Mordanting Patents (Class 430/371)
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Patent number: 7063925Abstract: The invention relates to a photographic article comprising a base material carrying at least one layer comprising a photographic image formed by combination of dyes formed from couplers wherein areas of said photo image are colored without dyes formed by couplers.Type: GrantFiled: June 20, 2003Date of Patent: June 20, 2006Assignee: Eastman Kodak CompanyInventors: William T. Rochford, Robert P. Bourdelais, Mridula Nair
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Patent number: 6960426Abstract: This invention concerns a luminescent optical memory material and method of forming this material, including the encoding of information by a photographic process. The method involves the use of silver halide crystals of a defined size range, with the optional use of sensitizers, emulsion stabilizers, and other agents followed by the absorption of luminescent dyes on the developed silver particle to form a luminescent optical memory system. The method involves synthesis of a photographic emulsion with silver halide crystals of a defined size range, applying photographic emulsion to a substrate, exposing to light photochemical treatment and a process of transformation of the silver particles formed in the places exposed by light into luminescent particles. The method involves obtaining a multi-layer luminescent material for a three-dimensional optical memory devices.Type: GrantFiled: January 15, 2002Date of Patent: November 1, 2005Assignee: D Data Inc.Inventors: Eugene B. Levich, Jacob N. Malkin, Mark A. Alperovich, Boris M. Shapiro
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Patent number: 6593042Abstract: The invention relates to a photographic article comprising abase material carrying at least one layer comprising a photographic image formed by combination of dyes formed from couplers wherein areas of said photo image are colored without dyes formed by couplers.Type: GrantFiled: December 21, 2001Date of Patent: July 15, 2003Assignee: Eastman Kodak CompanyInventors: William T. Rochford, Robert P. Bourdelais, Mridula Nair
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Patent number: 6524777Abstract: The present invention is a method of forming a protective overcoat on a photographic element which element includes a processing-solution-permeable overcoat that becomes water-resistant in the final product without lamination or fusing. The method involves the incorporation of a small amount of a water-soluble organic solvent in the last step of the photographic process, i.e., during the washing step. This method allows the use of durable water-resistant protective overcoat materials with relatively high glass transition temperatures, that normally do not convert to impermeable films at low temperature, or without fusing.Type: GrantFiled: August 30, 2001Date of Patent: February 25, 2003Assignee: Eastman Kodak CompanyInventors: Thomas H. Whitesides, Amy E. Jasek
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Patent number: 6265140Abstract: This invention concerns a luminescent optical memory material and method of forming this material, including the encoding of information by a photographic process. The method involves the use of silver halide crystals of a defined size range, with the optional use of sensitizers, emulsion stabilizers, and other agents followed by the absorption of luminescent dyes on the developed silver particle to form a luminescent optical memory system. The method involves synthesis of a photographic emulsion with silver halide crystals of a defined size range, applying photographic emulsion to a substrate, exposing to light photochemical treatment and a process of transformation of the silver particles formed in the places exposed by light into luminescent particles. The method involves obtaining a multi-layer luminescent material for a three-dimensional optical memory devices.Type: GrantFiled: February 24, 1998Date of Patent: July 24, 2001Assignee: TriDStore IP, LLCInventors: Eugene B. Levich, Jacob N. Malkin, Mark A. Alperovich, Boris M. Shapiro
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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
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Patent number: 6208364Abstract: A process of forming a diffusion resistant lenticular element: a) contacting at least one dye-donor element having a support having thereon a dye layer having an image dye in a binder having an infrared-absorbing material associated therewith, the image dye comprising a nonionic dye capable of being converted to a cationic dye with an acid, with a lenticular element having a support with a lenticular array thereon on the opposite side thereof; b) imagewise-heating the dye-donor element with a laser; c) transferring a dye image to the support of the lenticular element; d) contacting the dye image with an acidic mordanting layer; and e) heating the lenticular element to cause the nonionic dye to convert to a cationic dye which is mordanted in the acidic mordanting layer.Type: GrantFiled: September 23, 1999Date of Patent: March 27, 2001Assignee: Eastman Kodak CompanyInventors: Lee W. Tutt, Christine M. Vargas, Steven Evans
