Stabilizing Patents (Class 430/372)
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Patent number: 4584263Abstract: A photographic light-sensitive material is described, comprising a support having thereon at least one combination of a silver halide photographic emulsion layer and associated therewith a dye-providing compound capable of imagewise forming a mobile dye as a result of imagewise light exposure and photographic development, said silver halide photographic emulsion layer or a layer containing said dye-providing compound having dispersed, in a hydrophilic colloid, a water-insoluble and organic solvent-soluble homopolymer or copolymer having as the main chain or a side chain thereof a repeating unit including a ##STR1## bond and a redox compound represented by formula (I) as combined paticles; ##STR2## wherein R represents a hydrogen atom; a substituted or unsubstituted alkyl group, aryl group, acylamino group, alkoxy group, aryloxy group, alkylthio group, arylthio group, carbamoyl group, acyl group, alkoxycarbonyl group, aryloxycarbonyl group, sulfamoyl group, alkylsulfonyl group, or arylsulfonyl group; a halogenType: GrantFiled: August 8, 1985Date of Patent: April 22, 1986Assignee: Fuji Photo Film Co., Ltd.Inventor: Osamu Takahashi
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Patent number: 4567134Abstract: A method for processing of a light-sensitive silver halide color photographic material comprising a continuous processing method comprising a stabilizing processing step involving substantially no water washing step after fixing processing, characterized in that said light-sensitive silver halide color photographic material contains at least one of cyan couplers represented by the formula (I) or (II) shown below, and the amount of stabilizing solution supplemented is 0.1 to 30 times the amount carried over from the precedent bath per unit area of said light-sensitive material to be processed: ##STR1## wherein X represents ##STR2## (wherein R.sub.2 is an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group or a hetero ring; R.sub.3 is a hydrogen atom, an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group or a hetero ring; or R.sub.2 and R.sub.3 may be bonded together to form a 5- or 6-membered ring), R.sub.Type: GrantFiled: March 26, 1984Date of Patent: January 28, 1986Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeharu Koboshi, Masayuki Kurematsu
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Patent number: 4562144Abstract: An image stabilizer for silver halide photographic materials which contains a water-soluble bismuth compound is disclosed. In a preferred embodiment, the stabilizer also contains a water soluble chelating agent capable of forming a bismuth complex or its salt having a stability constant (log KMA) of 3 or more, said constant being represented by formula (I): ##EQU1## wherein M is a bismuth ion and A is a complex forming anion. By using this stabilizer, the processed dye image is kept stable over an extended period and the occurrence of yellow stain in the non-image area is inhibited. The stabilizer is applicable not only to color photographic materials but also to black-and-white materials.Type: GrantFiled: October 17, 1984Date of Patent: December 31, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masayuki Kurematsu, Shigeharu Koboshi
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Patent number: 4556630Abstract: A silver halide color photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer, the color photographic light-sensitive material having a photographic layer containing at least one magenta coupler represented by the following general formula (I) or (II): ##STR1##Type: GrantFiled: June 20, 1984Date of Patent: December 3, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Furutachi, Kotaro Nakamura, Takeshi Hirose
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Patent number: 4555476Abstract: An image-forming process is disclosed. This process comprises heating a photographic material comprising a support having provided thereon at least light-sensitive silver halide, binder, and a dye releasing redox compound in the presence of a compound represented by the following general formula (A): ##STR1## wherein R.sub.1 represents a (m+n)-valent straight, branched or cyclic alkane or a (m+n)-valent straight, branched or cyclic alkene, R.sub.2 and R.sub.3, which may be the same or different, each represents a straight, branched or cyclic alkyl group or a straight, branched or cyclic alkenyl group, n represents 0, 1, 2 or 3, and m represents 0, 1 or 2, with m+n being 1 or more,after, or simultaneously with, imagewise exposure in the state of substantial absence of water to thereby imagewise form a mobile dye.Type: GrantFiled: March 29, 1984Date of Patent: November 26, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Yukihiko Sakaguchi, Toshiaki Aono, Shinsaku Fujita
