Ammonium Salt Patents (Class 430/528)
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Patent number: 12169355Abstract: A photographic paper comprising a base layer having an average surface roughness (Sa) of at least 0.7 pm and an outer-most layer comprising a hydrophilic colloid binder and colloidal silica, wherein: (i) the weight ratio of colloidal silica to hydrophilic colloid binder in the outer-most layer is 0.05:1 to 0.28:1; and (ii) the amount of colloidal silica present in the outer-most layer is in the range of 8 mg/m2 to 280 mg/m2. The photographic paper is useful for preparing ‘non-noisy’ photobooks.Type: GrantFiled: March 23, 2021Date of Patent: December 17, 2024Assignee: Fujifilm Manufacturing Europe B.V.Inventors: Wilhelmus Johannes Martinus Der Kinderen, Mattijs De Munnik, Dennis Imre Lubertus Termeczky, Elisabeth Maria Waltherus Van Limpt
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Patent number: 12111612Abstract: An electrophotographic photosensitive member capable of maintaining a charging ability during repeated use is provided. An electrophotographic photosensitive member having a support, a conductive layer, a photosensitive layer and a protective layer in this order, wherein the protective layer contains a binding resin and a metal oxide particle, the metal oxide particle has a core and a coating layer, the core and the coating layer each contain titanium oxide, and the coating layer further includes niobium.Type: GrantFiled: June 27, 2023Date of Patent: October 8, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Kunihiko Sekido, Masashi Nishi
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Patent number: 10162278Abstract: Disclosed herein is an electrophotographic photosensitive member in which leakage hardly occurs even in the case of using a layer containing metal oxide particles as an electrically conductive layer in the electrophotographic photosensitive member, and which is compatible with definition in output images, the electrophotographic photosensitive member sequentially including: a support, an electrically conductive layer, and a photosensitive layer, the electrically conductive layer containing a binder material and particles represented by General Formula (1). Nb2.00O5.00-XNY??(1) (In Formula (1), Nb is a niobium atom, O is an oxygen atom, N is a nitrogen atom, and 0.00<Y<X?4.00).Type: GrantFiled: February 21, 2018Date of Patent: December 25, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Jumpei Kuno, Kenichi Kaku, Taichi Sato, Takashi Anezaki, Atsushi Fujii
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Patent number: 7384732Abstract: The invention provides a method of manufacturing a photothermographic material excellent in coating stability with less haze in images, wherein the photothermographic material has, on at least one side of a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder and at least one non-photosensitive layer above the image forming layer relative to the support, wherein (1) both the image forming layer and the non-photosensitive layer are formed with an aqueous coating solution, and (2) the coating solution for the image forming layer contains a phthalic acid salt or a salt of a derivative thereof, as well as a photothermographic material formed therewith.Type: GrantFiled: July 13, 2005Date of Patent: June 10, 2008Assignee: FUJIFILM CorporationInventor: Hajime Nakagawa
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Patent number: 7306900Abstract: A silver halide color photosensitive material comprising at least one layer containing at least one compound selected from a group consisting of the following type 1 and type 2, and at least one layer containing at least one fluorine compound represented by the following general formula (A): (Type 1) Compound which undergoes a one-electron oxidation so as to form a one-electron oxidation product capable of, through subsequent bond cleavage reaction, releasing one or more electrons; (Type 2) Compound which undergoes a one-electron oxidation so as to form a one-electron oxidation product capable of, after subsequent bond formation reaction, releasing one or more electrons; Rf?X-M:??General formula (A) wherein Rf represents an alkyl group having 1 to 6 carbons which is substituted with at least one fluorine atom, X represents a divalent coupling group or a single bond, and M represents an anionic group, a cationic group or a betaine group.Type: GrantFiled: September 29, 2006Date of Patent: December 11, 2007Assignee: FUJIFILM CorporationInventor: Koichi Yokota
