Polymer Of Unsaturated Monomer Patents (Class 430/536)
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Publication number: 20040166449Abstract: The present invention has an object of the present invention to provide a polyvinyl acetal resin for heat-developable photosensitive materials as well as a heat-developable photosensitive material while solving such problems as coating solution pot life, coloration of heat-developable photosensitive material, fog, poor gradation, insufficient sensitivity and poor undeveloped film storability and making it possible for the materials to acquire good image characteristics.Type: ApplicationFiled: March 2, 2004Publication date: August 26, 2004Applicant: SEKISUI CHEMICAL CO., LTD.Inventor: Yoshitaka Miyake
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Patent number: 6780576Abstract: A compound represented by formula (I): a compound represented by (II): or a mixture of at least one compound represented by formula (I) with at least one compound represented by formula (II), wherein M is hydrogen, an alkali atom or an ammonium group; R1 is hydrogen, a —(CH2)mSO3M group or a R2 is an alkyl-, alkenyl- or alkynyl- group having 6 to 25 carbon atoms; and m is an integer between 1 and 5; the use of at least one compound represented by the above-mentioned formula (I), at least one compound represented by the above-mentioned formula (II) or a mixture of at least one compound represented by the above-mentioned formula (I) and at least one compound represented by the above-mentioned formula (II) as a surfactant; and a photographic material comprising a support and a layer containing photosensitive silver halide, characterized in that the photographic material contains at least one compound represented by the above-mentioned formula (I), at leType: GrantFiled: June 23, 2003Date of Patent: August 24, 2004Assignee: Agfa-GevaertInventors: Etienne Van Thillo, Johan Loccufier, Hartwig Andries
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Publication number: 20040161712Abstract: A deformable color photographic silver halide material, said color photographic silver halide material comprising on a deformable plastic support at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, wherein the silver halide emulsions have an overall silver chloride content of at least 95 mol % and at least one silver halide emulsion contains silver halide crystals that are doped with 10 to 700 nmol iridiumType: ApplicationFiled: November 14, 2003Publication date: August 19, 2004Applicant: Agfa-GevaertInventors: Ly Cuong, Markus Geiger, Leon Vermeulen, Arno Schmuck
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Patent number: 6767677Abstract: This invention relates to a silver halide photographic display element comprising a support, a front side which has at least one silver halide emulsion layer, and a back side, said front and back sides being on opposite sides of the support; wherein said photographic element further comprises printed on the back side a printing ink composition comprising coalesced hydrophobic polymer particles having associated therewith a squarine infrared absorbing dye represented by formula I: wherein: R and R′ independently represents an aromatic or a heteroaromatic group such that the resulting dye has an absorption max greater than 800 nm; X represents an oxygen or nitrogen atom, or a group containing an oxygen or a nitrogen atom as a heteroatom, wherein the group must be attached through the heteroatom; W is a monovalent counter anion to balance the charge on the dye and m is 0 or 1.Type: GrantFiled: November 20, 2002Date of Patent: July 27, 2004Assignee: Eastman Kodak CompanyInventor: Kevin W. Williams
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Patent number: 6764813Abstract: A photothermographic film and a method for making same is taught. The film includes a support, a photothermographic imaging layer coated on the support, and a complement film generally confining the photothermographic imaging layer between the support and the complement film. The complement film is applied to the photothermographic imaging layer prior to exposure of the photothermographic imaging layer. The complement film retains any volatile materials present in the photothermographic imaging layer generated when thermal energy is applied thereto to develop a latent image exposed on the photothermographic imaging layer.Type: GrantFiled: May 17, 2002Date of Patent: July 20, 2004Assignee: Eastman Kodak CompanyInventors: Aparna V. Bhave, Karissa L. Eckert, Kenneth W. Metz, Lawrence B. Wallace, Mridula Nair, Thomas M. Smith, Barry M. Brown
