Substituted At Coupling Position With Other Than Hydrogen Patents (Class 430/553)
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Patent number: 6558886Abstract: Disclosed is a silver halide direct view multicolor photographic element comprising a green record containing a green light sensitized silver halide emulsion and comprising either (a) a magenta dye-forming coupler and a cyan dye-forming coupler in an amount of at least 0.1 mole % of the couplers present in the green record, or (b) a green record having a coupler or couplers sufficient to provide upon development a Status A red density greater than 0.23 as measured using a green light separation exposure at a Status A green density of 1.0.Type: GrantFiled: January 18, 2002Date of Patent: May 6, 2003Assignee: Eastman Kodak CompanyInventors: Walter H. Isaac, Jess B. Hendricks, Vincent J. Flow, Patrick W. Webber, Glenn M. Brown, Cynthia A Fitzgerald, Carolyn R. Ellinger
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Patent number: 6555304Abstract: Disclosed is a silver halide direct view multicolor photographic element comprising a red record containing (1) a red light sensitized silver halide emulsion, (2) a cyan dye-forming NB first coupler, and (3) a second coupler selected from (a) a magenta dye forming coupler in an amount of 2-30 mole % of the total coupler in the red record and (b) a cyan dye-forming coupler having a greater absorption in the green spectra than the first coupler in an amount sufficient to provide a Status A green density in the range of 0.27 to 0.40 using a red light separation exposure at a Status A red density of 1.0. Such an element exhibits improved flesh tone reproduction and good dye dark stability.Type: GrantFiled: January 18, 2002Date of Patent: April 29, 2003Assignee: Eastman Kodak CompanyInventors: Walter H. Isaac, Vincent J. Flow, James S. Honan, Jeffrey C. Smitley, Patrick W. Webber, Glenn M. Brown, Cynthia A. Fitzgerald, Jess B. Hendricks, Thomas A. Rosiek, John H. Harder, Carolyn H. Ellinger
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Patent number: 6548234Abstract: 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 (A) a stabilizer of formula (I) wherein R1 is an unsubstituted or substituted alkyl or aryl group or a 5- to 10- membered heterocyclic ring which contains one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; Z is a hydrogen atom or a substituent group; X is a group selected from —SO2—, —SO—, —COO—,—CO— and —CS—, W is one or more unsubstituted or independently substituted alkylene groups connecting the nitrogen atom to X, and p is 0 or 1; R2 is a substituent group; or the groups represented by Z and R2 can be joined to form a ring which may be substituted; and (B) a high-boiling solvent of formula (II) wherein R3 is an unsubstituted or substituted alkyl orType: GrantFiled: August 21, 2001Date of Patent: April 15, 2003Assignee: Eastman Kodak CompanyInventor: Danuta Gibson
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Patent number: 6544298Abstract: The subject of the invention is a composition for the oxidation dyeing of keratinous fibers, and in particular human keratinous fibers such as hair, comprising at least one oxidation base and, as coupler, at least one 2-acylaminophenol of formula (I) comprising at least one cationic group Z of formula (II), their use as coupler for the oxidation dyeing of keratinous fibers, oxidation dyeing methods using them, as well as novel cationic 2-acylaminophenols of formula (I′).Type: GrantFiled: November 21, 2000Date of Patent: April 8, 2003Assignee: L'OrealInventors: Laurent Vidal, Jean-Baptiste Saunier
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Publication number: 20030064331Abstract: A color photographic silver halide material which can be developed to form a negative, at least 95 mol % of the silver halides of which consist of AgCl, and which contains at least one light-sensitive silver halide emulsion layer, the silver halide of which contains at least one compound of formulae (I), (II) and (III):Type: ApplicationFiled: November 5, 2001Publication date: April 3, 2003Inventors: Cuong Ly, Edgar Draber, Matthias Feigl, Gunter Helling, Thomas Kaluschke, Michael Missfeldt, Maria Nietgen, Heinz-Horst Teitscheid, Ralf Weimann, Heinz Wiesen
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Patent number: 6534254Abstract: A color photographic print material which contains a cyan coupler of the formula in which R1 means a hydrogen atom or an alkyl group, R2 means an alkyl, aryl or hetaryl group, R3 means an alkyl or aryl group, R4 means an alkyl, alkenyl, alkoxy, aryloxy, acyloxy, acylamino, sulfonyloxy, sulfamoylamino, sulfonamido, ureido, hydroxycarbonyl, hydroxycarbonyl-amino, carbamoyl, alkylthio, arylthio, alkylamino or arylamino group or a hydrogen atom, Z means a hydrogen atom or a group eliminable under the conditions of chromogenic development, X means S, NH or NR5 and R5 means an alkyl or aryl group, is simultaneously distinguished by good light and dark stability as well as by good color reproduction.Type: GrantFiled: January 8, 2002Date of Patent: March 18, 2003Assignee: Agfa-GevaertInventors: Günter Helling, Ralf Weimann, Siegfried Dzwonnek