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Patent number: 7172855Abstract: Disclosed is a silver halide photographic light-sensitive material having a layer containing a compound of the following formula and a fluorine compound, and has a gamma of 5.0 or more for the optical density range of 0.3 to 3.0: wherein R1 is alkyl or alkenyl, R2 are H, alkyl, alkenyl, aralkyl or aryl, l1 is 1–10, m1 is 1–30, n1 is 0–4, a is 0 or 1, and Z1 is OSO3M or SO3M where M is cation.Type: GrantFiled: September 16, 2004Date of Patent: February 6, 2007Assignee: Fuji Photo Film Co., Ltd.Inventors: Shoji Yasuda, Yoshihisa Tsukada
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Patent number: 7166421Abstract: Black-and-white, aqueous-based, silver halide-containing photothermographic materials have increased stability both prior to use and after imaging with the incorporation of at least 0.005 g/m2 of a tetrafluoroborate salt.Type: GrantFiled: December 29, 2004Date of Patent: January 23, 2007Assignee: Eastman Kodak CompanyInventors: Sharon M. Simpson, Kumars Sakizadeh, Leif P. Olson
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Patent number: 7105284Abstract: Thermally developable materials including photothermographic and thermographic materials having an outermost backside layer that includes amorphous silica particles having a narrow particle size distribution. The narrower particle size distribution provides reduced haze and increased surface roughness that reduces blocking and machine feeding at comparable weight percent. The materials can also include conductive layers underneath the outermost backside layer.Type: GrantFiled: March 17, 2005Date of Patent: September 12, 2006Assignee: Eastman Kodak CompanyInventors: Darlene F. Philip, Thomas J. Ludemann, Roland J. Koestner, Gary E. LaBelle
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Patent number: 7087351Abstract: The present invention relates to a display comprising at least one substrate having at least one electrically modulated imaging layer thereon, at least one patterned electrically conductive layer, and at least one antistatic layer.Type: GrantFiled: September 29, 2004Date of Patent: August 8, 2006Assignee: Eastman Kodak CompanyInventors: Peter T. Aylward, Debasis Majumdar, Hwei-Ling Yau, William J. Durkin, Donald O. Bigelow, Daniel A. Slater, Kelly S. Robinson
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Patent number: 7018787Abstract: Thermally developable materials such as photothermographic and thermographic materials have a backside conductive layer with increased conductive efficiency. This backside conductive layer is a buried conductive coating and is overcoated with a layer that contains a smectite clay modified with a quaternary ammonium compound.Type: GrantFiled: November 30, 2004Date of Patent: March 28, 2006Assignee: Eastman Kodak CompanyInventors: Thomas J. Ludemann, Gary E. LaBelle, Darlene F. Philip, Thomas C. Geisler
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Patent number: 6911302Abstract: A coating composition for use in a photographic element, the composition comprising an aqueous solution of: two or more surfactants; a hydrophilic binder; and optional matte particles; wherein one of the surfactants is represented by the following Formula (I): Rf—CH2CH2—(B)y-A??(I) where Rf is F(CF2CF2)n— and n is 3 and 4 or 3, 4, and 5, and the fraction of all Rf with n=3 is at least 40%; B is a divalent linking group; y is 0 or 1; and A is an anionic group with a counterion or an amphoteric group. A photographic element containing the coating composition is also disclosed.Type: GrantFiled: November 7, 2003Date of Patent: June 28, 2005Assignee: Eastman Kodak CompanyInventors: Alice G. Moon, Mark P. Pavlik, Michael W. Orem
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Patent number: 6897013Abstract: A silver halide photographic light-sensitive material having one or more layers including at least one light-sensitive silver halide emulsion layer on a support, wherein any of the layers formed on the support contains a compound represented by the following formula (1) and a fluorine-containing surfactant (in the formula (1), R1 represents an alkyl group or alkenyl group having 6-25 carbon atoms, ml represents an integer of 0-30, n1 represents an integer of 0-4, a represents 0 or 1, and Z1 represents OSO3M or SO3M, where M represents a cation). There is provided a silver halide photographic light-sensitive material that shows superior antistatic property and can be stably produced.Type: GrantFiled: March 13, 2003Date of Patent: May 24, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Terukazu Yanagi, Yoshihisa Tsukada, Kouichi Yokota, Shinichi Ichikawa, Katsuhiko Kanazawa
