Phenol Or Naphthol Coupler Patents (Class 430/552)
  • Patent number: 6531269
    Abstract: A color photographic silver halide material, which has a support which comprises at least one blue-sensitive, yellow-coupling silver halide emulsion layer nearest the light source and at least one green-sensitive, magenta-coupling silver halide emulsion layer and at least one red-sensitive, cyan-coupling silver halide emulsion layer which are further from the light source than is the at least one blue-sensitive layer, and which contains at least one cyan masking coupler which has its maximum absorption above 650 mn, the red-sensitive layers have their maximum sensitivity at 620±20 nm and the absorption of the masking coupler at the maximum sensitivity of the red-sensitive layers is at most 70% of its absorption at 690 mn, is distinguished by improved color reproduction and color saturation in the magenta layer without loss of sensitivity.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: March 11, 2003
    Assignee: Agfa-Gevaert N.V.
    Inventors: Ralf Wirowski, Jan Haller, Stefan Herrmann, Jürgen Jung
  • Patent number: 6531270
    Abstract: This invention involves the use of ionic liquids as coupler solvents in a color or monochrome photothermographic system. The presence of an ionic liquid can increase the amount of density or dye formed. The ionic liquid may be combined with other coupler solvents.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: March 11, 2003
    Assignee: Eastman Kodak Company
    Inventors: Leif P. Olson, James H. Reynolds
  • Patent number: 6531273
    Abstract: This invention involves dispersions comprising ionic liquids and a non-ionic surfactant, optionally further comprising a photographically useful compound such as a dye-forming coupler. Such dispersions form coatings that are relatively free of physical defects, and show reduced problems such as crystallization of components like the couplers or ion pairs.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: March 11, 2003
    Assignee: Eastman Kodak Company
    Inventors: Leif P. Olson, John W. Boettcher, James H. Reynolds
  • Patent number: 6521395
    Abstract: This invention relates to a silver halide photographic element containing a phenolic infrared dye-forming coupler bearing in the 2-position either a benzamido group substituted with a sulfonyl group or a heterocyclic carbonamido group, and bearing in the 5-position a non-carbonamido group, which element is useful for incorporating and recovering metadata, such as sound data, into a photographic image and is specifically concerned with the incorporation of non-visually perceptible sound information into a photograph.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: February 18, 2003
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Gary M. Russo
  • Patent number: 6518000
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a coupler that forms a dye for which the &lgr;max using spin-coating is shifted towards the infrared region of the spectrum by at least 30 nm, when compared to the &lgr;max of the same dye in solution form, to a value of at least 700 nm. Such an element is useful for recording metadata with an image.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: February 11, 2003
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Gary M. Russo, Mathilde R. Triguel
  • Publication number: 20020187443
    Abstract: A photographic element is disclosed, comprising a yellow dye forming coupler, a magenta dye forming coupler and a cyan dye forming coupler, wherein spectral reflection absorption characteristics of a yellow dye, a magenta dye and a cyan dye which are formed of the yellow dye forming coupler, the magenta dye forming coupler and the cyan dye forming coupler, respectively, meet the following requirements:
    Type: Application
    Filed: January 31, 2002
    Publication date: December 12, 2002
    Inventor: Takeshi Hakii
  • Patent number: 6479225
    Abstract: A silver halide photographic element for forming a sepia image comprising a support and an image forming layer which contains a cyan dye forming coupler, a magenta dye forming coupler and a yellow dye forming coupler, wherein the support has CIELAB a* and b* values within the following ranges at L*>90:0<b*<6.0, 0<a*<1.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: November 12, 2002
    Assignee: Eastman Kodak Company
    Inventors: David J. Valvo, Kurt M. Schroeder, Michael R. Roberts
  • Publication number: 20020136993
