Hardening Ingredient Containing Patents (Class 430/621)
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Patent number: 4914007Abstract: An image forming process is disclosed, which comprises, in the photographic processing of silver halide color photographic materials, processing the color photographic material having a swelling degree of the photographic layer(s) of from 1.5 to 4.0 in the water washing step for the total water washing processing time of from 30 to 90 seconds. According to the process of the invention, the storage stability of color images obtained after processing and/or after lapsing a time does not reduce even when the water washing processing time is shortened.Type: GrantFiled: November 7, 1988Date of Patent: April 3, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshihiro Fujita, Takatoshi Ishikawa
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Patent number: 4912026Abstract: A light-sensitive silver halide photographic material having a support with at least one silver halide emulsion layer containing a dye-forming coupler, where the light-sensitive silver halide photographic material is characterized in that at least one of the silver halide emulsion layers contains (i) the dye-forming coupler dispersed with the use of a high boiling organic solvent having a dielectric constant of 6.0 or less, (ii) silver halide grains containing a gold compound and having silver chloride content of 90 mole % or more, and (iii) a compound represented by General Formula (S) shown below. General Formula (S): ##STR1## where Q is a group of atoms necessary to complete a 5- or 6-membered heterocyclic ring or a 5- or 6-membered ring fused with a benzene ring and M is a hydrogen atom, an alkali metal or an ammonium group.Type: GrantFiled: March 23, 1989Date of Patent: March 27, 1990Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masanobu Miyoshi, Makoto Kajiwara, Kaoru Onodera, Eiichi Sakamoto
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Patent number: 4906560Abstract: In order to be able to cast additional layers on auxiliary layers of photographic materials immediately after the latter have been cast without encountering any difficulties as regards uniformity of the cast layer and wet adherence due to incomplete conversion of the gelatine from the sol to the gel form, the auxiliary layer must contain an effective quantity of at least one compound obtained by the reaction of trihydric to hexahydric alcohols with propylene oxide.Type: GrantFiled: October 11, 1988Date of Patent: March 6, 1990Assignee: Agfa-Gevaert AktiengesellschaftInventors: Fritz Nittel, Wolfgang Himmelmann, Rudolf Tromnau, Erich Muller
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Patent number: 4897344Abstract: A method of hardening gelatin comprising adding to the gelatin to be hardened at least one compound represented by formula (I) ##STR1## wherein L represents a divalent organic group, R represents a hydrogen atom or a univalent organic group, A represents a substituted or unsubstituted benzene ring which may be condensed with another ring, M.sup..sym. represents a hydrogen ion, an alkali metal ion or an ammonium ion, and n has a value of 1 or 2 or 3. The method may be applied to various processes involving hardening of gelatin, such as processes for forming various photographic materials or microcapsules.Type: GrantFiled: March 30, 1988Date of Patent: January 30, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okamura, Hiroshi Kawamoto, Hiroshi Kawasaki
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Patent number: 4897340Abstract: A silver halide photographic material is disclosed which has at least one hydrophilic colloidal layer on a support, said photographic material having a water content of 10-20 g/m.sup.2 at the time when the washing step of processing with a roller transport type automatic processor is completed.Type: GrantFiled: December 5, 1988Date of Patent: January 30, 1990Assignee: Konica CorporationInventors: Shinichi Ohtani, Teruo Kashino, Katsushi Fujita, Akio Suzuki, Eiji Yoshida, Satoru Nagasaki
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Patent number: 4891304Abstract: A silver halide photographic material comprising a support having provided thereon at least one silver halide emulsion layer containing a compound represented by formula (I): ##STR1## wherein EAG represents an aromatic group bonding to N.sub.A and capable of accepting an electron;N.sub.A and N.sub.B each represents a nitrogen atom;R.sup.1 represents a lone pair, a .pi.-bond, a .sigma.-bond, or a substituent other than a hyudrogen atom;n represents 2 or 3;m represents 0 when n represents 2, or m represents 1 and N.sub.B has a positive charge when n represents 3;X.sup..crclbar. represents an anion;the groups or bonds represented by R.sup.1 may be combined with each other or may be combined with EAG to form a ring;R.sup.2 represents R.sup.3 --CO--, R.sup.3 --SO.sub.2 --, R.sup.3 --CO--N.dbd.CH--, or R.sup.3 --SO.sub.2 --N.dbd.CH--, wherein R.sup.3 represents an alkyl group, an aryl group, or a heterocyclic group;the group represented by R.sup.2 may be combined with at least one of R.sup.Type: GrantFiled: March 30, 1989Date of Patent: January 2, 1990Assignee: Fuji Photo Film Co., Ltd.Inventor: Koki Nakamura
