And Binder, Coating Aid, Solvent, Emulsifier, Hardener, Chemical Sensitizer, Or Optical Sensitizer Patents (Class 430/377)
  • Patent number: 9809661
    Abstract: 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: Grant
    Filed: July 1, 2013
    Date of Patent: November 7, 2017
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Jerome Dussillols, Pierre Kiener, Helene Parola
  • Patent number: 9708628
    Abstract: 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: Grant
    Filed: May 16, 2014
    Date of Patent: July 18, 2017
    Assignees: NOF Corporation, National University Corporation Hokkaido University
    Inventors: Kota Tange, Masaya Arai, Kazuhiro Kubo, Hidetaka Akita, Hideyoshi Harashima, Hiroto Hatakeyama, Ryohei Ishiba, Masami Ukawa, Hiroki Tanaka
  • Patent number: 8546070
    Abstract: 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: Grant
    Filed: October 15, 2012
    Date of Patent: October 1, 2013
    Assignee: Eastman Kodak Company
    Inventors: Jess B. Hendricks, III, Paul L. Zengerle, Andrew D. Church, Darrell B. Austin
  • Patent number: 8357485
    Abstract: 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: Grant
    Filed: October 25, 2010
    Date of Patent: January 22, 2013
    Assignee: Eastman Kodak Company
    Inventors: Christopher J. Haller, Daniel R. May, Paul L. Zengerle
  • Patent number: 7122299
    Abstract: 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: Grant
    Filed: November 5, 2003
    Date of Patent: October 17, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Suzuki, Takanori Hioki, Naoto Matsuda
  • Patent number: 7112400
    Abstract: 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: Grant
    Filed: November 3, 2004
    Date of Patent: September 26, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shin Soejima, Kentaro Okazaki
  • Patent number: 6921631
    Abstract: 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: Grant
    Filed: July 17, 2003
    Date of Patent: July 26, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuaki Deguchi, Hiroyuki Yoneyama, Kazuaki Yoshida, Shin Soejima, Yoshiro Ochiai, Shinichi Nakahira
  • Patent number: 6756188
    Abstract: 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: Grant
    Filed: September 16, 2002
    Date of Patent: June 29, 2004
    Assignee: Eastman Kodak Company
    Inventors: John E. Keevert, Stephen P. Singer, Kenneth J. Reed, Kenneth J. Lushington, Mary C. Brick, James A. Friday
  • Patent number: 6746833
    Abstract: 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: Grant
    Filed: May 15, 2003
    Date of Patent: June 8, 2004
    Assignee: Konica Corporation
    Inventors: Hiromoto Ii, Hiroyuki Hoshino, Noriyuki Kokeguchi
  • Publication number: 20040067455
    Abstract: 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: Application
    Filed: September 16, 2002
    Publication date: April 8, 2004
    Applicant: Eastman Kodak Company
    Inventors: John E. Keevert, Stephen P. Singer, Kenneth J. Reed, Kenneth J. Lushington, Mary C. Brick, James A. Friday
  • Patent number: 6670112
    Abstract: 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: Grant
    Filed: May 25, 2000
    Date of Patent: December 30, 2003
    Inventors: Hiroo Takizawa, Yasuhiro Yoshioka, Masakazu Morigaki
  • Publication number: 20030194663
    Abstract: 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): 1
    Type: Application
    Filed: May 25, 2000
    Publication date: October 16, 2003
    Inventors: Hiroo Takizawa, Yasuhiro Yoshioka, Masakazu Morigaki
  • Publication number: 20030175627
    Abstract: 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: Application
    Filed: November 22, 2002
    Publication date: September 18, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Junichiro Hosokawa, Yasuhiro Shimada, Osamu Uchida, Yasuhiro Ishiwata, Toshio Kawagishi
  • Publication number: 20020155394
    Abstract: 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: Application
    Filed: October 1, 2001
    Publication date: October 24, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Hirotomo Sasaki, Hideki Maeta, Naoto Ohshima
  • Patent number: 6413706
    Abstract: 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: Grant
    Filed: May 11, 2000
    Date of Patent: July 2, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masatoshi Nakanishi, Hirokazu Saito
  • Publication number: 20020076661
    Abstract: 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: Application
    Filed: September 20, 2001
    Publication date: June 20, 2002
    Applicant: KONICA CORPORATION
    Inventors: 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
  • Publication number: 20020064735
    Abstract: The invention relates to a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith (A) a cyan dye-forming coupler of formula (I) and (B) a bisphenol derivative compound of formula (II): 1
    Type: Application
    Filed: August 21, 2001
    Publication date: May 30, 2002
    Applicant: Eastman Kodak Company
    Inventors: David Clarke, Llewellyn J. Leyshon, Katie E. Smith