    Abstract: A color photographic silver halide material containing in at least one red-sensitive layer a cyan coupler having formula (1) 1
    Type: Application
    Filed: January 8, 2002
    Publication date: September 26, 2002
    Inventors: Gunter Helling, Ralf Weimann
  • Patent number: 6444417
    Abstract: The invention relates to a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith (A) a cyan dye-forming coupler of formula (I) and (B) a bisphenol derivative compound of formula (II): wherein the substituents are as described in the specification.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: September 3, 2002
    Assignee: Eastman Kodak Company
    Inventors: David Clarke, Llewellyn J. Leyshon, Katie E. Smith
  • Patent number: 6436623
    Abstract: A colour photographic silver halide material having a support and at least one photo-sensitive silver halide emulsion layer which is associated with a cyan coupler of the formula (I): in which R1, R2, R3, Z1, Y1 and n have the meaning stated in the description, is distinguished by elevated dye stability of the dye produced from the coupler by chromogenic processing.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: August 20, 2002
    Assignee: Agfa-Gevaert
    Inventors: Jörg Hagemann, Jan Haller, Günter Helling
  • Patent number: 6426178
    Abstract: The invention relates to a photographic element for forming neutral images comprising a cyan dye-forming coupler, a magenta dye-forming coupler of formula wherein Ra and Rb represents H or a substituent; X is hydrogen or a coupling-off group; Za, Zb, and Zc are a substituted methine group, ═N—, ═C—, or —NH—; and yellow dye-forming coupler of formula,  wherein R5 is an alkoxy group with more than one carbon atom, aryloxy, anilino, arylthio, alkylthio, or dialkylamino groups linked to the anilide phenyl ring by oxygen, sulfur or nitrogen; R6 is selected from hydrogen, halogen, alkoxycarbonyl(—CO2R), carbamoyl(—CONRR′), carbonamido(—NRCOR′), sulfonate(—OSO2R), sulfamoyl (—SO2NRR′), sulfonamido(—NRSO2R′), or sulfonyl(—SO2R); R and R′ may be hydrogen, alkyl or aryl groups; q is 1 to 4; R7 is alkyl, cyclic, or multicyclic alky, aryl, heterocyclic, heteroaromatic, and
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: July 30, 2002
    Assignee: Eastman Kodak Company
    Inventors: Michael R. Roberts, Kurt M. Schroeder, Frank D. Coms
  • Publication number: 20020098449
    Abstract: A photothermographic material comprising at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing compound represented by the following formula (1) or (2), (d) a binder and (e) a coupler compound on the same side of a support: 1
    Type: Application
    Filed: March 16, 2001
    Publication date: July 25, 2002
    Inventors: Toyohisa Oya, Kazunobu Katoh, Shigeo Hirano
  • Publication number: 20020076664
    Abstract: Pyrrolotriazole compounds of the formula (I) and silver halide color photographic light-sensitive materials containing the compound as a cyan coupler, are disclosed: 1
    Type: Application
    Filed: September 27, 2001
    Publication date: June 20, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Takeshi Nakamine, Yasuaki Deguchi
  • Publication number: 20020064735
    Abstract: The invention relates to a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith (A) a cyan dye-forming coupler of formula (I) and (B) a bisphenol derivative compound of formula (II): 1
    Type: Application
    Filed: August 21, 2001
    Publication date: May 30, 2002
    Applicant: Eastman Kodak Company
    Inventors: David Clarke, Llewellyn J. Leyshon, Katie E. Smith
  • Publication number: 20020061480
    Abstract: The invention provides a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, UV absorber and
    Type: Application
    Filed: August 21, 2001
    Publication date: May 23, 2002
    Applicant: Eastman Kodak Company
    Inventor: Danuta Gibson
  • Publication number: 20020058212
    Abstract: The invention relates to a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith one or more dye-forming couplers and a stabilizer compound of formula (I): 1
    Type: Application
    Filed: August 21, 2001
    Publication date: May 16, 2002
    Applicant: Eastman Kodak Company
    Inventors: David Clarke, Llewellyn J. Leyshon, Christopher P. Moore
  • Patent number: 6387606
