Gelatin Other Than Radiation Sensitive Type Patents (Class 430/539)
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Patent number: 6180330Abstract: An imaging element comprising a reflective base and at least one gelatin containing layer said at least one layer comprising a dispersion of solid particle pigments of a particle size less than 1.0 micrometer.Type: GrantFiled: August 10, 1999Date of Patent: January 30, 2001Assignee: Eastman Kodak CompanyInventors: Thaddeus S. Gula, Robert P. Bourdelais, John F. Sawyer, Mary Christine Brick
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Patent number: 6174660Abstract: A silver halide photographic light-sensitive material comprising a support having thereon at least a light-sensitive silver halide emulsion layer containing a light-sensitive silver halide emulsion and at least a nonlight-sensitive layer, wherein said silver halide photographic light-sensitive material contains a compound represented by the following formula (1) and said silver halide photographic light-sensitive material further contains a vinylsulfone group containing hardener. HOCH2(CHOH)mCH2OH Formula (1) wherein m represents an integer of 0 to 6.Type: GrantFiled: July 16, 1999Date of Patent: January 16, 2001Assignee: Konica CorporationInventors: Takesi Nakamura, Katsumasa Yamazaki
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Patent number: 6165681Abstract: This invention relates to a black-pigmented high molecular weight organic material which is structured from a radiation-sensitive precursor by irradiation, the pigmentation of which material consists of coloured organic pigments, at least one of which is in latent form before irradiation. This material is preferably used as a thin layer which is built up in the form of patterns on a transparent substrate and which can be used, for example, as black matrix for optical colour filters. This invention also relates to a process for the preparation of this material as well as to novel soluble derivatives of yellow disazo condensation pigments which can be used in this process.Type: GrantFiled: August 17, 1999Date of Patent: December 26, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Veronique Hall-Goulle, Gerardus de Keyzer
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Patent number: 6162595Abstract: Photographic elements capable of forming a reversal image are disclosed comprising a support and, coated on said support, at least one image recording emulsion layer comprised of a dispensing medium and radiation sensitive silver halide grains and at least one substantially non-image forming layer. In one embodiment, the substantially non-image forming layer comprises: a) a light sensitive silver halide imaging emulsion which is less than 10 percent of the mass of the total imaging emulsion in the element; b) a first non-image forming silver salt emulsion having an average grain size less than 0.15 .mu.m; and c) a second non-image forming silver salt emulsion comprising iodide having an average grain size greater than that of the first non-image forming emulsion.Type: GrantFiled: November 23, 1999Date of Patent: December 19, 2000Assignee: Eastman Kodak CompanyInventor: Keath T. Chen
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Patent number: 6153366Abstract: A silver halide photographic light-sensitive material IS DISCLOSED. The light-sensitive material comprises a support, a silver halide emulsion layer provided on one side of the support, and a non-light-sensitive hydrophilic colloid layer provided on the other side of the support, in which the non-light-sensitive hydrophilic colloid layer comprises a polymer latex and gelatin and the weight ratio of the polymer latex to gelatin is from 0.5 to 3.0.Type: GrantFiled: June 25, 1998Date of Patent: November 28, 2000Assignee: Konica CorporationInventor: Takeo Arai
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Patent number: 6071681Abstract: A method for producing a silver halide photographic light-sensitive material is disclosed, which comprises a support having thereon a silver halide emulsion layer and optionally another hydrophilic colloid layer. The method comprises the steps of (1) coating a coating solution of the silver halide emulsion layer or that of the hydrophilic colloid layer on the support, and (2) drying the coated layer, and the coating solution of the silver halide emulsion layer or that of the hydrophilic colloid layer comprises gelatin and a sugaralcohol.Type: GrantFiled: May 18, 1998Date of Patent: June 6, 2000Assignee: Konica CorporationInventors: Kiyokazu Morita, Hideki Hoshino, Shinichi Suzuki
