Organic Carboxylic, Sulfur Or Phosphorus Acid Or Salt Patents (Class 430/529)
  • Patent number: 6610469
    Abstract: The present invention provides a photothermographic material having an image-forming layer that contains a non-photosensitive silver salt of an organic acid, a photosensitive silver halide, a specific nucleating agent, a compound represented by the formula (1) and a binder on at least one side of a support: wherein P represents an oxygen atom, a sulfur atom or NH, Q represents an oxygen atom or a sulfur atom, Y represents OH, OM (M represents a counter ion) or NH2, L represents a divalent bridging group, and Z represents an alkyl group, an aryl group or a heterocyclic group.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: August 26, 2003
    Assignee: Fuji Photo Film, Co., Ltd.
    Inventor: Makoto Ishihara
  • Publication number: 20030148232
    Abstract: A coating composition for use in forming an overcoat layer in a photographic element, said composition comprising an aqueous solution of: a mixture of two or more surfactants; a hydrophilic binder; matte beads; and a lubricating agent; wherein one of the surfactants is represented by the following Formula (I):
    Type: Application
    Filed: May 28, 2002
    Publication date: August 7, 2003
    Inventors: Michael W. Orem, Ronald R. Andrews
  • Publication number: 20030134236
    Abstract: A composition for an antistat layer comprising: a chlorinated polyolefin; a conductive agent; and a solvent.
    Type: Application
    Filed: December 26, 2001
    Publication date: July 17, 2003
    Inventors: Debasis Majumdar, Richard A. Castle, Janglin Chen
  • Publication number: 20030134212
    Abstract: An imaging element comprising: a support; at least one image forming layer; and an antistat layer, wherein said antistat layer comprises: a chlorinated polyolefin and a conductive agent.
    Type: Application
    Filed: December 26, 2001
    Publication date: July 17, 2003
    Applicant: Eastman Kodak Company
    Inventors: Richard A. Castle, Janglin Chen, Debasis Majumdar
  • Publication number: 20030134211
    Abstract: An imaging material comprising a support having disposed thereon: a) at least one image-forming layer, and b) at least one transparent electrically conductive antistatic layer that comprises electronically conductive polymer particles, a neutral-charge conductivity enhancer, and a hydrophilic polymeric binder.
    Type: Application
    Filed: December 26, 2001
    Publication date: July 17, 2003
    Applicant: Eastman Kodak Company
    Inventors: Mark Lelental, Charles C. Anderson, John M. Pochan, James L. Wakley, James F. Elman
  • Patent number: 6589723
    Abstract: A fluorocompound denoted by general formula (1) below (wherein R1 denotes a substituted or unsubstituted alkyl group having a total of at least six carbon atoms, with R1 not being an alkyl group substituted with a fluorine atom; Rf denotes a perfluoroalkyl group having not more than six carbon atoms; either X1 or X2 denotes a hydrogen atom and the other denotes SO3M; M denotes a cation; and n denotes an integer of not less than 1) was disclosed. A silver halide photographic light-sensitive material having at least one layer comprising a light-sensitive silver halide emulsion layer on a support and comprising a compound denoted by general formula (1) above was also disclosed.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: July 8, 2003
    Assignee: Fuji Film Co., Ltd.
    Inventors: Junichi Yamanouchi, Terukazu Yanagi, Tomokazu Yasuda, Nobuo Hamamoto
  • Publication number: 20030113667
    Abstract: A planographic printing plate manufacturing method is disclosed which comprises the step of developing a presensitized planographic printing plate with a developer with a pH of from 11.5 to less than 12.5 which does not substantially contain an organic solvent, wherein the presensitized planographic printing plate comprises a support having a roughened hydrophilic surface with a center line average surface roughness Ra of from 0.5 to 0.8 &mgr;m, and provided thereon, a photopolymerizable light sensitive layer and an oxygen shielding layer in that order, the photopolymerizable light sensitive layer containing A) an addition polymerizable monomer having an ethylenic double bond, B) a photopolymerization initiator, C) a sensitizing dye, and D) a polymer binder, and the oxygen shielding layer containing E) polyvinyl alcohol and F) polyvinyl pyrrolidone.