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan “NB coupler” having the formula (I): wherein: the term “NB coupler” represents a coupler of formula (I) that forms a dye for which the left bandwidth (LBW) using spin-coating is at least 5 nm less than that of the same dye in solution form; Y is H or a coupling-off group; each Z″ and Z* is an independently selected substituent group where n is 0 to 4 and p is 0 to 2; W2 represents the atoms necessary to complete a heterocyclic ring group; and V is a sulfone or sulfoxide containing group; provided that the combined sum of the aliphatic carbon atoms in V, all Z″ and all Z* is at least 8. The element exhibits improved cyan dye hue.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: May 14, 2002
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Frank D. Coms, Gary M. Russo
  • Patent number: 6383728
    Abstract: A color photographic silver halide material having a support and at least one photosensitive silver halide emulsion layer which is associated with a cyan coupler of the formula (I): in which R1, R2, R3, Z1, Y1 and n have the meaning stated in the description, is distinguished by elevated dye stability of the dye produced from the coupler by chromogenic processing.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: May 7, 2002
    Assignee: Agfa-Gevaert
    Inventors: Jörg Hagemann, Jan Haller, Günter Helling
  • Publication number: 20020051945
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan “NB coupler” having the formula (I): 1
    Type: Application
    Filed: October 18, 2001
    Publication date: May 2, 2002
    Inventors: William J. Begley, Frank D. Coms, Gary M. Russo
  • Patent number: 6379879
    Abstract: A color photographic recording material having at least one spectrally sensitized silver halide emulsion layer, characterized in that said silver halide emulsion layer contains an oil former having a pKa value of less than 18 and a DIR coupler and the material contains at least one color coupler, wherein the color coupler and/or the DIR coupler have specific structures, is distinguished by an increased interimage effect in comparison with the prior art without sensitivity being reduced.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: April 30, 2002
    Assignee: Agfa-Gevaert
    Inventors: Jörg Hagemann, Günter Helling, Heinz Wiesen, Ralf Wirowski, Ralf Büscher
  • Publication number: 20020018971
    Abstract: A colour photographic recording material having at least one spectrally sensitised silver halide emulsion layer, characterised in that said silver halide emulsion layer contains an oil former having a pKa value of less than 18 and a DIR coupler and the material contains at least one colour coupler, wherein the colour coupler and/or the DIR coupler have specific structures, is distinguished by an increased interimage effect in comparison with the prior art without sensitivity being reduced.
    Type: Application
    Filed: February 26, 2001
    Publication date: February 14, 2002
    Inventors: Jorg Hagemann, Gunter Helling, Heinz Wiesen, Ralf Wirowski, Ralf Buscher
  • Publication number: 20010014432
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan “NB coupler” having the formula (I): 1
    Type: Application
    Filed: February 12, 2001
    Publication date: August 16, 2001
    Inventors: William J. Begley, Frank D. Coms, Gary M. Russo
  • Patent number: 6261755
    Abstract: The invention provides a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith: (A) a phenolic cyan dye-forming narrow bandwidth “NB coupler”; (B) a phenolic cyan dye-forming coupler of formula (II): wherein: R3 is an unsubstituted or substituted alkyl or aryl group or a 5-10 membered heterocyclic ring which contains one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; R4 is an unsubstituted or substituted alkyl group; R5 is hydrogen, halogen or an unsubstituted or substituted alkyl or aryl group or a 5-10 membered heterocyclic ring which contains one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; and Z is a hydrogen atom or a group which can be split off by the reaction of the coupler with an oxidized color-developing agent; and (C) a stabilizer of formula (III) wherein: eac
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: July 17, 2001
    Assignee: Eastman Kodak Company
    Inventors: Danuta Gibson, James S. Honan, Thomas A. Rosiek
  • Patent number: 6251575
