And Binder, Coating Aid, Solvent, Emulsifier, Hardener, Chemical Sensitizer, Or Optical Sensitizer Patents (Class 430/377)
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Patent number: 9809661Abstract: A process for the continuous synthesis of diene elastomers with a high degree of conversion is provided. The process includes simultaneously: a) introducing continuously into a polymerization reactor containing a gas phase and equipped with at least one stirring rotor and a discharge device, at least i. one or more monomers, including at least one conjugated diene monomer, and ii. from 0% to 70% by mass of an organic solvent, calculated relative to the total mass of monomers and of solvent b) continuously polymerizing the monomer(s), c) stirring the polymerization medium via the continuous movement of at least one stirring rotor about a rotary axle, d) continuously discharging the elastomer paste, e) continuously conveying the discharged elastomer paste to a chopping device and chopping it into particles, f) removing solvent from the particles of the elastomer paste, and g) recovering diene elastomer.Type: GrantFiled: July 1, 2013Date of Patent: November 7, 2017Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.Inventors: Jerome Dussillols, Pierre Kiener, Helene Parola
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Patent number: 9708628Abstract: The present invention relates to a compound represented by the formula (1) wherein Xa and Xb are each independently X1 or X2; s is 1 or 2, R4 is an alkyl group having 1-6 carbon atoms, na and nb are each independently 0 or 1, R1a and R1b are each independently an alkylene group having 1-6 carbon atoms, R2a and R2b are each independently an alkylene group having 1-6 carbon atoms, Ya and Yb are each independently an ester bond, an amide bond, a carbamate bond, an ether bond or a urea bond, and R3a and R3b are each independently a sterol residue, a liposoluble vitamin residue or an aliphatic hydrocarbon group having 12-22 carbon atoms, and use thereof.Type: GrantFiled: May 16, 2014Date of Patent: July 18, 2017Assignees: NOF Corporation, National University Corporation Hokkaido UniversityInventors: Kota Tange, Masaya Arai, Kazuhiro Kubo, Hidetaka Akita, Hideyoshi Harashima, Hiroto Hatakeyama, Ryohei Ishiba, Masami Ukawa, Hiroki Tanaka
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Patent number: 8546070Abstract: A color photographic element has a reflective support and a blue light sensitive color record, a green light sensitive color record, and a red light sensitive color record can be used to provide color photographic prints. The element also has a non-light sensitive interlayer between the green light and red light sensitive color records. This interlayer comprises a hydrophilic colloid and an acrylic latex polymer having a glass transition temperature (Tg) of less than 0° C. The presence of this acrylic latex polymer in the interlayer reduces the formation of a cyan line defect when the color photographic print is folded or creased, such as in photobooks.Type: GrantFiled: October 15, 2012Date of Patent: October 1, 2013Assignee: Eastman Kodak CompanyInventors: Jess B. Hendricks, III, Paul L. Zengerle, Andrew D. Church, Darrell B. Austin
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Patent number: 8357485Abstract: A multi-color photographic silver halide element has a total gelatin level on the imaging side of the support is less than 9000 mg/m2, and bulk gelatin-to-junk weight ratio for all of the light sensitive layers on the imaging side of the support is greater than 1.5. This weight ratio is defined by: Bulk gelatin-to-junk ratio=[(Bgel×Bgel/junk)+(Rgel×Rgel/junk)+(Ggel+Ggel/junk)]÷(Bgel+Rgel+Ggel) wherein Bgel is the total gelatin level for blue light sensitive layers, Bgel/junk is the gelatin-to-junk ratio for blue light sensitive layers, Rgel is the total gelatin level for red light sensitive layers, Rgel/junk is the gelatin-to-junk ratio for red light sensitive layers, Ggel is the total gelatin level for green light sensitive layers, and Ggel/junk is the gelatin-to-junk ratio for green light sensitive layers.Type: GrantFiled: October 25, 2010Date of Patent: January 22, 2013Assignee: Eastman Kodak CompanyInventors: Christopher J. Haller, Daniel R. May, Paul L. Zengerle
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Patent number: 7122299Abstract: A silver halide photographic photosensitive material, containing at least one residual-color-reducing agent having at least one aromatic ring or aromatic heterocycle in its molecule; a processing method thereof; and an image-forming method.Type: GrantFiled: November 5, 2003Date of Patent: October 17, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Makoto Suzuki, Takanori Hioki, Naoto Matsuda
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Patent number: 7112400Abstract: An image forming method including a step of imagewise exposing a silver halide color photographic photosensitive material having, on a support, photographic constituent layers including at least one blue sensitive silver halide emulsion layer, at least one green sensitive silver halide emulsion layer, at least one red sensitive silver halide emulsion layer, and at least one non-photosensitive hydrophilic colloid layer, a color developing step, a bleach-fixing step and a rinsing step.Type: GrantFiled: November 3, 2004Date of Patent: September 26, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Shin Soejima, Kentaro Okazaki