    Type: Application
    Filed: August 8, 2002
    Publication date: June 19, 2003
    Inventor: Toshiyuki Matsumura
  • Patent number: 6566033
    Abstract: The invention relates to an imaging member and a method for use therewith comprising an imaging layer and a base wherein said base comprises a closed cell foam core sheet and adhered thereto an upper and lower flange sheet, and wherein said imaging member has a stiffness of between 50 and 250 millinewtons and is conductive.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: May 20, 2003
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Narasimharao Dontula, Suresh Sunderrajan, Peter T. Aylward, Kelly S. Robinson, Melvin M. Kestner
  • Patent number: 6551769
    Abstract: A silver halide photographic film element has been disclosed, said element comprising on a light-sensitive side of a transparent polyester support, and, in order, an electrically conductive subbing layer, an antihalation undercoat, a light-sensitive emulsion layer or multilayer arrangement, optionally including one or more intermediate, non-light-sensitive layers between emulsion layers in said multilayer arrangement, and a protective overcoat; and on a backing layer side opposite thereto, in order, a subbing layer containing a lubricant and a topcoat layer, characterized in that on the light-sensitive side of said element said subbing layer comprises an antistatic agent providing a substantially unchanged electrical resistivity of the said element before and after processing of said material, and said antihalation undercoat optionally comprises a high temperature boiling solvent; whereas on the backing layer side a friction coefficient of the backing layer versus stainless steel remains unchanged in the rang
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: April 22, 2003
    Assignee: Agfa-Gevaert
    Inventors: Kris Viaene, Etienne Van Thillo, Hartwig Andries
  • Patent number: 6521398
    Abstract: A polyester film is disclosed comprising on its upper side a latex subbing layer, and a gelatin subbing layer which contains a black spacing agent. This polyester film can be advantageously used as support for several imaging elements, such as photographic materials, (photo)thermographic materials, and ink jet recording elements.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: February 18, 2003
    Assignee: Agfa-Gevaert
    Inventors: Roland Claes, Etienne Van Thillo
  • Publication number: 20030022113
    Abstract: A silver halide photographic material comrises a support having first and second opposing surfaces, at least one light-sensitive emulsion layer that is provided on the first surface side, and a hydrophilic colloid layer that is provided on the second surface side, wherein the hydrophilic colloid layer comprises at least one compound represented by general formula (I) or general formula (II) below: 1
    Type: Application
    Filed: December 17, 2001
    Publication date: January 30, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: Takahiro Goto
  • Publication number: 20030013050
    Abstract: A coating composition comprising a solution of a substituted or unsubstituted thiophene-containing electrically-conductive polymer, a film-forming binder, and an organic solvent media; the media having a water content of less than 37 weight percent. Such a coating composition provides a means to protect an imaging element against the accumulation of static electrical charges before and after image processing while also providing the element with improved manufacturability and physical properties.
    Type: Application
    Filed: June 26, 2001
    Publication date: January 16, 2003
    Inventors: Dwight W. Schwark, Debasis Majumdar, Charles C. Anderson, Robert J. Kress
  • Publication number: 20030008247
    Abstract: Image-forming materials including photographic, thermographic, and thermally-developable imaging materials include one or more transparent electrically conductive, non-charging layers to provide antistatic control on one or both sides of subbed or unsubbed supports. The electrically conductive, non-charging layers comprise colloidal, electrically conductive polymer particles that can be dispersed in a film-forming binder in an amount to provide from about 10 to about 90 volume % of polymer particles. Particularly useful polymer particles include pyrrole-containing, thiophene-containing, and aniline-containing polymers. The particles generally exhibit a packed powder specific resistivity of 105 ohm-cm or less and generally have a mean diameter of 0.5 &mgr;m or less. The electrically conductive, non-charging layers generally exhibit a surface electrical resistivity of less than 1×1012 ohm per square.