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Patent number: 5871880Abstract: There is disclosed a silver halide color photographic light-sensitive material having at least one photographic constitutional layer coated on a support, wherein at least one of the photographic constitutional layers contains at least one reducing agent for color formation represented by formula (I), at least one coupler for forming a diffusive dye, and at least one mordant. The material is capable of reducing the amount of developer and to be replenished or discharged after processing, and of reducing the occurrence of stain after development during storage of the material. There is also disclosed an image-forming method using the material. ##STR1## wherein C.alpha. represents a carbon atom; Z represents a carbamoyl, acyl, alkoxycarbonyl, or aryloxycarbonyl group; and Q represents a group of atoms to form, together with C.alpha., an unsaturated ring.Type: GrantFiled: November 26, 1996Date of Patent: February 16, 1999Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshiyuki Makuta, Koki Nakamura
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Patent number: 5858624Abstract: Optical elements are prepared by the adhesive transfer of at least a low temperature curable (e.g., radiation or room temperature curable) adhesive layer and a conductive layer to a substrate, preferably a transparent, non-birefringent substrate such as ceramic, glass or polymeric film having, for example, a color filter array thereon. The curable adhesive is cured after the curable adhesive layer has been placed into contact with a final receptor surface (e.g., a color filter array on a liquid crystal panel).Type: GrantFiled: September 20, 1996Date of Patent: January 12, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: Hsin-hsin Chou, Michael F. Weber, Cyrus A. Morton, L. Peter Erickson
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Patent number: 5385795Abstract: A method for producing a color filter involves the steps of: (A) forming a photosensitive coating film on an electrically conductive layer formed on a surface of a substrate, and exposing the photosensitive coating film through a mask having patterns of at least three different degrees of light transmittances; (B) developing and removing a photosensitive coating film portion registering with one of the patterns of smallest and largest degrees of light transmittances for exposing the electrically conductive layer, and electrodepositing a colored coating on the exposed electrically conductive layer for forming a colored layer thereon; (C) repeating the step (B) for the respective patterns of different degrees of light transmittances in sequence of difference in transmittances for producing different colored layers, respectively; and (D) transcribing the colored layers onto another substrate.Type: GrantFiled: March 3, 1992Date of Patent: January 31, 1995Assignee: Nippon Oil Co., Ltd.Inventors: Hitoshi Yuasa, Yukio Yamasita, Haruyoshi Sato, Toru Nakamura, Yutaka Otsuki
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Patent number: 5194361Abstract: A diffusion transfer color photosensitive material is disclosed, comprising a support having thereon at least light-sensitive silver halides, binders and nondiffusible dye-providing compounds capable of releasing or forming a diffusible dye, corresponding to or counter-corresponding to the progress of conversion of the siliver halide into silver through reductive reaction, which contains as a trapping agent at least one compound represented by the following formula (I) to prevent the generation and/or the transfer of dyes in the white area without causing the lowering of image density:--(A).sub.p --(B).sub.q-- (I)[wherein A represents at least one vinyl monomer unit containing a quaternary ammonium ion associated therewith a counter ion at least 50 mol % of which is constituted by an anion represented by the following formula (II):R--X.sup.- (II)(wherein X.sup.- represents SO.sub.3.sup.- and/or COO.sup.Type: GrantFiled: May 16, 1991Date of Patent: March 16, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Toshiki Taguchi
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Patent number: 4942103Abstract: A solid state color image sensing device comprising a semiconductive support having a surface comprising an array of light sensing pixels and superimposed thereon in microregistration a color filter array having at least three sets of dyed filter elements is characterized in that at least one set of the filter elements is formed from a negative-working dyeable photoresist composition comprising, in admixture,(a) a poly(vinyl alcohol) binder,(b) a radiation-sensitive dichromate, and(c) a polymeric mordant comprising recurring units derived from a quaternized N-vinylimidazole.Color filter elements prepared from the dyeable photoresist composition have high resolution, excellent clarity and dye uptake, and low absorbance of blue light and thus are particularly useful in high quality high resolution solid state color imaging sensors having excellent thermal and light stability. A method of making the above-described device is disclosed.Type: GrantFiled: June 24, 1988Date of Patent: July 17, 1990Assignee: Eastman Kodak CompanyInventors: Raymond F. Reithel, Richard C. Sutton