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Patent number: 6921631Abstract: A silver halide color photographic material, which can provide photographs reduced in unevenness of finished image density with high productivity and at low prices even when it undergoes exposure and photographic processing operations under high-speed transport in the form of sheets, and a method of forming images by use of such a photographic material.Type: GrantFiled: July 17, 2003Date of Patent: July 26, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuaki Deguchi, Hiroyuki Yoneyama, Kazuaki Yoshida, Shin Soejima, Yoshiro Ochiai, Shinichi Nakahira
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Patent number: 6756188Abstract: This invention relates to a photographic element comprising a support and at least two silver halide emulsion layers further comprising, an electron transfer agent releasing compound represented by the formula (I): CAR1—(L)n—ETA (I) wherein: CAR1 is a carrier moiety which is capable of releasing —(L)n-ETA on reaction with oxidized developing agent; L is a divalent linking group, n is 0, 1 or 2; and ETA is a releasable 1-aryl-3-pyrazolidinone electron transfer agent having a calculated log partition coefficient (c log P) greater than or equal to 2.40 and the total sum of the Hammett sigma(para) values of the substituents on the 1-aryl ring is 0.Type: GrantFiled: September 16, 2002Date of Patent: June 29, 2004Assignee: Eastman Kodak CompanyInventors: John E. Keevert, Stephen P. Singer, Kenneth J. Reed, Kenneth J. Lushington, Mary C. Brick, James A. Friday
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Patent number: 6746833Abstract: A color image forming method is disclosed, comprising exposing a silver halide color photographic material and developing the exposed photographic material at 43 to 180° C. to form a color image, wherein at least one light-sensitive layer comprising a silver halide emulsion comprising tabular silver halide grains having an average aspect ratio of at least 8. There is also disclosed a digital image forming process, wherein image recording information of the photographic material which was formed by use of the color image forming method is coverted to digital image information through an image sensor.Type: GrantFiled: May 15, 2003Date of Patent: June 8, 2004Assignee: Konica CorporationInventors: Hiromoto Ii, Hiroyuki Hoshino, Noriyuki Kokeguchi
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Publication number: 20040067455Abstract: This invention relates to a photographic element comprising a support and at least two silver halide emulsion layers further comprising an electron transfer agent releasing compound represented by the formula (I):Type: ApplicationFiled: September 16, 2002Publication date: April 8, 2004Applicant: Eastman Kodak CompanyInventors: John E. Keevert, Stephen P. Singer, Kenneth J. Reed, Kenneth J. Lushington, Mary C. Brick, James A. Friday
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Patent number: 6670112Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon one or more layers including at least one light-sensitive silver halide emulsion layer comprising at least one coupler which undergoes a coupling reaction with an oxidized product of an aromatic primary amine developer to form a dye, wherein at least one of the layer(s) on said support comprises at least one compound represented by the following formula (I): wherein R1 represents a linear or branched unsubstituted alkenyl group having 3-14 carbon atoms, R2 represents an alkyl group, a cycloalkyl group, a linear or branched unsubstituted alkenyl group having 3-14 carbon atoms, R3 represents a group capable of being substituted on the benzene ring, and m represents an integer from 0 to 4. This may be use as a light-sensitive material which can provide a stable color-image.Type: GrantFiled: May 25, 2000Date of Patent: December 30, 2003Inventors: Hiroo Takizawa, Yasuhiro Yoshioka, Masakazu Morigaki
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Publication number: 20030194663Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon one or more layers including at least one light-sensitive silver halide emulsion layer comprising at least one coupler which undergoes a coupling reaction with an oxidized product of an aromatic primary amine developer to form a dye, wherein at a least one of the layer(s) on said support comprises at least one compound represented by the following formula (I): 1Type: ApplicationFiled: May 25, 2000Publication date: October 16, 2003Inventors: Hiroo Takizawa, Yasuhiro Yoshioka, Masakazu Morigaki
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Publication number: 20030175627Abstract: A method of increasing speed of a silver halide color photosensitive material. The photosensitive material has, on a support, a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a red-sensitive silver halide emulsion layer, and a nonsensitive layer.Type: ApplicationFiled: November 22, 2002Publication date: September 18, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Junichiro Hosokawa, Yasuhiro Shimada, Osamu Uchida, Yasuhiro Ishiwata, Toshio Kawagishi