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Patent number: 4555479Abstract: A silver halide color photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer, the color photographic light-sensitive material having at least one layer containing at least one 2-equivalent magenta coupler of the 5-pyrazolone type represented by the following general formula (I): ##STR1## wherein W represents a phenyl group substituted with at least one substituent selected from the group consisting of a halogen atom, an alkyl group, an alkoxy group, an alkoxycarbonyl group and a cyano group; Y represents an acylamino group or an anilino group; and Z represents a group capable of being released upon coupling, and at least one compound represented by the following general formula (II): ##STR2## wherein R.sup.1 and R.sup.2, which may be the same or different, each represents a hydrogen atom, an alkyl group or an aryl group, provided that both R.sup.1 and R.sup.2 do not represent hydrogen atoms at the same time; Z.sup.Type: GrantFiled: May 25, 1984Date of Patent: November 26, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Sakai, Masaki Okazaki, Yoshio Inagaki
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Patent number: 4547452Abstract: A color diffusion transfer photographic element containing a compound having a sulfinic acid group or a slat thereof is disclosed. The element is comprised of a photosensitive element and an alkaline processing composition element. The sufinic acid group or a salt thereof includes a compound represented by the general formula (Y-SO.sub.2).sub.n M wherein M is a hydrogen atom, an alkyl metal atom, an alkaline earth metal atom, an ammonium group, or an organic base; Y is an alkyl group, a substituted alkyl group, an aryl group or a substituted aryl group, and n is 1 or 2. By utilizing the compound within the processing solution it is possible to prevent the deterioration of processing composition which occurs when the material is stored for a long period of time.Type: GrantFiled: September 29, 1983Date of Patent: October 15, 1985Assignee: Fuji Photo Film Co., Ltd.Inventor: Ichizo Toya
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Patent number: 4540653Abstract: A photographic element comprising a support having thereon a layer containing a dye that is formed by the reaction of an anilino-type magenta coupler with the oxidized product of a color developing agent, the said layer comprising an organic solvent having a dielectric constant of not more than 6.5 and at least one of metallic complexes having the following Formula [I], Formula [II] or Formula [III]: ##STR1## In Formulas [I], [II] and [III], M is a nickel atom, copper atom, cobalt atom, palladium atom or platinum atom; X.sub.1 and X.sub.2 each is an oxygen atom, sulfur atom or --NR.sub.5 -- (wherein R.sub.5 is a hydrogen atom, an alkyl, aryl or hydroxyl radical); X.sub.3 is a hydroxyl or mercapto radical; Y is an oxygen atom or sulfur atom; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each is a hydrogen atom or a halogen atom or a cyano radical, or an alkyl, aryl, cycloalkyl or heterocyclic radical which each is bonded directly or through a divalent combining radical to a carbon atom; and at least one of the R.sub.Type: GrantFiled: August 23, 1984Date of Patent: September 10, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toyoki Nishijima, Kaoru Onodera
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Patent number: 4537856Abstract: A method of processing a silver halide color photographic material is disclosed. The material is treated with a bleach-fixing solution or a fixing solution, and then, without washing with water, treated with a stabilizing solution incorporating a water-soluble chelate compound of at least one metal selected from the group consisting of Ba, Ca, Ce, Co, In, La, Mn, Ni, Pb, Ti, Sn, Zn and Zr and the group consisting of Mg, Al and Sr.Type: GrantFiled: April 5, 1984Date of Patent: August 27, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masayuki Kurematsu, Shigeharu Koboshi
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Patent number: 4536467Abstract: A process for forming an image is described, comprising heating a light-sensitive material in a substantially water-free condition to form a mobile dye in an image pattern, said material having a support bearing thereon light-sensitive silver halide, a binder, and a dye-releasing redox compound capable of imagewise reducing the silver halide and releasing a hydrophilic dye on reaction with said silver halide when heated, after or simultaneously with imagewise exposure, in the presence of a compound having a melting point below 60.degree. C.Type: GrantFiled: March 29, 1984Date of Patent: August 20, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Yukihiko Sakaguchi, Toshiaki Aono, Shinsaku Fujita
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Patent number: 4536466Abstract: A method of forming an image comprising heating a light-sensitive material having at least a light-sensitive silver halide, a binder and a dye releasing redoc compound which is capable of reducing the light-sensitive silver halide and is capable of reacting with the light-sensitive silver halide by heating to release a hydrophilic dye on a support, under the condition substantially free from water after or simultaneously with imagewise exposure, in the presence of a compound represented by the general formula (A) described below to form imagewise a mobile dye. ##STR1## wherein R represents an alkyl group, a cycloalkyl group, an aryl group or an aralkyl group; R.sup.1 represents an alkyl group, a cycloalkyl group, an aryl group or an aralkyl group; R.sup.2 represents an alkyl group, an aryl group, an aralkyl group, a halogen atom or a group of R.sup.Type: GrantFiled: March 29, 1984Date of Patent: August 20, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Yukihiko Sakaguchi, Toshiaki Aono, Shinsaku Fujita