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a “NB coupler” having the formula (I): wherein: the term “NB coupler” represents a coupler of formula (I) that forms a dye for which the left bandwidth (LBW) using spin-coating is at least 5 nm less than that of the same dye in solution form; Y is H or a coupling-off group; each Z* is an independently selected substituent group where p is 0 to 2; V is a substituent group containing a sulfone group; R4 is represented by the formula wherein each of R5, R6 and R7 is hydrogen or an independently selected substituent with no more than one being hydrogen; provided that two or more of R5, R6 and R7 may join to form a ring or rings and provided that the combined sum of the aliphatic carbon atoms in V, R4 and all Z* is at least 8, and provided further that R4 is not a fully fluorinated alkyl group. Such elements provide improved hue.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: June 26, 2001
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Gary M. Russo, Denis T. Curt
  • Patent number: 6221571
    Abstract: A silver halide light sensitive photographic element is disclosed comprising a support bearing at least one cyan image forming hydrophilic colloid layer comprising cyan image dye forming coupler of Formula I and benzoic acid ester or diester high boiling solvent of Formula II. wherein Ra is an alkyl group, Rb is a ballast group, and X is hydrogen or a coulping-off group. wherein: each m is independently 0, 1, 2 or 3; each R1 is an individually selected alkyl group with up to four carbon atoms; n is 1 to 7; each R2, R3, R4 and R5 may be the same or different and is individually selected from hydrogen or an alkyl group with up to four carbon atoms; p is 0 to 3; q is 1 to 7; r is 0 or 1; and the log P of the solvent is at least 4.0. The photographic elements of the invention provide high cyan coupler reactivity and form deep cyan dye hues upon photographic processing without degrading cyan dye dark stability.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: April 24, 2001
    Assignee: Eastman Kodak Company
    Inventors: Paul L. Zengerle, Gary N. Barber
  • Patent number: 6207363
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan “NB coupler” having the formula (I): wherein: the term “NB coupler” represents a coupler of formula (I) that forms a dye for which the left bandwidth (LBW) using spin-coating is at least 5 nm less than that of the same dye in solution form; Y is H or a coupling-off group; each Z″ and Z* is an independently selected substituent group where n is 1 to 4 and p is 0 to 2; W2 represents the atoms necessary to complete a carbocyclic or heterocyclic ring group; and V is a sulfone or sulfoxide containing group; provided that the combined sum of the aliphatic carbon atoms in V, all Z″ and all Z* is at least 8; provided further that there is one and only one Z″ substituent ortho to the carbonamido group linking the W2 ring to the rest of the coupler; and provided still further that when W2 forms a carbocyclic aromatic ring, at
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: March 27, 2001
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Frank D. Coms, Gary M. Russo
  • Patent number: 6197489
    Abstract: Disclosed is a color photographic element comprising at least four imaging layers including: a first light sensitive silver halide imaging layer having associated therewith a cyan image dye-forming coupler; a second light sensitive silver halide imaging layer having associated therewith a magenta image dye-forming coupler; a third light sensitive silver halide imaging layer having associated therewith a yellow image dye-forming coupler; and a fourth light sensitive silver halide imaging layer having associated therewith a fourth image dye-forming coupler for which the normalized spectral transmission density distribution curve of the dye formed by the fourth image dye-forming coupler upon reaction with color developer has a CIELAB hue angle, hab, from 225 to 310°. The element provides improved color gamut.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: March 6, 2001
    Assignee: Eastman Kodak Company
    Inventors: James L. Edwards, William J. Begley
  • Patent number: 6197485
    Abstract: A photographic assemblage comprising a silver halide photographic light-sensitive element comprising at least one sulfur and gold sensitized silver halide emulsion layer, said element comprising chlorinated s-triazine hardeners and photographically useful chemical compounds containing cyano groups, and a closed vessel in which the element is closed and stored at a constant relative humidity, is protected against HCN gas, which may evolve from photographic addenda included in the light-sensitive element to cause fog in the silver halide emulsion layers, by the addition of a palladium compound, in a silver halide emulsion layer and/or an adjacent layer thereto, as scavenger for HCN gas released from the element.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: March 6, 2001