    Type: Application
    Filed: May 6, 2002
    Publication date: January 9, 2003
    Inventors: Mark Lelental, Gary M. Mosehauer, Roger J. Owers, James L. Wakley
  • Publication number: 20020182533
    Abstract: The invention relates to a recording material for the production of offset printing plates having a web- or plate-form support, a radiation-sensitive layer on the front of the support and a continuous layer on its back. The back layer has a glass transition temperature Tg of at least 55° C. and a surface resistance of 106&OHgr; or less.
    Type: Application
    Filed: March 1, 2002
    Publication date: December 5, 2002
    Inventors: Steffen Denzinger, Michael Dorr
  • Patent number: 6475710
    Abstract: A photothermographic material is disclosed, comprising a light-sensitive silver halide, an organic silver salt, a reducing agent, a thiuronium salt and a binder, wherein the photothermographic material further contains at least one of compounds represented by formulas such as
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: November 5, 2002
    Assignee: Konica Corporation
    Inventors: Shinji Kudo, Keiko Chigusa, Hiroshi Kashiwagi
  • Patent number: 6475714
    Abstract: An image forming material comprising a support is disclosed. The support has, on at least one surface, a sublayer comprised of a styrenes-diolefin based copolymer, thereon an antistatic layer comprised of an electrically conductive composition prepared by mixing polymer particles having a functional group on the side chain with a water-soluble polymer, which interacts with said functional group, and thermally treating the resulting mixture at 50 to 90° C., and further having, on said antistatic layer, a layer comprised of a hydrophilic resin.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: November 5, 2002
    Assignee: Konica Corporation
    Inventors: Tadashi Arimoto, Takayuki Sasaki, Eiichi Ueda, Yasuo Kurachi
  • Patent number: 6472136
    Abstract: A method for forming a dispersion of an oil-soluble photographically useful compound in water or a hydrophilic colloid composition is disclosed, comprising dispersing the compound in the presence of a water-soluble anionic group containing polymeric surfactant, wherein the polymeric surfactant comprises a copolymer obtained from the copolymerization of a maleic anhydride monomer and a copolymerizable ethylenically unsaturated hydrophobic monomer and the anionic groups of the polymeric surfactant comprise primarily carboxy groups obtained upon base hydrolysis of the anhydride groups of the copolymer. The use of hydrolyzed maleic anhydride derived copolymers in place of conventional small-molecule surfactants as a dispersing agent to stabilize photographically active water-insoluble dye couplers or other organic oil-soluble photographically useful compounds enables a dramatic reduction of crystallization of such organic molecules on long-term keeping.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: October 29, 2002
    Assignee: Eastman Kodak Company
    Inventors: Julia S. Tan, Kurt M. Schroeder, Delaina A. Amos
  • Publication number: 20020123013
    Abstract: A silver halide photographic film element has been disclosed, said element comprising on a light-sensitive side of a transparent polyester support, and, in order, an electrically conductive subbing layer, an antihalation undercoat, a light-sensitive emulsion layer or multilayer arrangement, optionally including one or more intermediate, non-light-sensitive layers between emulsion layers in said multilayer arrangement, and a protective overcoat; and on a backing layer side opposite thereto, in order, a subbing layer containing a lubricant and a topcoat layer, characterized in that on the light-sensitive side of said element said subbing layer comprises an antistatic agent providing a substantially unchanged electrical resistivity of the said element before and after processing of said material, and said antihalation undercoat optionally comprises a high temperature boiling solvent; whereas on the backing layer side a friction coefficient of the backing layer versus stainless steel remains unchanged in the rang
    Type: Application
    Filed: October 1, 2001
    Publication date: September 5, 2002
    Inventors: Kris Viaene, Etienne Van Thillo, Hartwig Andries
  • Patent number: 6440654
    Abstract: A photographic imaging element is disclosed which comprises a support having on one side thereof at least one silver halide emulsion layer and having, in order, on the opposite side thereof an electrically-conductive layer coated from a coating composition comprising a polythiophene/polyanion composition containing a polythiophene with conjugated polymer backbone component and a polymeric polyanion component, and a protective topcoat comprised of a polyurethane binder which has a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50000 lb/in2; wherein the electrical resistivity of the electrically-conductive layer before photographic processing is less than 2×109 &OHgr;/□, after photographic processing is between 1×109 &OHgr;/□ and 1×1011 &OHgr;/□, and increases by at least one order of magnitude as a result of photographic processing.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: August 27, 2002