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Publication number: 20020155394Abstract: A silver halide emulsion which exhibits high sensitivity, high contrast, little sensitivity variation with humidity conditions at the time of exposure, and excellent reciprocity law properties at high illumination intensities. Also, a method of preparing the emulsion in a stable manner, and a silver halide color photographic photosensitive material and an image forming method that use the emulsion. The emulsion includes a mesoionic compound having a thiolate structure or a protonated thiolate structure, and the emulsion is sensitized by an Au (III) compound. The emulsion preferably contains an oxidatively dimerized form of a mesoionic compound having a thiolate structure, and a silver chloride content of at least 90 mol %.Type: ApplicationFiled: October 1, 2001Publication date: October 24, 2002Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Hirotomo Sasaki, Hideki Maeta, Naoto Ohshima
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Patent number: 6413706Abstract: There is disclosed a method for producing an aqueous dispersion of a water-insoluble photographically useful compound, by mixing a composition containing at least one water-insoluble photographically useful organic compound with an aqueous medium, and finely dividing the mixture into particulates by a super-high-pressure homogenizer at 180 MPa (1800 bar) or higher. According to the method, the aqueous dispersion of the water-insoluble photographically useful compound can be produced without using a low-boiling solvent, with excellent energy efficiency and in a simple step. Further, there is also disclosed a silver halide photographic light-sensitive material utilizing the dispersion.Type: GrantFiled: May 11, 2000Date of Patent: July 2, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Masatoshi Nakanishi, Hirokazu Saito
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Publication number: 20020076661Abstract: The present invention provides a system of a digital color proof in which consistent images are obtained while minimizing density variation in spite of various variations of conditions due to the use of a silver halide light-sensitive color material, specifically, the present invention provides a method for forming proof images similar to printed images in terms of various characteristics such as the paper quality of silver halide light-sensitive materials, the dot gain, and the density.Type: ApplicationFiled: September 20, 2001Publication date: June 20, 2002Applicant: KONICA CORPORATIONInventors: Tomonori Kawamura, Shigeo Tanaka, Satoshi Nishino, Hirohide Ito, Naohito Naraoka, Naoyo Suzuki, Shinya Watanabe, Masataka Takimoto, Hideaki Sakata, Junichi Tanabe, Tetsuya Taniguchi, Naoki Nozaki, Yasushi Okubo, Koji Daifuku, Katsuji Kondo, Toshitsugu Suzuki
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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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Patent number: 6309812Abstract: There is disclosed an emulsified dispersion of photographic hydrophobic compound fine grains (with a proviso of excluding silver halides), which comprises an added water-soluble monovalent- or polyvalent-metal salt. The emulsified dispersion whose particle size is small, is excellent in the stability of the particle size with the lapse of time. There is also disclosed a silver halide photographic light-sensitive material, which contains the emulsified dispersion.Type: GrantFiled: November 3, 1998Date of Patent: October 30, 2001Assignee: Fuji Photo Film Co., Ltd.Inventors: Yukio Aogaki, Masahiro Fukuoka
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Patent number: 6291151Abstract: There is disclosed a silver halide photographic light-sensitive material comprising at least a silver halide emulsion layer containing a yellow dye-forming coupler, a silver halide emulsion layer containing a magenta dye-forming coupler and a silver halide emulsion layer containing a cyan dye-forming coupler, on a support, wherein: the silver halide emulsion layer containing a yellow dye-forming coupler is located more apart from the support than at least one of the silver halide emulsion layer containing a magenta dye-forming coupler and the silver halide emulsion layer containing a cyan dye-forming coupler, and silver halide grains contained in the silver halide emulsion layer containing a yellow dye-forming coupler comprises a high silver chloride emulsion in which the content of silver halide is 80 mol % or more. There is also disclosed a method of forming an image using the light-sensitive material.Type: GrantFiled: January 28, 2000Date of Patent: September 18, 2001Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroyuki Yoneyama, Katsuhisa Ohzeki, Yasuaki Deguchi, Katsuyuki Takada
