Patents Represented by Attorney, Agent or Law Firm Sarah Meeks Roberts
  • Patent number: 5660974
    Abstract: A composition for developing a silver halide color photographic material comprising a color developing agent and a hydroxylamine compound represented by Formula I or II: ##STR1## wherein Stab is a stabilizing group such that when the hydroxylamine compound is added to a test developer solution of the following formula the pH of the test developer solution decreases less than 0.12 at an aeration time of 90 hours:TABLE 1 ______________________________________ Developer Formulation Components Quantity/L ______________________________________ Lithium salt of sulfonated 0.25 mL Polystyrene (30% wt/wt Liq) Triethanolamine 11.0 mL Stilbene Stain-Reducing Agent 2.3 g Hydroxylamine compound 0.05 moles Lithium Sulfate 2.7 g 1-Hydroxyethylidene-1-diphosphonic 0.8 mL acid (60% wt/wt Liq) Potassium Chloride 1.8 g Potassium Bromide 0.2 g 4-amino-3-methyl-N-ethyl-N-(.beta.- 4.85 g methanesulfonamidoethyl)aniline (color developer) Potassium Carbonate 25.0 g Water to 1 L solution pH adjusted to 10.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: August 26, 1997
    Assignee: Eastman Kodak Company
    Inventors: Carl Anthony Marrese, Sucheta Tandon, Robert James Perry, Lynda Woedy McGarry
  • Patent number: 5652090
    Abstract: This invention provides a silver halide photographic element comprising a silver halide emulsion in reactive association with a dithiolone compound represented by the following formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently H, or aliphatic, aromatic or heterocyclic groups, alkoxy groups, hydroxy groups, halogen atoms, aryloxy groups, alkylthio groups, arylthio groups, acyl groups, sulfonyl groups, acyloxy groups, carboxyl groups, cyano groups, sulfo groups, or amino groups, or R.sup.1 and R.sup.2 together represent the atoms necessary to form a five or six-membered ring or a multiple ring system. This invention further provides a method of making silver halide emulsions containing the dithiolone compounds.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: July 29, 1997
    Assignee: Eastman Kodak Company
    Inventor: Roger Lok
  • Patent number: 5645980
    Abstract: An aqueous solution for rinsing silver halide photographic elements comprising a nonionic surfactant and an anionic surfactant, wherein the solution has a surface tension of 32 dynes/cm or less and a method for using the rinsing solution.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: July 8, 1997
    Assignee: Eastman Kodak Company
    Inventors: Hugh Gerald McGuckin, John Stuart Badger, Ronald Anthony Gogle, Paul Joseph Riesenberger, Michael William Orem
  • Patent number: 5641616
    Abstract: A non-rehalogenating bleaching composition for processing imagewise exposed and developed silver halide photographic elements comprising hydrogen peroxide, or a compound which releases hydrogen peroxide, and at least one compound of Formula I[MO.sub.2 C--(L.sup.1).sub.p ].sub.q --R--[(L.sup.2).sub.n --CO.sub.2 M].sub.m (I)wherein R is a substituted or unsubstituted aromatic hydrocarbon group, or a substituted or unsubstituted aromatic heterocyclic group containing at least one oxygen, nitrogen or sulfur atom;L.sup.1 and L.sup.2 are each independently a substituted or unsubstituted linking group wherein the linking group is attached to the carboxyl group by a carbon;n and p are independently 1 or 0;m and q are independently 0, 1, 2, 3, 4, 5, or 6 and the sum of m+q is at least 1; andM is a hydrogen atom, an alkali metal, an alkalineearth metal or an ammonium ion.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: June 24, 1997
    Assignee: Eastman Kodak Company
    Inventors: Sidney Joseph Bertucci, Shirleyanne Elizabeth Haye, Eric Richard Schmittou
  • Patent number: 5641615
    Abstract: Imagewise exposed and developed black and white or color silver halide photographic elements are effectively bleached using a non-rehalogenating peroxide bleaching composition. This bleaching composition comprises hydrogen peroxide, or a precursor that can release hydrogen peroxide, and has a pH from 2 to 6, and at least one compound of Formula I:R--(O).sub.n --SO.sub.3 M (I)wherein R is a group having 1 to 10 carbon atoms; n is 0 or 1; and M is a hydrogen atom, an alkali metal, an alkaline earth metal or an ammonium ion. Moreover, the bleaching composition is substantially free of rehalogenating agents, as well as complexes of a high valent metal ion and a polycarboxylic acid, an aminocarboxylic acid or a phosphonic acid.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: June 24, 1997
    Assignee: Eastman Kodak Company
    Inventors: Shirleyanne Elizabeth Haye, Sidney Joseph Bertucci, Eric Richard Schmittou
  • Patent number: 5633124
    Abstract: This invention provides a process for removal of silver halide from a silver halide photographic recording material by a processing solution with fixing ability (a fixer) containing thiosulfate as a fixing agent conducted in the presence of a thioether compound incorporated within a fixer formulation. It further provides a fixer formulation for use in said process. The fixer contains a maximum ammonium ion concentration of 0.9M.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: May 27, 1997
    Assignee: Eastman Kodak Company
    Inventors: Eric R. Schmittou, Jacob J. Hastreiter, Jr., Stuart T. Gordon
  • Patent number: 5620841