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Patent number: 6037108Abstract: A support for an imaging element is described, which support comprises a polyester polymeric film having coated thereon a subbing layer comprising gelatin and a multi-hydric organic compound having at least three hydroxyl groups, which gelatin subbing layer coated support has been subjected to a heat treatment to reduce the core-set curling tendency of the polymeric film. Imaging elements for use in an image-forming process is also described, which elements comprise a gelatin subbing layer coated polyester polymeric film support as described above, and an image-forming layer coated on the subbed support. A method for forming a heat-tempered, gelatin-subbed support for an imaging element is also described, comprising coating a subbing layer comprising gelatin and a multi-hydric organic compound having at least three hydroxyl groups on a polyester polymeric film, and subjected the coated film to heat treatment to reduce the core-set curling tendency of the polymeric film.Type: GrantFiled: April 27, 1998Date of Patent: March 14, 2000Assignee: Eastman Kodak CompanyInventors: Janglin Chen, Richard A. Castle, Yongcai Wang
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Patent number: 6020117Abstract: A thermographic or photothermographic element is disclosed having a surface coating containing a film-forming binder overlying at least one major surface of the element. An alkoxysilane containing at least one saturated hydrocarbon substituent having at least 8 carbon atoms is confined to the surface coating to act as a friction reducing compound.Type: GrantFiled: September 30, 1998Date of Patent: February 1, 2000Assignee: Eastman Kodak CompanyInventors: Charles L. Bauer, Michael J. Ritz
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Patent number: 6015656Abstract: A tabular silica dispersion is disclosed, which is obtained by mixing a tabular silica, gelatin, a cyclodextrin and a compound capable of crosslinking gelatin. Silver halide photographic materials are also disclosed, in which the tabular silica dispersion is incorporated into a silver halide emulsion layer or a light-insensitive hydrophilic colloidal layer.Type: GrantFiled: July 16, 1999Date of Patent: January 18, 2000Assignee: Konica CorporationInventor: Ken Nagami
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Patent number: 5998120Abstract: A process for making a direct dispersion of a photographically useful material is discloses comprising: mixing (i) an aqueous phase comprising a gelatin solution and (ii) a liquid organic phase comprising a photographically useful material under conditions of high shear or turbulence to form a fine dispersion of the organic phase having an average particle size of less than 0.5 micron dispersed in the aqueous phase; wherein the gelatin solution comprises a mixture of a first gelatin having an isoelectric point pH of less than or equal to 5.2 and a second gelatin having an isoelectric point pH of greater than or equal to 6.0. In accordance with the invention, the use of blends of a first gelatin having an pI of less than or equal to 5.2, such as a conventional lime processed gelatin, and a second gelatin having an pI of greater than or equal to 6.Type: GrantFiled: December 30, 1997Date of Patent: December 7, 1999Assignee: Eastman Kodak CompanyInventors: Richard W. Connelly, James S. Honan, Andrew M. Howe
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Patent number: 5989797Abstract: A light-sensitive silver halide photographic material and a method for preparing said material is provided, wherein said material comprises a support and on one or both sides thereof at least one silver halide emulsion layer and a protective antistress layer as an outermost layer, characterized in that said silver halide emulsion layer(s) and/or said protective antistress layer comprise(s) at least one zeolite loaded with a photographically useful group. Said photographically useful group is a soluble salt, an organic compound releasing chloride, bromide or iodide, a sulfur salt, a selenium salt, a tellurium salt and/or a metal salt of group VIII.Type: GrantFiled: October 7, 1998Date of Patent: November 23, 1999Assignee: Agfa-Gevaert, N.V.Inventor: Hubert Vandenabeele
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Patent number: 5989802Abstract: Recording materials and a method of manufacturing said materials by coating hydrophilic colloidal layer compositions on a support by slide-hopper or curtain-coating techniques, followed by drying, said materials comprising a support and one or more light-sensitive and/or heat-sensitive layer(s) having a hydrophilic colloidal coating composition comprising no gelatin(in the case of (photo)thermographic materials) or gelatin in low amounts in order to provide a ratio by weight of gelatin to silver halide expressed as an equivalent amount of silver nitrate in the range from 0.05 to 0.4 (in the case of a light-sensitive silver halide photographic material) and thickening agents composed of synthetic clay and anionic macromolecular polyelectrolytes and wherein said synthetic clay is present in an amount of at least 85% by weight versus a total amount of thickening agents.Type: GrantFiled: June 2, 1997Date of Patent: November 23, 1999Assignee: Agfa-Gevaert, N.V.Inventor: Hubert Vandenabeele