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Patent number: 6875563Abstract: 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) and is the only fluorosurfactant in the composition: Rf—CH2CH2—S-(A)-D??(I) where Rf is —(CF2)nCF3, n represents the number of CF2 groups and is 3 or 5 in at least 60% of the Rf groups present, and in the remainder of Rf groups n is 7, 9, or 11. A is a divalent linking group that includes substituted alkylene or alkylene (N-alkylene)amide; and D is an ionic group. A photographic element with an outermost layer containing the coating composition is also disclosed.Type: GrantFiled: November 6, 2003Date of Patent: April 5, 2005Assignee: Eastman Kodak CompanyInventors: Michael W. Orem, Ronald R. Andrews
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Patent number: 6872515Abstract: A silver halide photographic light-sensitive material having one or more layers including at least one light-sensitive silver halide emulsion layer on a support, wherein at least one of the layers contains at least one compound represented by R1-Z1 (R1 is an unsubstituted or hydroxy-substituted alkyl having 6-24 carbon atoms or an unsubstituted alkenyl group having 6-24 carbon atoms, and Z1 is OSO3M or SO3M, where M is a cation) and a fluorine-containing surfactant. There is provided a silver halide photographic light-sensitive material that shows superior antistatic property and can be stably produced.Type: GrantFiled: May 2, 2003Date of Patent: March 29, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshihisa Tsukada, Terukazu Yanagi, Kouichi Yokota
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Patent number: 6872501Abstract: The invention relates to a material comprising a sheet wherein said sheet comprises at least one layer comprising polyether polymeric antistat and thermally processable onium salt.Type: GrantFiled: April 26, 2002Date of Patent: March 29, 2005Assignee: Eastman Kodak CompanyInventors: Debasis Majumdar, Thomas M. Laney, Jehuda Greener, Peter T. Aylward, Dinesh Tyagi
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Patent number: 6835516Abstract: 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: GrantFiled: May 19, 2003Date of Patent: December 28, 2004Assignee: Eastman Kodak CompanyInventors: Richard A. Castle, Janglin Chen, Debasis Majumdar
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Publication number: 20040170934Abstract: The invention relates to a material comprising a web wherein said web comprises at least one surface layer comprising polyether polymeric antistat, extrudable polymer, and compatibilizer wherein said surface layer has a roughness of greater than 0.3 Ra.Type: ApplicationFiled: March 11, 2004Publication date: September 2, 2004Inventors: Debasis Majumdar, Thomas M. Laney, Jehuda Greener, Jose L. Garcia, Peter T. Aylward
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Publication number: 20040170933Abstract: A coating composition for use in a photographic element, the composition comprising an aqueous solution of: two or more surfactants; a hydrophilic binder; and optional matte particles; wherein one of the surfactants is represented by the following Formula (I):Type: ApplicationFiled: November 7, 2003Publication date: September 2, 2004Inventors: Alice G. Moon, Mark P. Pavlik, Michael W. Orem
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Publication number: 20040137385Abstract: 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) and is the only fluorosurfactant in the composition:Type: ApplicationFiled: November 6, 2003Publication date: July 15, 2004Inventors: Michael W. Orem, Ronald R. Andrews
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Patent number: 6762013Abstract: Nonpolymeric fluorochemicals defined as by the following Structure I are useful in thermally developable materials. The fluorochemicals are defined as follows: Rf—R—N(R1)(R2)(R3)+X− (I) wherein Rf is a straight or branched chain perfluoroalkyl group having 4 to 18 carbon atoms, R is a divalent linking group comprising at least 4 carbon atoms and a sulfide group in the chain, R1, R2, R3 are independently hydrogen or alkyl groups or any two of R1, R2, and R3 taken together can represent the carbon and nitrogen atoms necessary to provide a 5- to 7-membered heterocyclic ring with the cationic nitrogen atom, and X− is a monovalent anion.Type: GrantFiled: October 4, 2002Date of Patent: July 13, 2004Assignee: Eastman Kodak CompanyInventors: Kumars Sakizadeh, Gary E. LaBelle, Aparna V. Bhave