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Publication number: 20010004512Abstract: A silver halide color photographic light-sensitive material comprising a support having provided thereon: at least one yellow-color-forming light-sensitive silver halide emulsion layer; at least one magenta-color-forming light-sensitive silver halide emulsion layer; at least one cyan-color-forming light-sensitive silver halide emulsion layer; and at least one light-insensitive non-color-forming hydrophilic colloid layer, wherein at least one layer of said at least one cyan-color-forming light-sensitive silver halide emulsion layer contains at least one cyan-dye-forming coupler having a pKa of not more than 8.Type: ApplicationFiled: July 6, 1998Publication date: June 21, 2001Applicant: Yasuhiro YoshiokaInventors: YASUHIRO YOSHIOKA, SHIN SOEJIMA, OSAMU TAKAHASHI, NAOKI SAITO, HISASHI MIKOSHIBA, MASAKAZU MORIGAKI
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Patent number: 6187526Abstract: The invention relates to the preparation of photographic dispersions. The method of the invention consists in preparing a fluid dispersion of an additive in a colloid, congealing the resulting dispersion, subdividing the resulting congealed dispersion into particles, washing the resulting particles, and adding to them a solution of biocide. A dispersion is thus obtained that is protected against the proliferation of micro-organisms during storage.Type: GrantFiled: November 18, 1999Date of Patent: February 13, 2001Assignee: Eastman Kodak CompanyInventors: Christian Paris, Laurent G. Fernandez-Puente
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Patent number: 6132946Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon one or more layers including at least one light-sensitive silver halide emulsion layer comprising at least one coupler which undergoes a coupling reaction with an oxidized product of an aromatic primary amine developer to form a dye, wherein at least one of the layer(s) on said support comprises at least one compound represented by the following formula (I): ##STR1## wherein R.sup.1 represents a linear or branched unsubstituted alkenyl group having 3-14 carbon atoms, R.sup.2 represents an alkyl group, a cycloalkyl group, a linear or branched unsubstituted alkenyl group having 3-14 carbon atoms, R.sup.3 represents a group capable of being substituted on the benzene ring, and m represents an integer from 1 to 4. This may be use as a light-sensitive material which can provide a stable color-image.Type: GrantFiled: February 6, 1998Date of Patent: October 17, 2000Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroo Takizawa, Yasuhiro Yoshioka, Masakazu Morigaki
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Patent number: 6110658Abstract: Disclosed is a photographic element having a reduced rate of crystal formation comprising a silver halide emulsion layer having associated therewith:(a) a phenolic cyan dye-forming "NB coupler";(b) a first high boiling solvent having Formula (IV):G--C--OO--R.sup.1 (IV)wherein:R.sup.1 is an alkyl or aryl groups; andG is an alkyl (including cycloalkyl and aralkyl) containing linking group; and(c) one or more second high boiling solvents selected from phosphates, phosphonates, phosphine oxides, sulfoxides, and carbonamides, said second high boiling solvent being present in amounts (by weight) sufficient to reduce crystal formation in a dispersion of the coupler compared to a dispersion of the same coupler in a dispersion where the second solvent is replaced with a like amount of the first solvent.Type: GrantFiled: March 10, 1999Date of Patent: August 29, 2000Assignee: Eastman Kodak CompanyInventors: James S. Honan, Raymond P. Scaringe, Thomas A. Rosiek
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Patent number: 5989801Abstract: The present invention provides a silver halide photographic material and an image forming method for obtaining a monochrome image using a dye image even if it is treated with a color developer free of benzyl alcohol; a photographic property of the monochrome image is less deteriorated by a toxic gas such as formaldehyde and an increase in sensitization and fog with time is improved.Type: GrantFiled: August 26, 1998Date of Patent: November 23, 1999Assignee: Oriental Photo Industrial Co., Ltd.Inventors: Toshio Hirosawa, Kouji Katsube, Toshiko Nakamura, Yoshiro Hayafuchi, Katsuyuki Arasawa
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Patent number: 5830632Abstract: Photographic element are described comprising a support bearing a photographic silver halide emulsion layer having associated therewith a micro-precipitated dispersion of a high dye-yield coupler having the formula:COUP--(T).sub.m --L--DYEwhere COUP is the coupler moiety of the coupler capable of reacting at the coupling position with oxidized color developer to form a first dye, T is one or more timing groups with m=0, 1 or 2, L is a linking group selected from the group consisting of --OC(O)--, --OC(S)--, --SC(O)--, --SC(S)--, or --OC(.dbd.NSO.sub.2 R)--, where R is a substituted or unsubstituted alkyl or aryl group, and DYE is a second dye or precursor thereof comprising an electrically neutral chromophore. The invention also provides a photographic coupler dispersion, a photographic silver halide emulsion, and a process for forming an image in a photographic element in accordance with the invention.Type: GrantFiled: October 31, 1996Date of Patent: November 3, 1998Assignee: Eastman Kodak CompanyInventors: Krishnan Chari, David Thomas Southby, David Hoke