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Patent number: 5989796Abstract: A thermally processable imaging element is disclosed having a protective coat overlying at least one thermographic or photothermographic imaging layer containing an organic silver salt and a thermally activated reducing agent for silver ion. The protective coat includes a film-forming binder comprised of a water dispersible polymer containing hydroxy pendant groups and, to reduce low density spots visible after thermal processing, a combination of anionic, non-ionic and fluorocarbon moiety containing surfactants satisfying formula defined selection criteria.Type: GrantFiled: September 30, 1998Date of Patent: November 23, 1999Assignee: Eastman Kodak CompanyInventor: Alice Moon
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Patent number: 5981155Abstract: A silver halide color photographic film element and more particularly a color motion picture projection film element is provided comprising a transparent thermoplastic film support having a subbing layer unit, coated thereon at least one color forming hydrophilic layer and protective layer, characterized in that at least said subbing layer unit comprises at least one light-stabilizer, preferably absorbing ultraviolet radiation, and at least one chemical compound having reducing properties.Type: GrantFiled: December 23, 1996Date of Patent: November 9, 1999Assignee: AGFA-Gervaert, N.V.Inventors: Geert Vercruysse, Jean Burtin
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Patent number: 5968646Abstract: The present invention comprises a polyester film support in which the surface has been subjected to an energetic treatment with nitrogen plasma to produce amine groups on the polyester surface. The treated surface is then coated with a dilute solution of amine reactive hardener and gelatin. After drying the hardener/gelatin coated support a photographic emulsion is coated on the surface. The resulting film element has excellent adhesion of the photographic emulsion after photoprocessing, and it is safer to coat and handle than previously known methods involving grafting of hardener directly to the support.Type: GrantFiled: January 19, 1996Date of Patent: October 19, 1999Assignee: Eastman Kodak CompanyInventors: Jeremy M. Grace, Louis J. Gerenser, Richard A. Castle, Janglin Chen, Edgar E. Riecke
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Patent number: 5952164Abstract: The present invention is a photographic element including a support, at least one silver halide emulsion layer superposed on said support; and at least one auxiliary layer. The auxiliary layer includes a gelatin-grafted-polyurethane which is formed by coating and subsequent drying of a coating composition comprising gelatin covalently bound to a polyurethane through a grafting agent, wherein a ratio of gelatin to polyurethane is from 1:10 to 2:1.Type: GrantFiled: June 4, 1998Date of Patent: September 14, 1999Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Brian A. Schell, Mario D. DeLaura
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Patent number: 5914224Abstract: A silver halide photographic light-sensitive material is disclosed. It comprising at least one light-sensitive silver halide emulsion layer and at least one non-light-sensitive layer on a support and the non-light-sensitive layer contains porous fine particles of 400 mg per 1 m.sup.2 or more and the material is hardened utilizing at least one of vinyl sulfone hardener, carboxyl-activating hardener or polymeric hardener.Type: GrantFiled: October 1, 1997Date of Patent: June 22, 1999Assignee: Konica CorporationInventors: Katsumasa Yamazaki, Takesi Nakamura
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Patent number: 5910401Abstract: The present invention is an imaging base which includes a polyester film support and an adhesion promoting layer directly adhered to a surface of the support. The adhesion promoting layer is formed by the coating and subsequent drying of a coating composition comprising a gelatin-grafted-polyurethane. The gelatin-grafted polyurethane is covalently bound to the polyurethane through a grafting agent wherein the ratio of gelatin to polyurethane is from 1:10 to 2:1. In one embodiment of the invention the imaging support is coated with at least one silver halide emulsion layer to form a photographic element.Type: GrantFiled: June 4, 1998Date of Patent: June 8, 1999Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Brian A. Schell, Mario D. DeLaura