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Patent number: 4879209Abstract: The present invention provides a method of hardening a proteinaceous layer of a photographic silver halide element by incorporating a modified dextran in said proteinaceous layer, said modified dextran being the reaction product of dextran and an alkyl haloformate, a substituted alkyl haloformate, an aryl haloformate, or a substituted aryl haloformate. The invention also provides a photographic element comprising a said reaction product in at least one proteinaceous silver halide emulsion layer and/or in another proteinaceous layer coated thereon.Type: GrantFiled: December 15, 1987Date of Patent: November 7, 1989Assignee: AGFA-GEVAERT, N.V.Inventors: Joan T. Vermeersch, Daniel Timmerman, Hubert Vandenabeele, Jacques L. Vervecken
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Patent number: 4877724Abstract: A method for hardening gelatin comprising combining the gelatin to be hardened with a compound of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, and X.sup..THETA. are as herein defined. The compounds of this formula effectively harden gelatin with little or no after-hardening. These compounds are useful in hardening gelatin in photographic elements.Type: GrantFiled: August 31, 1988Date of Patent: October 31, 1989Assignee: Eastman Kodak CompanyInventors: Chung Y. Chen, Edgar E. Riecke, Kenneth G. Harbison, Derek D. Chapman
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Patent number: 4874687Abstract: A method for forming an image comprising the steps of:(a) imagewise exposing a light-sensitive silver halide photographic material comprising a support having provided on at least one surface thereof a light-sensitive silver halide emulsion, at least one of an active halogen hardening agent and a bisvinylsulfone hardening agent, and a slightly water-soluble basic metallic compound; and(b) developing said exposed material with a developer solution containing a compound capable of reacting with said basic metallic compound to release a base.Type: GrantFiled: November 18, 1987Date of Patent: October 17, 1989Assignee: Fuji Photo Film Co., Ltd.Inventor: Masamichi Itabashi
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Patent number: 4865940Abstract: A color photographic recording material contains a dispersion of hardened particles of a complex coacervate (packet emulsion) in at least one layer of binder, which particles are hardened with a hardener corresponding to the following formula I ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and each denotes an alkyl group with 1 to 8 carbon atoms or an aryl or aralkyl group optionally substituted with an alkyl group having 1 or 2 carbon atoms or with a halogen atom or R.sup.1 and R.sup.2 together denote the atoms required for completing a heterocyclic ring, e.g. a piperidine or morpholine ring, optionally substituted with an alkyl group having 1 or 2 carbon atoms or with a halogen atom,R.sup.3 denotes a hydrogen atom or an alkyl group having 1 or 2 carbon atoms andn represents 0 or 2.Type: GrantFiled: February 9, 1989Date of Patent: September 12, 1989Assignee: Agfa-Gevaert AktiengesellschaftInventors: Karl-Wilhelm Schranz, Gunther Schenk
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Patent number: 4863841Abstract: A silver halide color photographic material comprising a support having thereon at least one photosensitive silver halide emulsion layer, wherein a 5-pyrazolone type 2-equivalent coupler is present in the photosensitive silver halide emulsion layer or a layer adjacent thereto and a hardening agent which acts by activating a carboxy group is present in a photosensitive or non-photosensitive photographic layer of the silver halide color photographic material.Type: GrantFiled: February 13, 1989Date of Patent: September 5, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okamura, Hidetoshi Kobayashi, Toshihiro Nishikawa, Koji Tamoto
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Patent number: 4861702Abstract: A silver halide photographic light-sensitive material and a process for processing it are disclosed. The light-sensitive material is improved in photographic sensitivity, drying property and anti-roller-mark property and is suitable for the disclosed ultra-rapid processing by an automatic processor in which the photographic material is processed for the time of 20 sec to 60 sec in total. The light-sensitive material comprises a support having on at least one side thereof one or more hydrophilic layers containing gelatin which comprise at least one light-sensitive silver halide emulsion layer. An amount of the gelatin contained in said hydrophilic layer or layers is within the range of from 1.90 to 3.50 g/m.sup.2 and a swelling amount of said hydrophilic layer or layers is within the range of from 30 to 58 g/m.sup.2 when said light-sensitive material is treated in a specific condition for 15 sec. at 35.degree. C.Type: GrantFiled: January 11, 1989Date of Patent: August 29, 1989Assignee: Konica CorporationInventors: Akio Suzuki, Eiji Yoshida, Satoru Nagasaki, Masumi Arai, Nobuaki Tsuji