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Patent number: 6531269Abstract: 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: GrantFiled: March 12, 2001Date of Patent: March 11, 2003Assignee: Agfa-Gevaert N.V.Inventors: Ralf Wirowski, Jan Haller, Stefan Herrmann, Jürgen Jung
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Patent number: 6521395Abstract: 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: GrantFiled: January 30, 2002Date of Patent: February 18, 2003Assignee: Eastman Kodak CompanyInventors: William J. Begley, Gary M. Russo
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Patent number: 6518000Abstract: 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: GrantFiled: January 30, 2002Date of Patent: February 11, 2003Assignee: Eastman Kodak CompanyInventors: William J. Begley, Gary M. Russo, Mathilde R. Triguel
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Patent number: 6511796Abstract: The invention provides a multilayer silver halide color photographic element comprising a support having coated thereon at least two red-sensitive silver halide emulsion layers having different sensitivity to red light, characterized in that the most sensitive of said red-sensitive silver halide emulsion layers comprises a core-shell silver bromoiodide tabular emulsion having a pure bromide core, a total silver iodide content lower than 10% and an aspect ratio higher than 4.Type: GrantFiled: May 21, 2001Date of Patent: January 28, 2003Assignee: Ferrania S.p.A.Inventors: Giuseppe Rocca, Antonio Poggi, Simona Fava
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Patent number: 6509500Abstract: This invention relates to a method of making an incorporated photographic amide comprising a) continuously combining an amine capable of forming an incorporated photographic amide, an acid chloride, one or more acid-absorbing reagents, and one or more water-immiscible solvents to continuously form a reaction mixture; b) continuously reacting the amine and acid chloride to form an incorporated photographic amide; and c) separating the incorporated photographic amide from the reaction mixture.Type: GrantFiled: May 24, 2001Date of Patent: January 21, 2003Assignee: Eastman Chemical CompanyInventors: Harold Evans Carman, Eleanor Hawkins Cwirko, Robert Joseph Maleski, Karen Marie Richards, Jerry Neal Schlather
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Color-developing agent, silver halide photographic light-sensitive material and image-forming method
Patent number: 6495304Abstract: There is disclosed a novel color-developing agent of a 1,2,4-thiadiazol-5-yl hydrazine type. There is also disclosed a silver halide photographic light-sensitive material which gives sufficient color formation by development and forms an image excellent in image quality and image storability, by using the color-developing agent. Further, there is disclosed an image-forming method using the light-sensitive material.Type: GrantFiled: June 25, 2001Date of Patent: December 17, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Osamu Uchida, Yasuhiro Ishiwata, Kiyoshi Takeuchi, Taiji Katsumata, Takashi Nakamura -
Publication number: 20020187443Abstract: 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: ApplicationFiled: January 31, 2002Publication date: December 12, 2002Inventor: Takeshi Hakii
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Publication number: 20020172900Abstract: A color photographic silver halide material having a support, which material comprises at last one blue-sensitive, yellow-coupling silver halide emulsion layer and at least one geen-sensitive, magenta-coupling silver halide emulsion layer and at least one red-sensitive, cyan-coupling silver halide emulsion layer, and which contains at least one masking coupler which has two chromophores which absorb in the wavelength range from 420 to 750 nm and are eliminable or decolorisable by coupling with the developer oxidation product, is distinguished by improved sensitivity associated with undiminished color purity.Type: ApplicationFiled: January 10, 2002Publication date: November 21, 2002Inventors: Jan Haller, Ralf Wirowski
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Patent number: 6479225Abstract: 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: GrantFiled: July 30, 2001Date of Patent: November 12, 2002Assignee: Eastman Kodak CompanyInventors: David J. Valvo, Kurt M. Schroeder, Michael R. Roberts
