1Type: ApplicationFiled: November 20, 2002Publication date: August 7, 2003Inventors: Christophe Bulliard, Georges Metzger, Sonia Megert
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Publication number: 20030148230Abstract: The present invention is a liquid processing composition for a color development of a silver halide color photographic material, which comprises: at least one specific compound; at least one glycol selected from the group consisting of ethylene glycol, diethylene glycol and triethylene glycol; and at least one polyethylene glycol having a number average molecular weight of from 1,000 to 2,000, and a development processing method using the same.Type: ApplicationFiled: August 22, 2002Publication date: August 7, 2003Inventor: Hiroyuki Seki
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Publication number: 20030108827Abstract: A method of chemically marking photosensitive material that needs to be digitally scanned and adjusted rather than optically printed to produce a satisfactory hardcopy.Type: ApplicationFiled: December 9, 2002Publication date: June 12, 2003Applicant: Eastman Kodak CompanyInventors: John R. Fyson, Peter J. Twist
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Patent number: 6537656Abstract: The invention relates to an imaging member comprising an imaging layer and a base wherein said base comprises a closed cell foam core sheet and adhered thereto an upper and lower flange sheet, and wherein said imaging member has a stiffness of between 50 and 250 millinewtons.Type: GrantFiled: November 28, 2000Date of Patent: March 25, 2003Assignee: Eastman Kodak CompanyInventors: Narasimharao Dontula, Suresh Sunderrajan, Thaddeus S. Gula, William A. Mruk
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Publication number: 20030054298Abstract: A photographic processing composition for silver halide color photographic lightsensitive material, comprising at least one compound represented by the formula (I):Type: ApplicationFiled: March 29, 2002Publication date: March 20, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Makoto Suzuki, Yasufumi Nakai, Yoshiharu Yabuki
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Patent number: 6521399Abstract: The invention relates to a photographic element comprising at least one biaxially oriented sheet wherein said biaxially oriented sheet when viewed from a surface of said element emits light in the visible spectrum when exposed to ultraviolet radiation.Type: GrantFiled: June 9, 1998Date of Patent: February 18, 2003Assignee: Eastman Kodak CompanyInventors: Robert P. Bourdelais, Peter T. Aylward, Thaddeus S. Gula
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Publication number: 20020150846Abstract: The present invention provides a processing composition for a silver halide color photographic photosensitive material. The processing composition has excellent functions of reducing stain caused by residual dyes in a photosensitive material and of making no segregated deposit even in low temperature storage of the processing composition. The processing composition of the invention contains a bis-triazinylarylenediamine derivative and a diaminostilbene derivative. The invention also provides an image-formation process using the processing composition of the invention.Type: ApplicationFiled: December 27, 2001Publication date: October 17, 2002Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Yasufumi Nakai, Makoto Suzuki
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Patent number: 6447976Abstract: The invention relates to an imaging member comprising an imaging layer and a base wherein said base comprises a closed cell foam core sheet and adhered thereto an upper and lower flange sheet, and wherein said imaging member has a stiffness of between 50 and 250 millinewtons and at least one layer of said base comprises whitening agent and said element has L* of greater than 90.4.Type: GrantFiled: November 28, 2000Date of Patent: September 10, 2002Assignee: Eastman Kodak CompanyInventors: Narasimharao Dontula, Suresh Sunderrajan, Thaddeus S. Gula, William A. Mruk, Terry A. Heath
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Publication number: 20020055071Abstract: A processing composition for silver halide photographic light-sensitive materials, comprises a bis[2,6-diaminotriazin-4-yl]arylenediamine derivative having at least one of a sulfonic acid group, a carboxylic group and a hydroxyl group within the molecule. This processing composition can be applied to a color developer, a bleaching agent, a fixing agent, a bleach-fixing agent and a stabilizing agent and also to a processing agent in a concentration on use, a concentrated processing agent and a solid processing agent.Type: ApplicationFiled: August 21, 2001Publication date: May 9, 2002Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Yasufumi Nakai, Keizo Kimura, Masashi Ogiyama
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Publication number: 20010026909Abstract: A multi-part color developing kit includes at least two parts (or solutions) of photochemical compositions that can be mixed to provide a color developing composition useful for obtaining color photographic images. A first aqueous solution is formulated with a color developing agent in free base form, an antioxidant for the color developing agent, an inorganic base, a triazinylstilbene optical brightening agent, an chemical base and a water-miscible or water-soluble hydroxy-substituted, straight-chain organic solvent. A second aqueous solution is formulated with a buffering agent, the same or different chemical base and a phosphonic acid metal ion sequestering agent. Both solutions have a pH and homogeneity to provide a clear color developing composition that is safer for use and disposal.Type: ApplicationFiled: May 9, 2001Publication date: October 4, 2001Inventors: Jean M. Buongiorne, Charles M. Darmon, Michael J. Haight, Erika S. McLarney, Barry C. Kocher, Sheridan E. Vincent, Charles S. Christ