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Patent number: 4847189Abstract: A silver halide photographic material is capable of super-rapid processing with the total time of 20 to 60 minutes and is high in sensitivity, low in fogginess and excellent in pressure resistance and graininess. The photographic material is comprises a support bearing a hydrophilic colloial layer including at least one light sensitive silver halide emulsion layer thereon, whereinsilver halide grains contained in the silver halide emulsion layer are mainly comprised of tabular grains which have an aspect ratio of the grain size to the grain thickness of not lower than 5, and the projective areas of the whole tabular grain occupy not less than 50% of the projective areas of the whole silver halide grain in the emulsion layer,the melting time of the silver halide photographic light-sensitive material is within the range of from not shorter than 45 minutes, andon the side bearing the hydrophilic colloidal layer containing the silver halide emulsion layer, an amount of gelatin is within the range of from 2.Type: GrantFiled: March 9, 1988Date of Patent: July 11, 1989Assignee: Konica CorporationInventors: Akio Suzuki, Eiji Yoshida, Satoru Nagasaki, Masumi Arai, Nobuaki Tsuji
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Patent number: 4837143Abstract: A silver halide photographic light-sensitive material comprising a support bearing at least one silver halide emulsion layer is disclosed. The silver halide emulsion layer contains silver halide grains comprising not less than 80 mol% of silver chloride and a water soluble iridium compound in an amount of from 10.sup.-8 to 10.sup.-5 mol per mol of a silver halide contained in the emulsion layer. And the emulsion layer is hardened with a hardner represented by General Formula [I] or [II]. ##STR1## The photographic material has an excellent antipressure property and suitable for a rapid processing.Type: GrantFiled: December 29, 1988Date of Patent: June 6, 1989Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kazuo Komorita, Kaoru Onodera
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Patent number: 4837135Abstract: An electron beam recording film comprising a support bearing, in order,(A) a sputtered layer of indium-ion oxide, and(B) a gelatino silver halide emulsion layer, e.g., silver iodobromide, crosslinked with 2 to 10% by weight based on the weight of gelatin in the emulsion layer of a Cr.sup.+3 -containing compound, e.g., chrome alum, chromic choloride, etc.Optionally other layers can be present in the film, e.g., crosslinked gelatin overcoat, subbing layer on support, titanium oxide layer on the indium-tin oxide layer.Type: GrantFiled: August 13, 1987Date of Patent: June 6, 1989Assignee: E. I. Du Pont de Nemours and CompanyInventor: Clifford E. Milner
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Patent number: 4826757Abstract: A process for processing silver halide photographic materials by processing, after development and fixing, the silver halide photographic materials with wash water or a stabilizing solution using a replenisher thereof of not more than 2 liters (including 0) per square meter of the photographic material and drying using a roller transporting type automatic processor, wherein the swelling percentage of the silver halide photographic material is not more than 200% and the total processing time from development to drying is not longer than 70 seconds.Type: GrantFiled: March 18, 1988Date of Patent: May 2, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Minoru Yamada, Kunio Seto
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Patent number: 4820613Abstract: The present invention provides a method of hardening a proteinaceous surface layer of a photographic silver halide element by incorporating a dextran derivative in said proteinaceous surface layer, said dextran derivative being the reaction product of dextran and an epihalohydrin. The invention also provides a photographic element comprising at least one silver halide emulsion layer and at least one proteinaceous surface layer comprising the reaction product of dextran and an epihalohydrin.Type: GrantFiled: July 29, 1987Date of Patent: April 11, 1989Assignee: Agfa-Gevaert, N.V.Inventors: Joan T. Vermeersch, Hubert Vandenabeele, Jacques L. Vervecken, Daniel M. Timmerman
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Patent number: 4762759Abstract: An image-receiving material adapted for silver complex diffusion transfer processing and for forming a laminate, e.g. serving as an identification document, wherein said material comprises a hydrophobic resin support or resin-coated paper support directly coated on a resin surface thereof with a DTR-image receiving layer containing developing nuclei in a binder medium and comprising in percent by weight on its total weight the following ingredients:2% to 45% of gelatin,25% to 85% of colloidal silica,1.0% to 50% of a copolymer consisting of copolymerized ethylene and an alpha,beta-unsaturated carboxylic acid monomer in free acid or salt form, wherein the polymerized ethylene content is not lower than 80% by weight, and0.2% to 35% of a siloxane forming a reaction product through its siloxane group with the colloidal silica, the dry coverage of the image-receiving layer being in the range of 1 g to 15 g per m2.Type: GrantFiled: November 7, 1986Date of Patent: August 9, 1988Assignee: AGFA-Gevaert N.V.Inventors: Leon L. Vermeulen, Ludovicus H. Vervloet, Willy P. De Smedt, Piet Kok