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Patent number: 6762014Abstract: An image forming material is disclosed, comprising a support having thereon an image forming layer containing a light-insensitive organic silver salt and a reducing agent and a protective layer in that order, wherein the image forming layer or the protective layer contains a binder having a structure unit represented by the following formula in which Z is a divalent linkage group, R1 is a hydroxyl group, an alkyl group containing a hydroxyl group or an aryl group containing a hydroxyl group.Type: GrantFiled: May 30, 2003Date of Patent: July 13, 2004Assignee: Konica CorporationInventor: Toshihisa Takeyama
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Patent number: 6762003Abstract: The present invention relates to an imaging member comprising an imaging layer and at least one stiffening layer comprising a blend of polyolefin polymer and amorphous hydrocarbon resin. The invention further describes a method for making the imaging member, comprising extruding a foam polymer sheet, orienting the foam polymer sheet, bringing a stiffening layer comprising a blend of polyolefin polymer and amorphous hydrocarbon resin into contact with the oriented foam polymer sheet, and applying an imaging layer above the stiffening layer. A second method of forming an imaging member comprises extruding a foam polymer sheet, bringing at least one stiffening layer comprising a blend of polyolefin polymer and amorphous hydrocarbon resin into contact with the foam polymer sheet, orienting said foam polymer sheet and said stiffening layer and applying an imaging layer above said stiffening layer.Type: GrantFiled: May 24, 2002Date of Patent: July 13, 2004Assignee: Eastman Kodak CompanyInventors: Suresh Sunderrajan, Narasimharao Dontula, Peter T. Aylward, Nicholas I. Phippen
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Publication number: 20040121273Abstract: The invention provides a photothermographic material including, on a same surface of a substrate, a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, a development accelerator and a binder, the material containing, as the binder, a polymer formed by copolymerizing a monomer represented by the following general formula (M) in an amount from 10 to 70 mass %:Type: ApplicationFiled: November 28, 2003Publication date: June 24, 2004Inventors: Hajime Nakagawa, Yoshihisa Tsukada
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Publication number: 20040115572Abstract: A photothermographic material of the present invention has a support and an image-forming layer disposed thereon, and the image-forming layer contains a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder.Type: ApplicationFiled: December 2, 2003Publication date: June 17, 2004Inventors: Yoshihisa Tsukada, Hajime Nakagawa
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Patent number: 6749982Abstract: An imaging member comprising a polymer sheet, a primer layer contacting said polymer sheet, and an image receiving layer contacting said primer layer; wherein said primer layer comprises: a) polyethyleneimine; and b) latex; wherein the latex has a Tg lower than 25° C. and c) hydrophilic colloid material.Type: GrantFiled: September 27, 2002Date of Patent: June 15, 2004Assignee: Eastman Kodak CompanyInventors: Yuanqiao Rao, DeBasis Majumdar, Robert J. Kress, David E. Decker
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Publication number: 20040110074Abstract: This patent relates to an imaging member comprising a vacuous polymer base having adhered thereto an image formed on a transparent polymer sheet, wherein said vacuous polymer base has a density of less than 0.7 grams/cc and a modulus to density ratio of between 1500 and 4000 and wherein said image is in contact with said vacuous polymer base.Type: ApplicationFiled: December 1, 2003Publication date: June 10, 2004Applicant: Eastman Kodak CompanyInventors: Peter T. Aylward, Thomas M. Laney, Robert P. Bourdelais
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Patent number: 6740480Abstract: The invention provides a photographic element comprising a transparent polymer sheet, at least one layer containing negative working photosensitive silver halide and at least one upper protective shield to protect the surface of said transparent polymer.Type: GrantFiled: November 3, 2000Date of Patent: May 25, 2004Assignee: Eastman Kodak CompanyInventors: Peter T. Aylward, Alphonse D. Camp, Robert P. Bourdelais