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Patent number: 4530899Abstract: A color photographic material containing, as a color stain preventing agent, a substantially colorless phenol and/or naphthol derivative having a group which is not released by displacement of the oxidation product of an aromatic primary amine color developing agent at the 4-position thereof and at least one sulfonamido group and at least one sulfonamido group, acylamino group or sulfonyl group at other positions of the ring. The color stain preventing agent very effectively removes the oxidation product of a color developing agent at color development and maintain the effect for a long period of time.Type: GrantFiled: April 18, 1984Date of Patent: July 23, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobutaka Ohki, Nobuo Furutachi, Yoshinobu Yoshida
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Patent number: 4526863Abstract: A silver halide photographic light-sensitive material comprising a support having thereon at least two light-sensitive silver halide emulsion layers which are sensitive to light of substantially the same spectral region and a relatively light-insensitive layer containing silver halide, zinc oxide or titanium oxide positioned between the two light-sensitive silver halide emulsion layers and at least one of the two light-sensitive silver halide emulsion layers containing a compound represented by the following general formula (I):A--B (I)wherein A represents a residue of a compound capable of coupling with the oxidation product of an aromatic primary amine developing agent by removal of a hydrogen atom from the active position of the compound, and B represents a group which is released on coupling and exhibits a fogging function in a developing solution.Type: GrantFiled: March 21, 1984Date of Patent: July 2, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Shunji Takada, Hidetoshi Kobayashi
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Patent number: 4525451Abstract: A novel color stain inhibitor is disclosed, which is a compound comprising a phenol or naphthol ring substituted by at least one substituted or unsubstituted sulfamoyl group. Preferred examples of these compounds are represented by the general formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and Q are as defined herein. In light-sensitive materials containing the color stain inhibitors of the present invention, color stain is efficiently prevented.Type: GrantFiled: April 16, 1984Date of Patent: June 25, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobutaka Ohki, Yoshinobu Yoshida
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Patent number: 4518688Abstract: Compounds of the formula I ##STR1## in which X is a group ##STR2## and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are monovalent organic radicals, at least one of which contains a sterically hindered phenol group and at least one of which contains a polyalkylpiperidine group, are outstanding light stabilizers for color-photographic recording materials. They also have a stabilizing action on the photo dyes and their precursors when stored in the dark.Type: GrantFiled: November 25, 1983Date of Patent: May 21, 1985Assignee: Ciba-Geigy AGInventors: David G. Leppard, Jean Rody
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Patent number: 4518679Abstract: A color-photographic recording material which, in at least one light-sensitive silver halide emulsion layer, one intermediate layer and/or one protective layer, contains, as a stabilizer, at least one polyalkylpiperidine compound of the formula I or II ##STR1## in which m is the numbers 1 or 2 and, if m=1, A is a group of the formula ##STR2## and, if m=2, A is a group of the formula ##STR3## Color images which are obtained by image-wise exposure and development of this color-photographic recording material, display good stability towards the action of visible and ultraviolet light.Reference is made to the description in respect of the meanings of the substituents and symbols in the formulae I and II.Type: GrantFiled: December 2, 1983Date of Patent: May 21, 1985Assignee: Ciba-Geigy AGInventors: David G. Leppard, Jean Rody
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Patent number: 4517283Abstract: A color-photographic recording material which, in at least one light-sensitive silver halide emulsion layer, an interlayer and/or a protective layer, contains a stabilizer mixture comprising(i) a compound with at least one group of the formula ##STR1## or a polymer with recurring structural units of the formula I, and (ii) a phenolic antioxidant.Color images obtained by imagewise exposure and development of this color-photographic recording material show good stability to the action of visible and ultraviolet light.With respect to the definitions of the substituents in formula I, reference is made to the description.Type: GrantFiled: December 15, 1983Date of Patent: May 14, 1985Assignee: Ciba-Geigy AGInventors: David G. Leppard, Jean Rody
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Patent number: 4500630Abstract: A silver halide photosensitive material is developed with a developing solution containing an aromatic primary amine in the presence of a coupler represented by the following general formula (I): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each represents a hydrogen atom or a certain substituent group, and X represents a hydrogen atom or a coupling eliminable group; to provide magenta color image having high color purity.Type: GrantFiled: February 15, 1984Date of Patent: February 19, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Tadahisa Sato, Toshio Kawagishi, Nobuo Furutachi