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Patent number: 4751173Abstract: A process for hardening gelatin, which comprises incorporating in a gelatin-containing material at least one hardening compound represented by formula (I) ##STR1## wherein R.sup.1 represents a substituted or unsubstituted aryl group, Z represents non-metallic atoms necessary for the formation of a nitrogen-containing heteroaromatic ring which may optionally be substituted, X.sup..crclbar. represents an anion, and n represents 0 or 1 provided that when n represents 0, the compound forms an inner salt. The gelatin hardeners can rapidly harden gelatin with little or no post-hardening and react with reactive groups of gelatin with high selectivity.Type: GrantFiled: December 29, 1986Date of Patent: June 14, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okamura, Hiroshi Kawamoto
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Patent number: 4743525Abstract: Disclosed is a lithographic printing plate material which comprises a support and at least an undercoat layer, a silver halide emulsion layer and a catalytic layer containing physical development nuclei provided in this order on said support and which utilizes silver complex diffusion transfer process, wherein content of calcium ion in at least one of lime treated gelatin-containing layers is 1000 ppm or less.Type: GrantFiled: October 24, 1986Date of Patent: May 10, 1988Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Kazuyoshi Yamamoto, Eiji Kanada, Kyonosuke Yamamoto, Satoshi Katano
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Patent number: 4731322Abstract: A light-sensitive silver halide photographic material for X-ray photography characterized in that the material has the characteristic curve whose gamma between optical densities of 0.50 and 1.50 is 2.7 to 3.3 and gamma between optical densities of 2.00 and 3.00 is 1.5 to 2.5, when processed by use of the following developer:______________________________________ Potassium sulfite 55.0 g Hydroquinone 25.0 g 1-Phenyl-3-pyrazolidone 1.2 g Boric acid 10.0 g Potassium hydroxide 21.0 g Triethylene glycol 17.5 g 5-Methylbenztriazole 0.04 g 5-Nitrobenzimidazole 0.11 g 1-Phenyl-5-mercaptotetrazole 0.015 g Glacial acetic acid 16.0 g Potassium bromide 4.0 g Add water to make up one liter.Type: GrantFiled: July 29, 1986Date of Patent: March 15, 1988Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Akio Suzuki, Masatoshi Iwata, Katsutoshi Machida, Chika Honda
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Patent number: 4717642Abstract: A process for improving adhesion between photographic layers of a photographic element comprising a support having provided thereon at least(1) a first photographic layer comprising a high molecular weight compound having a functional group capable of reacting with an isocyanate group and(2) a second photographic layer comprising a high molecular weight compound having a functional group capable of reacting with an isocyanate group which compound is different from the high molecular weight compound of said first layer,which process comprises coating from 2 to 20 ml/m.sup.2 of a solution containing a polyisocyanate compound having at least two isocyanate groups on the first photographic layer, drying said solution, and then coating the second photographic layer.Type: GrantFiled: April 25, 1986Date of Patent: January 5, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshihiro Watanabe, Hideki Tomiyama
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Patent number: 4684604Abstract: Photographic elements and processes are described which employ a compound containing a hydrazide moiety attached by a linking group, comprising an acidic group or an active methylene group adjacent to an acidic group, to a heteroatom of a moiety containing a photographically useful group comprising a photographic dye or precursor thereof or a photographic reagent; wherein:(a) the hydrazide moiety is capable of being oxidized to an azo group by an oxidized developing agent,(b) the azo group formation causes the release of the photographically useful group, and(c) the released photographically useful group does not contain the linking group or the nitrogen atoms of the hydrazide moiety.Type: GrantFiled: April 24, 1986Date of Patent: August 4, 1987Assignee: Eastman Kodak CompanyInventor: John W. Harder
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Patent number: 4673632Abstract: A hardening method for gelatin which comprises using as a hardening agent a compound represented by formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 each represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted aryl group; or two of said R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are combined with each other to form a ring (1); or 3 or more of said R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are combined with each other to form a condensed ring (2); X represents a group capable of being released when the compound shown by formula (I) reacts with a nucleophilic reagent; Y.sup..crclbar. represents an anion; or Y.sup..crclbar. is combined with one of X, R.sup.1, R.sup.2, R.sup.3, and R.sup.4, ring (1), or ring (2) to form an anionic portion of an intramolecular salt.Type: GrantFiled: April 23, 1985Date of Patent: June 16, 1987Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okamura, Hiroshi Kawamoto, Hisashi Shiraishi