    Assignee: Minnesota Mining & Manufacturing Company
    Inventors: Luigi Cellone, Brunella Fornasari, Giovanni Giusto
  • Patent number: 6197491
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a “NB coupler” having the formula (I): wherein: the term “NB coupler” represents a coupler of formula (I) that forms a dye for which the left bandwidth (LBW) using spin-coating is at least 5 nm less than that of the same dye in solution form; Y is H or a coupling-off group; each Z* is an independently selected substituent group where p is 0 to 2; V is a substituent group containing a sulfonamido group; R4 is hydrogen or a group bonded to the carbonamido group by an aliphatic carbon atom; provided that the combined sum of the aliphatic carbon atoms in V, R4 and all Z* is at least 8. The element provides a dye of improved hue.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: March 6, 2001
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Gary M. Russo, Denis T. Curt
  • Patent number: 6197492
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan “NB coupler” having the formula (I): wherein: the term “NB coupler” represents a coupler of formula (I) that forms a dye for which the left bandwidth (LBW) using spin-coating is at least 5nm less than that of the same dye in solution form; Y is H or a coupling-off group; each Z″ and Z* is an independently selected substituent group where n is 0 to 4 and p is 0 to 2; W2 represents the atoms necessary to complete a heterocyclic ring group; and V is a sulfone or sulfoxide containing group; provided that the combined sum of the aliphatic carbon atoms in V, all Z″ and all Z* is at least 8. The element exhibits improved cyan dye hue.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: March 6, 2001
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Frank D. Coms, Gary M. Russo
  • Patent number: 6197490
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a “NB coupler” having the formula (I): wherein the term “NB coupler” represents a coupler of formula (I) that forms a dye for which the left bandwidth (LBW) using spin-coating is at least 5 nm less than that of the same dye in solution form; Y is H or a coupling-off group; each Z″ and Z* is an independently selected substituent group where n is 0 to 5 and p is 0 to 2; W2 represents the atoms necessary to complete a carbocyclic or heterocyclic ring group; and V is a substituent group containing a sulfonamido group; provided that the combined sum of the aliphatic carbon atoms in V, all Z″ and all Z* is at least 8. The element provides a dye of improved hue.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: March 6, 2001
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Gary M. Russo, Denis T. Curt
  • Patent number: 6194132
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan coupler having the formula: wherein: V is a sulfone or sulfoxide containing group; Y is H or a coupling-off group; W2 represents the atoms necessary to complete a carbocyclic or heterocyclic ring group; each Z″, Z* and Z# is an independently selected substituent group where n and r are independently 0 to 4 and p is 0 to 2; and X is a halogen atom, and s is 1 to 5; provided that the combined sum of the aliphatic carbon atoms in V, all Z″, all Z#, and all Z* is at least 8. The element exhibits improved cyan dye stability.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: February 27, 2001
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Frank D. Coms, Gary M. Russo
  • Patent number: 6194131
    Abstract: A silver halide color photographic lightsensitive material comprising a compound represented by general formula (I): COUP—A—E—B  (I) wherein COUP represents a coupler residue capable of coupling with a developing agent in an oxidized form, E represents an electrophilic moiety, A represents a single bond or a divalent connecting group which can release B while forming a 4 to 8-membered ring through an intramolecular nucleophilic substitution reaction between the electrophilic moiety E and a nitrogen atom of a coupling product that is obtained by the reaction of COUP with the developing agent in an oxidized form, wherein the nitrogen atom originates from the developing agent and directly binds to a coupling position of COUP, provided that A may be bound to COUP at the coupling position or position other than the coupling position of COUP, and B represents a photographically inert group.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: February 27, 2001
    Assignee: Fuji Photo film Co., Ltd.