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Publication number: 20020136993Abstract: A color photographic silver halide material containing in at least one red-sensitive layer a cyan coupler having formula (1) 1Type: ApplicationFiled: January 8, 2002Publication date: September 26, 2002Inventors: Gunter Helling, Ralf Weimann
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Patent number: 6444412Abstract: 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): wherein R1 and R2 are independently selected from hydrogen or an unsubstituted or substituted alkyl, aryl, alkoxy, aryloxy or amino group or may combine to complete a 5-10 membered heterocyclic ring which may contain in addition to the silicon atom one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; each Z independently represents the atoms necessary to complete a substituted or unsubstituted arene or heteroaromatic ring system; X is a single bond or a linking group having a single atom which connects the arene rings or heteroaromatic ring systems; or X forms, together with substituents ortho to X on the arene rings or heteroaromatic ring systems, a fused unsubstituted or substituted 5-, 6- or 7-membered ring, which may contType: GrantFiled: August 21, 2001Date of Patent: September 3, 2002Assignee: Eastman Kodak CompanyInventors: David Clarke, Llewellyn J. Leyshon, Christopher P. Moore
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Patent number: 6444417Abstract: 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: GrantFiled: August 21, 2001Date of Patent: September 3, 2002Assignee: Eastman Kodak CompanyInventors: David Clarke, Llewellyn J. Leyshon, Katie E. Smith
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Patent number: 6436623Abstract: 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: GrantFiled: October 31, 2001Date of Patent: August 20, 2002Assignee: Agfa-GevaertInventors: Jörg Hagemann, Jan Haller, Günter Helling
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Color-developing agent, silver halide photographic light-sensitive material and image-forming method
Publication number: 20020102489Abstract: There is disclosed a novel color-developing agent of a 1,2,4-thiadiazol-5-yl hydrazine type. There is also disclosed a silver halide photographic light-sensitive material which gives sufficient color formation by development and forms an image excellent in image quality and image storability, by using the color-developing agent. Further, there is disclosed an image-forming method using the light-sensitive material.Type: ApplicationFiled: June 25, 2001Publication date: August 1, 2002Inventors: Osamu Uchida, Yasuhiro Ishiwata, Kiyoshi Takeuchi, Taiji Katsumata, Takashi Nakamura -
Patent number: 6426178Abstract: 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, andType: GrantFiled: August 7, 2000Date of Patent: July 30, 2002Assignee: Eastman Kodak CompanyInventors: Michael R. Roberts, Kurt M. Schroeder, Frank D. Coms
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Publication number: 20020098449Abstract: 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: 1Type: ApplicationFiled: March 16, 2001Publication date: July 25, 2002Inventors: Toyohisa Oya, Kazunobu Katoh, Shigeo Hirano
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Patent number: 6416943Abstract: The invention provides a color photographic element suitable for forming both a colored dye image and a neutral silver-based image, comprising a support bearing at least one light-sensitive silver halide emulsion layer containing a coupler capable of forming a colored dye upon development, and bearing a further light-sensitive silver halide emulsion layer containing a coupler which is capable of releasing a thiovinyl group upon development that is capable of reacting to form a neutral silver-based image.Type: GrantFiled: November 14, 2000Date of Patent: July 9, 2002Assignee: Eastman Kodak CompanyInventors: Robert F. Romanet, Susan D. Hill, Stephen P. Singer, Anabisdally I. Bodden
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Publication number: 20020076664Abstract: Pyrrolotriazole compounds of the formula (I) and silver halide color photographic light-sensitive materials containing the compound as a cyan coupler, are disclosed: 1Type: ApplicationFiled: September 27, 2001Publication date: June 20, 2002Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Takeshi Nakamine, Yasuaki Deguchi
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Publication number: 20020064735Abstract: 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): 1Type: ApplicationFiled: August 21, 2001Publication date: May 30, 2002Applicant: Eastman Kodak CompanyInventors: David Clarke, Llewellyn J. Leyshon, Katie E. Smith