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Patent number: 4670377Abstract: A silver halide photographic light-sensitive material comprising a support bearing thereon a photographic layer comprising a light-sensitive silver halide emulsion layer and a non-light-sensitive hydrophilic colloidal layer; wherein at least one of the photographic layers is hardened by a vinylsulfone hardener, and at least one layer selected from the group consisting of the photographic layers each hardened by the vinylsulfone hardener and the other photographic layers is hardened by a triazo compound, and further at least one of the silver halide emulsion layers contains silver halide particles which are spectrally sensitized by one of certain sensitizing dyes.Type: GrantFiled: October 21, 1985Date of Patent: June 2, 1987Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masanobu Miyoshi, Shun Takada, Kaoru Onodera
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Patent number: 4668616Abstract: A method for hardening gelatin is disclosed, which comprises incorporating in a gelatin-containing material at least one compound represented by formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 each represents an alkyl group, an alkenyl group, an aralkyl group, or an aryl group, or any two of R.sup.1 R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 are bound to each other to form a ring, or any three or more of them are bound to each other to form a condensed ring, X represents a group capable of being eliminated when the compound represented by formula (I) reacts with a nucleophilic reagent, and Y.crclbar. represents an anion.Type: GrantFiled: November 22, 1985Date of Patent: May 26, 1987Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okamura, Hiroshi Kawamoto
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Patent number: 4647528Abstract: A silver halide photographic material having on a support at least one silver halide emulsion layer which contains light-sensitive tabular silver halide grains, with a ratio of grain diameter to grain thickness of 5 or more and a polymeric hardener. The silver halide photographic material has both increased covering power and scratching resistance, and is suitable for high-temperature rapid development processing.Type: GrantFiled: September 17, 1984Date of Patent: March 3, 1987Assignee: Fuji Photo Film Co., Ltd.Inventors: Sumito Yamada, Taku Nakamura, Shuzo Suga, Hiroshi Kawamoto
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Patent number: 4619884Abstract: Photographic elements and assemblages are described which employ nondiffusible N',N'-diaromatic carbocyclic--or diaromatic heterocyclic--sulfonohydrazide compounds which are capable of releasing photographically useful groups in an imagewise manner as a function of silver halide development.Type: GrantFiled: July 29, 1985Date of Patent: October 28, 1986Assignee: Eastman Kodak CompanyInventor: Stephen P. Singer
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Patent number: 4618573Abstract: A silver halide color photographic material containing a hardener capable of exerting a hardening effect through activation of a carboxyl group and a magenta coupler of the pyrazoloazole type, whereby lowering of color density of magenta images due to use of rapidly acting hardeners can be prevented.Type: GrantFiled: May 10, 1985Date of Patent: October 21, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okamura, Hidetoshi Kobayashi, Toshihiro Nishikawa, Koji Tamoto
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Patent number: 4612280Abstract: A hardened gelatin and a method for obtaining the hardened gelatin are described, using at least one compound represented by formula (I) ##STR1## wherein all symbols are as defined in the appended claims. The compounds of formula (I) are high in hardening speed and cause little or no post-hardening. Thus these compounds are very useful, for example, in preparation of a light-sensitive material.Type: GrantFiled: October 21, 1985Date of Patent: September 16, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okamura, Hiroshi Kawamoto
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Patent number: 4609610Abstract: Photographic elements and assemblages are described which employ nondiffusible compounds which release photographically useful groups in an imagewise manner as the result of a .beta.-elimination reaction.Type: GrantFiled: August 1, 1985Date of Patent: September 2, 1986Assignee: Eastman Kodak CompanyInventors: Richard P. Dunlap, Thomas E. Gompf
