Protective Or Antiabrasion Layer Patents (Class 430/961)
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Patent number: 5275927Abstract: Photothermographic articles containing interfacial barriers comprising a layer of a polymeric organic acid containing carboxyl and/or sulfo groups in direct contact with an adjacent layer comprising a basic polymer capable of forming hydrogen bonds with the polymeric organic acid are disclosed. A crosslinked barrier is formed at the interface between the layers which has substantial impermeability to chemical diffusion.Type: GrantFiled: July 16, 1992Date of Patent: January 4, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Oanh V. Pham, Thomas J. Ludemann
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Patent number: 5266455Abstract: Protective overcoat compositions and photographic elements containing same comprise:(a) a hydroxylated latex polymer;(b) a hydrolyzed metal lower alkoxide; and,(c) a fluoroalkyl polyether surface active agent.The overcoat is transparent and flexible and provides protection against scratches and abrasion.Type: GrantFiled: September 29, 1992Date of Patent: November 30, 1993Assignee: Eastman Kodak CompanyInventor: Raymond T. Jones
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Patent number: 5258247Abstract: A photoimaged article having a protected image composed of a colored image on a support; and a thin, transparent, flexible, nonself supporting, protective layer on the surface of the image. The layer is substantially nontacky at room temperature, and has at least a major amount based on the weight of the layer of one or more thermoplastic resins of a vinyl acetal, vinyl chloride, or acrylic polymer or copolymer having a Tg of from about 35.degree. C. to about 110.degree. C. The layer is capable of being adhesively transferred directly to the image when the layer is first applied on the release surface of a temporary support, and the image and protective layer are laminated together under pressure at temperatures of between about 60.degree. C. to about 180.degree. C. with subsequent removal of the temporary support. The side of said layer opposite to the image is free from additional layers. The adhesive layer is one which does not cohesively block at temperatures of about 50.degree. C. or less.Type: GrantFiled: November 6, 1989Date of Patent: November 2, 1993Assignee: Hoechst Celanese CorporationInventor: Stephan J. W. Platzer
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Patent number: 5258261Abstract: A photosensitive, resist-imageable color element comprises a transparent support laser, colored photosensitive resist layer, and a water-removable polymeric layer with water-insoluble polymeric particles in the water-removable polymeric layer.Type: GrantFiled: August 30, 1991Date of Patent: November 2, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventor: Michael B. Heller
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Patent number: 5254448Abstract: Disclosed is a silver halide photographic light-sensitive material that comprises a support having thereon a conductive layer containing a water-soluble polymer or a metal oxide and a photographic component layer having at least one surface active agent containing a fluorine compound. The silver halide photographic light-sensitive material according to this invention does not cause any deterioration of antistatic properties even after photographic processing, also does not cause any faulty transport even when used in the automatic transport apparatus comprising a transport path having a surface coated with Teflon, and not tends to cause flaws even after raw stock.Type: GrantFiled: December 23, 1991Date of Patent: October 19, 1993Assignee: Konica CorporationInventors: Taketoshi Yamada, Yasuhiko Takamuki, Youji Aritomi
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Patent number: 5236793Abstract: The invention provides a material for overcoat on a color filter for liquid crystal display, characterized in that the material comprises a water-soluble photopolymerizable substance, a cationically polymerizable, water-insoluble photopolymerizable substance, a photopolymerization initiator and a precursor of photo-setting catalyst, and a material for a color filter which comprises a mixture of the material for overcoat and a coloring agent.The invention also provides a process for forming an overcoat on a color filter, or for forming a color filter characterized in that the process comprises the steps of applying the material for color filter overcoat or the material for a color filter, subjecting the coating to exposure to light and performing development using an aqueous solution of alkali.Type: GrantFiled: February 6, 1992Date of Patent: August 17, 1993Assignee: Okuno Chemical Industries Co., Ltd.Inventors: Kenichi Nishiwaki, Shuji Matsushima, Kenzo Fukuyoshi, Toyoshi Nishimoto
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Patent number: 5219702Abstract: A process for transferring toned images to an image receptor at low temperatures with improved back transfer characteristics.Type: GrantFiled: February 27, 1991Date of Patent: June 15, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventor: Robert P. Held