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Mario D. DeLaura, Debasis Majumdar
  • Patent number: 6432606
    Abstract: A red sensitive photographic recording material is disclosed having an emulsion layer with low silver halide and low binder content. It further comprises a polyester support having subbing layers on both sides and an anti-halation layer on the back side.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: August 13, 2002
    Assignee: Agfa-Gevaert
    Inventors: Roland Claes, Stefaan Lingier, Etienne Van Thillo
  • Patent number: 6387611
    Abstract: There is disclosed an oxidation-reduction imaging forming composition comprising an aqueous based dispersion of (i) nanoparticulate silver carboxylate particles having on the surface of the particles a surface modifier which is a phosphoric acid ester and (ii) an organic reducing agent. In particular, the surface modifiers can be mixtures of mono- and di-esters of orthophosphoric acid and hydroxyl-terminated, oxyethylated long-chain alcohols or oxyethylated alkyl phenols or derivatives thereof. Also disclosed are various compositions including the dispersions including oxidation-reduction imaging forming compositions, thermographic elements and photothermographic compositions and elements. The preferred carboxylate is a silver salt of a long chain fatty acid such as silver behenate.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: May 14, 2002
    Assignee: Eastman Kodak Company
    Inventors: Mark Lelental, David A. Dickinson, James L. Wakley, Michael W. Orem, Peter J. Ghyzel
  • Patent number: 6355406
    Abstract: A process for forming an abrasion-resistant antistatic layer for an imaging element comprises: adjusting the pH of an aqueous composition of an electronically-conductive polymer to a pH of about 3 to about 10, and combining the pH-adjusted aqueous composition of the electronically-conductive polymer with an aqueous composition at a pH greater than 7 of a polyurethane film-forming binder having a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50000 psi. The process further comprises applying the resulting coating composition to the imaging element, thereby forming an abrasion-resistant antistatic layer on the element. The antistatic layer coating composition of the present invention can be applied to a wide variety of imaging elements, including, for example, photographic, electrostatographic, photothermographic, migration, electrothermographic, dielectric recording and thermal-dye-transfer imaging elements.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: March 12, 2002
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Dennis J. Eichorst, Kenneth L. Tingler
  • Patent number: 6346370
    Abstract: A photographic element having an antistatic layer comprising: a conductive agent, a colloidal sol, and a polymeric film-forming binder having a peel strength of 400 g or greater on a polypropylene surface.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: February 12, 2002
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Charles C. Anderson
  • Publication number: 20020015925
    Abstract: An image forming material comprising a support is disclosed. The support has, on at least one surface, a sublayer comprised of a styrenes-diolefin based copolymer, thereon an antistatic layer comprised of an electrically conductive composition prepared by mixing polymer particles having a functional group on the side chain with a water-soluble polymer, which interacts with said functional group, and thermally treating the resulting mixture at 50 to 90° C., and further having, on said antistatic layer, a layer comprised of a hydrophilic resin.
    Type: Application
    Filed: March 2, 2001
    Publication date: February 7, 2002
    Applicant: KONICA CORPORATION
    Inventors: Tadashi Arimoto, Takayuki Sasaki, Eiichi Ueda, Yasuo Kurachi
  • Patent number: 6333145
    Abstract: A method for producing a polymeric conductive layer on an object comprising the steps of: providing an aqueous composition containing a polythiophene, a polyanion compound and an aprotic compound with a dielectric constant, &egr;, ≧15, applying said composition to said object forming a layer and drying said layer to form a conductive polymeric layer on said object, characterised in that during said production said object and said layer are kept at a temperature below 100° C. and said conductive polymeric layer has a resistivity of at most 2 k&OHgr;/square.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: December 25, 2001
    Assignee: Agfa-Gevaert
    Inventors: Tom Cloots, Johan Loccufier, Frank Louwet, Hieronymus Andriessen
  • Publication number: 20010044492
    Abstract: A coating composition comprising a solution of an electrically-conductive polymer and an organic solvent media wherein the solvents are selected from the group consisting of alcohols, ketones, cycloalkanes, arenes, esters, glycol ethers and their mixtures; the media having a water content of less than 12 weight percent. Such a coating composition provides a means to protect an imaging element against the accumulation of static electrical charges before and after image processing while also providing the element with improved manufacturability and physical properties.