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Patent number: 4600687Abstract: A photographic light-sensitive material having at least one layer containing a polymer having a repeating unit of the formula (I): ##STR1## wherein A is a monomer unit prepared by copolymerizing copolymerizable ethylenically unsaturated monomers; R.sub.1 is hydrogen or a lower alkyl group having 1 to 6 carbon atoms; Q is ##STR2## (wherein R.sub.1 is the same as defined above) or an arylene group having 6 to 10 carbon atoms; L is a divalent group having 3 to 15 carbon atoms and containing at least one linking group selected from the members consisting of ##STR3## (wherein R.sub.1 is the same as defined above) or a divalent group having 1 to 12 carbon atoms and containing at least one linking group selected from the members consisting of ##STR4## (wherein R.sub.1 is the same as defined above); R.sub.2 is --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.Type: GrantFiled: April 22, 1985Date of Patent: July 15, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Taku Nakamura, Mitsunori Hirano, Masasi Ogawa, Kunio Ishigaki
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Patent number: 4594316Abstract: A silver halide photographic light-sensitive material is described, comprising a support having provided thereon at least one light-sensitive silver halide emulsion layer associated with a substantially immobile, positive one-equivalent redox compound capable of releasing a photographically useful compound or a precursor thereof as a result of a redox reaction, said compound being represented by formula (I) ##STR1## wherein Acp represents an anion center precursor capable of causing --Z--Q to be released by a quinonemethide type releasing reaction when being reduced R.sup.1 and R.sup.Type: GrantFiled: October 15, 1984Date of Patent: June 10, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyoshi Morimoto, Keizo Furuya, Masaharu Toriuchi
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Patent number: 4590151Abstract: Reticulation caused by swelling with processing solutions in photographic elements is reduced for elements containing at least two contiguous gelatin-containing layers wherein the uppermost layer has a lateral swell coefficient at least 10% greater than the lower gelatin-containing layer before polymer addition and wherein said uppermost layer comprises an essentially non-diffusible vinyl polymer having reactive groups which crosslink by reaction with primary amine or secondary amine groups on gelatin or a water-soluble, non-diffusible amine containing vinyl polymer and a hardener for gelatin. These elements are particularly useful in photographic products.Type: GrantFiled: November 29, 1982Date of Patent: May 20, 1986Assignee: Eastman Kodak CompanyInventors: Thomas C. Arter, Ignazio S. Ponticello
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Patent number: 4554247Abstract: A silver halide photographic material having as essential photographic layers at least one photosensitive silver halide emulsion layer and at least one non-sensitive hydrophilic colloidal layer on a support is disclosed. At least one of said photographic layers contains fine oil globules at a density of 1 or more, and a hardener having at least three functional groups is incorporated in at least one photographic layer containing said fine oil globules and/or at least one photographic layer which is farther from said support than the photographic layer containing said fine oil globules.Type: GrantFiled: February 13, 1984Date of Patent: November 19, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kiyotoshi Yamashita, Minoru Ishikawa, Hideo Ohta, Kenji Kumashiro
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Patent number: 4533623Abstract: A silver halide photographic light-sensitive material for plate making is disclosed. The material is comprised of a support base having thereon a sensitive silver halide emulsion layer and at least one upper insensitive layer having a melting time longer than the melting time of the sensitive silver halide emulsion layer. A method of reduction treatment for such silver halide light-sensitive material is also disclosed. The sensitive materials have excellent aptitude for reduction treatment and do not deteriorate even if the amount of silver per unit area is relatively small.Type: GrantFiled: September 7, 1984Date of Patent: August 6, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Yukihide Urata, Shigenori Moriuchi, Taku Nakamura, Masashi Ogawa
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Patent number: 4510237Abstract: A hardened photographic film is formed as a result of in situ generation of hardener by incorporating an aldehyde bisulfite in one layer and a nonhardening aldehyde in an adjacent layer. Preferred aldehyde bisulfite is glutaraldehyde bisulfite and preferred nonhardening aldehyde is orthosulfobenzaldehyde.Type: GrantFiled: October 11, 1983Date of Patent: April 9, 1985Assignee: E. I. Du Pont de Nemours and CompanyInventor: Reginald A. Booker