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Patent number: 4568633Abstract: A process for obtaining highly stable color photographic images utilizes a silver halide photographic element comprising an essentially colorless, immobile compound which is capable of complexing with ferrous ions to form a dye. The complexing compound contains a complexing moiety which is represented by the formula: ##STR1## wherein m is zero or a positive integer 1 to 3, n and p are independently 0 or 1 and represents a single or double bond. Z is R.sup.1 --N.dbd., O.dbd., S.dbd., R.sup.1 --P.dbd., (R.sup.1).sub.2 P-- or (R.sup.1).sub.3 P.dbd., and when Z is (R.sup.1).sub.2 P--, n is 1, otherwise n is 0. R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are independently hydrogen, amino, hydroxy, mercapto, alkoxy, alkyl, aryl or a heterocyclic moiety. When R.sup.6 is so defined, p is 1 and is a single bond. If m is 0, R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, and R.sup.3 and R.sup.Type: GrantFiled: January 2, 1985Date of Patent: February 4, 1986Assignee: Eastman Kodak CompanyInventors: Frank V. Lovecchio, James A. Reczek, Robert C. Stewart
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Patent number: 4557998Abstract: Essentially colorless, hydrophilic ligand-releasing polymers are prepared from ethylenically unsaturated polymerizable monomers represented by the structure: ##STR1## wherein R' is hydrogen or lower alkyl, COUP is a photographic color coupling moiety, LINK is a coupling-off group which can be cleaved by an oxidized developer composition, and LIG is a ligand capable of complexing with metal ions, while joined to the polymer, to form a dye. These polymers also have recurring units which impart hydrophilicity to the polymer. These polymers form metal complex dyes in unexposed areas of photographic elements only, while the ligand is cleaved from the polymer in the exposed areas and washed out of the element.Type: GrantFiled: January 2, 1985Date of Patent: December 10, 1985Assignee: Eastman Kodak CompanyInventors: William N. Washburn, Kenneth R. Hollister
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Patent number: 4383023Abstract: A gelatino-silver halide film is exposed and then developed with a tanning developer bearing a positively or negatively charged substituent, e.g., a quaternary amine-substituted hydroquinone, to produce a charged matrix in the gelatin. To enhance the image the film is then processed to mordant an oppositely charged species, e.g., an anionic dye, to the charged matrix.Type: GrantFiled: October 1, 1981Date of Patent: May 10, 1983Assignee: E. I. Du Pont de Nemours and CompanyInventor: Frank L. Schadt, III
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Patent number: 4379838Abstract: Addition polymers containing at least 10 mole % of recurring structural units of formula I are useful mordants for acid dyes which preferably contain at least two sulfo groups. The polymers can be used together with the dyes in dyed layers of photographic recording materials, such as in antihalo or filter layers. ##STR1## in which Q represents N or P;R.sup.1, R.sup.2, R.sup.3 represent alkyl or carbocyclic radicals or two of R.sup.1, R.sup.2 and R.sup.3 complete a 5- or 6-membered heterocyclic ring,R.sup.4 represents H or alkyl,X.sup..crclbar. represents an anion.Type: GrantFiled: October 5, 1981Date of Patent: April 12, 1983Assignee: Agfa-Gevaert AktiengesellschaftInventors: Gunter Helling, Hans hlschlager, Wolfgang Himmelmann, Manfred Beck
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Patent number: 4353972Abstract: As mordant for mordanting diffusing anionic dyes in image receiving layers of photographic dye diffusion materials the invention makes use of addition polymers having at least 10 mole % of recurring structural units of formula I ##STR1## in which Q represents nitrogen or phosphorus;R.sup.1, R.sup.2, R.sup.3 each represents a carbocyclic or alkyl group or two of these substituents complete a 5- or 6-membered heterocyclic ringR.sup.4 represents hydrogen or alkyl,X.crclbar. is an anion.Type: GrantFiled: October 14, 1980Date of Patent: October 12, 1982Assignee: AGFA-Gevaert AGInventors: Gunter Helling, Kaspar Wingender, Wolfgang Himmelmann, Manfred Beck
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Patent number: 4299904Abstract: A method of enhancing photographic images of low optical density is disclosed which includes use of a luminescent system, the components of which system include, at least, photoluminescent material and a source of photons for exciting the same to luminescence. A photoluminescent replica of the low optical density photographic image is produced which replica is exposed to photons required for luminescence of the photoluminescent image replica which luminescence is recorded, or photographed, for an amount of time necessary to achieve enhancement of the photographic film image. The image enhancement method may be used for the enhancement of photographic images produced by photographic processes including, for example, those which involve the use of different radiant energy sensitive material such as silver halide as used in `conventional` photography, photoconductive material as used in electrophotography, organic compounds as used in diazo photographic processes, and the like.Type: GrantFiled: November 28, 1978Date of Patent: November 10, 1981Assignee: SRI InternationalInventors: Richard R. Pettijohn, Charles Leung, Ronald G. Manning, Zoila Reyes, Malcolm Thackray