    Type: Application
    Filed: June 13, 2001
    Publication date: November 22, 2001
    Inventors: Dwight W. Schwark, Debasis Majumdar, Charles C. Anderson, Robert J. Kress
  • Patent number: 6316175
    Abstract: A silver halide photographic material has been provided, having in a layer arrangement at one or both sides of a subbed support, corresponding with a single-side coated or a double-side coated material respectively, one or more layer(s) comprising a light-sensitive silver halide emulsion, one or more protective antistress layer(s) and, optionally, an outermost afterlayer, wherein at least one of said layers, subbing layer(s) inclusive, further comprises means in order to provide, when conditioned at a relative humidity of at most 30%, an electrical resistance, measured as described in Research Disclosure June 1992, item 33840, of from 4×109 &OHgr;/sq. up to 5×1010 &OHgr;/sq. for the layer having the lowest resistance.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: November 13, 2001
    Assignee: Agfa-Gevaert
    Inventors: Marc Van den Zegel, Etienne Van Thillo, Bavo Muys
  • Patent number: 6306572
    Abstract: A substantially light-insensitive black and white thermographic material including a support and a thermosensitive element, containing a substantially light-insensitive organic silver salt, a reducing agent therefor in thermal working relationship therewith and a binder, wherein the binder is a water-dispersible film-forming polymer with covalently bonded moieties with one or more acid groups or anhydrides thereof and the thermographic material is thermally developable under substantially water-free conditions; and a process for producing the substantially light-insensitive black and white thermographic material comprising the steps of: producing an aqueous dispersion of the substantially light-insensitive organic silver salt; producing one or more aqueous coating compositions containing together the aqueous dispersion of the substantially light-insensitive organic silver salt, the reducing agent and the binder; and applying the one or more aqueous coating compositions to the support thereby forming after dry
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: October 23, 2001
    Assignee: Agfa-Gevaert
    Inventors: Carlo Uyttendaele, Huub Van Aert, Frank Louwet, Ivan Hoogmartens
  • Patent number: 6303281
    Abstract: A silver halide photographic element comprises a support having thereon at least one light-sensitive silver halide emulsion layer and a light-insensitive protective layer, the light-insensitive protective layer comprising an ultraviolet absorbing layer closer to the support and an outermost protective layer, the ultraviolet absorbing layer comprising an ultraviolet aborbing dye, a high boiling organic solvent, and a hydrophilic binder, the outermost protective layer comprising insoluble matte particles having a mean particle size of larger than 0.5 &mgr;m, dispersed polymer particles having a mean size of less than 0.2 &mgr;m, and a glass transition temperature of at least 70° C., and a hydrophilic binder.
    Type: Grant
    Filed: February 21, 1996
    Date of Patent: October 16, 2001
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Melvin Michael Kestner, Alfred Bruce Fant, Dennis Edward Smith
  • Publication number: 20010029001
    Abstract: There is disclosed an oxidation-reduction imaging forming composition comprising an aqueous based dispersion of (i) nanoparticulate silver carboxylate particles having on the surface of the particles a surface modifier which is a phosphoric acid ester and (ii) an organic reducing agent. In particular, the surface modifiers can be mixtures of mono- and di-esters of orthophosphoric acid and hydroxyl-terminated, oxyethylated long-chain alcohols or oxyethylated alkyl phenols or derivatives thereof. Also disclosed are various compositions including the dispersions including oxidation-reduction imaging forming compositions, thermographic elements and photothermographic compositions and elements. The preferred carboxylate is a silver salt of a long chain fatty acid such as silver behenate.