    Inventors: Takayuki Ito, Hidetoshi Kobayashi
  • Patent number: 6190850
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan “NB coupler” having the formula (I): wherein: the term “NB coupler” represents a coupler of formula (I) that forms a dye for which the left bandwidth (LBW) using spin-coating is at least 5 nm less than that of the same dye in solution form; Y is H or a coupling-off group; each Z″ and Z* is an independently selected substituent group where n is 1 to 4 and p is 0 to 2; W2 represents the atoms necessary to complete a carbocyclic or heterocyclic ring group; and V is a sulfone or sulfoxide containing group; provided that the combined sum of the aliphatic carbon atoms in V, all Z″ and all Z* is at least 8; and the sum of the aliphatic carbon atoms in all Z″ substituents combined is at least 6; provided further that when W2 forms a carbocyclic aromatic ring, at least one Z″ is selected from the group consisting of alk
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: February 20, 2001
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Frank D. Coms, Gary M. Russo
  • Patent number: 6190851
    Abstract: Disclosed is a photographic element complising a light sensitive silver halide emulsion layer having associated therewith a cyan dye forming coupler having Formula (I): wherein R1 and R3 independently represent hydrogen or an alkyl group; R2 represents a carbocyclic or heterocyclic aromatic group; n represents 1, 2, or 3; each X is an independently selected substituent where at least one X located at a position of the phenyl ring meta or para to the sulfonyl group and is either an alkoxy group having a branched carbon or an aiyloxy group; and Z represents hydrogen or a group that can be split off by the reaction of the coupler with an oxidized color-developing compound; provided that the substituents of the compound of formula (I) are selected so that the compound has a melting point of 160° C. or less. The element provides improved phase stability during manufacturing while exhibiting satisfactory hue and dye light stability.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: February 20, 2001
    Assignee: Eastman Kodak Company
    Inventors: John W. Harder, James S. Honan, Albert J. Mura
  • Patent number: 6190852
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan dye-forming coupler represented by Formula (I): wherein: each R1 and R3 is an independently selected substituent, m is 0 to 5, and p is 0 to 2; X is hydrogen or a coupling-off group; W and W2 represent the atoms necessary to complete rings; and R2 is an alkyl or aryl group. The element provides desirable hue properties and ease of synthesis.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: February 20, 2001
    Assignee: Eastman Kodak Company
    Inventors: Albert J. Mura, Raymond P. Scaringe, John W. Harder
  • Patent number: 6180331
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan “NB coupler” having the formula (I): wherein: the term “NB coupler” represents a coupler of formula (I) that forms a dye for which the left bandwidth (LBW) using spin-coating is at least 5 nm less than that of the same dye in solution form; Y is H or a coupling-off group; each Z″ and Z* is an independently selected substituent group where n is 1 to 4 and p is 0 to 2; W2 represents the atoms necessary to complete a carbocyclic ring group; and V is a substituent containing a heterocyclic sulfone or sulfoxide group; provided that the combined sum of the aliphatic carbon atoms in V, all Z″ and all Z* is at least 8. The element exhibits improved cyan dye hue.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: January 30, 2001
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Frank D. Coms, Gary M. Russo
  • Patent number: 6156489
    Abstract: A silver halide photographic light sensitive material comprising a transparent support and provided thereon a light sensitive layer containing a yellow coupler, a magenta coupler and a cyan coupler to form a monochromatic image upon color development after exposure, wherein a relative coupling rate of the magenta coupler with an oxidation product of a color developing agent is higher than that of the yellow or cyan coupler.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: December 5, 2000
    Assignee: Konica Corporation
    Inventors: Toshihiko Iwasaki, Masaru Iwagaki
  • Patent number: 6132947
    Abstract: Disclosed is a photographic element comprising at least one light sensitive silver halide emulsion layer having associated therewith: (A) a phenolic cyan dye-forming "NB coupler";(B) a high boiling solvent having Formula (II):R.sup.3 OO--C--(--G--)--C--OO--R.sup.4 (II)wherein:R.sup.3 and R.sup.4 represent independently selected alkyl or aryl groups; andG represents an alkyl (including cycloalkyl and aralkyl) containing linking group; and(C) a stabilizer having Formula (III): ##STR1## wherein each Y is an independently selected substituent and m is 0 to 4; andeach T is an independently selected substituent and p is 0 to 4.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: October 17, 2000
    Assignee: Eastman Kodak Company
    Inventors: James S. Honan, Rakesh Jain, John W. Harder, William J. Begley
  • Patent number: 6127107
    Abstract: A photographic recording material for use in redox amplification comprises a support having thereon a plurality of emulsion layers, each emulsion layer containing a color-forming coupler, and wherein the activity of the couplers is from 45 to 70% as measured by the citrazinic acid method. These materials may be developed by a redox development step which may be followed by a bleach-fix step without any intervening step. Staining is eliminated with the use of these photographic materials.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: October 3, 2000