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Patent number: 6730464Abstract: The present invention has an object of the present invention to provide a polyvinyl acetal resin for heat-developable photosensitive materials as well as a heat-developable photosensitive material while solving such problems as coating solution pot life, coloration of heat-developable photosensitive material, fog, poor gradation, insufficient sensitivity and poor undeveloped film storability and making it possible for the materials to acquire good image characteristics. The present invention is constituted of a polyvinyl acetal resin for heat-developable photosensitive materials which is a polyvinyl acetal resin synthesized by the acetalization reaction between a polyvinyl alcohol and an aldehyde and which comprises having a degree of polymerization of 200 to 3,000, a residual acetyl group content of 0 to 25 mole percent and a residual hydroxyl group content of 17 to 35 mole percent, as calculated while regarding one acetal group as two acetalized hydroxyl groups, a water content of not more than 2.Type: GrantFiled: September 17, 2002Date of Patent: May 4, 2004Assignee: Sekisui Chemical Co., Ltd.Inventor: Yoshitaka Miyake
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Publication number: 20040063049Abstract: A silver salt photothermographic dry imaging material comprising a support having thereon a photosensitive layer and a polymer layer, wherein the polymer layer comprises a copolymer of: (i) a fluorine containing acrylate or a fluorine containing methacrylate; and (ii) a monomer having a hydrophobic group in the molecule.Type: ApplicationFiled: September 9, 2003Publication date: April 1, 2004Applicant: Konica CorporationInventors: Akihisa Nakajima, Eiichi Ueda, Shinji Kudo, Kenji Ohnuma, Chiaki Nagaike, Miyuki Teranishi
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Publication number: 20040063005Abstract: This patent relates to an imaging member comprising a vacuous polymer base having adhered thereto an image formed on a transparent polymer sheet, wherein said vacuous polymer base has a density of less than 0.7 grams/cc and a modulus to density ratio of between 1500 and 4000 and wherein said image is in contact with said vacuous polymer base.Type: ApplicationFiled: September 26, 2002Publication date: April 1, 2004Applicant: Eastman Kodak CompanyInventors: Peter T. Aylward, Thomas M. Laney, Robert P. Bourdelais
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Publication number: 20040063023Abstract: An imaging member comprising a polymer sheet, a primer layer contacting said polymer sheet, and an image receiving layer contacting said primer layer; wherein said primer layer comprises: a) polyethyleneimine; and b) latex; wherein the latex has a Tg lower than 25° C. and c) hydrophilic colloid material.Type: ApplicationFiled: September 27, 2002Publication date: April 1, 2004Applicant: Eastman Kodak CompanyInventors: Yuanqiao Rao, DeBasis Majumdar, Robert J. Kress, David E. Decker
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Patent number: 6699629Abstract: The present invention relates to a method for placing process survivable indicia on a support for an imaging element comprising providing a support wherein the support comprises a closed cell foam core and adhered thereto at least one flange layer, wherein the closed cell foam core layer comprises a polymer that has been expanded through the use of a blowing agent, and placing process survivable ink on at least one flange layer, wherein the process survivable ink forms process survivable indicia. The invention also relates to a method for placing process survivable indicia on a support comprising a closed cell foam core and adhered thereto an upper flange layer and a lower flange layer. The invention also includes a method for placing process survivable indicia on a support by placing process survivable indicia on said closed cell foam core.Type: GrantFiled: December 23, 2002Date of Patent: March 2, 2004Assignee: Eastman Kodak CompanyInventors: Margaret J. Helber, Peter T. Aylward, Mridula Nair
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Patent number: 6689518Abstract: This invention relates to a photographic display element comprising a support, a front side which has at least one photographic imaging layer, and a back side, said front and back sides being on opposite sides of the support, wherein said photographic element further comprises applied on the front or back side a composition comprising coalesced hydrophobic polymer particles having associated therewith an infrared absorbing polymethine dye having covalently bonded thereto a phenylenediamine moiety.Type: GrantFiled: November 20, 2002Date of Patent: February 10, 2004Assignee: Eastman Kodak CompanyInventors: Kevin W. Williams, Ruizheng Wang
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Patent number: 6689517Abstract: The invention relates to an imaging element comprising at least one image layer and a base wherein said base comprises an upper polymer sheet having an elastic modulus of between 500 and 6,000 MPa said upper sheet being adhered to a textile having a roughness of between 0.8 and 8.0 micrometers, and a lower polymer sheet adhered to said textile.Type: GrantFiled: August 20, 2002Date of Patent: February 10, 2004Assignee: Eastman Kodak CompanyInventors: Cheryl J. Kaminsky, Robert P. Bourdelais, Steven J. Neerbasch, Kalpana Singh