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Patent number: 5763146Abstract: The invention relates to a silver halide photographic emulsion comprising silver halide grains and the reductone of Formula I ##STR1## wherein R.sub.1 and R.sub.2 are the same or different, and may represent H, alkyl, cycloalkyl, aryl, or an alkyl group with a solubilizing group such as --OH, sulfonamide, sulfamoyl, or carbamoyl, R.sub.1 and R.sub.2 may be joined to complete a heterocyclic ring such as aziridinyl, azetidinyl, pyrrolidinyl, piperidinyl, morpholinyl, piperazinyl, or pyridinyl, R.sub.4 and R.sub.5 are H, OH, alkyl, aryl, cycloalkyl, or may together represent an alkylidene group, n is 1 or 2 and R.sub.3 is H, alkyl, aryl, or CO.sub.2 R.sub.6 where R.sub.6 is alkyl, andwherein the logarithm of the partition coefficient for the reductone when equilibrated as a solute between n-octanol and water (logP) is less than 0.293.Type: GrantFiled: March 10, 1997Date of Patent: June 9, 1998Assignee: Eastman Kodak CompanyInventors: James H. Reynolds, Steven P. Szatynski, Jeffrey L. Hall, Norma B. Platt
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Patent number: 5605785Abstract: A process for forming a nanocrystalline dispersion of a photographically useful compound in a continuous phase comprising the steps of:providing a nanoamorphous dispersion of said photographically useful compound in said continuous phase, andannealing said nanoamorphous dispersion to transform the physical state of said chemical compound therein to a crystalline physical state and to thereby obtain a nanocrystalline dispersion is disclosed.Type: GrantFiled: March 28, 1995Date of Patent: February 25, 1997Assignee: Eastman Kodak CompanyInventors: John Texter, David A. Czekai
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Patent number: 5604079Abstract: There is described a photographic system wherein development of an exposed photosensitive element is carried out in the presence of an acylpyridine-N-oxide compound.Type: GrantFiled: May 14, 1996Date of Patent: February 18, 1997Assignee: Polaroid CorporationInventors: Michael P. Filosa, Edward D. Kingsley, Kenneth C. Waterman
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Patent number: 5595860Abstract: A process for processing a silver halide color photographic material, which comprises developing in a color developer substantially free of sulfite ion and containing an aromatic primary amine color developing agent and at least one phosphorus compound selected from the group consisting of compounds represented by formula (I), formula (I-a) and formula (I-b) and internal salts thereof: ##STR1## wherein R, R' and R" each represents an aliphatic hydrocarbon group or an aryl group; A represents a divalent or trivalent linking group; M, M' and M" each represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, an ammonium or a quaternary ammonium; and m represents 2 when M, M' or M" is monovalent and m is 1 when M, M' and M" is divalent.Type: GrantFiled: April 27, 1995Date of Patent: January 21, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Masakazu Yoneyama
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Patent number: 5538834Abstract: A method is disclosed for developing an image in a photographic element comprising a support, a silver halide emulsion containing an imagewise distribution of developable silver halide grains, and a blocked photographically useful compound comprising a photographically useful group and a blocking group capable of releasing the photographically useful group upon processing the photographic element in the presence of a peroxide, wherein the blocking group comprises an electrophilic group which is solely capable of undergoing a nucleophilic displacement reaction, the electrophilic group being bonded directly or through a releasable timing group to the photographically useful group, with the proviso that when the photographically useful group is a development inhibitor, the blocking group is bonded to the photographically useful group through at least one releasable timing group. The method comprises the step of contacting the photographic element with a processing solution comprising a peroxide.Type: GrantFiled: November 21, 1994Date of Patent: July 23, 1996Assignee: Eastman Kodak CompanyInventors: J. Michael Buchanan, Jared B. Mooberry, John Texter
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Patent number: 5500331Abstract: A method of preparing submicron particles of a material, such as a pigment useful in paints or a compound useful in imaging elements, which comprises milling the agent in the presence of milling media having a mean particle size of less than about 100 microns. In a preferred embodiment, the milling media is a polymeric resin. The method provides extremely fine particles, e.g., less than 100 nm in size, free of unacceptable contamination.Type: GrantFiled: May 25, 1994Date of Patent: March 19, 1996Assignee: Eastman Kodak CompanyInventors: David A. Czekai, Larry P. Seaman
