Mordanting Patents (Class 430/371)
  • Patent number: 7063925
    Abstract: 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: Grant
    Filed: June 20, 2003
    Date of Patent: June 20, 2006
    Assignee: Eastman Kodak Company
    Inventors: William T. Rochford, Robert P. Bourdelais, Mridula Nair
  • Patent number: 6960426
    Abstract: 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: Grant
    Filed: January 15, 2002
    Date of Patent: November 1, 2005
    Assignee: D Data Inc.
    Inventors: Eugene B. Levich, Jacob N. Malkin, Mark A. Alperovich, Boris M. Shapiro
  • Patent number: 6593042
    Abstract: 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: Grant
    Filed: December 21, 2001
    Date of Patent: July 15, 2003
    Assignee: Eastman Kodak Company
    Inventors: William T. Rochford, Robert P. Bourdelais, Mridula Nair
  • Patent number: 6524777
    Abstract: 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: Grant
    Filed: August 30, 2001
    Date of Patent: February 25, 2003
    Assignee: Eastman Kodak Company
    Inventors: Thomas H. Whitesides, Amy E. Jasek
  • Patent number: 6265140
    Abstract: 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: Grant
    Filed: February 24, 1998
    Date of Patent: July 24, 2001
    Assignee: TriDStore IP, LLC
    Inventors: Eugene B. Levich, Jacob N. Malkin, Mark A. Alperovich, Boris M. Shapiro
  • Patent number: 6265118
    Abstract: 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: Grant
    Filed: January 28, 2000
    Date of Patent: July 24, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Keiichi Taguchi
  • Patent number: 6208364
    Abstract: 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: Grant
    Filed: September 23, 1999
    Date of Patent: March 27, 2001
    Assignee: Eastman Kodak Company
    Inventors: Lee W. Tutt, Christine M. Vargas, Steven Evans
  • Patent number: 5871880
    Abstract: 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: Grant
    Filed: November 26, 1996
    Date of Patent: February 16, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshiyuki Makuta, Koki Nakamura
  • Patent number: 5858624
    Abstract: 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: Grant
    Filed: September 20, 1996
    Date of Patent: January 12, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Hsin-hsin Chou, Michael F. Weber, Cyrus A. Morton, L. Peter Erickson
  • Patent number: 5385795
    Abstract: 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: Grant
    Filed: March 3, 1992
    Date of Patent: January 31, 1995
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Hitoshi Yuasa, Yukio Yamasita, Haruyoshi Sato, Toru Nakamura, Yutaka Otsuki
  • Patent number: 5194361
    Abstract: 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: Grant
    Filed: May 16, 1991
    Date of Patent: March 16, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Toshiki Taguchi
  • Patent number: 4942103
    Abstract: 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: Grant
    Filed: June 24, 1988
    Date of Patent: July 17, 1990
    Assignee: Eastman Kodak Company
    Inventors: Raymond F. Reithel, Richard C. Sutton
  • Patent number: 4568633
    Abstract: 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: Grant
    Filed: January 2, 1985
    Date of Patent: February 4, 1986
    Assignee: Eastman Kodak Company
    Inventors: Frank V. Lovecchio, James A. Reczek, Robert C. Stewart
  • Patent number: 4557998
    Abstract: 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: Grant
    Filed: January 2, 1985
    Date of Patent: December 10, 1985
    Assignee: Eastman Kodak Company
    Inventors: William N. Washburn, Kenneth R. Hollister
  • Patent number: 4383023
    Abstract: 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: Grant
    Filed: October 1, 1981
    Date of Patent: May 10, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Frank L. Schadt, III
  • Patent number: 4379838
    Abstract: 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: Grant
    Filed: October 5, 1981
    Date of Patent: April 12, 1983
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Gunter Helling, Hans hlschlager, Wolfgang Himmelmann, Manfred Beck
  • Patent number: 4353972
    Abstract: 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: Grant
    Filed: October 14, 1980
    Date of Patent: October 12, 1982
    Assignee: AGFA-Gevaert AG
    Inventors: Gunter Helling, Kaspar Wingender, Wolfgang Himmelmann, Manfred Beck
  • Patent number: 4299904
    Abstract: 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: Grant
    Filed: November 28, 1978
    Date of Patent: November 10, 1981
    Assignee: SRI International
    Inventors: Richard R. Pettijohn, Charles Leung, Ronald G. Manning, Zoila Reyes, Malcolm Thackray
  • Patent number: 4256826
    Abstract: 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: Grant
    Filed: August 14, 1978
    Date of Patent: March 17, 1981
    Assignee: Eastman Kodak Company
    Inventors: Gerhard Popp, Patrick H. Saturno, Keith H. Stephen
  • Patent number: 4247615
    Abstract: 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: Grant
    Filed: March 6, 1980
    Date of Patent: January 27, 1981
    Assignee: Eastman Kodak Company
    Inventors: Hugh G. McGuckin, Hyman L. Cohen
  • Patent number: 4235957
    Abstract: 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: Grant
    Filed: January 25, 1979
    Date of Patent: November 25, 1980
    Assignee: Eastman Kodak Company
    Inventors: Carl F. Kohrt, Roland G. Willis
  • Patent number: 4236098
    Abstract: 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: Grant
    Filed: August 20, 1979
    Date of Patent: November 25, 1980
    Assignee: Eastman Kodak Company
    Inventors: Jerry R. Horak, Harold F. Langworthy, Frederick J. Rauner, Robert C. Gross
  • Patent number: 4220700
    Abstract: 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: Grant
    Filed: February 3, 1978
    Date of Patent: September 2, 1980
    Assignee: Eastman Kodak Company
    Inventors: Hugh G. McGuckin, Hyman L. Cohen
  • Patent number: 4204866
    Abstract: 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: Grant
    Filed: January 9, 1978
    Date of Patent: May 27, 1980
    Assignee: Eastman Kodak Company
    Inventors: Jerry R. Horak, Harold F. Langworthy, Frederick J. Rauner, Robert C. Gross