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Publication number: 20020061480Abstract: 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 andType: ApplicationFiled: August 21, 2001Publication date: May 23, 2002Applicant: Eastman Kodak CompanyInventor: Danuta Gibson
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Publication number: 20020058212Abstract: 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): 1Type: ApplicationFiled: August 21, 2001Publication date: May 16, 2002Applicant: Eastman Kodak CompanyInventors: David Clarke, Llewellyn J. Leyshon, Christopher P. Moore
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Patent number: 6387606Abstract: 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: GrantFiled: October 18, 2001Date of Patent: May 14, 2002Assignee: Eastman Kodak CompanyInventors: William J. Begley, Frank D. Coms, Gary M. Russo
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Patent number: 6383728Abstract: 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: GrantFiled: December 12, 2000Date of Patent: May 7, 2002Assignee: Agfa-GevaertInventors: Jörg Hagemann, Jan Haller, Günter Helling
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Publication number: 20020051945Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan “NB coupler” having the formula (I): 1Type: ApplicationFiled: October 18, 2001Publication date: May 2, 2002Inventors: William J. Begley, Frank D. Coms, Gary M. Russo
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Patent number: 6379879Abstract: 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: GrantFiled: February 26, 2001Date of Patent: April 30, 2002Assignee: Agfa-GevaertInventors: Jörg Hagemann, Günter Helling, Heinz Wiesen, Ralf Wirowski, Ralf Büscher
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Patent number: 6368780Abstract: A silver halide photographic material excellent in color generation, color reproduction and image fastness, which comprises at least one coupler represented by the following formula: wherein R1 represents an alkyl group which may be optionally substituted, with the proviso that an alkyl group substituted by a halogen atom alone and an alkyl group substituted by a halogen atom and an aryl group are excluded from R1; R2 and R3, which may be the same or different, each represents a hydrogen atom or a substituent; and X1 represents a group which can leave by coupling with an oxidation product of a color developing agent; and an image formation method using the same.Type: GrantFiled: July 28, 2000Date of Patent: April 9, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyoshi Takeuchi, Taiji Katsumata, Satoshi Sano, Yuki Mizukawa
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Publication number: 20020025497Abstract: A silver halide color photographic light-sensitive material has a red-, green-, and blue-sensitive emulsion layer in this order from the side closest to a support.Type: ApplicationFiled: July 6, 2001Publication date: February 28, 2002Inventors: Naoto Matsuda, Hisashi Mikoshiba
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Publication number: 20020018971Abstract: 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: ApplicationFiled: February 26, 2001Publication date: February 14, 2002Inventors: Jorg Hagemann, Gunter Helling, Heinz Wiesen, Ralf Wirowski, Ralf Buscher
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Publication number: 20020015923Abstract: The invention provides a multilayer silver halide color photographic element comprising a support having coated thereon at least two red-sensitive silver halide emulsion layers having different sensitivity to red light, characterized in that the most sensitive of said red-sensitive silver halide emulsion layers comprises a core-shell silver bromoiodide tabular emulsion having a pure bromide core, a total silver iodide content lower than 10% and an aspect ratio higher than 4.Type: ApplicationFiled: May 21, 2001Publication date: February 7, 2002Applicant: TulalipInventors: Giuseppe Rocca, Antonio Poggi, Simona Fava
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Patent number: 6322959Abstract: A silver halide color photographic lightsensitive material comprises a support and, superimposed thereon, a yellow color-forming blue-sensitive emulsion layer, a magenta color-forming green-sensitive emulsion layer containing a magenta coupler represented by a general formula (MC-1): and a cyan color-forming red-sensitive emulsion layer containing a cyan coupler represented by a general formula (NC-1):Type: GrantFiled: July 17, 2000Date of Patent: November 27, 2001Assignee: Fuji Photo Film Co., Ltd.Inventor: Naoto Matsuda
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Publication number: 20010016304Abstract: 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): 1Type: ApplicationFiled: December 12, 2000Publication date: August 23, 2001Inventors: Jorg Hagemann, Jan Haller, Gunter Helling