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Patent number: 5910399Abstract: The present invention is a motion picture film which includes a support having, in order, on one side thereof an antihalation undercoat and at least one silver halide emulsion layer and having, in order, on the opposite side thereof an antistatic layer and a protective overcoat. The protective overcoat includes a polyurethane binder having a tensile elongation to break of at least 50% and a Young's modulus measured at a 2% elongation of at least 50000 lb/in.sup.2, and a topcoat farthest from the support. The topcoat is formed by the coating and subsequent drying of a coating composition comprising gelatin-grafted polyurethane comprising gelatin covalently bound to a polyurethane through a grafting agent, wherein the ratio of gelatin to polyurethane is from 1:10 to 2:1.Type: GrantFiled: June 4, 1998Date of Patent: June 8, 1999Assignee: Eastman Kodak CompanyInventors: Brian A. Schell, Charles C. Anderson
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Patent number: 5882846Abstract: Infrared sensitive photographic elements comprise an opaque film support, an infrared sensitized silver halide emulsion layer and a hydrophilic colloid protective layer on one side of the film support, said protective layer comprising colloidal silica having an average particle size lower than 15 nanometers.The elements have an increased exposure latitude upon exposure to infrared laser diodes, and higher maximum density upon photographic processing.Type: GrantFiled: January 8, 1993Date of Patent: March 16, 1999Assignee: Imation Corp.Inventors: Alberto Vacca, Marino Rossi
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Patent number: 5876908Abstract: The present invention is an imaging element including a support having a front side and a back side, at least one backing layer on the back side of the support, at least one silver halide emulsion layer superposed on the front side of the support, an interlayer superposed on the silver halide emulsion layer having a thickness of between 0.2 .mu.m and 1.2 .mu.m and a stiffness ratio of the interlayer to the silver halide emulsion layer of from 2 to 15; and a protective overcoat layer superposed on the interlayer having a thickness of from 0.3 to 2 .mu.m. The ratio of the thickness of the interlayer to the protective overcoat layer is less than or equal to 1.Type: GrantFiled: March 31, 1998Date of Patent: March 2, 1999Assignee: Eastman Kodak CompanyInventors: Justin Z. Gao, Andy H. Tsou, Charles C. Anderson
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Patent number: 5876911Abstract: This invention provides a means for improving rapid drying ability upon development and preservability of developing solution which comprises interposing a layer of water-soluble polymer having an average molecular weight of 300,000 or more between a non-photosensitive hydrophilic colloid layer and a hydrophobic polymer layer coated on the opposite side of a support to a silver halide photographic emulsion layer, or storing dried the above silver halide photographic photosensitive material with the interposed layer at the glass transition temperature of the hydrophobic polymer or higher.Type: GrantFiled: May 27, 1997Date of Patent: March 2, 1999Assignee: Fuji Photo Film Co., Ltd.Inventors: Kenji Nakajima, Shouji Nishida
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Patent number: 5869217Abstract: A silver halide photographic material which has a layer containing a swellable inorganic stratifying compound.Type: GrantFiled: July 24, 1997Date of Patent: February 9, 1999Assignee: Fuji Photo Film Co., Ltd.Inventor: Toshiaki Aono
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Patent number: 5853970Abstract: The present invention improves the conservation of a photographic product with a cellulose ester type support. The present invention involves coating on the support or the photographic product with a transparent film-forming aqueous composition. The composition is a fibrous alumino-silicate polymer of formula Al.sub.x Si.sub.y O.sub.z in which x:y is between 1 and 3, and z is between 2 and 6. The support can be treated before the application of the photographic layers (as a substratum or under-layer) or after the application of the photographic layers (as a top layer). It is also possible to treat an exposed, developed film by applying a top layer of the said composition.Type: GrantFiled: April 16, 1997Date of Patent: December 29, 1998Assignee: Eastman Kodak CompanyInventors: Olivier J. Poncelet, Jeannine Rigola, Boualem Mekki
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Patent number: 5851722Abstract: The present invention provides an imaging element comprising in the order given on a hydrophilic base (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer and (iii) an antistress layer being in water permeable relationship with said image receiving layer and comprising gelatin, characterized in that said antistress layer comprises at least 30 mg/m.sup.2 of a matting agent with a weight average diameter of at least 3 .mu.m.Type: GrantFiled: July 3, 1997Date of Patent: December 22, 1998Assignee: Agfa-Gevaert, N.V.Inventors: Paul Coppens, Guido Hauquier, Eric Verschueren, Eric Hoes