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Patent number: 6689546Abstract: Thermally developable materials that comprise a support have at least two backside layers. One of these layers can be a protective layer comprising a film-forming polymer. The materials also includes a non-imaging backside conductive layer comprising non-acicular metal antimonate particles in a mixture of two or more polymers that includes a first polymer serving to promote adhesion of the backside conductive layer directly to the support or other layers, and a second polymer that is different than and forms a single phase mixture with the first polymer.Type: GrantFiled: November 26, 2002Date of Patent: February 10, 2004Assignee: Eastman Kodak CompanyInventors: Gary E. LaBelle, Kumars Sakizadeh, Thomas J. Ludemann, Aparna V. Bhave, Oanh V. Pham
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Patent number: 6660464Abstract: This invention comprises a silver halide photographic element comprising a support with low oxygen permeability and at least one silver halide emulsion layer containing a fragmentable electron donating compound of the formula: X—Y′ or a compound which contains a moiety of the formula —X—Y′; wherein X is an electron donor moiety, Y′ is a leaving proton H or a leaving group Y, with the proviso that if Y′ is a proton, a base, &bgr;−, is present in the emulsion layer, and wherein: 1) X—Y′ has an oxidation potential between 0 and about 1.4 V; and 2) the oxidized form of X—Y′ undergoes a bond cleavage reaction to give the radical X• and the leaving fragment Y′; and, optionally, 3) the radical X• has an oxidation potential≦−0.7V (that is, equal to or more negative than about −0.7V).Type: GrantFiled: June 19, 2000Date of Patent: December 9, 2003Assignee: Eastman Kodak CompanyInventors: Annabel A. Muenter, Steven P. Szatynski
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Patent number: 6656671Abstract: This invention relates to a photographic element comprising at least one silver halide containing imaging layer and a cushioning layer below said at least one imaging layer having a compression percentage of between 5 and 25%.Type: GrantFiled: November 20, 1998Date of Patent: December 2, 2003Assignee: Eastman Kodak CompanyInventors: Peter T. Aylward, Robert P. Bourdelais, Thaddeus S. Gula
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Publication number: 20030219663Abstract: The present invention relates to an imaging member comprising an imaging layer and at least one stiffening layer comprising a blend of polyolefin polymer and amorphous hydrocarbon resin. The invention further describes a method for making the imaging member, comprising extruding a foam polymer sheet, orienting the foam polymer sheet, bringing a stiffening layer comprising a blend of polyolefin polymer and amorphous hydrocarbon resin into contact with the oriented foam polymer sheet, and applying an imaging layer above the stiffening layer. A second method of forming an imaging member comprises extruding a foam polymer sheet, bringing at least one stiffening layer comprising a blend of polyolefin polymer and amorphous hydrocarbon resin into contact with the foam polymer sheet, orienting said foam polymer sheet and said stiffening layer and applying an imaging layer above said stiffening layer.Type: ApplicationFiled: May 24, 2002Publication date: November 27, 2003Applicant: Eastman Kodak CompanyInventors: Suresh Sunderrajan, Narasimharao Dontula, Peter T. Aylward, Nicholas I. Phippen
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Patent number: 6653061Abstract: The invention relates to a photographic label comprising a pragmatic polymer sheet, at least one layer comprising at least one image forming layer comprising photosensitive silver halide grains and dye forming coupler above said pragmatic polymer sheet, wherein said at least one image forming layer has an exposure time to obtain a usable Dmax of 1.5 of less than 0.01 seconds, wherein said at least one image forming layer is substantially free of image dye stabilizers, and wherein said polymer sheet has an L* of greater than 95.Type: GrantFiled: December 21, 2001Date of Patent: November 25, 2003Assignee: Eastman Kodak CompanyInventors: John B. Rieger, Robert P. Bourdelais