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Patent number: 5478705Abstract: Particles of compound useful in imaging elements are milled using a milling media comprising a polymeric resin. The use of polymeric milling media permits the production of particles having an average particle size less than 1 micron. Further, the resulting particles are free from the contamination resulting from conventional milling media of, for example, glass, ceramic or steel.Type: GrantFiled: May 25, 1994Date of Patent: December 26, 1995Assignee: Eastman Kodak CompanyInventors: David A. Czekai, Dennis E. Smith, John F. Bishop, Paul E. Woodgate, James R. Bennett
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Patent number: 5462843Abstract: A silver halide material for colour photography, comprising a support, at least one blue-sensitive yellow-coupling silver halide emulsion layer, at least one green-sensitive, magenta-coupling silver halide emulsion layer, and at least one red-sensitive, cyan-coupling silver halide emulsion layer applied to the support and conventional intermediate and protective layers, the emulsion in at least one of the silver halide layers comprising not less than 80 mol-% AgCl and not more than 0.5 mol-% AgI, and the last-mentioned silver halide emulsion is doped with at least one compound of a metal in the groups (a) and (b), where (a) comprises rhodium, iridium, osmium, ruthenium, rhenium and cadmium and (b) comprises gold and platinum. The material has very good development kinetics.Type: GrantFiled: September 20, 1994Date of Patent: October 31, 1995Assignee: Agfa-Gevaert AGInventors: Sieghart Klotzer, Bruno Mucke
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Patent number: 5441854Abstract: A process is disclosed for forming a color photographic image comprising the steps of:(a) providing an integral element comprising one and only one dimensionally stable layer comprising a reflection base or transparent base coating support, and coated thereon in reactive association an imaging layer comprising radiation sensitive silver halide, a diffusible dye forming layer comprising a diffusible dye forming compound, and a barrier layer overlaying said diffusible dye forming layer;(b) exposing this integral element to actinic radiation(c) processing this integral element by contacting this element to an external bath containing compounds selected from the group consisting of color developer compounds, compounds which activate the release of incorporated color developers, and compounds which activate development by incorporated dye developers; and(d) washing this integral element to remove compounds imbibed in step (c). The diffusible dye forming layer is the same or different than the imaging layer.Type: GrantFiled: July 18, 1994Date of Patent: August 15, 1995Assignee: Eastman Kodak CompanyInventors: John Texter, Wayne A. Bowman, Glenn T. Pearce
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Patent number: 5434036Abstract: Process for forming a microcrystalline coupler dispersion comprising the steps of: providing crystalline coupler in an aqueous suspension; dispersing said coupler with mechanical shear, combining said coupler dispersion with an activating water-immiscible organic solvent; and mixing said combined dispersion is disclosed.Type: GrantFiled: May 20, 1994Date of Patent: July 18, 1995Assignee: Eastman Kodak CompanyInventor: John Texter
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Patent number: 5415980Abstract: A method of forming a photographic image comprising imagewise exposing a silver halide color photographic material comprising a support having thereon a cyan color image forming layer, a magenta color image forming layer and an yellow color image forming layer, wherein the cyan color image forming layer in the photographic material contains silver halide emulsion grains having a silver chloride content of 95 mol % or more and containing substantially no silver iodide and contains a color sensitizing dye of the following general formula (I), ##STR1## wherein the terms are as defined in the specification and color developing the exposed material with a color developer, wherein the color developer has a chloride ion content of from 3.5.times.10.sup.-2 to 1.5.times.10.sup.-1 mol/liter and a bromide ion content of from 1.5.times.10.sup.-5 to 1.0.times.10.sup.-3 mol/liter.Type: GrantFiled: March 25, 1994Date of Patent: May 16, 1995Assignee: Fuji Photo Film Co., Ltd.Inventor: Naoto Ohshima
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Patent number: 5405736Abstract: The invention provides a photographic dispersion for inducing dye stability in the eventual photographic product. The invention provides in a first aspect a photographic dispersion comprising a photographic coupler and a solvent therefore wherein the solvent is solid at its temperature of fade concern thereby to promote dye stability in use.The invention also provides a photographic coupler and a solvent therefor wherein the solvent is an alkyl alcohol or an optionally substituted dialkyl or diaryl phosphate. The coupler may have a ballasted chain having a matched molecular structure thereby to further promote dye stability in use.Type: GrantFiled: December 23, 1992Date of Patent: April 11, 1995Assignee: Eastman Kodak CompanyInventor: David J. Young