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Patent number: 4510228Abstract: Disclosed is a photosensitive element for the production of lithographic printing plates improved in printing endurance comprising a support, a physical development nuclei layer, and at least one gelatin-containing layer including a silver halide emulsion layer disposed under said nuclei layer, which is adapted to the silver complex diffusion transfer process to utilize the transferred silver image on said nuclei layer as ink-receptive areas, all of the gelatin-containing layers having a pH value below the isoelectric point of the gelatin used in each layer. Further improvement can be attained by using a photographic gelatin and a low molecular weight gelatin in at least one of said gelatin-containing layers.Type: GrantFiled: April 20, 1983Date of Patent: April 9, 1985Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Yasuo Tsubai, Yoshikazu Takaya, Eiji Kanada
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Patent number: 4508818Abstract: A silver halide photographic sensitive material is disclosed. The material is comprised of a support base which has a sensitive silver halide emulsion layer on the surface of the base. On the silver halide emulsion layer is a first and a second insensitive layer. The second insensitive layer has a melting time which is higher than that of the first insensitive layer. The first insensitive layer has a melting time which is equal to or higher than the melting time of the silver halide emulsion layer. The resulting material can be advantageously utilize within an automatic developing apparatus. The material has improved mechanical properties and results in a reduced amount of scum being formed within the developing solution.Type: GrantFiled: March 26, 1984Date of Patent: April 2, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Masashi Ogawa, Kunio Ishigaki, Nobuyuki Iwasaki, Taku Nakamura
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Patent number: 4504578Abstract: A hardened photographic film is formed as a result of in situ generation of aldehyde hardener, by incorporating an aldehyde precursor in one layer and pyridine-N-oxide in an adjacent layer. Preferred aldehyde precursor is 1,5-dibromopentane or 1,5-dichloropentane.Type: GrantFiled: October 11, 1983Date of Patent: March 12, 1985Assignee: E. I. Du Pont de Nemours and CompanyInventor: Reginald A. Booker
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Patent number: 4503134Abstract: A method of modifying a surface of a colored micro-filter element for a color imaging device,which comprises;hardening the surface of the colored micro-filter element formed on an image sensing surface of an imaging device or on a transparent support to be superposed on the image sensing surface;andtreating the so hardened surface of the colored micro-filter element successively with an aqueous acidic solution containing tannic acid and an aqueous solution containing an alkali metal salt of antimonyl tartrate.The stage for hardening said surface can be carried out by treating said surface with a hardening solution or/and by heating the surface.Type: GrantFiled: May 25, 1983Date of Patent: March 5, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Kenji Matsumoto, Kazuharu Kawashima, Jun Hayashi
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Patent number: 4500453Abstract: This invention relates to cross-linked collagen-derived protein compositions having improved Bloom gel strength and increased viscosity. More particularly, it relates to improvement by cross-linking the protein with an aluminum salt of acetic acid selected from the group consisting of aluminum subacetate, aluminum triacetate and an alkali metal aluminum acetate double salt.Type: GrantFiled: June 29, 1984Date of Patent: February 19, 1985Assignee: DynaGel IncorporatedInventor: Joseph L. Shank
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Patent number: 4499182Abstract: A process of forming a hardened photographic film by in situ generation of hardener by incorporating an aldehyde precursor alcohol in one layer and pyridinium chlorochromate in an adjacent layer. Preferred aldehyde precursor alcohol is 1,5-pentanediol or methanol.Type: GrantFiled: October 11, 1983Date of Patent: February 12, 1985Assignee: E. I. Du Pont de Nemours and CompanyInventor: Reginald A. Booker
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Patent number: 4499181Abstract: A photographic recording material. On a support are provided a silver emulsion halide layer and a photographic layer. The photographic layer contains an indole compound represented by the general formula (I): ##STR1## wherein PUG represents a photographically useful group, Ball represents an organic group which has enough molecular weight and/or disposition to render the compound non-diffusible during processing of the photographic recording material with an alkaline medium and wherein the Ball contains a nitrogen atom which is directly attached to the 5th or 6th position of the indole ring. R.sub.1 represents a halogen atom or a monovalent organic group. R.sub.2 represents a hydrogen atom or a low molecular group attached, through a carbon atom, to the 2nd position of the indole ring. "m" represents an integer of zero to 3.Type: GrantFiled: June 2, 1983Date of Patent: February 12, 1985Assignee: Konishiroku Photo Ind., Co., Ltd.Inventors: Kazumasa Watanabe, Hidetaka Deguchi, Shunji Suginaka