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Patent number: 5213943Abstract: Method for making lithographic aluminium offset printing plates according to the DTR-process by photo-exposing a photosensitive monosheet layer assemblage comprising a hydrophilic aluminium foil, a water-swellable intermediate layer comprising a non-proteinic hydrophilic film-forming polymer, and a silver halide emulsion layer, applying an aqueous alkaline solution thereto in the presence of a developing agent and a silver halide solvent, allowing to reduce the photo-exposed silver halide, allowing the unreduced silver halide or complexes thereof to diffuse to said aluminium foil to form a silver image thereon, and separating said emulsion layer and said intermediate layer from the imaged aluminium foil. The invention also relates to the photosensitive monosheet layer assemblage used for making such printing plates.Type: GrantFiled: September 13, 1991Date of Patent: May 25, 1993Assignee: Agfa-Gevaert, N.V.Inventors: Paul J. Coppens, Ludovicus H. Vervloet, Luc H. Leenders, Ronald Schuerwegen
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Patent number: 5208134Abstract: Disclosed herein are an image-forming material and a process for forming images, which can be applied to second originals used in the field of surveying.The image-forming material comprises a roughened plastics film substrate and a transparent resin layer, colored resin layer, photosensitive resin layer and protective layer formed one over another (in the order mentioned) on the roughened surface of the substrate, said four layers being so designed as un-exposed part thereof to be removed completely by dissolution or swelling during development after exposure to active rays. It permits the formation of a colored relief image without any dyeing step and gives rise to a good image free of base fogging without causing any decrease in printing sensitivity.Type: GrantFiled: February 22, 1991Date of Patent: May 4, 1993Assignee: Kimoto Co., Ltd.Inventors: Yoshikatsu Maruyama, Toshimichi Katsuoka, Yasunori Sugiyama
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Patent number: 5206128Abstract: A silver halide photographic material is described including a support having thereon an emulsion layer and a protective layer in this order, wherein gelatin is contained in the protective layer in an amount of at least 1.5 g/m.sup.2, gelatin is contained in the emulsion layer in an amount of at least 1.0 g/m.sup.2, and the the coated amount of gelatin in the protective layer and the emulsion layer is a total of at most 3.5 g/m.sup.2.Type: GrantFiled: July 3, 1991Date of Patent: April 27, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Naoki Arai
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Patent number: 5206127Abstract: A silver halide photographic material is provide having at least one silver halide emulsion layer on one surface of a support and having on the other surface of the support, a backing layer containing a mat agent comprising grains having a mean grain size of 15 .mu.m or more in a proportion of at least 5% by volume. Due to the presence of the particular mat agent, the material has improved feedability and has small amount of haze.Type: GrantFiled: June 21, 1991Date of Patent: April 27, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Kunio Ishigaki, Yuuzou Muramatsu
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Patent number: 5187054Abstract: A photographic material is disclosed containing in a non-light sensitive layer above the emulsion layer an anti-sludging compound corresponding to following general formula (I): ##STR1## wherein Ball represents a ballast group, L represents a divalent linking group and Z represents the necessary atoms to close a heterocyclic ring with the proviso that said heterocyclic ring contains no mercapto substituent. The divalent linking group is preferably chosen from the list of --O--, --S--, --CO--NR.sub.1 --, --NR.sub.2 --NR.sub.3 --,--SO.sub.2 --NR.sub.4 --, --O--CR.sub.5 R.sub.6 --CO--NH-- wherein each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 represents hydrogen, alkyl or aralkyl. The heterocyclic ring is preferably chosen from the list of imidazole, benzimidazole, 1,2,3-triazole, 1,2,4-triazole, benzotriazole, tetrazole, indazole, uracil and hydantoin.The non-light sensitive layer, wherein the anti-sludging compound is added, is preferably the top protective layer.Type: GrantFiled: June 1, 1992Date of Patent: February 16, 1993Assignee: Agfa-Gevaert N.V.Inventors: Jean-Marie O. Dewanckele, Emiel A. Hofman
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Patent number: 5185238Abstract: A photographic element comprising (A): a photographic film patrone, having one end of a photographic film wound around a spool rotatably provided within the main body of the patrone, said film being delivered through the film outlet of the main body of the patrone to the outside by rotating said spool in the direction of film delivery and (B): a photographic film wherein at least one protective coat layer is provided on a support of said photographic film and said protective coat layer includes a radiation-cured resin.Type: GrantFiled: July 15, 1991Date of Patent: February 9, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Toru Oikawa
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Patent number: 5178996Abstract: Disclosed is a photographic element having a support, at least one layer for carrying an image on the support and a protective coated layer cured by an active energy ray thereon, wherein the protective coated layer is one obtained by curing, by irradiation of an active energy ray, an active energy ray curable composition containing a prepolymer containing at least 2 epoxy groups in the molecule and a polymerization initiator which can be activated by the active energy ray; and the active energy ray curable composition is coated on the layer carrying the image; and the layer carrying the image has a water content of 20.0% by weight or less. Disclosed is also a process for preparing the photographic element constituted as the above.Type: GrantFiled: June 11, 1992Date of Patent: January 12, 1993Assignees: Konica Corporation, Asahi Denka Kogyo K.K.Inventors: Tohru Kobayashi, Yasuo Nishi, Nakaya Nakano, Kazuo Ohkawa, Hiroyuki Tachikawa