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Patent number: 6645705Abstract: The present invention is a photographic element which includes a support, at least one silver-halide emulsion layer superposed on the support and a processing-solution-permeable overcoat overlying the silver-halide emulsion layer that becomes water-resistant in the final product, without requiring lamination or fusing. The presence, in the coating composition, of a compound comprising a blocked copolymer of ethylene oxide and propylene oxide has been found to improve wet durability, prevent the retention of iron, and improve the conversion of the overcoat to a water-resistant layer during processing. The present invention is also directed to a method of making a photographic print involving developing the photographic element.Type: GrantFiled: November 5, 2001Date of Patent: November 11, 2003Assignee: Eastman Kodak CompanyInventors: Hwei-Ling Yau, Kevin M. O'Connor, Elmer C. Flood, David E. Decker
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Patent number: 6641973Abstract: The invention relates to an imaging member comprising a duplitized imaging layer and a support comprising at least one layer comprising an inorganic particle having an aspect ratio of at least 10 to 1, a lateral dimension of from 0.01 &mgr;m to 5 &mgr;m, and a vertical dimension from 0.5 nm to 10 nm, and polymeric resin matrix.Type: GrantFiled: October 7, 2002Date of Patent: November 4, 2003Assignee: Eastman Kodak CompanyInventors: Narasimharao Dontula, Robert P. Bourdelais, Debasis Majumdar, Cheryl J. Kaminsky
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Patent number: 6630283Abstract: A photosensitive element includes a layer of a photosensitive material on a transparent, multilayer, polymeric support having numerous alternating layers of at least two different polymeric materials. The polymeric multilayer support reflects at least 50% of actinic radiation in the range of wavelengths to which the photosensitive material is sensitive. If the polymeric multilayer reflector includes numerous, thin, alternating layers located at the surface of the polymeric support closest to the photosensitive material, the element not only provides increased speed but also provides an antihalation effect. In another aspect, a multilayer reflector is located a distance removed from the photosensitive layer sufficient to reduce any woodgrain that would otherwise occur, while increasing speed.Type: GrantFiled: September 7, 2000Date of Patent: October 7, 2003Assignee: 3M Innovative Properties CompanyInventors: Sharon M. Simpson, Michael F. Weber, Nicholas A. Stacey
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Publication number: 20030186180Abstract: A water-based coating composition is disclosed, comprising a latex comprising a polymer impregnated with an infared absorbing compound and a water-soluble polyester or latex comprising polyer containing an active methylene group. An infrared absorbing film and a photothermographic material by use thereof are also disclosed.Type: ApplicationFiled: September 18, 2002Publication date: October 2, 2003Inventors: Eiichi Ueda, Chiaki Nagaike
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Publication number: 20030162122Abstract: The invention relates to a photographic element comprising a base and hydrophillic colloid layers comprising at least one layer comprising photosensitive silver halide, wherein said hydrophilic colloid imaging layers further comprise a flexibilizer agent and said flexibilizer agent has a logP of greater than −1.2.Type: ApplicationFiled: December 21, 2001Publication date: August 28, 2003Applicant: Eastman Kodak CompanyInventors: Mridula Nair, Robert P. Bourdelais, Jehuda Greener
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Patent number: 6599669Abstract: The invention relates to a photographic element comprising nacreous pigment.Type: GrantFiled: August 16, 2001Date of Patent: July 29, 2003Assignee: Eastman Kodak CompanyInventors: Peter T. Aylward, Robert P. Bourdelais, Alphonse D. Camp, Pamela M. Ferguson
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Patent number: 6596451Abstract: The invention relates to an imaging element comprising an imaging layer, a nacreous pigment, and at least one layer comprising voids.Type: GrantFiled: August 16, 2001Date of Patent: July 22, 2003Assignee: Eastman Kodak CompanyInventors: Narasimharao Dontula, Peter T. Aylward, Robert P. Bourdelais, Alphonse D. Camp
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Patent number: 6596447Abstract: This invention relates to a photographic element comprising at least one layer comprising nacreous pigment above the image.Type: GrantFiled: August 16, 2001Date of Patent: July 22, 2003Assignee: Eastman Kodak CompanyInventors: Alphonse D. Camp, Peter T. Aylward, Robert P. Bourdelais
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Publication number: 20030134212Abstract: 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: ApplicationFiled: December 26, 2001Publication date: July 17, 2003Applicant: Eastman Kodak CompanyInventors: Richard A. Castle, Janglin Chen, Debasis Majumdar