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Publication number: 20040126719Abstract: A substantially light-insensitive black and white monosheet thermographic recording material has a support and on one side of the support comprises a thermosensitive element, a barrier layer and an outermost protective layer, the thermosensitive element being exclusive of a high contrast agent and containing at least one substantially light-insensitive silver salt of a carboxylic acid, at least one reducing agent therefor in thermal working relationship therewith, at least one toning agent and at least one binder, wherein the at least one reducing agent is an ortho-dihydroxy-benzene derivative and the barrier layer comprises a copolymer comprising vinyl chloride units and vinyl acetate and/or vinyl alcohol units, a copolymer comprising styrene units and acrylonitrile units, a copolymer comprising cationic units and/or a copolymer comprising styrene units and maleic acid units.Type: ApplicationFiled: December 16, 2003Publication date: July 1, 2004Applicant: AGFA-GEVAERTInventors: Ingrid Geuens, Frank Louwet, Peter Michiels
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Publication number: 20040126718Abstract: Antistatic compositions include a fluorochemical that is a reaction product of RfCH2CH2—SO3H with an amine wherein Rf comprises 4 or more fully fluorinated carbon atoms. These antistatic compositions can be formulated in organic solvent-based conductive coating compositions, with or without hydrophobic binders, that can be used to form conductive layers in thermally developable materials including thermographic and photothermographic materials.Type: ApplicationFiled: December 15, 2003Publication date: July 1, 2004Inventors: Kumars Sakizadeh, Gary E. LaBelle, Michael W. Orem, Aparna V. Bhave
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Patent number: 6709808Abstract: 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: GrantFiled: May 6, 2002Date of Patent: March 23, 2004Assignee: Eastman Kodak CompanyInventors: Mark Lelental, Gary M. Mosehauer, Roger J. Owers, James L. Wakley
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Publication number: 20040033454Abstract: The present invention provides a photothermographic material, comprising a photosensitive silver halide, a non-photosensitive organic solvent salt, a reducing agent for a silver ion, and a binder on one face of a support, for being applied by using an organic solvent, the photothermographic material further comprising at least one compound selected from the group of compounds consisting of: a compound represented by the following general formula (1), a compound having a &bgr;-lactam ring, a compound having a group that is adsorptive to a silver halide and a group that reduces a silver halide and a precursor thereof: 1Type: ApplicationFiled: August 4, 2003Publication date: February 19, 2004Inventors: Tomoyuki Ohzeki, Hiroyuki Mifune, Tadashi Inaba, Kohzaburoh Yamada, Katsuyuki Watanabe
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Publication number: 20040033447Abstract: Aqueous-based photothermographic materials comprise a hydrophilic binder, preformed silver halides, an organic silver salt, a reducing agent composition, and one or more benzothiazolium, benzoselenazolium, or benzotellurazolium salts as antifoggants. These photothermographic materials can be used in combination with phosphor intensifying screens for radiographic imaging.Type: ApplicationFiled: August 14, 2003Publication date: February 19, 2004Applicant: Eastman Kodak CompanyInventors: Chaofeng Zou, Roger L. Klaus
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Patent number: 6686139Abstract: A silver halide photographic material of the invention contains a support having on at least one surface thereof at least one photosensitive silver halide emulsion layer, and a surface protective layer. The silver halide photographic material of the invention may include a hydrophilic colloid layer containing a hydrophilic colloid, in addition to the surface protective layer. The silver halide photographic material of the invention contains at least two kinds of surfactants that are different from each other. One of the surfactants (type 1) has a fluoroalklyl group or a fluoroalkylene group. The other (type 2) is an anionic surfactant containing ethyleneoxy repeating units and having an alkyloxy group or an alkylcarbonyl group at an end thereof.Type: GrantFiled: May 22, 2003Date of Patent: February 3, 2004Assignee: Fuji Photo Film Co. Ltd.Inventors: Katsuhiko Kanazawa, Terukazu Yanagi, Yoshihisa Tsukada, Shinichi Ichikawa
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Patent number: 6670092Abstract: 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: GrantFiled: March 1, 2002Date of Patent: December 30, 2003Assignee: Agfa-GevaertInventors: Steffen Denzinger, Michael Dörr