    Assignee: Eastman Kodak Company
    Inventors: Adrian J. Codling, John R. Fyson
  • Patent number: 6120981
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a dye-foaming coupler compound and a sulfonamido compound (a) bearing on the sulfur atom of the sulfonamido group an alkyl group and (b) bearing on the nitrogen atom of the sulfonamido group both a hydrogen atom that exhibits a pKa value of less than 9 and a second substituent that is either (1) an aryl group containing one or more electron withdrawing substituents for which the sum of the Hammett's values (.SIGMA..sigma..sub.p) is greater than 0.5, or (2) a heteroaryl group.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: September 19, 2000
    Assignee: Eastman Kodak Company
    Inventors: David Hoke, Jared B. Mooberry, Kathleen M. Yahn, Kevin P. Dockery, David T. Southby
  • Patent number: 6114103
    Abstract: This invention relates to a photographic element comprising a support and at least two silver halide emulsion layers wherein at least one emulsion layer contains an electron transfer agent releasing compound represented by the formula:CAR--(L).sub.n --ETAwherein:CAR is a carrier moiety which is capable of releasing --(L)n--ETA on reaction with oxidized developing agent;L is a divalent linking group, n is 0, 1 or 2; andETA is a releasable 1-aryl-3-pyrazolidinone electron transfer agent having a calculated log partition coefficient (c log P) greater than or equal to 2.40 bonded to L or CAR through either the nitrogen atom in the 2-position or the oxygen attached to the 3-position of the pyrazolidinone ring; and at least one soluble mercaptan releasing compound.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: September 5, 2000
    Assignee: Eastman Kodak Company
    Inventors: James A. Friday, Sharon R. Lunt, Scott C. Sutton
  • Patent number: 6110658
    Abstract: Disclosed is a photographic element having a reduced rate of crystal formation comprising a silver halide emulsion layer having associated therewith:(a) a phenolic cyan dye-forming "NB coupler";(b) a first high boiling solvent having Formula (IV):G--C--OO--R.sup.1 (IV)wherein:R.sup.1 is an alkyl or aryl groups; andG is an alkyl (including cycloalkyl and aralkyl) containing linking group; and(c) one or more second high boiling solvents selected from phosphates, phosphonates, phosphine oxides, sulfoxides, and carbonamides, said second high boiling solvent being present in amounts (by weight) sufficient to reduce crystal formation in a dispersion of the coupler compared to a dispersion of the same coupler in a dispersion where the second solvent is replaced with a like amount of the first solvent.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: August 29, 2000
    Assignee: Eastman Kodak Company
    Inventors: James S. Honan, Raymond P. Scaringe, Thomas A. Rosiek
  • Patent number: 6110657
    Abstract: This invention relates to a photographic element comprising a support and at least two silver halide emulsion layers wherein at least one emulsion layer contains an electron transfer agent releasing compound represented by the formula:CAR--(L).sub.n --ETAwherein:CAR is a carrier moiety which is capable of releasing --(L)n--ETA on reaction with oxidized developing agent;L is a divalent linking group, n is 0, 1 or 2; andETA is a releasable 1-aryl-3-pyrazolidinone electron transfer agent having a calculated log partition coefficient (c log P) greater than or equal to 2.40 bonded to L or CAR through either the nitrogen atom in the 2-position or the oxygen attached to the 3-position of the pyrazolidinone ring.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: August 29, 2000
    Assignee: Eastman Kodak Company
    Inventors: Sharon R. Lunt, Scott C. Sutton, Louis E. Friedrich, David T. Southby
  • Patent number: 6096494
    Abstract: A color photographic element includes a support, a silver halide emulsion layer, and associated therewith a phenolic dye-forming coupler having the formula ##STR1## wherein R.sup.1 represents hydrogen, a straight or branched chain alkyl group having 1 to about 20 carbon atoms, a cycloalkyl group having about 3 to 8 carbon atoms in the ring, or an aryl group having 6 to about 20 carbon atoms;R.sup.2 represents hydrogen or a substituent;R.sup.3 represents hydrogen, halogen, or alkyl, cycloalkyl or aryl groups as defined for R.sup.1 ;R.sup.4 represents a fluorosubstituted alkyl group having 1 to about 20 carbon atoms, a fluorosubstituted cycloalkyl group having about 3 to 8 carbon atoms, or a fluorosubstituted aryl group having 6 to about 20 carbon atoms;R.sup.5 represents hydrogen or a substituent; X represents hydrogen or a coupling-off group; Z represents carbon atoms or hetero atoms necessary to complete a 5-,6-, or 7-membered ring; m is 0 to 3; and n is 0 to 4.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: August 1, 2000
    Assignee: Eastman Kodak Company
    Inventors: Ping-Wah Tang, Margaret D. Steele
  • Patent number: 6074809
    Abstract: A color photographic silver halide material having a support, at least one photosensitive silver halide emulsion layer and a polymeric cyan coupler associated with the photosensitive silver halide emulsion layer, which coupler contains polymerised units of the formula (I) ##STR1## in which X means a hydrogen atom or a group eliminable under chromogenic development conditions,R.sub.1 means a hydrogen or halogen atom, an optionally substituted alkyl, aryl or acylamino group,R.sub.2 means an optionally substituted alkyl, aryl or heterocyclic group andn means a number from 0 to 3, is distinguished by improved stability of the cyan dye.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: June 13, 2000
    Assignee: Agfa-Gevaert N.V.