  • Publication number: 20020061480
    Abstract: The invention provides a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, UV absorber and
    Type: Application
    Filed: August 21, 2001
    Publication date: May 23, 2002
    Applicant: Eastman Kodak Company
    Inventor: Danuta Gibson
  • Patent number: 6309812
    Abstract: 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: Grant
    Filed: November 3, 1998
    Date of Patent: October 30, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yukio Aogaki, Masahiro Fukuoka
  • Patent number: 6291151
    Abstract: 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: Grant
    Filed: January 28, 2000
    Date of Patent: September 18, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroyuki Yoneyama, Katsuhisa Ohzeki, Yasuaki Deguchi, Katsuyuki Takada
  • Publication number: 20010004512
    Abstract: 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: Application
    Filed: July 6, 1998
    Publication date: June 21, 2001
    Applicant: Yasuhiro Yoshioka
    Inventors: YASUHIRO YOSHIOKA, SHIN SOEJIMA, OSAMU TAKAHASHI, NAOKI SAITO, HISASHI MIKOSHIBA, MASAKAZU MORIGAKI
  • Patent number: 6187526
    Abstract: 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: Grant
    Filed: November 18, 1999
    Date of Patent: February 13, 2001
    Assignee: Eastman Kodak Company
    Inventors: Christian Paris, Laurent G. Fernandez-Puente
  • Patent number: 6132946
    Abstract: 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: Grant
    Filed: February 6, 1998
    Date of Patent: October 17, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroo Takizawa, Yasuhiro Yoshioka, Masakazu Morigaki
  • Patent number: 6110658
    Abstract: Disclosed is a photographic element having a reduced rate of crystal formation comprising a silver halide emulsion layer having associated therewith:(a) a phenolic cyan dye-forming "NB coupler";(b) a first high boiling solvent having Formula (IV):G--C--OO--R.sup.1 (IV)wherein:R.sup.1 is an alkyl or aryl groups; andG is an alkyl (including cycloalkyl and aralkyl) containing linking group; and(c) one or more second high boiling solvents selected from phosphates, phosphonates, phosphine oxides, sulfoxides, and carbonamides, said second high boiling solvent being present in amounts (by weight) sufficient to reduce crystal formation in a dispersion of the coupler compared to a dispersion of the same coupler in a dispersion where the second solvent is replaced with a like amount of the first solvent.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: August 29, 2000
    Assignee: Eastman Kodak Company
    Inventors: James S. Honan, Raymond P. Scaringe, Thomas A. Rosiek
  • Patent number: 5989801
    Abstract: 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: Grant
    Filed: August 26, 1998
    Date of Patent: November 23, 1999
    Assignee: Oriental Photo Industrial Co., Ltd.
    Inventors: Toshio Hirosawa, Kouji Katsube, Toshiko Nakamura, Yoshiro Hayafuchi, Katsuyuki Arasawa
  • Patent number: 5830632
    Abstract: 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: Grant
    Filed: October 31, 1996
    Date of Patent: November 3, 1998
    Assignee: Eastman Kodak Company
    Inventors: Krishnan Chari, David Thomas Southby, David Hoke
  • Patent number: 5763146
    Abstract: 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: Grant
    Filed: March 10, 1997
    Date of Patent: June 9, 1998
    Assignee: Eastman Kodak Company
    Inventors: James H. Reynolds, Steven P. Szatynski, Jeffrey L. Hall, Norma B. Platt
  • Patent number: 5605785
    Abstract: 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: Grant
    Filed: March 28, 1995
    Date of Patent: February 25, 1997
    Assignee: Eastman Kodak Company
    Inventors: John Texter, David A. Czekai
  • Patent number: 5604079
    Abstract: 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: Grant
    Filed: May 14, 1996
    Date of Patent: February 18, 1997
    Assignee: Polaroid Corporation
    Inventors: Michael P. Filosa, Edward D. Kingsley, Kenneth C. Waterman
  • Patent number: 5595860
    Abstract: 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: Grant
    Filed: April 27, 1995
    Date of Patent: January 21, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Masakazu Yoneyama
  • Patent number: 5538834
    Abstract: 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: Grant
    Filed: November 21, 1994
    Date of Patent: July 23, 1996
    Assignee: Eastman Kodak Company
    Inventors: J. Michael Buchanan, Jared B. Mooberry, John Texter
  • Patent number: 5500331
    Abstract: 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: Grant
    Filed: May 25, 1994
    Date of Patent: March 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: David A. Czekai, Larry P. Seaman
  • Patent number: 5478705
    Abstract: 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: Grant
    Filed: May 25, 1994
    Date of Patent: December 26, 1995
    Assignee: Eastman Kodak Company