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Patent number: 6589720Abstract: The invention relates to an imaging element comprising a coated coated paper base, a lower biaxially oriented sheet, and an upper biaxially oriented sheet.Type: GrantFiled: October 29, 2001Date of Patent: July 8, 2003Assignee: Eastman Kodak CompanyInventors: Robert P. Bourdelais, Peter T. Aylward, Geoffrey Mruk
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Patent number: 6586165Abstract: The present invention is a photographic element which includes, in order, a transparent support, at least one silver halide emulsion layer superposed on the support, optionally a white or diffuse reflective layer, and a processing-solution-permeable protective layer on the backside, which protective layer becomes water-resistant in the final product without lamination or fusing. The present invention is also directed to a method of making a photographic print involving developing the photographic element. The resulting print is viewed through the support, which provides protection against scratches and stains, while the polymeric overcoat provides water and stain protection to the reverse of the print where minor scratches or damage are not critical, since the image is not viewed from this side. Thus, this invention provides for a tough, stain resistant and transparent viewing surface and a stain resistant back side, which is permeable to processing solutions.Type: GrantFiled: April 27, 2001Date of Patent: July 1, 2003Assignee: Eastman Kodak CompanyInventors: Kevin M. Donovan, Glenn M. Brown, Lloyd A. Lobo
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Patent number: 6579656Abstract: A photographic film with a polymeric acid-reacting neutralizing layer comprising a half ester of isobutylene/maleic anhydride copolymer is provided herein. This polymeric acid-reacting neutralizing layer is used to attenuate a photographic film's development process, which is effective under alkali conditions, by lowering the pH of the alkaline processing composition.Type: GrantFiled: June 29, 2001Date of Patent: June 17, 2003Assignee: Polaroid CorporationInventors: Agota F. Fehervari, William L. Grimm
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Patent number: 6573011Abstract: The invention relates to a packaging label comprising in order an environmental protection layer, an image formed by means of silver halide, a base, an adhesive, and a peelable back wherein said environmental protection layer comprises a mixture of vinyl polymer and urethane polymer wherein said urethane polymer has an indentation modulus less than 0.6 GPa and wherein said environmental protection layer is less than 10 micrometers in thickness.Type: GrantFiled: December 21, 2001Date of Patent: June 3, 2003Assignee: Eastman Kodak CompanyInventors: Mridula Nair, Tamara K. Jones, Ramasubramaniam Hanumanthu, Joseph S. Sedita
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Patent number: 6566024Abstract: The invention relates a photographic label comprising a pragmatic polymer sheet, at least one layer comprising an image comprising dyes formed from couplers above said pragmatic polymer sheet, and a lower strippable paper carrier, a pressure sensitive adhesive layer between said lower strippable carrier and said pragmatic polymer sheet, and an environmental protection layer overlaying at least one photosensitive layer wherein said carrier has exposed edges where it has a greater surface area than the pragmatic sheet and said image further comprises fiducial marks.Type: GrantFiled: December 21, 2001Date of Patent: May 20, 2003Assignee: Eastman Kodak CompanyInventors: Robert P. Bourdelais, Mridula Nair, William T. Rochford, John B. Rieger
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Patent number: 6566033Abstract: 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: GrantFiled: June 20, 2002Date of Patent: May 20, 2003Assignee: Eastman Kodak CompanyInventors: Debasis Majumdar, Narasimharao Dontula, Suresh Sunderrajan, Peter T. Aylward, Kelly S. Robinson, Melvin M. Kestner
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Patent number: 6565987Abstract: Optical brighteners are widely used for decreasing the apparent yellowness of polymeric materials. Polyethylene, as a coating film for photographic paper has presented unique problems because of its general lack of compatibility with conventional, large, fluorescent brightener molecules. The present invention provides a solution to this problem by incorporating into the polyethylene an optical brightener compatibilizing amount of a second polyolefin having alkyl groups pendant from the polymer backbone which serves to reduce the exudation of the optical brightener in articles or substrates comprised of or coated with such compositions.Type: GrantFiled: November 12, 1999Date of Patent: May 20, 2003Assignee: Eastman Chemical CompanyInventor: Gether Irick, Jr.