    Inventors: Lydia Simon, Gunter Helling, Beate Weber
  • Patent number: 6057086
    Abstract: A silver halide color photographic material is disclosed, comprising a support having thereon photographic constituent layers containing at least one light-sensitive silver halide emulsion layer, wherein any one of the photographic constituent layers contains at least one coupler for dye formation, at least one reducing agent for color formation represented by the following formula (I) and an auxiliary developing agent and/or a precursor thereof:R.sup.11 --NH--NH--X--R.sup.12 (I)wherein R.sup.11 represents an aryl or heterocyclic group, R.sup.12 represents an alkyl, alkenyl, alkynyl, aryl or heterocyclic group, and X represents --SO.sub.2 --, --CO--, --COCO--, --CO--O--, --CO-- N(R.sup.13)--, --COCO--O--, --COCO--N(R.sup.13)-- or --SO.sub.2 --N(R.sup.13)-- (wherein R.sup.13 represents a hydrogen atom or a group described for R.sup.12).
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: May 2, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Koichi Nakamura, Kiyoshi Takeuchi, Koki Nakamura
  • Patent number: 6033841
    Abstract: A color photographic silver halide material having at least two red-sensitive, cyan-coupling silver halide emulsion layers of different photographic sensitivity, at least two green-sensitive, magenta-coupling silver halide emulsion layers of different photographic sensitivity and at least one blue-sensitive, yellow-coupling silver halide emulsion layer, and having intermediate layers at least between silver halide emulsion layers of different color sensitivity, wherein at least one color coupler is provided in an intermediate layer which is directly adjacent to a lowest-sensitivity silver halide emulsion layer which is sensitive to a defined spectral region and which couples to the complementary color, which color coupler couples in a non-complementary manner with respect to the aforementioned lowest-sensitivity silver halide emulsion layer, is distinguished by its improved reproduction of yellow color shades.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: March 7, 2000
    Assignee: AGFA-Gevaert NV
    Inventors: Peter Bell, Hans-Ulrich Borst, Ralf Buscher, Jorg Siegel, Rainer Scheerer, Heinz Schutz
  • Patent number: 6022680
    Abstract: A silver halide color photographic light-sensitive material comprising a support having provided thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains at least one cyan dye forming coupler and at least one polymer latex represented by the following formula (I):--(A).sub.x --(B).sub.y -- (I)wherein A represents a repeating unit derived from at least one ethylenically unsaturated monomer having at least one --COOM group (wherein M represents a hydrogen atom or a cation) in its molecule; B represents a repeating unit derived from at least one ethylenically unsaturated monomer which does not have the --COOM group; and x and y represent weight percentages of A and B, respectively, x represents a number of from 25 to 85, y represents a number of from 75 to 15, and x+y=100.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: February 8, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junichi Yamanouchi, Masashi Ogiyama, Osamu Takahashi
  • Patent number: 6010809
    Abstract: A silver halide light-sensitive color photographic material is disclosed. The material comprises thermotropic low molecular crystal. The material is improved in light fastness of a dye image and dye-forming efficiency.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: January 4, 2000
    Assignee: Konica Corporation
    Inventors: Fumio Ishii, Shinichi Daiba, Tomohiro Oshiyama, Shigeto Hirabayashi, Yoshiko Iwai