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Patent number: 6610469Abstract: 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: GrantFiled: January 16, 2002Date of Patent: August 26, 2003Assignee: Fuji Photo Film, Co., Ltd.Inventor: Makoto Ishihara
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Publication number: 20030148232Abstract: 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: ApplicationFiled: May 28, 2002Publication date: August 7, 2003Inventors: Michael W. Orem, Ronald R. Andrews
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Publication number: 20030134211Abstract: 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: ApplicationFiled: December 26, 2001Publication date: July 17, 2003Applicant: Eastman Kodak CompanyInventors: Mark Lelental, Charles C. Anderson, John M. Pochan, James L. Wakley, James F. Elman
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Publication number: 20030113667Abstract: 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: ApplicationFiled: August 8, 2002Publication date: June 19, 2003Inventor: Toshiyuki Matsumura
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Patent number: 6475710Abstract: 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 asType: GrantFiled: January 17, 2001Date of Patent: November 5, 2002Assignee: Konica CorporationInventors: Shinji Kudo, Keiko Chigusa, Hiroshi Kashiwagi
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Patent number: 6436619Abstract: The invention relates to a material comprising a web wherein said web comprises at least one surface layer comprising polyether polymeric antistat, extrudable polymer, and compatibilizer wherein said surface layer has a roughness of greater than 0.3 Ra.Type: GrantFiled: May 11, 2001Date of Patent: August 20, 2002Assignee: Eastman Kodak CompanyInventors: Debasis Majumdar, Thomas M. Laney, Jehuda Greener, Jose L. Garcia, Peter T. Aylward
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Patent number: 6329128Abstract: An infrared photosensitive element comprising: a support bearing an infrared radiation-sensitive silver halide material; and an antihalation layer comprising a basic antistatic agent, an acid having a pKa less than 4.2 in an amount equal to at least 1.0% mole equivalent of acid to 1 mole equivalent of amine in said antistatic agent, and sufficient antihalation dye to provide a transmission optical density at the wavelength of maximum absorbence of said dye of at least 0.2 after coating.Type: GrantFiled: May 1, 1995Date of Patent: December 11, 2001Assignee: Eastman Kodak CompanyInventors: Randall H. Helland, Charles W. Gomez, William D. Ramsden
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Publication number: 20010044492Abstract: 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: ApplicationFiled: June 13, 2001Publication date: November 22, 2001Inventors: Dwight W. Schwark, Debasis Majumdar, Charles C. Anderson, Robert J. Kress
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Patent number: 6316175Abstract: 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: GrantFiled: February 22, 2000Date of Patent: November 13, 2001Assignee: Agfa-GevaertInventors: Marc Van den Zegel, Etienne Van Thillo, Bavo Muys
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Patent number: 6300052Abstract: 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: GrantFiled: August 21, 1998Date of Patent: October 9, 2001Assignee: Agfa-GevaertInventors: Frank Louwet, Huub Van Aert, Frank Ruttens, Ivan Hoogmartens
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Patent number: 6140030Abstract: 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: GrantFiled: May 6, 1999Date of Patent: October 31, 2000Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Mario D. DeLaura
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Patent number: 6083674Abstract: The invention relates to a lenticular support comprising a polymer sheet having a lower lenticular surface, wherein said lower lenticular surface has a uniform coating of an antistat comprising clay or metal containing particles.Type: GrantFiled: June 21, 1999Date of Patent: July 4, 2000Assignee: Eastman Kodak CompanyInventors: William J. Hennessey, Sharon M. Melpolder, Debasis Majumdar