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Patent number: 6284444Abstract: A process for the processing of an imagewise exposed photographic material which has been subjected to development and bleach-fixing comprises a plurality of sequential washing steps and where a stain reducing agent is employed wherein the photographic material is contacted with an effective amount of the stain reducing agent in the wash liquid in a first washing step and the photographic material is subjected to a following washing step to remove the stain reducing agent. The process may employ a plurality of wash tanks in which the developed material is washed sequentially and the stain reducing agent is present in the wash liquid in a first wash tank and removed from the photographic material by the wash liquid in one or more following wash tanks. The temperature of wash liquids in the tanks is preferably within the range 40 to 70° C., preferably 45 to 65° C.Type: GrantFiled: August 18, 2000Date of Patent: September 4, 2001Assignee: Eastman Kodak CompanyInventor: Peter J. Twist
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Patent number: 6190827Abstract: A laser donor element comprising a transparent support having thereon the following layers in the order recited: a) a hydrophilic layer; b) a propellant layer comprising a gas-producing polymer being capable of forming a gas upon heating by the laser and an infrared-absorbing material, the propellant layer having been coated using a polar solvent having an Et value of between about 0.3 and 1.0; and c) a colorant transfer layer comprising a white pigment and an optical brightener dispersed in a binder.Type: GrantFiled: May 4, 2000Date of Patent: February 20, 2001Assignee: Eastman Kodak CompanyInventor: Charles H. Weidner
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Patent number: 6174658Abstract: Disclosed is a silver halide photographic light sensitive material which has each of at least one silver halide photographic light sensitive emulsion layer and non-lightsensitive hydrophilic colloid layer, and solid fine particles of compound demonstrating fluorescent whitening effect in at least one of the silver halide photographic light sensitive emulsion layer and non-lightsensitive hydrophilic colloid layer. A silver halide photographic light sensitive material having an image excellent in sharpness and improved in whiteness and bright value of print is provided.Type: GrantFiled: November 3, 1998Date of Patent: January 16, 2001Assignee: Konica CorporationInventor: Katsumasa Yamazaki
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Patent number: 6127104Abstract: The present invention concerns a novel film for light boxes, in particular a reversal film for light box displays comprising a transparent support covered, in order, with a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a blue-sensitive silver halide emulsion layer, the support being covered on at least one of its faces with a layer comprising an opacifying compound in a quantity such that the minimum density of the film is between 0.2 and 0.6. This film also has compatibility with existing processing methods intended for reversal photographic products.Type: GrantFiled: June 22, 1998Date of Patent: October 3, 2000Assignee: Eastman Kodak CompanyInventors: Gerard M. Droin, Yannick Begel, Didier M. Chigot
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Patent number: 6120982Abstract: A silver halide photographic material comprises a red sensitive layer which contains a high chloride emulsion sensitized with at least two red sensitizing dyes. By adjusting the relative amounts of the two dyes the heat sensitivity of the red layer can be adjusted to match that of the blue sensitive and green sensitive layers to maintain color balance despite thermal fluctuations.Type: GrantFiled: April 8, 1996Date of Patent: September 19, 2000Assignee: Eastman Kodak CompanyInventors: Richard Lee Parton, Paul Timothy Hahm
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Patent number: 6080532Abstract: The invention relates to a photographic element comprising a transparent polymer sheet, at least one image layer on the topside and one image layer on the bottom side wherein said polymer sheet has a stiffness of between 20 and 100 millinewtons, and said photographic element has a spectral transmission of at least 90% and a reflection density less than 10%.Type: GrantFiled: September 17, 1998Date of Patent: June 27, 2000Assignee: Eastman Kodak CompanyInventors: Alphonse D. Camp, Peter T. Aylward, Robert P. Bourdelais