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Patent number: 5846700Abstract: The present invention is a photographic element including a support, at least one silver halide image-forming layer; and a hydrophilic protective layer. The hydrophilic protective layer includes a hydrophilic colloid, and a fluoroolefin-vinyl ether copolymer having a glass transition temperature greater than 25.degree. C. and a hydroxyl number greater than 5.Type: GrantFiled: June 12, 1997Date of Patent: December 8, 1998Assignee: Eastman Kodak CompanyInventors: Yongcai Wang, Charles C. Anderson, James L. Bello
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Patent number: 5837437Abstract: An aqueous developable chromogenic photographic element coated on a single dimensionally stable support wherein said element comprises in reactive association (1) an aqueous diffusible photographically useful organic compound or precursor to an aqueous diffusible photographically useful organic compound, (2) radiation sensitive silver halide, (3) a compound that forms or releases a dye, (4) hydrophilic binder, and (5) one or more contiguous overcoat layers devoid of silver halide wherein said one or more overcoat layers comprise hydrophilic binder at a level of at least 3 g/m.sup.2 is disclosed.Type: GrantFiled: March 12, 1996Date of Patent: November 17, 1998Assignee: Eastman Kodak CompanyInventors: Ravi Sharma, John Texter
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Patent number: 5834174Abstract: A photographic element comprising a support, at least one hydrophilic light-sensitive layer, and a light-insensitive layer containing a binder and solid, nonporous polymer matte particle having the formula:(A).sub.x (B).sub.ywhere A is a monofunctional ethylenically unsaturated monomer, B is a polyfunctional ethylenically unsaturated monomer, x is from 0 to 55 mole %, and y is about 45 to 100 mole %.Type: GrantFiled: July 15, 1997Date of Patent: November 10, 1998Assignee: Eastman Kodak CompanyInventors: Dennis Edward Smith, Yongcai Wang, Patrick M. Jeffries
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Patent number: 5821027Abstract: The present invention is a method of producing an imaging support which includes providing a support, simultaneously coating on a side of the support; a transparent magnetic recording layer including magnetic particles, a polymeric binder and an organic solvent, and a lubricating overcoat layer farthest from the support, the lubricating overcoat layer including a lubricant selected form the general formulas I, II or III:wherein general formula I comprises: ##STR1## wherein X is selected from the group consisting of esters, amides, ethers, or methylene, a is from 10 to 500, and b is from 4 to 3000, and the general formula I has a molecular weight at least 800;wherein general formula II comprises: ##STR2## wherein Y is selected from the group consisting of, --C-- and --N--, Z is selected from the group consisting of esters, amides, and a carbon-carbon bond, R is selected from the group consisting of methyl, and hydrogen or may be absent if Y equals nitrogen, c is from 1 to 2, d is from 4 to 3000, e is from 10 tType: GrantFiled: May 19, 1997Date of Patent: October 13, 1998Assignee: Eastman Kodak CompanyInventors: Christine J. Landry-Coltrain, Bradley K. Coltrain, Michael J. Corrigan, David B. Bailey
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Patent number: 5807662Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises comprising a support, having thereon, a silver halide emulsion layer and optionally a hydrophilic colloid layer, in which the silver halide emulsion layer comprises silver halide grains sensitized by a selenium compound or a tellurium compound, and a polysulfide compound, and at least one of the silver halide emulsion layer and the hydrophilic colloid layer contains a tabular particle of a silicate compound.Type: GrantFiled: May 15, 1997Date of Patent: September 15, 1998Assignee: Konica CorporationInventor: Shigeaki Takahashi
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Patent number: 5804360Abstract: The present invention is an imaging element including a support, an image-forming layer and at one least layer having been formed by the coating and subsequent drying of a coating composition. The coating composition is an aqueous medium having therein a polyurethane/vinyl polymer dispersion formed by free radical polymerization of a vinyl monomer in the presence of an aqueous polyurethane dispersion.Type: GrantFiled: May 12, 1997Date of Patent: September 8, 1998Assignee: Eastman Kodak CompanyInventors: Brian A. Schell, Charles C. Anderson, Kenneth L. Tingler, Yongcai Wang