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Patent number: 6048679Abstract: The present invention is an imaging element which includes a support, at least one imaging layer superposed on the support and an antistatic layer superposed on the support. The antistatic layer is composed of a wax particle having a wax phase and a polymer phase, the polymer phase formed from an ethylenically unsaturated monomer free of ionic charge groups capable of forming a water soluble homopolymer and a second ethylenically unsaturated monomer capable of forming a water insoluble homopolymer, and an antistatic agent having an ionic group.Type: GrantFiled: December 28, 1998Date of Patent: April 11, 2000Assignee: Eastman Kodak CompanyInventors: Yongcai Wang, Dwight W. Schwark, Robert J. Kress, Alfred B. Fant
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Patent number: 6001549Abstract: The present invention is an imaging element which includes a support, an image forming layer superposed on the support; and an antistatic layer superposed on the support. The antistatic layer includes electrically conductive particles at a 10-60 volume percent and microgel particles. The microgel particles are composed of 25 to about 80 weight percent of an oleophilic monomer, 5 to about 45 weight percent of a hydrophilic monomer, and 0 to 20 weight percent of a crosslinking monomer having at least two addition polymerizable groups. In an alternative embodiment the antistatic layer also includes a binder.Type: GrantFiled: May 27, 1998Date of Patent: December 14, 1999Assignee: Eastman Kodak CompanyInventors: Mridula Nair, Lloyd A. Lobo, Tamara K. Osburn
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Patent number: 5955250Abstract: The present invention is a multilayer imaging element which includes a support, one or more image-forming layers superposed on the support, and an outermost transparent electrically-conductive, non-charging, overcoat layer superposed on the support. The over coat layer is colloidal, acicular electrically-conductive metal-containing particles, dispersed in a film-forming binder at a volume percentage of acicular conductive metal-containing particles of from 2 to 60. The overcoat layer further includes a first charge control agent which imparts positive charging properties and a second charge control agent which imparts negative charging properties.Type: GrantFiled: December 16, 1997Date of Patent: September 21, 1999Assignee: Eastman Kodak CompanyInventors: Paul A. Christian, Mark Lelental, Dennis J. Eichorst
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Patent number: 5925447Abstract: A thermoplastic film coated with a permanent antistatic composition to form an antistatic coating thereon, and a method for priming a thermoplastic film with the antistatic composition. The antistatic composition comprises: from 2 to 11% by weight of an antistatic copolymer; from 0 to 0.45% by weight of an antistatic compound; from 0.25 to 2% by weight glycidoxy silane; from about 0.3 to 2% by weight spherical silica particles having an average diameter of 10-100 nanometers; and water, or a mixture or water and organic solvent, wherein the total weight percent of all components equals 100%.Type: GrantFiled: July 18, 1996Date of Patent: July 20, 1999Assignee: Mitsubishi Polyester Film, LLCInventors: Stephen J. Gust, Ronald S. Caines
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Patent number: 5888712Abstract: The present invention is a multilayer imaging element which includes a support, one or more image-forming layers super posed on the support; and an outermost transparent electrically-conductive, non-charging, overcoat layer superposed on the support. The outermost transparent electrically-conductive, non-charging overcoat layer includes colloidal, electrically-conductive metal-containing granular particles, dispersed in a film-forming binder at a volume percentage of conductive metal-containing particles of from 20 to 80 and a first charge control agent which imparts positive charging properties and a second charge control agent which imparts negative charging properties.Type: GrantFiled: December 16, 1997Date of Patent: March 30, 1999Assignee: Eastman Kodak CompanyInventors: Mark Lelental, Michael W. Orem, Paul A. Christian, Roger J. Owers
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Patent number: 5846699Abstract: The present invention describes an imaging element having a support, and at least one layer formed from an aqueous coating composition containing a film forming binder. The film forming binder is a mixture of a polyurethane and a carboxylic acid containing polymer or copolymer having a glass transition temperature of at least 40.degree. C. and an acid number of 60 to 260. The carboxylic acid containing polymer or copolymer is reacted with ammonia or amine so that the coating composition has a pH of from 7 to 10.Type: GrantFiled: September 11, 1996Date of Patent: December 8, 1998Assignee: Eastman Kodak CompanyInventors: Yongcai Wang, Charles Chester Anderson