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Patent number: 6013425Abstract: Concentrated and working strength photographic fixing compositions include a photographic fixing agent, a triazinylstilbene compound, and a water-soluble stabilizing compound that has a molecular weight of less than 200, from 2 to 10 carbon atoms, and at least two amino or hydroxy functional groups. The triazinylstilbene is provided in a concentrated fixer additive composition in a mixture with the stabilizing compound. The fixing compositions also include predominantly ammonium ions, and can be used to provide images in color photographic materials, and particularly in color reversal films, with reduced residual sensitizing dye stain.Type: GrantFiled: March 31, 1999Date of Patent: January 11, 2000Assignee: Eastman Kodak CompanyInventors: Mary E. Craver, Jean M. Buongiorne
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Patent number: 5972590Abstract: The present invention concerns a radiographic product which makes it possible to obtain an image with no residual yellow coloring. The radiographic product comprises at least one photosensitive silver halide tabular grain emulsion spectrally sensitized with a spectral sensitizing dye in the blue region having an emission peak between 400 and 500 nm, and an optical brightener derived from 4,4'-diaminostilbene disulfonic acid having at least three anionic sulfo groups, put in the photosensitive layer of the radiographic products or in at least one layer situated between the photo-sensitive layer and the support. The radiographic product is applicable to radiographic systems including one or two intensifying screens.Type: GrantFiled: March 6, 1997Date of Patent: October 26, 1999Assignee: Eastman Kodak CompanyInventors: Gerard A. Friour, Francoise M. Thomas
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Patent number: 5925506Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having on one surface thereof photographic layers including a silver halide emulsion layer, at least one of the photographic layers contains a fluorescent whitening agent, and satisfies the following equation 1:(A/B)<0.03 Equation 1wherein A is an intensity of fluorescent light at the maximum fluorescent wavelength generated from the light-sensitive material before processing when the light-sensitive material is irradiated by exciting light of wavelength of 360 nm and B is an intensity of fluorescent light at the maximum fluorescent wavelength thereof generated from the area not exposed to light of the light-sensitive material after processing when the processed light-sensitive material is irradiated by exciting light of wavelength of 400 nm.Type: GrantFiled: October 31, 1997Date of Patent: July 20, 1999Assignee: Konica CorporationInventors: Hirokazu Sato, Shigeo Chino, Masahiro Shibuya
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Patent number: 5817448Abstract: A silver halide photographic material comprising a support having provided thereon at least one light-sensitive silver halide emulsion layer, wherein a silver halide emulsion in said at least one light-sensitive silver halide emulsion layer is a high silver chloride emulsion having a silver chloride content of 95 mol % or more, said support comprises a resin coated paper, and a resin layer of the side on which the light-sensitive silver halide emulsion layer is provided of said resin coated paper comprises at least a titanium dioxide pigment and at least one brightening agent(s) selected from the group consisting of a bis(benzoxazolyl)naphthalene based brightening agent, a bis(benzoxazolyl)thiophene based brightening agent, a coumarin based brightening agent and a pyrazoline based brightening agent.Type: GrantFiled: January 24, 1997Date of Patent: October 6, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroshi Hayashi, Yuji Shirakura
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Patent number: 5807666Abstract: The present invention provides a photographic element comprising an infrared light sensitive silver halide emulsion layer containing silver halide grains that exhibit low cubicity and are sensitized to a maximum absorption over 700 nm with a carbocyanine dye free of water soluble groups, wherein said layer additionally comprises a pyrimidino- or triazino-stilbene compound containing at least 6 sulfonic acid or sulfonate substituents.Type: GrantFiled: November 30, 1995Date of Patent: September 15, 1998Assignee: Eastman Kodak CompanyInventors: Anthony Adin, Anne Troxell Wyand
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Patent number: 5707781Abstract: The present invention relates a photopolymerizable composition which comprises:A) one or more ethylenically unsaturated, free-radical polymerizable monomers;B) one or more organic binders; andC) one or more photoinitiators, wherein the photoinitiator is an acyl or diacyl phosphine oxide, in combination with a fluorescent optical brightener;and a process for producing such a photopolymerizable composition.Type: GrantFiled: May 5, 1995Date of Patent: January 13, 1998Assignee: Bayer CorporationInventor: Wojciech A. Wilczak
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Patent number: 5534395Abstract: A method of processing a silver halide color photographic material by processing with a color developing solution an imagewise exposed silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and immediately thereafter processing said photographic material with a bleach-fixing solution, wherein said bleach-fixing solution contains an imidazole compound represented by the following formula (.alpha.) and the replenishment rate of said bleach-fixing solution is 200 ml or less per m.sup.2 of the photographic material: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, a hydroxyalkyl group having from 1 to 5 carbon atoms, or an alkenyl group.Type: GrantFiled: June 6, 1995Date of Patent: July 9, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsushige Kamada, Kazuaki Yoshida