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Patent number: 4496649Abstract: A color-photographic recording material which, in at least one light-sensitive silver halide emulsion layer, an interlayer and/or a protective layer, contains at least one polyalkylpiperidine compound of the formula I ##STR1## in which R is an OH group and R.sub.1 is a group of the formula II ##STR2## or of the formula ##STR3## and X is a group of the formula ##STR4## or of the formula ##STR5## Color images obtained by imagewise exposure and development of this color-photographic recording material show good stability to the action of visible and ultraviolet light.With respect to the definitions of the substituents and symbols in the formulae, reference is made to the description.Type: GrantFiled: December 15, 1983Date of Patent: January 29, 1985Assignee: Ciba-Geigy AGInventors: David G. Leppard, Jean Rody
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Patent number: 4491630Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing at least one kind of compound represented by the following general formula (I): ##STR1## wherein each substituent represented by R.sub.1, R.sub.2, R.sub.3, X, or Ar and m are defined within the specification, said silver halide color photographic light-sensitive material comprises a compound represented by the following general formula (II) in the silver halide emulsion layer containing the compound represented by the above general formula (I) and/or a hydrophilic colloid layer which is positioned at the remoter side than the silver halide emulsion layer from the support: ##STR2## wherein each substituent represented by Y, R.sub.4, R.sub.5, R.sub.6, R.sub.7 or Ar is defined within the specification.Type: GrantFiled: January 24, 1983Date of Patent: January 1, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Akio Mitsui, Masakazu Morigaki, Takashi Nakamura
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Patent number: 4483918Abstract: A silver halide color photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer, the color photographic light-sensitive material having at least one layer containing at least one kind of 5-pyrazolone type 2-equivalent magenta coupler represented by the following general formula (Ia): ##STR1## wherein W represents phenyl substituted with at least one halogen, alkyl, alkoxy, alkoxycarbonyl or cyano; Y represents acylamino or anilino; and Z represents aryloxy, alkoxy, heterocyclic oxy, alkylthio, arylthio, heterocyclic thio, acylthio, acylamino, sulfonamido, alkoxycarbonylamino, aryloxycarbonylamino or nitrogen containing heterocyclic ring which is bonded to the active position of the pyrazolone ring through the nitrogen atom, and at least one kind of compound represented by the following general formula (II): ##STR2## wherein R.sub.1 represents substituted or unsubstituted alkyl, aralkyl, cycloalkyl or alkenyl; R.sub.Type: GrantFiled: December 14, 1982Date of Patent: November 20, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Sakai, Yoshimasa Aotani, Yoshiharu Yabuki, Nobuo Furutachi
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Patent number: 4481268Abstract: A method of forming a photographic azo or azamethine dye image in an exposed photographic silver halide element, the method of comprising the steps of (a) developing the imagewise exposed material to form an imagewise pattern of oxidized color developing agent, (b) reacting the oxidized color developing agent with a color coupler to produce an image dye, characterized in that at least one of the color developing agent and the color coupler possesses a metal chelating site such that the image dye is capable of forming a bi-, tri- or higher-dentate metallized dye, and (c) contacting the image dye with polyvalent metal ions to form a metallized dye image. Specified color developing agents include heterocyclic substituted hydrazides and specified couplers include benziso-oxazolones and 2H-pyrazolo-[3,4-b]pyridines in addition to more conventional compounds.Type: GrantFiled: April 29, 1983Date of Patent: November 6, 1984Assignee: Eastman Kodak CompanyInventors: Joseph Bailey, David Clarke, Michael W. Crawley, Peter D. Marsden, Jasbir Sidhu
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Patent number: 4474874Abstract: A color photographic silver halide light-sensitive material which prevents formation of color fog is disclosed, containing a negative gradation photographic silver halide emulsion which is substantially of the surface latent image type, and at least one compound represented by the general formula (I): ##STR1## wherein X represents --CONR.sup.1 R.sup.2, --COR.sup.1, --SO.sub.2 R.sup.1, or --SO.sub.3 R.sup.1 and wherein R.sup.1 and R.sup.2 each are selected from the group consisting of a hydrogen atom, a substituted or unsubstituted aliphatic group, and a substituted or unsubstituted aromatic group, and are selected such that may combine together to form a ring.Type: GrantFiled: March 11, 9183Date of Patent: October 2, 1984Assignee: Fuji Photo Film Company LimitedInventors: Shigeo Hirano, Kei Sakanoue, Keiichi Adachi