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Patent number: 5401623Abstract: A photographic coupler dispersion comprising colloidal microcrystalline particles of coupler, wherein said particles are wetted with an activating and water-immiscible organic solvent, and a color photographic element comprising a support bearing at least one photographic silver halide emulsion layer and a microcrystalline coupler dispersion in reactive association with said emulsion layer, wherein said coupler is wetted with an activating water-immiscible organic solvent are disclosed.Type: GrantFiled: October 5, 1992Date of Patent: March 28, 1995Assignee: Eastman Kodak CompanyInventor: John Texter
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Patent number: 5298368Abstract: Photographic coupler compositions comprise (a) a pyrazolone magenta dye-forming coupler compound, and (b) a sulfoxide compound in an amount sufficient to reduce continued coupling of the coupler compound during the bleach step of a color photographic process. The sulfoxide compound is of the formula ##STR1## wherein R.sub.1 and R.sub.2 are individually selected from the group consisting of straight and branched chain alkyl groups, alkenyl groups and alkylene groups; straight and branched chain alkyl groups, alkenyl groups and alkylene groups containing at least one substituent selected from the group consisting of alkoxy, aryloxy, aryl, alkoxycarbonyl, aryloxycarbonyl, acyloxy, carbonamido and carbamoyl groups and halogen atoms; a phenyl group; and a phenyl group containing at least one substituent selected from the group consisting of alkyl, alkoxy, aryloxy, aryl, alkoxycarbonyl, aryloxycarbonyl, acyloxy, carbonamido and carbamoyl groups and halogen atoms. Additionally, R.sub.1 and R.sub.Type: GrantFiled: April 23, 1991Date of Patent: March 29, 1994Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, Edward Schofield, Stephen P. Singer
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Patent number: 5298386Abstract: An in-line process for mixing solvents with amorphous particle dispersions is disclosed. Continuous emulsification of the solvent is achieved by an in-line high-shear mixer, and diffusion of solvent to the amorphous particles is controlled in a plug flow reactor. Both processes are conducted in-line during dispersion delivery to coating processes. An apparatus for carrying out the process is also disclosed.Type: GrantFiled: June 9, 1992Date of Patent: March 29, 1994Assignee: Eastman Kodak CompanyInventor: David A. Czekai
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Patent number: 5298375Abstract: Disclosed is a silver halide color photographic material which contains a particular epoxy compound having slight solubility in water, an acylacetamide type yellow dye forming coupler the acyl group of which is a cycloalkane type and a pyrazolotriazole type magenta dye forming coupler which contains specified substituents and splitting-off group to produce color images of high keeping quality, especially to produce a yellow dye image with excellent hue and reduced discoloration upon long-range storage in the dark, and, what is more, to inhibit magenta color stain from generating in the yellow dye image.Type: GrantFiled: November 17, 1992Date of Patent: March 29, 1994Assignee: Fuji Photo Film Co., Ltd.Inventor: Yasuaki Deguchi
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Patent number: 5260176Abstract: A method of forming a color image on a silver halide color photographic light-sensitive material having at least one silver halide emulsion layer provided on a reflective support, which does not substantially contain silver iodide and which contains silver chlorobromide or silver chloride grains having a silver chloride content of at least 95 mol %, said grains containing at least one metal ion consisting of a group of ions of metals of Group VIII of the Periodic Table, transition metals of Group II of the Periodic Table, lead and thallium in an amount of at least 10.sup.-9 mol per mol of silver halide, comprising exposing said photographic material by means of a scanning exposure using an image signal formed by scanning an original image and thereafter continuously processing said photographic material with a color developer substantially not containing benzyl alcohol, wherein the amount of the replenisher to the developer is 200 ml or less per m.sup.2 of the photographic material processed thereby.Type: GrantFiled: January 8, 1992Date of Patent: November 9, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeaki Otani, Yoji Okazaki
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Patent number: 5250405Abstract: Color photographic materials comprise a support bearing a silver halide emulsion and a coupler composition. The coupler composition comprises a two-equivalent pyrazolone magenta dye-forming coupler, a ballasted carbonamide compound, and a developer inhibitor-releasing coupler. The carbonamide compound reduces continued coupling of the pyrazolone magenta dye-forming coupler during the bleach step in a color photographic process without altering the advantageous properties provided by the combination of the two-equivalent pyrazolone magenta dye-forming coupler and the developer inhibitor-releasing coupler.Type: GrantFiled: August 29, 1991Date of Patent: October 5, 1993Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, Stephen P. Singer