    Type: Application
    Filed: January 18, 2001
    Publication date: October 11, 2001
    Applicant: Eastman Kodak Company
    Inventors: Mark Lelental, David A. Dickinson, James L. Wakley, Michael W. Orem, Peter J. Ghyzel
  • Patent number: 6300049
    Abstract: The present invention can relate to an imaging element including a support, at least one image forming layer superposed on the support, at least one transparent magnetic recording layer superposed on the support, and an electrically-conductive layer superposed on the support. The electrically-conductive layer may include a sulfonated polyurethane film-forming binder and at least one metal antimonate particle.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: October 9, 2001
    Assignee: Eastman Kodak Company
    Inventors: Dennis J. Eichorst, Debasis Majumdar, Robert J. Kress
  • Patent number: 6300052
    Abstract: A substantially light-insensitive black and white thermographic material comprising a support and a thermosensitive element containing a substantially light-insensitive organic silver salt, a reducing agent therefor in thermal working relationship therewith and a binder, wherein the binder is a water-dispersible film-forming polymer having covalently bonded ionic groups and the thermographic material is thermally developable under substantially water-free conditions; and a process for producing the substantially light-insensitive black and white thermographic material comprising the steps of: producing an aqueous dispersion of the substantially light-insensitive organic silver salt; producing one or more aqueous coating compositions containing together the aqueous dispersion of the substantially light-insensitive organic silver salt, the reducing agent and the binder; and applying the one or more aqueous coating compositions to the support, thereby forming after drying the thermosensitive element.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: October 9, 2001
    Assignee: Agfa-Gevaert
    Inventors: Frank Louwet, Huub Van Aert, Frank Ruttens, Ivan Hoogmartens
  • Publication number: 20010019813
    Abstract: The present invention can relate to an imaging element including a support, at least one image forming layer superposed on the support, at least one transparent magnetic recording layer superposed on the support, and an electrically-conductive layer superposed on the support. The electrically-conductive layer may include a sulfonated polyurethane film-forming binder and at least one metal antimonate particle.
    Type: Application
    Filed: December 12, 2000
    Publication date: September 6, 2001
    Inventors: Dennis J. Eichorst, Debasis Majumdar, Robert J. Kress
  • Publication number: 20010016303
    Abstract: A process for forming an abrasion-resistant antistatic layer for an imaging element comprises: adjusting the pH of an aqueous composition of an electronically-conductive polymer to a pH of about 3 to about 10, and combining the pH-adjusted aqueous composition of the electronically-conductive polymer with an aqueous composition at a pH greater than 7 of a polyurethane film-forming binder having a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50000 psi. The process further comprises applying the resulting coating composition to the imaging element, thereby forming an abrasion-resistant antistatic layer on the element. The antistatic layer coating composition of the present invention can be applied to a wide variety of imaging elements, including, for example, photographic, electrostatographic, photothermographic, migration, electrothermographic, dielectric recording and thermal-dye-transfer imaging elements.
    Type: Application
    Filed: December 12, 2000
    Publication date: August 23, 2001
    Inventors: Debasis Majumdar, Dennis J. Eichorst, Kenneth L. Tingler
  • Patent number: 6225039
    Abstract: The present invention is an imaging element which includes a support, an image-forming layer superposed on the support, a transparent magnetic recording layer superposed on the support and an electrically-conductive layer superposed on the support. The electrically-conductive layer is composed of a sulfonated polyurethane film-forming binder and an electrically-conductive agent.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: May 1, 2001
    Assignee: Eastman Kodak Company
    Inventors: Dennis J. Eichorst, Debasis Majumdar, Robert J. Kress
  • Patent number: 6207361
    Abstract: The invention relates to a photographic film imaging material comprising at least one silver halide layer and a base material comprising at least one extruded layer comprising a polymeric anti-static material.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: March 27, 2001
    Assignee: Eastman Kodak Company
    Inventors: Jehuda Greener, Debasis Majumdar, Thomas M. Laney
  • Patent number: 6197486
    Abstract: The invention relates to a reflection photographic imaging material comprising at least one silver halide layer and a base material comprising at least one extruded layer comprising a polymeric antistatic material.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: March 6, 2001
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Jehuda Greener, Thomas M. Laney
  • Patent number: 6190846