    Abstract: A photographic element comprising a support having situated thereon a silver halide emulsion layer, said emulsion layer comprising a compound of the formula:Z--SO.sub.2 S--Au(I)--SQ (I)whereinZ represents an alkyl, aryl, or heterocyclic group; andQ represents an aryl or heterocyclic group.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: April 15, 1997
    Assignee: Eastman Kodak Company
    Inventors: Roger Lok, Weimar W. White
  • Patent number: 5620837
    Abstract: This invention provides a color silver halide photographic element comprising a support having situated thereon a red light-sensitive, cyan dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; a green light-sensitive, magenta dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; and a blue light-sensitive, yellow dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; wherein at least one of the dye-forming units comprises two or more emulsion layers spectrally sensitized to the same region of the visible spectrum, but exhibiting different photographic sensitivities, each such emulsion layer containing an image dye-forming coupler wherein at least one, but not all, of the emulsion layers of the dye-forming unit contains the hydrolyzed or unhydrolyzed form of a benzazolium compound represented by formula (I): ##STR1##
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: April 15, 1997
    Assignee: Eastman Kodak Company
    Inventors: Sang H. Kim, Arlyce T. Bowne, Thomas J. Dannhauser
  • Patent number: 5614360
    Abstract: A photographic element and an aqueous coating composition for providing a layer to a photographic element are disclosed. The coating composition comprises gelatin in a concentration greater than about 6% by weight, and a palladium complex having the structure: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, and R.sup.8 are independently selected from hydrogen, alkyl, alkenyl, aryl or alkaryl, the alkyl, alkenyl, aryl, or alkaryl optionally being substituted with a hydroxy, sulfonate, amino or ammonium group; and wherein any two of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, and R.sup.8 can be bonded to form a ring;Z.sup.1 and Z.sup.
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: March 25, 1997
    Assignee: Eastman Kodak Company
    Inventors: Kenneth G. Harbison, Wilbur S. Gaugh, Thomas H. Whitesides, James A. Friday
  • Patent number: 5601970
    Abstract: This invention provides a photographic element comprising a support having thereon a silver halide emulsion layer which is greater than about 50 mole % silver chloride, wherein the emulsion layer contains a thiophosphate ester of the structure: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are independently selected from the group consisting of an aliphatic, carbocyclic or heterocyclic group.
    Type: Grant
    Filed: January 3, 1995
    Date of Patent: February 11, 1997
    Assignee: Eastman Kodak Company
    Inventor: Roger Lok
  • Patent number: 5597686
    Abstract: The present invention provides a photographic emulsion comprising a silver halide grains containing at least two dopants. The dopants comprise an osmium-based transition metal complex containing a nitrosyl or thionitrosyl ligand, and a transition metal complex containing a transition metal selected from Group 8 of the periodic table.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: January 28, 1997
    Assignee: Eastman Kodak Company
    Inventors: Gladys L. MacIntyre, Eric L. Bell
  • Patent number: 5578432
    Abstract: A stabilizing bath that provides image stability and uniform drainage of excess fluid to prevent drying spots and that reduces or eliminates the formation of residue on the base side of color negative films is comprised of hexamethylenetetramine, a nonionic polyethoxylated surfactant, and an anionic sulfate or sulfonate surfactant. The stabilizing bath is used as the final processing bath prior to drying. The nonionic surfactant provides uniform drainage of excess fluid and the anionic sulfate or sulfonate surfactant functions to reduce or eliminate the formation of residue on the base side of color negative films.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: November 26, 1996
    Assignee: Eastman Kodak Company
    Inventors: Hugh G. McGuckin, John S. Badger, Michael W. Orem
  • Patent number: 5576158
    Abstract: A color reversal photographic element comprises a support bearing a red-sensitive, cyan dye-forming unit, a green-sensitive, magenta dye-forming unit, and a blue-sensitive, yellow dye-forming unit, each unit comprising a photosensitive silver halide layer and an image-dye forming coupler; the element contains an interimage effect-controlling means which is characterized as having the capability of simultaneously forming a red image of high relative chroma and a yellow-red tint image of substantially lower relative chroma when the element is exposed to a red color standard object having CIELab values for D.sub.55 reference white a*=30.46, b*=19.16, C*=35.98, L*=40.12 and a yellow-red tint color standard object having CIELab values for D.sub.55 reference white a*=17.26, b*=18.01, C*=24.95, L*=66.98; the resulting images have a red reproduction coefficient equal to or greater than 0.88 and a ratio of red reproduction coefficient to yellow-red tint reproduction coefficient equal to or greater than 1.15.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: November 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: Frederick E. Ford, Arlyce T. Bowne, Carl Kotlarchik, Jr.