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Patent number: 4473631Abstract: A heat-developable color photographic material is disclosed. The material is comprised of a support having thereon at least a light-sensitive silver halide, a hydrophilic binder, a dye releasing compound reductive and capable of releasing a hydrophilic dye and a compound represented by the following general formula (A): ##STR1## wherein A.sub.1, A.sub.2, A.sub.3, and A.sub.4, which may be the same or different, each represents a hydrogen atom or a substituent selected from an alkyl group, a substituted alkyl group, a cycloalkyl group, an aralkyl group, an aryl group, a substituted aryl group and a heterocyclic group, or A.sub.1 and A.sub.2 or A.sub.3 and A.sub.4 may combine with each other to form a ring.The heat-developable color photographic material can easily provide in a short time a clear and stable color image having a high color density and low fog by imagewise exposure and heat development procedure.Type: GrantFiled: November 4, 1983Date of Patent: September 25, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroyuki Hirai, Hideki Naito, Hiroshi Hara, Kozo Sato
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Patent number: 4471049Abstract: Photographic elements intended to generate dye images containing at least one colloidal silver layer and at least one hydroquinone antistain agent have been observed to suffer from random fog spotting, which can be reduced by incorporating a catalyst for the decomposition of hydrogen peroxide. The imagewise exposed elements when photographically processed and bleached of silver produce viewable dye images.Type: GrantFiled: August 22, 1983Date of Patent: September 11, 1984Assignee: Eastman Kodak CompanyInventors: Roy King, David T. Southby
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Patent number: 4463085Abstract: A silver halide color photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer, the color photographic light-sensitive material containing at least one kind of 2-equivalent magenta coupler represented by the following general formula (Ia): ##STR1## wherein Ar represents phenyl substituted with at least one halogen, alkyl, alkoxy, alkoxycarbonyl or cyano; Y represents acylamino or anilino; and Z represents a group capable of being released by coupling, and at least one kind of piperidine compound represented by the following general formula (II): ##STR2## wherein R.sub.1 represents hydrogen or alkyl; R.sub.2 represents alkyl, hydroxyalkyl, alkenyl alkynyl or benzyl; W represents hydrogen, alkyl, hydroxy, silyloxy, alkylamino, aryloxy, allyl, alkoxy, acylamino, sulfonamido, alkoxycarbonyl, carboxy, acyloxy or phosphoric acid oxy.Type: GrantFiled: December 14, 1982Date of Patent: July 31, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Akio Mitsui, Masakazu Morigaki
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Patent number: 4452884Abstract: A color-photographic recording material which, in at least one light-sensitive silver halide emulsion layer, an interlayer and/or a protective layer, contains at least one polyalkylpiperidine compound of the formula I ##STR1## as a light stabilizer. Color images obtained by imagewise exposure and development of this color-photographic recording material display good stability to the action of visible and ultra-violet light.With respect to the definitions of the substituents and symbols in formula I, reference is made to the specification.Type: GrantFiled: December 17, 1982Date of Patent: June 5, 1984Assignee: Ciba-Geigy AGInventor: David G. Leppard
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Patent number: 4447523Abstract: Useful scavengers for oxidized developing agents in photographic elements are 2,4-disulfonamidophenols, or alkali labile precursors of such phenols.Type: GrantFiled: June 9, 1983Date of Patent: May 8, 1984Assignee: Eastman Kodak CompanyInventors: Robert E. Ross, Wilbur S. Gaugh
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Patent number: 4446219Abstract: In a photographic material suitable for use as image receptor element for the dye diffusion transfer process, a dyeable layer arranged on a layer support contains nickel chelates of a 2,2'-bisphenol corresponding to one of the general formulae I and II as metallizing agents for the formation of colored complexes of organic colorless or colored complex formers. The chelatizable image dyes which are transferred image-wise into the dye absorbent layer in the process of development give rise to the corresponding nickel complexes which have improved light stability. ##STR1## X=S, ##STR2## or --SO.sub.2 --; R.sup.1 =a hydrocarbon group optionally attached through --O-- or a halogen or R.sup.4 ;R.sup.2 =hydrogen, halogen, alkyl or alkoxy, alkenyl a condensed benzene ring or R.sup.4 if R.sup.1 does not denote a group R.sup.4 ;R.sup.3 =R.sup.2 or ##STR3## R.sup.4 =--CO--O--R.sup.5, ##STR4## --NH--CO--R.sup.2 or --NH--SO.sub.2 --R.sup.9 ; R.sup.5 =alkyl, aralkyl or cycloalkyl;R.sup.6, R.sup.Type: GrantFiled: August 9, 1982Date of Patent: May 1, 1984Assignee: Agfa-Gevaert AktiengesellschaftInventors: Peter Bergthaller, Jurgen Strauss