    Abstract: The present invention is an imaging element which includes a support, an image-forming layer superposed on the support and an electrically-conductive layer superposed on the support. The electrically-conductive layer is composed of an electrically-conductive polymer and a polyurethane film-forming binder having a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50000 psi.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: February 20, 2001
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Dennis J. Eichorst, Kenneth L. Tingler
  • Patent number: 6187521
    Abstract: The present invention is an imaging element which includes a support, an image forming layer superposed on the support; and at least one layer superposed on the support. The at least one layer superposed on the support is formed from a non-aqueous coating composition of a composite wax particle composed of a wax phase and a non-crosslinked polymer phase and an organic solvent. The wax phase includes a wax having a melting point of greater than 30° C. The wax comprises greater than 80% by weight of the wax phase. The wax phase to non-crosslinked polymer phase ratio is greater than 30/70 and less than 90/10.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: February 13, 2001
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Janglin Chen, Dwight W. Schwark, James L. Bello
  • Patent number: 6171769
    Abstract: The present invention is a photographic element including a support with a polyolefin resin layer, which is preferably polypropylene, on each surface of the support. The photographic element includes a print or backmark retaining and spliceable antistatic layer having a dry coverage of from 10 mg/m2 to 10,000 mg/m2 on one of the free surfaces of the polyolefin layers. An imaging layer may be superimposed on the other free surface of the polyolefin layers. The antistatic layer includes a (i) conductive agent, preferably a combination of an alkali metal salt and a polymerized alkylene oxide, (ii) colloidal silica, preferably aluminum modified colloidal silica and (iii) a polymeric film-forming binder with a peel strength of 200 g or above on a polypropylene surface on which the antistatic layer of the present invention is to be formed.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: January 9, 2001
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Charles C. Anderson
  • Patent number: 6168911
    Abstract: The present invention is an imaging element which includes a support, an image-forming layer superposed on the support and an electrically-conductive layer superposed on the support. The electrically-conductive layer includes an electrically-conductive particle having an average particle size less than 0.1 micrometer and a binder, said binder comprising at least 25 weight percent of a polyesterionomer.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: January 2, 2001
    Assignee: Eastman Kodak Company
    Inventors: Mark Lelental, John M. Noonan, Ralph H. Young
  • Patent number: 6162596
    Abstract: An imaging element comprising;a support;at least one image forming layer superposed on the support; and anelectrically-conductive layer superposed on the support; said electrically-conductive layer comprising a substituted or unsubstituted thiophene-containing electrically-conductive polymer and a cellulosic polymer binder. Such an electrically-conductive layer provides protection against the accumulation of static electrical charges before and after image processing and provides improved physical properties.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: December 19, 2000
    Assignee: Eastman Kodak Company
    Inventors: Dwight W. Schwark, Debasis Majumdar, Charles C. Anderson, Robert J. Kress
  • Patent number: 6153368
    Abstract: A photographic element which includes a support having a frontside and a backside, at least one silver halide emulsion layer superposed on the frontside of the support; and a protective overcoat layer superposed on the backside of the support. The protective overcoat layer is formed from a coating solution comprising a continuous liquid organic medium having therein a mixture of dispersed core/shell polymer particles and a soluble polymer. The core/shell polymer particles comprise a core portion, which is insoluble in the organic medium, and a shell portion which has an affinity for both the core portion and the organic medium and has an acid number of from 25 to 200. The soluble polymer has an acid number of from 70 to 500 and the acid number of the soluble polymer is greater than the acid number of the shell of the core/shell polymer particles.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: November 28, 2000
    Assignee: Eastman Kodak Company
    Inventors: Dwight W. Schwark, Yongcai Wang, Charles C. Anderson
  • Patent number: 6140030
    Abstract: In accordance with the present invention a photographic element contains a first electrically-conductive layer and a second electrically-conductive layer. The first conductive layer has an electrical resistivity of less than 1.times.10.sup.9 .OMEGA./.quadrature. before film processing and an electrical resistivity of greater than 1.times.10.sup.11 .OMEGA./.quadrature. after film processing. The second conductive layer has an electrical resistivity of between 1.times.10.sup.9 .OMEGA./.quadrature. and 1.times.10.sup.11 .OMEGA./.quadrature. both before and after film processing. Both of the electrically-conductive layers are transparent. In an alternative embodiment, the photographic element contains a transparent electrically-conductive layer containing a first electrically-conductive agent and a second electrically-conductive agent. The electrically-conductive layer has an electrical resistivity of less than 1.times.10.sup.9 .OMEGA./.quadrature.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: October 31, 2000