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Patent number: 5795697Abstract: The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer (iii) a first antistress layer and (iv) a second antistress layer, said antistress layers being in water permeable relationship with said image receiving layer and each independently comprising unhardened gelatin, characterized in that said second antistress layer comprises at least 30 mg/m.sup.2 of a matting agent with a weight average diameter of more than 3 .mu.m.Type: GrantFiled: July 3, 1997Date of Patent: August 18, 1998Assignee: AGFA-Gevart, N.V.Inventors: Paul Coppens, Eric Hoes
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Patent number: 5792600Abstract: Disclosed is a silver halide photographic light sensitive material comprising a support and provided thereon, a light sensitive silver halide emulsion layer and a non-light sensitive hydrophilic binder layer, wherein at least one of the light sensitive silver halide emulsion layer and the non-light sensitive hydrophilic binder layer contains tabular silica particles covered with a hardened gelatin layer.Type: GrantFiled: November 18, 1997Date of Patent: August 11, 1998Assignee: Konica CorporationInventor: Ken Nagami
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Patent number: 5786134Abstract: This invention relates to a motion picture print film having a support and having, in order, on one side thereof an antihalation undercoat and at least one silver halide emulsion layer and having, in order, on the opposite side thereof an antistatic layer, a protective overcoat; characterized in that said protective overcoat includes a polyurethane binder and the polyurethane binder has a tensile elongation to break of at least 50% and a Young's modulus measured at a 2% elongation of at least 50000 lb/in, and a topcoat farthest from the support which includes a hydrophilic binder at a weight percent of at least 20.Type: GrantFiled: May 15, 1997Date of Patent: July 28, 1998Assignee: Eastman Kodak CompanyInventors: Mridula Nair, Kenneth L. Tingler, Gustav R. Apai, II, Frank A. Pettrone
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Patent number: 5753426Abstract: A photographic sheet element comprising a film support, at least one light-sensitive layer having a hydrophilic binder on a first side of the support, the thickness of the at least one light-sensitive layer and other layers on the first side of the support being T.sub.E, on the opposite side of the support, a transparent magnetic recording layer comprising ferromagnetic particles in a hydrophilic colloid, the thickness of the transparent magnetic recording layer being T.sub.M, intermediate, the transparent magnetic recording layer and the support, a hydrophilic colloid control layer, the thickness of the control layer being T.sub.C, the relative thickness of the layers being represented by the formula: ##EQU1## where 0<X<10.Type: GrantFiled: February 21, 1996Date of Patent: May 19, 1998Assignee: Eastman Kodak CompanyInventors: Mridula Nair, Robert Edward Dickerson, George Leslie Oltean, Lloyd Anthony Lobo
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Patent number: 5741633Abstract: The invention describes silver halide packet emulsion grains or crystals that are conventionally precipitated using gelatin of a given isoelectric pH, surrounded by a layer of gelatin-grafted-polymer particles wherein the grafted gelatin has a different isoelectric pH and the said gelatin-grafted-polymer particles are optionally chemically bonded to the gelatin surrounding the silver halide microcrystals. Such packet emulsions can form the basis for a mixed-packet color photographic system.Type: GrantFiled: June 7, 1995Date of Patent: April 21, 1998Assignee: Eastman Kodak CompanyInventors: Mark Anthony Whitson, John Derek Lewis, Tienteh Chen, Thomas Joseph Dannhauser, Pranab Bagchi
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Patent number: 5714309Abstract: The invention concerns a film-forming aqueous composition comprising a binder and an inorganic anti-static substance. The binder is in the form of a water-soluble polymer such as gelatin or hydroxyethyl cellulose free from any aluminum-chelating groups, and the anti-static substance is a fibrous inorganic polymer of the formula Al.sub.x Si.sub.y O.sub.z, where x:y is between 1 and 3 and z is between 2 and 6. Such compositions are particularly applicable to obtaining anti-static layers for photographic materials.Type: GrantFiled: October 23, 1996Date of Patent: February 3, 1998Assignee: Eastman Kodak CompanyInventors: Olivier Jean Christain Poncelet, Jeannine Rigola