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Patent number: 4430425Abstract: Color photographic silver halide material which contains in at least one coupler containing silver halide emulsion layer or in a layer adjacent thereto(a) a hydroquinone of the formula ##STR1## wherein p is 1 or 2 and q is 0 or 1, provided that p+q is 1 or 2, R is a radical of the formula ##STR2## wherein Q is selected from the residues (1) --COZR.sub.4, wherein Z is O or NR.sub.5, and R.sub.4 is hydrogen, alkyl optionally interrupted by oxygen, cycloalkyl, alkenyl, aryl, aralkyl or a heterocyclic ring, and R.sub.5 is hydrogen or alkyl or together with R.sub.4 and the nitrogen atom to which they are bonded form a heterocyclic ring,(2) --OX, wherein X is R.sub.5 or --COR.sub.7, wherein R.sub.7 is hydrogen, alkyl cycloalkyl, alkenyl, aryl or aralkyl,(3) --NR.sub.8 R.sub.9, wherein R.sub.8 is hydrogen or alkyl, and R.sub.9 is hydrogen, alkyl or --COR.sub.7, or R.sub.8 and R.sub.9 together with the nitrogen atom to which they are bonded form a ring,(4) --P(O)(OR.sub.10 ')([O].sub.x R.sub.Type: GrantFiled: June 18, 1982Date of Patent: February 7, 1984Assignee: Ciba-Geigy AGInventor: David G. Leppard
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Patent number: 4419431Abstract: This invention relates to a one- or two-component diazo-type material with improved light stability and duplication capabilities. This is accomplished by using compounds of the general formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 being the same or different, represent hydrogen, alkyl with 1 to 5 carbon atoms, R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4 represent the alkyl groups necessary for completion of a 5- or 6-membered heterocyclic ring, wherein the ring may comprise a further hetero atom, such as N, O or S;R.sub.5, R.sub.6 being the same or different, represent hydrogen, aryl, alkyl with 1 to 4 carbon atoms;Y represents --S--, --SO--, --SO.sub.2 --; andn is 0, 1, 2, 3,which are added to the material as fading inhibitors. These compounds can be easily synthesized and are compatible with the system, having an absorption maximum below 380 nm and reduced fogging tendency. They may also be employed in the form of their hydro salts.Type: GrantFiled: November 30, 1981Date of Patent: December 6, 1983Assignee: VEB Filmfabrik WolfenInventors: Regina Lischewski, Jorg Marx, Reinhard Walter, Peter Mockel
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Patent number: 4418140Abstract: A process for the development of color photographic light-sensitive material is described. The process comprises color developing an exposed light-sensitive material in the presence of a compound of the general formula: ##STR1## wherein M is a hydrogen atom, an alkali metal atom, NH.sub.4 or a protective group for the mercapto group which undergoes cleavage by the action of an alkali; R is a hydrogen atom or an alkyl group containing 1 to 3 carbon atoms; and R' is a hydrogen atom or an alkyl group containing 1 to 3 carbon atoms. This process prevents the formation of color development fog without seriously reducing sensitivity.Type: GrantFiled: April 8, 1982Date of Patent: November 29, 1983Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroyuki Mifune, Shoji Ishiguro, Tadao Shishido, Tatsuo Nishimura
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Patent number: 4416970Abstract: Image transfer photographic assemblages, processes, compositions and cover sheets are described which employ a manganous compound. After processing, the manganous compound is capable of diffusing to the silver halide emulsion layer and a redox dye-releaser associated therewith to inhibit further dye release. Post-process D.sub.min stability is thereby improved.Type: GrantFiled: September 29, 1982Date of Patent: November 22, 1983Assignee: Eastman Kodak CompanyInventor: Thomas O. Maier
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Patent number: 4409320Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing a magenta color image forming polymer coupler latex which is capable of forming a dye upon coupling with an oxidation product of an aromatic primary amine developing agent and which is a polymer or copolymer having a repeating unit derived from a monomer represented by the following general formula (I) ##STR1## wherein R represents a hydrogen atom, a lower alkyl group containing from 1 to 4 carbon atoms or a chlorine atom; and X represents a halogen atom, an acylamino group, a carbamoyl group, a sulfonamido group, a sulfamoyl group, a cyano group or an alkoxycarbonyl group and which is present at the 4-position or 5-position of the phenyl group.Type: GrantFiled: May 10, 1982Date of Patent: October 11, 1983Assignee: Fuji Photo Film Co., Ltd.Inventors: Morio Yagihara, Tsumoru Hirano, Keiji Mihayashi, Takashi Ozawa
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Patent number: 4407932Abstract: Method of preparing a fade-resistant and abrasion-resistant colored photographic image and a novel color photographic paper therefor. A photograph on the paper is coated with adhesive, bonded to a substrate and the paper backing stripped away, leaving a low density polyethylene foil covering the reversed image.Type: GrantFiled: January 4, 1982Date of Patent: October 4, 1983Assignee: Minnesota Mining & Manufacturing Co.Inventors: Harry A. Loder, Charles A. Mathna