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Mario D. DeLaura
  • Patent number: 6130030
    Abstract: The present invention is a photographic element having a support, at least one silver halide emulsion layer superposed on the support, at least one electrically conductive layer superposed on the support and a protective overcoat superposed on the support. The electrically conductive layer is composed of an electrically conductive agent and a binder. The protective overcoat includes a polyurethane having a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50,000 lb/in.sup.2 and an interpolymer comprising repeating units of A and B wherein A comprises a fluorine containing acrylate or a fluorine containing methacrylate monomer and B comprises an ethylenically unsaturated monomer containing hydratable groups.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: October 10, 2000
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Brian A. Schell
  • Patent number: 6124083
    Abstract: The present invention is an imaging element which includes a support, an image-forming layer superposed on the support and an electrically-conductive layer superposed on the support. The electrically-conductive layer is composed of a sulfonated polyurethane film-forming binder and an electrically-conductive polymer.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: September 26, 2000
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Dennis J. Eichorst, Charles C. Anderson, Dennis J. Savage
  • Patent number: 6114079
    Abstract: The present invention is an imaging element including a support having a frontside and a backside, an imaging layer superposed on the frontside of said support, and a print-retaining, electrically-conductive layer superposed on the backside of the support. The electrically-conductive layer includes a film-forming binder comprising the latex polymeric addition product of from 20 to 65 mol % of styrene, from 30 to 78 mol % of n-butyl methacrylate, and from 2 to 10 mol % of the sodium salt of 2-sulfoethyl methacrylate. and at least about 60 weight percent composite electrically conductive particles. The composite electrically-conductive particles have a layer of electrically-conductive metal-containing crystallites overlying a nonconductive substrate particle. The electrically-conductive layer is formed by dispersing the composite electrically-conductive particles using polymeric milling media having a mean particle size less than 350 .mu.
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: September 5, 2000
    Assignee: Eastman Kodak Company
    Inventors: Paul A. Christian, Debasis Majumdar, Ibrahim M. Shalhoub, Dennis J. Eichorst
  • Patent number: 6107015
    Abstract: The present invention is a photographic element having a support, at least one silver halide emulsion layer superposed on a first side of the support and a protective overcoat superposed on a second said of the support. The protective overcoat includes a polyurethane having a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50,000 lb/in.sup.2, an interpolymer composed of repeating units of A and B wherein A comprises a fluorine containing acrylate or a fluorine containing methacrylate monomer and B comprises an ethylenically unsaturated monomer containing hydratable groups and an electrically conductive agent.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: August 22, 2000
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Brian A. Schell, Mario D. DeLaura
  • Patent number: 6103459
    Abstract: Novel compounds that may be used as chemical vapor deposition precursors, thermochromic materials, conductive polymers, light-emitting diode precursors, and molecular charge-transfer salt precursors are provided. In addition, a novel compound that can be used to make the aforementioned compounds is provided. Still further, another aspect of the present invention is to provide methods for making and using the novel compounds provided.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: August 15, 2000
    Assignee: Midwest Research Institute
    Inventor: Bruce Diel
  • Patent number: 6096491
    Abstract: The present invention is an imaging element which includes a support, an image-forming layer superposed on the support, an electrically-conductive layer superposed on the support and a protective topcoat overlying the electrically-conductive layer. The electrically-conductive layer contains an electrically-conductive polymer and has a water electrode resistivity (WER) value that is substantially unchanged upon subjecting of the imaging element to color photographic processing. The protective topcoat is composed of a polyurethane film-forming binder having a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50000 psi.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: August 1, 2000
    Assignee: Eastman Kodak Company
    Inventors: Debasis Majumdar, Dennis J. Eichorst, Kenneth L. Tingler