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Patent number: 5240821Abstract: A dispersion comprising solid particles of a developer precursor having the structureCD--(T).sub.m --Sin whichCD is a silver halide color developer,T is a timing group,m is an integer from 0 to 6, andS is a blocking group,and a vehicle in which the solid particles are insoluble, is disclosed. The dispersion can be incorporated in a photographic element.Type: GrantFiled: December 19, 1991Date of Patent: August 31, 1993Assignee: Eastman Kodak CompanyInventors: John Texter, William B. Travis, Jared B. Mooberry
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Patent number: 5238790Abstract: A silver halide photographic light-sensitive material contains a dispersion in which at least one compound represented by formula (I) below and a photographic useful reagent, which is hard to solve in water, are dispersed together. (In formula (I), R.sub.1 and R.sub.2 independently represent amino having 0 to 32 carbon atoms, alkoxy having 1 to 32 carbon atoms, or aryloxy having 6 to 32 carbon atoms, R.sub.3 and R.sub.4 independently represent a group which can be substituted on a benzene ring, and l and m independently represent an integer of 0 to 4. R.sub.3 and/or R.sub.4 may be the same or different when l and/or m is 2 to 4. In a method of processing a silver halide photographic light-sensitive material, the silver halide photographic light-sensitive material is exposed imagewise and then developed with a color developer not essentially containing benzyl alcohol.Type: GrantFiled: December 19, 1991Date of Patent: August 24, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshio Shimura, Hidetoshi Kobayashi, Hideaki Naruse
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Patent number: 5232821Abstract: Photographic coupler compositions comprise (a) a magenta dye-forming coupler compound, and (b) a sulfoxide compound or a sulfone compound in an amount sufficient to improve the light stability of a magenta dye formed from the magenta dye-forming coupler compound. The sulfoxide compound is of the formula ##STR1## and the sulfone compound is of the formula ##STR2## wherein R.sub.1 and R.sub.Type: GrantFiled: April 1, 1991Date of Patent: August 3, 1993Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, Edward Schofield
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Patent number: 5215875Abstract: A color photographic recording material comprising 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 and typical intermediate and protective layers, in which the silver halide coating of all the photosensitive layers, expressed as AgNO.sub.3, amounts to no more than 0.3 g/m.sup.2 and the color-coupler-containing layers contain at least one p-phenylenediamine compound containing at least one primary amino group and at least one ballast group dissolved in hydrophobic oil droplets, can be developed in an environment-friendly manner using an intensifying bath.Type: GrantFiled: June 7, 1991Date of Patent: June 1, 1993Assignee: Agfa Gevaert AktiengesellschaftInventors: Reinhart Matejec, Hans Vetter, Heinrich Odenwalder
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Patent number: 5206120Abstract: A method for forming a color image comprising the step of: developing a silver halide color photographic material for a color developing time of about 20 seconds or less and for a total processing time from color developing to drying of about 100 seconds or less, wherein the silver halide color photographic material comprises (a) a support; and (b) at least two layers on at least one side of the support, each of said at least two layers containing (i) a silver halide emulsion containing at least 90 mol% silver chloride and at least 50% by weight of gelatin as a binder, the gelatin having an isoelectric point of at least 5.3, and (ii) a diffusion resistant oil-soluble coupler that forms a dye by coupling with an oxidation product of an aromatic primary amine developing agent; and (c) the silver halide in the at least two layers differing in sensitivity wavelength range.Type: GrantFiled: December 13, 1990Date of Patent: April 27, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Hiroshi Hayashi
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Patent number: 5200303Abstract: A light-sensitive silver halide material composed of a support having thereon at least one light-sensitive silver halide emulsion layer, at least one layer of the light-sensitive silver halide emulsion layer or an adjacent layer thereof containing an oil droplet dispersion in a hydrophilic binder, the oil droplets containing the combination of (a) a polymer insoluble in water and soluble in an organic solvent; (b) a high boiling point organic solvent having a viscosity at 25.degree. C. of at least 500 cp and a boiling point of at least 120.degree. C.; and (c) at least one coupler capable of forming a non-diffusible cyan dye by a coupling reaction with an oxidized form of a primary aromatic amine developing agent.Type: GrantFiled: February 1, 1991Date of Patent: April 6, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Osamu Takahashi, Yoshio Seoka, Hidetoshi Kobayashi, Tsumoru Ishii