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Patent number: 5523200Abstract: The invention generally relates to a method of silver halide grain finishing comprising providing a high chloride silver halide grain emulsion and adding a silver bromide fine grain Lippmann emulsion during the chemical sensitization heat cycle for each grain wherein said fine grain emulsion has a photographically useful compound adhered to said fine grain Lippmann emulsion.Type: GrantFiled: February 17, 1995Date of Patent: June 4, 1996Assignee: Eastman Kodak CompanyInventors: Paul T. Hahm, Walter H. Isaac, Heinz E. Stapelfeldt
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Patent number: 5512620Abstract: Benzoxazolyl brightner compounds and thermoplastic combinations containing such are provided herein. The thermoplastic compositions comprise a thermoplastic resin, a phosphite heat stabilizer present in reduced levels, a brightner present in reduced levels and a pigment. Preferably the thermoplastic resin composition is transparent in nature. The compositions are useful for making molded and blow molded articles which require high levels of transparency, for example, glazing materials such thermoplastic windows. The composition exhibits enhanced appearance, namely a bright natural color in combination with low levels of yellowness by utilizing in combination reduced levels of phosphite and reduced levels of brightner, with moderate levels of pigment.Type: GrantFiled: May 5, 1994Date of Patent: April 30, 1996Assignee: General Electric CompanyInventors: Henricus H. M. van Hout, James F. Hoover, Karl H. Roell, Augustina M. Willemsen
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Patent number: 5500332Abstract: An ultraviolet absorbing compound of formula (I) below, and photographic elements containing such a compound as an ultraviolet absorber: ##STR1## wherein: R.sub.4 is H or an alkyl group, and the benzo or phenyl ring shown may be further substituted or unsubstituted;X is --C(O)O-- wherein the carbonyl carbon is bonded to the N of NR.sub.4, or X is --SO.sub.2 --;L is a bivalent linking group;p is 0 or 1;A* is an alkyl group having an asymmetric carbon or silicon atom, and;wherein the ultraviolet absorbing compound of formula (I) is a mixture of two enantiomers about the asymmetric carbon or silicon of A*.Type: GrantFiled: April 26, 1995Date of Patent: March 19, 1996Assignee: Eastman Kodak CompanyInventors: Lal C. Vishwakarma, Glenn Brown
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Patent number: 5480768Abstract: A method for processing an exposed silver halide photographic light-sensitive material is provided, comprisingdeveloping the photographic material with a developer,fixing the photographic material with a fixer,stabilizing the photographic material with a stabilizer, andreplenishing at least one of the developer, the fixer and the stabilizer by supplying a processing composition,wherein the processing composition is a solid composition, meeting the following requirement,2.ltoreq.S/R.ltoreq.70wherein S is a dissolving time (in minutes) of a unit by weight of the solid composition supplied and R is an amount (in m.sup.2) of the photographic material processed per unit weight of the solid composition supplied.Type: GrantFiled: February 14, 1994Date of Patent: January 2, 1996Assignee: Konica CorporationInventors: Kenji Ishida, Shigeharu Koboshi
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Patent number: 5395748Abstract: An inexpensive, ballasted optical brightener for use in photographic elements is prepared by reacting an optical brightener of the formula ##STR1## where M is a cation; X is a group capable of undergoing nucleophilic displacement; and Z is ##STR2## or --O--R.sub.3, where each of R1 and R2 is a hydrogen atom, or an aromatic group which can be unsubstituted or substituted with one or more groups unreactive towards X; and R3 is an aromatic group which can be unsubstituted or substituted with one or more groups unreactive towards Xwith a water soluble polymer, such as gelatin. The resulting ballasted optical brightener is stable in aqueous photographic compositions.Type: GrantFiled: December 8, 1993Date of Patent: March 7, 1995Assignee: Eastman Kodak CompanyInventors: Anthony Adin, Pranab Bagchi
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Patent number: 5395742Abstract: There is disclosed a novel diaminostilbene series compound, a method for forming an image using the same, and a composition comprising the same. The diaminostilbene compound is represented by the following formula (I): ##STR1## wherein L.sup.1 and L.sup.2, which are the same or different, each represent --OR.sup.1 or --N--R.sup.2 (R.sup.3), wherein the four substituents L.sup.1 and L.sup.2 have four or more substituents in total selected from substituents represented by the following formula (II);R.sup.1 and R.sup.2 each represent a hydrogen atom, an alkyl group, or an alkyl group having a substituent selected from substituents represented by the formula (II);R.sup.3 represents an alkyl group or an alkyl group having a substituent selected from substituents represented by the formula (II); andM represents a hydrogen atom, an alkali metal, an ammonium, or a pyridinium:formula (II)--SO.sub.3 M, --OSO.sub.3 M, --COOM, and --NR.sub.Type: GrantFiled: May 16, 1994Date of Patent: March 7, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuaki Deguchi, Toshiaki Kubo