    Inventors: David A. Czekai, Dennis E. Smith, John F. Bishop, Paul E. Woodgate, James R. Bennett
  • Patent number: 5462843
    Abstract: 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: Grant
    Filed: September 20, 1994
    Date of Patent: October 31, 1995
    Assignee: Agfa-Gevaert AG
    Inventors: Sieghart Klotzer, Bruno Mucke
  • Patent number: 5441854
    Abstract: 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: Grant
    Filed: July 18, 1994
    Date of Patent: August 15, 1995
    Assignee: Eastman Kodak Company
    Inventors: John Texter, Wayne A. Bowman, Glenn T. Pearce
  • Patent number: 5434036
    Abstract: 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: Grant
    Filed: May 20, 1994
    Date of Patent: July 18, 1995
    Assignee: Eastman Kodak Company
    Inventor: John Texter
  • Patent number: 5415980
    Abstract: 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: Grant
    Filed: March 25, 1994
    Date of Patent: May 16, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Naoto Ohshima
  • Patent number: 5405736
    Abstract: 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: Grant
    Filed: December 23, 1992
    Date of Patent: April 11, 1995
    Assignee: Eastman Kodak Company
    Inventor: David J. Young
  • Patent number: 5401623
    Abstract: 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: Grant
    Filed: October 5, 1992
    Date of Patent: March 28, 1995
    Assignee: Eastman Kodak Company
    Inventor: John Texter
  • Patent number: 5298375
    Abstract: 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: Grant
    Filed: November 17, 1992
    Date of Patent: March 29, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yasuaki Deguchi
  • Patent number: 5298386
    Abstract: 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: Grant
    Filed: June 9, 1992
    Date of Patent: March 29, 1994
    Assignee: Eastman Kodak Company
    Inventor: David A. Czekai
  • Patent number: 5298368
    Abstract: 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: Grant
    Filed: April 23, 1991
    Date of Patent: March 29, 1994
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, Edward Schofield, Stephen P. Singer
  • Patent number: 5260176
    Abstract: 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: Grant
    Filed: January 8, 1992
    Date of Patent: November 9, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigeaki Otani, Yoji Okazaki
  • Patent number: 5250405
    Abstract: 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: Grant
    Filed: August 29, 1991
    Date of Patent: October 5, 1993
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, Stephen P. Singer
  • Patent number: 5240821
    Abstract: 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: Grant
    Filed: December 19, 1991
    Date of Patent: August 31, 1993
    Assignee: Eastman Kodak Company
    Inventors: John Texter, William B. Travis, Jared B. Mooberry
  • Patent number: 5238790
    Abstract: 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: Grant
    Filed: December 19, 1991
    Date of Patent: August 24, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Shimura, Hidetoshi Kobayashi, Hideaki Naruse
  • Patent number: 5232821
    Abstract: 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: Grant
    Filed: April 1, 1991
    Date of Patent: August 3, 1993
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, Edward Schofield
  • Patent number: 5215875
    Abstract: 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: Grant
    Filed: June 7, 1991
    Date of Patent: June 1, 1993
    Assignee: Agfa Gevaert Aktiengesellschaft
    Inventors: Reinhart Matejec, Hans Vetter, Heinrich Odenwalder
  • Patent number: 5206120
    Abstract: 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: Grant
    Filed: December 13, 1990
    Date of Patent: April 27, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroshi Hayashi
  • Patent number: 5200307
    Abstract: A silver halide color photographic material containing a support having thereon photographic constitutional layers, which comprises(a) a magenta coupler represented by formula (I) that is contained with a high-boiling organic solvent at a prescribed weight ratio in a magenta coupler containing layer, and(b) a ultraviolet absorbing agent represented by formula (II) that is contained with a hydrophobic polymer in a non-photosensitive layer located at a position farther than a cyan coupler containing emulsion layer for the base: ##STR1## wherein R.sub.1 represents a hydrogen atom or a substituent, Z.sub.a, Z.sub.b, and Z.sub.c each represent a methine, substituted methine, .dbd.N--, or --NH--, Y represents a hydrogen atom or a group capable of being released upon a coupling reaction with the oxidized product of a developing agent, and the compound may form a dimer or higher polymer through R.sub.1, Y, or Z.sub.a, Z.sub.b, or Z.sub.c, that is a substituted methine, ##STR2## wherein R.sub.2, R.sub.3, and R.sub.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: April 6, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Osamu Takahashi