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Publication number: 20030087208Abstract: The invention relates to an imaging element comprising a coated coated paper base, a lower biaxially oriented sheet, and an upper biaxially oriented sheet.Type: ApplicationFiled: October 29, 2001Publication date: May 8, 2003Applicant: Eastman Kodak CompanyInventors: Robert P. Bourdelais, Peter T. Aylward, Geoffrey Mruk
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Patent number: 6558889Abstract: A surface treatment method for enhancing hydrophobicity of the surface of a film support is disclosed, comprising subjecting at least one side of the surface to a gas-discharge plasma treatment in a gas phase atmosphere comprising (a) an inert gas comprising argon or helium and (b) a reactive gas comprising a hydrocarbon gas or fluorinated hydrocarbon gas. There is also disclosed a photothermographic material by the use of the support having been subjected to the surface treatment.Type: GrantFiled: August 27, 2002Date of Patent: May 6, 2003Assignee: Konica CorporationInventors: Kiyoshi Oishi, Kazuhiro Fukuda
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Patent number: 6555301Abstract: Photographic silver halide materials are prepared in a more economical and environmentally acceptable manner by using a specific matting agent in a adhesion-promoting layer between a polymeric support and one or more silver halide emulsion layers. The matting agent has an average particle size of at least 1 &mgr;m and up to about 10 &mgr;m and a glass transition temperature of at least 120° C. Specific matting agents are composed of a polymer represented by the following Structure I: wherein A represents recurring units derived from one or more polyfunctional ethylenically unsaturated polymerizable monomers, and B represents recurring units derived from one or more monofunctional ethylenically unsaturated polymerizable monomers, x is from about 5 to 100 weight %, and y is from 0 to about 95 weight %.Type: GrantFiled: July 9, 2002Date of Patent: April 29, 2003Assignee: Eastman Kodak CompanyInventors: Dennis E. Smith, Patrick M. Lynch, Pedro R. Quinones, Eric J. Adsit
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Publication number: 20030077546Abstract: The present invention is a photographic element which includes, in order, a transparent support, at least one silver halide emulsion layer superposed on the support, optionally a white or diffuse reflecttive layer, and a processing-solution-permeable protective layer on the backside, which protective layer becomes water-resistant in the final product without lamination or fusing. The present invention is also directed to a method of making a photographic print involving developing the photographic element. The resulting print is viewed through the support, which provides protection against scratches and stains, while the polymeric overcoat provides water and stain protection to the reverse of the print where minor scratches or damage are not critical, since the image is not viewed from this side. Thus, this invention provides for a tough, stain resistant and transparent viewing surface and a stain resistant back side, which is permeable to processing solutions.Type: ApplicationFiled: April 27, 2001Publication date: April 24, 2003Applicant: Eastman Kodak CompanyInventors: Kevin M. Donovan, Glenn M. Brown, Lloyd A. Lobo
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Patent number: 6544714Abstract: The invention relates to a packaging material comprising at least one layer comprising photosensitive silver halide, at least one layer comprising nacreous pigment, and at least one layer comprising a pressure sensitive adhesive.Type: GrantFiled: August 16, 2001Date of Patent: April 8, 2003Assignee: Eastman Kodak CompanyInventors: Robert P. Bourdelais, Peter T. Aylward, Alphonse D. Camp
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Patent number: 6544722Abstract: The invention is directed to a process for the preparation of polymer laminated base paper, said process comprising laminating a base paper web on at least one side thereof with at least one polymer layer by extrusion-coating at a coating speed of 300 m/min or more, wherein the said base paper web is heated prior to laminating.Type: GrantFiled: March 2, 2001Date of Patent: April 8, 2003Assignee: Fuji Photo Film B.V.Inventors: Jan Bastiaan Bouwstra, Ieke de Vries
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Patent number: 6544713Abstract: The invention relates to an imaging element comprising at least one layer comprising nacreous pigment and polymer.Type: GrantFiled: August 16, 2001Date of Patent: April 8, 2003Assignee: Eastman Kodak CompanyInventors: Peter T. Aylward, Narasimharao Dontula, Alphonse D. Camp, Robert P. Bourdelais
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Publication number: 20030059697Abstract: The invention relates to an imaging element comprising an imaging layer, a nacreous pigment, and at least one layer comprising voids.Type: ApplicationFiled: August 16, 2001Publication date: March 27, 2003Applicant: Eastman Kodak CompanyInventors: Narasimharao Dontula, Peter T. Aylward, Robert P. Bourdelais, Alphonse D. Camp
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Patent number: 6537656Abstract: The invention relates to an imaging member 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.Type: GrantFiled: November 28, 2000Date of Patent: March 25, 2003Assignee: Eastman Kodak CompanyInventors: Narasimharao Dontula, Suresh Sunderrajan, Thaddeus S. Gula, William A. Mruk
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Patent number: 6531258Abstract: The invention relates to an imaging element comprising at least one imaging layer wherein said imaging layer comprises photosensitive silver halide layer comprising dye forming couplers, a transparent polymer pragmatic sheet below said at least one imaging layer, an adhesive layer below said pragmatic sheet, and a black carrier sheet below said adhesive layer.Type: GrantFiled: December 21, 2001Date of Patent: March 11, 2003Assignee: Eastman Kodak CompanyInventors: John B. Rieger, David C. Wideman, Robert P. Bourdelais