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Patent number: 4256826Abstract: A bleach-fix sheet for use in color photographic processes comprises a support having thereon a bleaching agent, a fixing agent and a hardened hydrophilic binder. In a preferred embodiment, the bleach-fix sheet is useful to bleach and fix a retained image in a color image diffusion transfer unit.Type: GrantFiled: August 14, 1978Date of Patent: March 17, 1981Assignee: Eastman Kodak CompanyInventors: Gerhard Popp, Patrick H. Saturno, Keith H. Stephen
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Patent number: 4247615Abstract: There is disclosed a composition and element, comprising a diazo resin and a mordant for anionic dyes that is compatible with the resin. The element of the invention is suitable for dye immersion and dye transfer to a mordanted receiver.Type: GrantFiled: March 6, 1980Date of Patent: January 27, 1981Assignee: Eastman Kodak CompanyInventors: Hugh G. McGuckin, Hyman L. Cohen
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Patent number: 4235957Abstract: In a dry physical development photothermographic element for a dry thermal silver-dye bleach process wherein the element comprises a silver halide complexing concentration of a silver halide complexing agent improvements are provided when the complexing agent is an organic ammonium chloride, bromide or iodide. After imagewise exposure of the element, a dye image can be produced by uniformly heating the element. Improvements are also produced by providing a dry activator element for producing a dye image in a separate photographic element by means of a dry physical development thermal dye-bleach process, wherein the activator element comprises a support having thereon a layer comprising a synthetic hydrophobic polymeric binder, a silver halide complexing concentration of a silver halide complexing agent, as described, a bleachable dye and a thermal solvent.Type: GrantFiled: January 25, 1979Date of Patent: November 25, 1980Assignee: Eastman Kodak CompanyInventors: Carl F. Kohrt, Roland G. Willis
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Patent number: 4236098Abstract: A color imaging device is comprised of means for sensing radiation comprising a planar array of charge-handling semiconductor photosensors, preferably at least one of the photosensors having a radiation sensing area with at least one dimension less than about 100 microns, and superimposed thereon, filter means for controlling access of radiation to the sensing means. The filter means is in micro-registration with the array of photosensors and comprises a transparent mordant layer with a plurality of radiation intercepting means defining a planar array of filter elements. The filter area of each intercepting means contains at least one mordantable dye which absorbs radiation in at least one portion of the spectrum and transmits radiation in at least one other portion of the spectrum. The color imaging device comprises an interlaid pattern having at least two sets of intercepting means, the first set having a different radiation absorption and transmission characteristic from that of the second set.Type: GrantFiled: August 20, 1979Date of Patent: November 25, 1980Assignee: Eastman Kodak CompanyInventors: Jerry R. Horak, Harold F. Langworthy, Frederick J. Rauner, Robert C. Gross
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Patent number: 4220700Abstract: There is disclosed a composition and element, comprising a diazo resin and a mordant for anionic dyes that is compatible with the resin. The element of the invention is suitable for dye immersion and dye transfer to a mordanted receiver.Type: GrantFiled: February 3, 1978Date of Patent: September 2, 1980Assignee: Eastman Kodak CompanyInventors: Hugh G. McGuckin, Hyman L. Cohen
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Patent number: 4204866Abstract: A color imaging device is comprised of means for sensing radiation comprising a planar array of charge-handling semiconductor photosensors, preferably at least one of the photosensors having a radiation sensing area with at least one dimension less than about 100 microns, and superimposed thereon, filter means for controlling access of radiation to the sensing means. The filter means is in micro-registration with the array of photosensors and comprises a transparent mordant layer with a plurality of radiation intercepting means defining a planar array of filter elements. The filter area of each intercepting means contains at least one mordantable dye which absorbs radiation in at least one portion of the spectrum and transmits radiation in at least one other portion of the spectrum. The color imaging device comprises an interlaid pattern having at least two sets of intercepting means, the first set having a different radiation absorption and transmission characteristic from that of the second set.Type: GrantFiled: January 9, 1978Date of Patent: May 27, 1980Assignee: Eastman Kodak CompanyInventors: Jerry R. Horak, Harold F. Langworthy, Frederick J. Rauner, Robert C. Gross