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Publication number: 20010014432Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan “NB coupler” having the formula (I): 1Type: ApplicationFiled: February 12, 2001Publication date: August 16, 2001Inventors: William J. Begley, Frank D. Coms, Gary M. Russo
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Patent number: 6261755Abstract: 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: eacType: GrantFiled: February 28, 2000Date of Patent: July 17, 2001Assignee: Eastman Kodak CompanyInventors: Danuta Gibson, James S. Honan, Thomas A. Rosiek
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Patent number: 6251575Abstract: 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: GrantFiled: November 1, 2000Date of Patent: June 26, 2001Assignee: Eastman Kodak CompanyInventors: William J. Begley, Gary M. Russo, Denis T. Curt
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Patent number: 6245497Abstract: A photographic element comprises a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said emulsion layers comprises a) an emulsion with 3D, core/shell grains of at least 0.Type: GrantFiled: December 20, 1999Date of Patent: June 12, 2001Assignee: Eastman Kodak CompanyInventors: Jon N. Eikenberry, David T. Southby
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Patent number: 6242170Abstract: This invention provides a multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said emulsion layers comprises large tabular grains having an average equivalent circular diameter of greater than 3 &mgr;m and contains a one equivalent image dye-forming coupler and a fragmentable electron donating compound of the formula: X—Y′ or a compound which contains a moiety of the formula —X—Y′; wherein X is an electron donor moiety, Y′ is a leaving proton HType: GrantFiled: December 20, 1999Date of Patent: June 5, 2001Assignee: Eastman Kodak CompanyInventors: Joseph P. Pepe, Jeffrey C. Hansen, James A. Friday, Annabel A. Muenter, David T. Southby
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Patent number: 6221571Abstract: 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: GrantFiled: December 10, 1998Date of Patent: April 24, 2001Assignee: Eastman Kodak CompanyInventors: Paul L. Zengerle, Gary N. Barber
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Patent number: 6207363Abstract: 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, atType: GrantFiled: December 28, 1999Date of Patent: March 27, 2001Assignee: Eastman Kodak CompanyInventors: William J. Begley, Frank D. Coms, Gary M. Russo
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Patent number: 6197491Abstract: 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: GrantFiled: December 28, 1999Date of Patent: March 6, 2001Assignee: Eastman Kodak CompanyInventors: William J. Begley, Gary M. Russo, Denis T. Curt
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Patent number: 6197485Abstract: 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: GrantFiled: September 27, 1993Date of Patent: March 6, 2001Assignee: Minnesota Mining & Manufacturing CompanyInventors: Luigi Cellone, Brunella Fornasari, Giovanni Giusto
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Patent number: 6197490Abstract: 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: GrantFiled: December 28, 1999Date of Patent: March 6, 2001Assignee: Eastman Kodak CompanyInventors: William J. Begley, Gary M. Russo, Denis T. Curt
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Patent number: 6197492Abstract: 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: GrantFiled: December 28, 1999Date of Patent: March 6, 2001Assignee: Eastman Kodak CompanyInventors: William J. Begley, Frank D. Coms, Gary M. Russo
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Patent number: 6194135Abstract: A negatively developing color photographic silver halide material having a support and at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, at least 95 mol % of the silver halides of which consist of AgCl, and in which at least one silver halide emulsion layer exhibits solarization on analogue exposure, is distinguished on scanning exposure by elevated color density and on analogue exposure by contrast which is independent of exposure time.Type: GrantFiled: October 22, 1999Date of Patent: February 27, 2001Assignee: Agfa-Gevaert Naamloze VennootschapInventors: Cuong Ly, Stefan Amann, Jürgen Jung, Dieter Rockser
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Patent number: 6194131Abstract: 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: GrantFiled: May 24, 2000Date of Patent: February 27, 2001Assignee: Fuji Photo film Co., Ltd.Inventors: Takayuki Ito, Hidetoshi Kobayashi