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Patent number: 5712076Abstract: The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing one or more silver halide emulsions being in water permeable relationship with said image receiving layer, characterized in that said one or more silver halide emulsions comprise substantially no silver bromide and that said imaging element comprises on top of said photosensitive layer an antistress layer, being in water permeable relationship with said photosensitive layer and comprising an unhardened gelatin in an amount ranging from 0.60 to 1.75 g/m.sup.2.Type: GrantFiled: October 29, 1996Date of Patent: January 27, 1998Assignee: AGFA-Gevaert, N.V.Inventors: Paul Coppens, Bartholomeus Van Der Linden, Rene De Keyzer
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Patent number: 5705328Abstract: A silver halide photographic light sensitive material comprises a support and provided thereon, a silver halide emulsion layer, the support comprising a syndiotactic polystyrene, wherein the support has a temperature expansion coefficient of not more than 50.times.10.sup.-6 /.degree.C. and a humidity expansion coefficient of not more than 15.times.10.sup.-6 /% RH.Type: GrantFiled: August 22, 1996Date of Patent: January 6, 1998Assignee: Konica CorporationInventor: Shigeru Shiozaki
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Patent number: 5700630Abstract: A silver halide photographic material is disclosed which comprises a support having thereon at least one light-sensitive silver halide emulsion layer containing silver halide grains, a surface protective layer as an uppermost layer, and a hydrophilic colloid layer other than said at least one light-sensitive silver halide emulsion layer and said surface protective layer, wherein the sum of the silver amount contained in each of said at least one light-sensitive silver halide emulsion layer is from 0.8 g/m.sup.2 to 1.5 g/m.sup.Type: GrantFiled: March 1, 1996Date of Patent: December 23, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Rikio Inoue, Sumito Yamada
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Patent number: 5698384Abstract: Imaging elements, such as photographic, electrostatographic and thermal imaging elements, are comprised of a support, an image-forming layer and an electrically-conductive layer comprising electronically-conductive fine particles, such as antimony-doped tin oxide particles, and gelatin-coated water-insoluble polymer particles. The use of gelatin-coated water-insoluble polymer particles as a binder in the electrically-conductive layer facilitates the preparation of stable coating compositions and provides a layer with a high degree of conductivity at low concentrations of electronically-conductive fine particles and with excellent abrasion resistant properties.Type: GrantFiled: December 5, 1995Date of Patent: December 16, 1997Assignee: Eastman Kodak CompanyInventors: Charles Chester Anderson, Yongcai Wang, James Lee Bello, Mario Dennis DeLaura
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Patent number: 5693461Abstract: This invention describes the composition and method of preparation of heteroflocculated packet emulsion clusters containing a light sensitive and selectively photosensitized silver halide emulsion particles and particles of photographic agents such as dye-forming coupler particles. The silver halide emulsion particles are associated with a layer of adsorbed peptizing gelatin with an isoelectric pH of P.sub.1 and the grafted gelatin of the gelatin-grafted-polymer particles comprising the photographic agent has an isoelectric pH of P.sub.2 such that P.sub.1 is different than P.sub.2. At least one of the peptizing and grafted gelatins is an isoing gelatin which is sufficiently derivatized to remove ionic groups thereof such that approaching the isoelectric pH in an aqueous solution of the isoing gelatin causes massive heteroflocculation.Type: GrantFiled: March 21, 1995Date of Patent: December 2, 1997Assignee: Eastman Kodak CompanyInventors: Pranab Bagchi, Tienteh Chen, Thomas Joseph Dannhauser, John Derek Lewis, Mark Anthony Whitson
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Patent number: 5650265Abstract: Palladium compounds are incorporated into a relatively low speed photographic print element. One embodiment of the invention comprises a silver halide light sensitive photographic print element comprising a support bearing at least one silver halide emulsion image forming layer, an antistatic layer containing vanadium pentoxide, and a palladium compound. In a preferred embodiment, the silver halide light sensitive photographic print element of the invention comprises a support bearing on one side thereof at least one blue-sensitive silver halide emulsion yellow-image forming layer, at least one red-sensitive silver halide emulsion cyan-image forming layer, and at least one green-sensitive silver halide emulsion magenta-image forming layer; an antistatic layer containing vanadium pentoxide; and a palladium compound.Type: GrantFiled: December 22, 1995Date of Patent: July 22, 1997Assignee: Eastman Kodak CompanyInventors: Henry Joseph Sniadoch, Gary Norman Barber