  • Patent number: 5576432
    Abstract: A process of preparing a dihydropyrimidine compound of the structure (I): ##STR1## wherein R.sup.1 and R.sup.2 are bonded together to form an aromatic or heterocyclic ring, which may be substituted or unsubstituted, or are individually selected from the group consisting of hydrogen, or a substituted or unsubstituted aliphatic, carbocyclic, or heterocyclic group;R.sup.3, R.sup.4 and R.sup.5 are individually selected from the group consisting of hydrogen or a substituted or unsubstituted aliphatic, carbocyclic or heterocyclic group; andX represents the atoms necessary to form a 5 or 6 membered heterocyclic ring, and is selected from the group consisting of oxygen, sulfur, selenium, ##STR2## wherein R.sup.6, R.sup.7, and R.sup.8 are individually selected from the group consisting of a substituted or unsubstituted aliphatic, carbocyclic or heterocyclic group; comprising combining a compound (A) of the structure: ##STR3## wherein X, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, and R.sup.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: November 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: Roger Lok, Antony J. Williams
  • Patent number: 5576170
    Abstract: A photographic element comprising a support having situated thereon a silver halide emulsion, the emulsion comprising an alkynylamine compound of the formula: wherein Z represents atoms necessary to complete a 5 to 10-membered heterocyclic ring system, R.sup.1 represents hydrogen or an alkyl of from 1 to 5 carbon atoms, and R.sup.2 represents hydrogen, or an alkyl, aryl, heteroaryl, carbocyclic or heterocyclic group; andat least one dihydroxy aryl compound represented by formula II or III: ##STR1## wherein R.sup.3 to R.sup.12 are independently selected from the group consisting of hydrogen, hydroxy, sulfonate, or an alkyl of from 1 to 5 carbon atoms, and wherein at least two of such groups represent a hydroxy group.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: November 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: Jon N. Eikenberry, Robert E. Bernard
  • Patent number: 5573896
    Abstract: A method of processing an imagewise exposed silver halide photographic element comprising developing and desilvering the photographic element in a low volume thin tank processor wherein the processor operates at 15% or less of maximum production capacity.
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: November 12, 1996
    Assignee: Eastman Kodak Company
    Inventors: Jerel R. Carli, David G. Foster, Edgar P. Gates, David L. Patton, John H. Rosenburgh, Sheridan E. Vincent
  • Patent number: 5567577
    Abstract: A photographic element comprising a support having located thereon at least one silver halide emulsion layer, the element containing a release compound that provides a non-imagewise distribution of a photographically active moiety, the release compound comprising a blocking group from which the photographically active moiety is released, the release compound further comprising a ballasting group other than a coupler moiety, and an aqueous solubilizing group, both the ballasting group and the aqueous solubilizing group being attached to the blocking group.
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: October 22, 1996
    Assignee: Eastman Kodak Company
    Inventors: Thomas R. Welter, David A. Dickinson, Keath T. Chen
  • Patent number: 5561031
    Abstract: A color reversal photographic element having a light sensitive silver halide emulsion layer, and a second layer containing a light insensitive silver halide emulsion. The element additionally has a bleach accelerating releasing compound in the second layer or in a layer associated therewith. A method of processing such elements is also provided.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: October 1, 1996
    Assignee: Eastman Kodak Company
    Inventor: Arlyce T. Bowne
  • Patent number: 5552265
    Abstract: The invention relates to a reversal color photographic print material.Said reversal material comprises a support with, in order, a substantially light-insensitive fine grain emulsion layer which does not take part in the image formation, a red-sensitive emulsion layer having associated therewith a cyan-forming compler, a green-sensitive emulsion having associated therewith a magenta-forming coupler, a blue-sensitive emulsion having associated therewith a yellow-forming coupler.This arrangement allows to adjust the shape of the characteristic curve of red, green, blue-sensitive emulsion layers.
    Type: Grant
    Filed: August 16, 1994
    Date of Patent: September 3, 1996
    Assignee: Eastman Kodak Company
    Inventors: Francois J. Bredoux, Maurice E. Pfaff
  • 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