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Patent number: 4396698Abstract: A loaded polymer latex composition is disclosed. The composition comprises an aqueous polymer latex whose dispersed phase is made up of a specified cross-linked quaternary salt polymer loaded with a specified hydrophobic substance. The latex composition can be advantageously employed as a mordant polymer in a photographic element for a color diffusion transfer process. Use of the latex improves light resistance without lowering the maximum densities of the film images.Type: GrantFiled: June 8, 1982Date of Patent: August 2, 1983Assignee: Fuji Photo Film Co., Ltd.Inventors: Yukio Karino, Masakazu Morigaki, Shinji Sakaguchi
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Patent number: 4388404Abstract: A silver halide color photographic light-sensitive material is described containing a magenta color image forming polymer coupler latex and at least one compound represented by the following general formula (I) ##STR1## wherein R represents an alkyl group; and R.sub.1 and R.sub.2 each represents a tertiary alkyl group and R.sub.1 and R.sub.2 may be the same or different. The disclosed silver halide color photographic light-sensitive material has good film strength, a reduced layer thickness and provides a stable magenta image having an improved sharpness and fastness to light while preventing the formation of yellow stain in non-image areas. A method of forming a color image using the silver halide color photographic light-sensitive material is also described.Type: GrantFiled: April 19, 1982Date of Patent: June 14, 1983Assignee: Fuji Photo Film Co., Ltd.Inventors: Masakazu Morigaki, Morio Yagihara, Takashi Ozawa
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Patent number: 4386155Abstract: Colored images consisting of metal-complexed azomethine dyes are prepared by chromogenic development of silver halide photographic recording materials in the presence of color couplers. The color developers contain a grouping capable of metal chelate formation adjacent to the primary amino group. The azomethine dyes are transferred into the corresponding azomethine dye/metal complexes. The complex formation is accompanied by shift of color hue and increase of light stability.Type: GrantFiled: September 3, 1981Date of Patent: May 31, 1983Assignee: Agfa-Gevaert AGInventors: Peter Bergthaller, Friedrich-Wilhelm Kunitz, Karl-Wilhelm Schranz, Erich Wolff
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Patent number: 4385110Abstract: A process for preparing a color photographic light-sensitive material, which comprises incorporating at least one oil soluble photographic additive into a hydrophilic colloid aqueous solution by dispersing in the presence of an anionic surface active agent having one or more hydrocarbon chain(s), at least one of which is a hydrophobic hydrocarbon chain of 4 to 18 carbon atoms wherein the hydrogen atoms of one or more of the hydrocarbon chain(s) are wholly or partly substituted with fluorine, and having 1 to 3 --SO.sub.3 M or OSO.sub.3 M groups (M being a hydrogen atom or a cation) as an anionic moiety.Type: GrantFiled: August 26, 1981Date of Patent: May 24, 1983Assignee: Fuji Photo Film Co., Ltd.Inventors: Maskazu Yoneyama, Takeshi Mikami, Nobuo Tsuji
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Patent number: 4383027Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing at least one coupler represented by the following general formula (I): ##STR1## The substituents are disclosed in the specification. The silver halide color photographic light-sensitive material in which a specific class of 1-phenyl-3-anilono-4-phyenylthio-5-pyrazolone type two-equivalent magenta color image forming couplers and a specific class of 1-phenyl-3-pyrazolidone derivatives are used in association with each other can provide a magenta color image of high sensitivity without increasing the fog level. A method for developing the material is also disclosed.Type: GrantFiled: June 23, 1982Date of Patent: May 10, 1983Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Masakazu Morigaki, Takashi Nakamura, Nobuo Furutate
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Patent number: 4367272Abstract: A photographic print prepared by a color diffusion transfer process comprising at least a support, a mordant layer containing therein a diffusion transfer dye image, and a white reflection layer constituting the background of the dye image and containing therein at least one compound represented by formula (I): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 may be the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, an aralkyloxy group, an alkenyl group, an alkenyloxy group, an alkylthio group, an arylthio group, an acyl group, an acylamino group, a diacylamino group, an alkylamino group, a sulfonamido group, an acyloxy group, an alkoxycarbonyl group, or an aryloxycarbonyl group, and A represents a non-metallic atom group necessary for forming a 5- or 6-membered ring.Type: GrantFiled: April 28, 1981Date of Patent: January 4, 1983Assignee: Fuji Photo Film Co., LtdInventors: Hiroshi Hayashi, Tsutomu Hamaoka, Masakazu Morigaki