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Patent number: 4481284Abstract: A silver halide photographic light-sensitive material is disclosed, comprising a support having thereon at least one light-sensitive silver halide emulsion layer and a light-insensitive uppermost layer. The light-insensitive uppermost layer has a melting time longer than that of the light-sensitive silver halide emulsion layer and a thickness of the light-insensitive uppermost layer is from 0.3 .mu.m to 0.8 .mu.m. The silver halide photographic light-sensitive material causes a remarkably lower degree of reticulation, can reduce the amount of scum formed in the processing solution, and has an improved covering power.Type: GrantFiled: September 21, 1982Date of Patent: November 6, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Masashi Ogawa, Kunio Ishigaki, Nobuyuki Iwasaki, Taku Nakamura
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Patent number: 4476218Abstract: A silver halide photographic light-sensitive material is described, which comprises a support, and at least one light-sensitive silver halide emulsion layer and an uppermost layer provided on at least one surface of the support, wherein the melting time of the uppermost layer is made greater than that of the light-sensitive silver halide emulsion layer. The material has good strength and produces a reduced amount of scum which normally occurs in the processing liquid during development processing.Type: GrantFiled: June 16, 1982Date of Patent: October 9, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Masashi Ogawa, Kunio Ishigaki, Taku Nakamura, Nobuyuki Iwasaki
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Patent number: 4474872Abstract: A method for producing a photographic emulsion is disclosed. The method includes the process of adding a dispersion of a substantially water-insoluble photographic additive to a photographic emulsion. The dispersion being prepared merely by mechanically grinding and dispersing the photographic additive in a form of fine grain having a size of 1.mu. or less in an aqueous system adjusted to a pH value of 6 to 8 and controlled to a temperature of 60.degree. to 80.degree. C. The additive is included in the photographic emulsion without the need of an organic solvent. The emulsion of the invention can be easily and quickly coated to form a uniform layer.Type: GrantFiled: December 17, 1982Date of Patent: October 2, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroshi Onishi, Kazutoshi Inada, Nobuaki Miyasaka, Naoyasu Deguchi, Masayuki Kuroishi
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Patent number: 4468451Abstract: This invention relates to photographic processes and products for forming an image in dye from a colorless precursor of a preformed image dye which is substituted with a moiety comprising a 1,3-sulfur-nitrogen group, said 1,3-sulfur-nitrogen group (a) being capable of undergoing cleavage in the presence of silver ion and/or soluble silver complex, and (b) possessing an amide substituent on the carbon atom in the 2-position that undergoes an intramolecularly accelerated cleavage reaction following the cleavage of said 1,3-sulfur-nitrogen group, which moiety maintains said precursor in its colorless form at least until the 1,3-sulfur-nitrogen group undergoes said cleavage. In a further embodiment, the cleavage of the amide substituent following the cleavage of the 1,3-sulfur-nitrogen group is used to provide an imagewise distribution of a photographically useful reagent, which reagent may be, for example, a photographically active reagent.Type: GrantFiled: June 2, 1983Date of Patent: August 28, 1984Assignee: Polaroid CorporationInventor: James W. Foley
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Patent number: 4460682Abstract: A novel silver halide photographic element which contains a nondiffusible complex capable of releasing a diffusible, photographically useful material is disclosed.Said nondiffusible complex becomes active for ligand exchange upon reduction under alkalin conditions to release a diffusible, photographically useful material, said complex being represented by the following formula: ##STR1## wherein La is a quadridentate ligand group; Lb is a didentate ligand group; BALL is a ballast group; PHOTO is a photographically useful material group; Y is a counter ion; and r is the number of counter ions necessary for neutralizing the electric charge on the CO(III) complex.Type: GrantFiled: December 15, 1982Date of Patent: July 17, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Noboru Mizukura, Satoru Ikeuchi, Shunji Suginaka, Noriko Fujita
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Patent number: 4460680Abstract: A silver halide photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and a light-insensitive uppermost layer is disclosed. The light-insensitive uppermost layer has a melting time longer than that of the light-sensitive silver halide emulsion layer and the thickness of the light-insensitive uppermost layer is from 1.3 .mu.m to 5.0 .mu.m. The silver halide photographic light-sensitive material has an improved covering power and results in remarkably low degree of reticulation. Furthermore, when the material is used it results in a reduced amount of scum being formed in the processing solution.Type: GrantFiled: August 25, 1982Date of Patent: July 17, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Masashi Ogawa, Kunio Ishigaki, Nobuyuki Iwasaki, Taku Nakamura