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Patent number: 5776659Abstract: A composition for irradiation with an ionizing radiation, characterized by comprising: (a) 0.01 to 30 parts by weight of a soluble aniline polymer which comprises one or both of the repeating units represented by the following general formulae (1) and (2), said repeating units being included at least 80% of the total repeating units, possesses a weight average molecular weight of not less than 10,000, and is solid at room temperature; and (b) 100 parts by weight of a solvent, ##STR1## wherein R.sup.1 to R.sup.4 represent an electron-donating group, Y.sup.1 to Y.sup.4 represent --SO.sub.3 -- or --COO--, and M.sup.1 to M.sup.4 represent a hydrogen ion, an ammonium ion, an a1kyl ammonium ion with 1 to 8 carbon atoms, an aromatic ammonium ion, or a quaternary ion of an aromatic heterocyclic ring.Type: GrantFiled: December 12, 1996Date of Patent: July 7, 1998Assignees: Fujitsu Limited, Nitto Chemical Industry Co., Ltd.Inventors: Keiji Watanabe, Ei Yano, Takahisa Namiki, Keiko Yano, Takashi Maruyama, Tomio Nakamura, Shigeru Shimizu, Takashi Saitoh, Masashi Uzawa, Masami Ishikawa
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Patent number: 5747232Abstract: In accordance with this invention, a photographic film especially suited for motion imaging film applications such as motion picture film or television film has on one side of a support material, in order, a process surviving, electrically conductive subbing layer, a photographic emulsion, and a protective overcoat; and on the opposite side a carbon black-containing backing layer, and optionally, a lubricant that overlies the backing layer. The carbon black-containing layer provides antihalation and antistatic protection for the unprocessed film. The conductive subbing layer retains its antistatic properties after processing so that the motion imaging film is protected from the generation of static charge after the carbon black-containing layer is removed during processing. The conductive subbing layer has a resistivity of less than 5.times.10.sup.9 .OMEGA./.quadrature. after film processing.Type: GrantFiled: February 27, 1997Date of Patent: May 5, 1998Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Mario D. DeLaura
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Patent number: 5723274Abstract: The present invention is an imaging element which includes a support and at least one layer formed from, (A) film forming binder, and (B) non-film forming polymeric particles. The film forming binder is formed from a coating solution of carboxylic acid containing vinyl polymer or copolymer having a glass transition temperature of greater than 50.degree. C. and an acid number of 60 to 260, the carboxylic acid containing vinyl polymer or copolymer is reacted with ammonia or amine so that the coating solution has a pH of from 7 to 10.Type: GrantFiled: September 11, 1996Date of Patent: March 3, 1998Assignee: Eastman Kodak CompanyInventors: Charles Chester Anderson, Yongcai Wang
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Patent number: 5723276Abstract: The present invention is a polyolefin resin coated paper base having a backing layer. The backing layer is formed by coating and subsequent drying of a coating composition having dispersed therein colloidal inorganic oxide particles, an antistatic agent and a film forming binder. The film forming binder is a carboxylic acid containing vinyl polymer or copolymer having a glass transition temperature greater than 25.degree. C. and an acid number of from 30 to 260 wherein the carboxylic acid containing vinyl polymer or copolymer is reacted with ammonia or amine so that the coating composition has a pH of from 7 to 10.Type: GrantFiled: September 11, 1996Date of Patent: March 3, 1998Assignee: Eastman Kodak CompanyInventors: Lori Jeanne Shaw-Klein, Charles Chester Anderson, Yongcai Wang
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Patent number: 5723275Abstract: The present invention describes an imaging element having a support, an image forming layer and at least one layer formed from an aqueous coating composition containing a film forming binder. The film forming binder is an interpolymer containing carboxylic acid groups. The interpolymer contains from 60 to 90 weight percent vinylidene chloride. The interpolymer has an acid number of from 30 to 150 and the carboxylic acid groups are reacted with ammonia or amine so that the aqueous coating composition has a pH of from 7 to 10.Type: GrantFiled: September 11, 1996Date of Patent: March 3, 1998Assignee: Eastman Kodak CompanyInventors: Yongcai Wang, Charles Chester Anderson