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Patent number: 4366226Abstract: A color photographic silver halide light-sensitive material is described comprising a compound represented by formula (I) ##STR1## wherein R.sup.1 and R.sup.3 can each represent an unsubstituted or substituted alkyl group or an unsubstituted or substituted aryl group, R.sup.2 can represent an unsubstituted or substituted alkyl group, R.sup.4 and R.sup.5 can each represent a hydrogen atom, an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryloxy group, an unsubstituted or substituted alkylthio group, an unsubstituted or substituted arylthio group, a halogen atom, or an acylamino group, and R.sup.1 and R.sup.2, R.sup.1 and R.sup.4, or R.sup.2 and R.sup.5 together can represent atoms forming a condensed ring structure together with the benzene ring of formula (I), provided that the total of carbon atom numbers in R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 is at least 16.Type: GrantFiled: July 22, 1981Date of Patent: December 28, 1982Assignee: Fuji Photo Film Co., Ltd.Inventors: Tsutomu Hamaoka, Osamu Takahashi, Tooru Harada, Minoru Sakai, Nobutaka Ohki
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Patent number: 4358534Abstract: A silver halide color photographic light-sensitive material is described comprising a support and at least one light-sensitive silver halide emulsion layer having a coupler incorporated therein and at least one light-insensitive hydrophilic colloidal layer, whereby color mixing and color stain (color fog) phenomena are prevented from occurring at the time of color development, said light-insensitive hydrophilic colloidal layer(s) containing a polymer having a repeating unit represented by formula (I) ##STR1## wherein R represents a hydrogen atom, an alkyl group containing from 1 to 6 carbon atoms, or a halogen atom; M represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, or an organic base group; X represents an alkyl group containing from 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an alkylamino group having 1 to 6 carbon atoms, or a halogen atom; m represents 0, 1 or 2; and n represents 1 or 2.Type: GrantFiled: October 27, 1981Date of Patent: November 9, 1982Assignee: Fuji Photo Film Co., Ltd.Inventors: Noboru Sasaki, Hidefumi Sera, Nobutaka Ohki, Jun Yamaguchi
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Patent number: 4356250Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ redox dye-releasing materials and a zinc salt, such as zinc oxide, in such a form, location and concentration that it will be diffusible in the element during processing, and the dye which is released from the redox dye-releasing material during processing will have an increased stability to light exposure. The zinc salts may be incorporated in the photosensitive portion of a photosensitive element, a processing composition or a cover sheet.Type: GrantFiled: January 12, 1981Date of Patent: October 26, 1982Assignee: Eastman Kodak CompanyInventors: Nayyir F. Irani, Thomas O. Maier
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Patent number: 4353979Abstract: A silver halide photographic material containing a solution of a 5-pyrazolone type magneta coupler and a high-boiling organic solvent of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each represent an aliphatic or aromatic group with a carbon atom of R.sub.3 directly bonded to the phosphorus atom.Type: GrantFiled: July 16, 1980Date of Patent: October 12, 1982Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Sadatugu Terada, Hideaki Arai, Kenji Itoh, Hiroshi Sugita, Katsumi Matsuura, Thuneo Wada
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Patent number: 4346165Abstract: A process for improving the light fastness of a magenta color image which comprises introducing a specific complex and a specific discoloration prevention aid into a layer bearing the magenta color image.Type: GrantFiled: January 19, 1981Date of Patent: August 24, 1982Assignee: Fuji Photo Film Co., Ltd.Inventors: Satoru Sawada, Shigeru Oono, Nobuo Seto, Yoshiaki Suzuki, Kotaro Nakamura, Nobuo Furutachi
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Patent number: 4343886Abstract: A dye image stabilization process for color photographic sensitive elements which comprises processing a color photographic sensitive element containing at least one dye image stabilizer precursor with a solution containing divalent ions of at least one metal selected from Cu, Co, Ni, Pd and Pt is disclosed. Light fastness of dye images is thus improved.Type: GrantFiled: October 17, 1980Date of Patent: August 10, 1982Assignee: Fuji Photo Film Co., Ltd.Inventors: Kotaro Nakamura, Seiiti Kubodera, Satoru Sawada, Hiroshi Hara, Yoshiaki Suzuki, Shigeru Oono
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Patent number: 4339515Abstract: Compounds containing the group ##STR1## are useful in photographic materials for preventing fading of dye images.Type: GrantFiled: September 4, 1980Date of Patent: July 13, 1982Assignee: AGFA-Gevaert AktiengesellschaftInventors: Karl-Wilhelm Schranz, Johannes Sobel
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Patent number: 4336324Abstract: A method of stabilization using a plurality of baths which are replenished by a multi-stage counterflow system with the final bath having a pH of from 2.0 to 6.5.Type: GrantFiled: June 12, 1981Date of Patent: June 22, 1982Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeharu Koboshi, Masayuki Kurematsu
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Patent number: RE31514Abstract: Propyne compounds, which are capable of stabilizing photographic materials against color fog and flattening of the gradation are disclosed. They may be added to emulsion layers and to processing baths.Type: GrantFiled: August 4, 1982Date of Patent: January 31, 1984Assignee: Agfa-Gevaert AktiengesellschaftInventors: Gerhard Jager, Anita von Konig, Armin Voigt, Karl H. Buchel