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Patent number: 5620830Abstract: The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer and (iii) an antistress composition in water permeable relationship with said image receiving layer, said antistress composition comprising unhardened gelatin in an amount ranging from 0.60 to 1.75 g/m.sup.2, characterized in that at least 50% by weight of said unhardened gelatin belongs to one or more gelatin species whereof a 10% by weight aqueous solution at 36.degree. C. and pH 6 has a viscosity lower than 35 mPa.s at a shearing rate of 1000 s.sup.-1.Type: GrantFiled: April 9, 1996Date of Patent: April 15, 1997Assignee: AGFA-Gevaert, N.V.Inventors: Paul Coppens, Eric Hoes, Ren e De Keyzer, Bart Van der Linden
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Patent number: 5618659Abstract: The present invention is a polyester film base which has a surface approximately 5 nm thick. The surface of the film base has been altered to include about 6 to 15 atomic percent nitrogen in the form of imines, secondary amines and primary amines in the ratio of about 1:1:2. The invention also includes a film base whose surface includes oxygen in the form of hydroxyl, ether, epoxy, carbonyl or carboxyl groups wherein the oxygen is about 4 to 10 atomic percent above the original surface content of the base. The polyester film base can be either polyethylene terephthalate or polyethylene naphthalate.Type: GrantFiled: February 14, 1996Date of Patent: April 8, 1997Assignee: Eastman Kodak CompanyInventors: Jeremy M. Grace, Janglin Chen, Louis J. Gerenser, David A. Glocker
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Patent number: 5614360Abstract: 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: GrantFiled: December 16, 1994Date of Patent: March 25, 1997Assignee: Eastman Kodak CompanyInventors: Kenneth G. Harbison, Wilbur S. Gaugh, Thomas H. Whitesides, James A. Friday
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Patent number: 5597681Abstract: Imaging elements, such as photographic films and papers, are comprised of a support, an image-forming layer, an electrically-conductive layer and a protective overcoat layer that overlies the electrically-conductive layer. The protective overcoat layer is coated from a dispersion of core/shell polymer particles in a liquid organic medium, the polymer particles comprising 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.Type: GrantFiled: December 5, 1995Date of Patent: January 28, 1997Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Yongcai Wang, Mario D. DeLaura, James L. Bello
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Patent number: 5597680Abstract: Imaging elements, such as photographic films and papers, are comprised of a support, an image-forming layer and at least one auxiliary layer containing solvent-dispersible polymer particles. The auxiliary layer is coated from a dispersion of core/shell polymer particles in a liquid organic medium, the polymer particles comprising 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.Type: GrantFiled: December 5, 1995Date of Patent: January 28, 1997Assignee: Eastman Kodak CompanyInventors: Yongcai Wang, Charles C. Anderson, James L. Bello, Mario D. DeLaura
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Patent number: 5594047Abstract: Loaded latex dispersions of hydrophobic photographically useful compounds with a wide variety of polymer latices are prepared by preparing an oil phase solution of the hydrophobic compound or compounds, preferably essentially free of water-miscible or volatile solvent, combining the oil solution with one or more aqueous solutions, at least one of which contains a polymer latex, and mixing the combination of oil solution, aqueous solution and latex under high shear or turbulence sufficient to cause loading of the photographically useful compound into the dispersed polymer latex wherein the pH of the mixture does not need to be significantly changed.Type: GrantFiled: February 17, 1995Date of Patent: January 14, 1997Assignee: Eastman Kodak CompanyInventors: Ralph B. Nielsen, Thomas A. Rosiek, David F. Bates, James S. Honan, Hwei-Ling Yau
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Patent number: 5591863Abstract: This invention is related to improved hardeners for proteinaceous materials. More specifically this invention is related to improved imidazolium hardeners for crosslinking a proteinaceous material for use in a photographic film.Type: GrantFiled: June 5, 1995Date of Patent: January 7, 1997Assignee: Sterling Diagnostic Imaging, Inc.Inventors: Ludovic Fodor, Timothy D. Weatherill, Rolf T. Weberg