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Patent number: 5175073Abstract: A high-contrast room-light-handleable black-and-white silver halide photographic film especially adapted for use as a dry-dot-etchable contact film in the graphic arts is comprised of a support having in order on one side thereof (1) a radiation-sensitive layer comprising silver halide grains, a hydrophilic colloid and a polymer latex, (2) an interlayer comprising a hydrophilic colloid and a polymer latex, and (3) an overcoat layer comprising a hydrophilic colloid, a matting agent and a light-scattering agent, wherein the interlayer has a refractive index in the range of from about 1.4 to about 1.7 and a thickness which is in the range of from about 0.5 to about 5 microns and is at least twice that of the overcoat layer, and wherein the film contains in the radiation-sensitive layer, or a layer contiguous thereto, a hydrazine compound which functions as a nucleating agent.Type: GrantFiled: March 26, 1991Date of Patent: December 29, 1992Assignee: Eastman Kodak CompanyInventors: Anthony D. Gingello, David F. Jennings, Richard D. Lucitte, Hermano P. Rocha
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Patent number: 5168033Abstract: A silver halide photographic material having at least one silver halide emulsion layer formed on a base is disclosed said base is a reflective base having an oxygen permeability of no more than 2.0 ml/m.sup.2.hr.atm, at least one of said silver halide emulsion layers is a magenta dye forming layer containing at least one magenta coupler of formula (I) shown below, and the layers positioned above said silver halide emulsion layer with respect to said base have a gelatin content of no less than 3 g/m.sup.2 : ##STR1## wherein Z represents a group of the non-metallic atoms necessary for forming a nitrogen-containing heterocyclic ring, provided that the ring formed by Z may have a substituent; X represents a hydrogen atom or a substituent capable of being eliminated upon reaction with the oxidation product of a color developing agent; and R is a hydrogen atom or a substituent.Type: GrantFiled: September 6, 1990Date of Patent: December 1, 1992Assignee: Konica CorporationInventors: Shun Takada, Kaoru Onodera
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Patent number: 5166043Abstract: Photographic light-sensitive silver halide material for forming direct-positive images comprising a support, a light-sensitive emulsion layer comprising unfogged internal latent image-type silver halide grains dispersed in a hydrophilic colloid binder and comprising a development nucleator, and at least one protective hydrophilic colloid layer, wherein said light-sensitive emulsion comprises at least one compound that during the development of said material in a surface developer provides iodide ions, the weight ratio of the hydrophilic colloid binder of said emulsion layer to silver halide expressed as silver nitrate ranging from 0.4:1 to 3:1, and said protective hydrophilic colloid layer having a thickness in dry state of 1 to 3 .mu.m. The present invention also relates to a method for making direct-positive images with such a photographic light-sensitive silver halide material.Type: GrantFiled: July 19, 1991Date of Patent: November 24, 1992Assignee: Agfa-Gevaert, N.V.Inventor: Jozef P. De Prijcker
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Patent number: 5164281Abstract: A photosensitive body for electrophotography has as its principal constituent a photoconductive layer having amorphous silicon with hydrogen, a surface layer having a greater optical band gap than the photoconductive layer formed on a photoconductive base member, and an intermediate layer sandwiched therebetween.Type: GrantFiled: November 29, 1989Date of Patent: November 17, 1992Assignee: Sharp Kabushiki KaishaInventors: Takashi Hayakawa, Shoichi Nagata, Shiro Narukawa, Kazuki Wakita, Kunio Ohashi, Yoshikazu Fujiwara
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Patent number: 5162193Abstract: A radiation sensitive device is provided with a discontinuous covering layer to improve vacuum draw down. The covering layer is produced by forming a solution or dispersion of the layer-forming material in a liquid hydrocarbon. Drops of the solution or dispersion are then sprayed onto the radiation sensitive device to form the discontinuous covering layer.Type: GrantFiled: November 19, 1990Date of Patent: November 10, 1992Assignee: Du Pont-Howson LimitedInventors: David E. Murray, Andrew E. Matthews
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Patent number: 5137802Abstract: A silver halide photographic material having a layer containing an electrically conductive material formed on one surface of a support and at least one silver halide emulsion layer formed on the other surface of the support is disclosed, wherein the outermost layer on the side where the silver halide emulsion layer is formed contains an organopolysiloxane and a nonionic surfactant having a polyoxyethylene unit, the latter being optionally combined with, or replaced by, a fluorine-containing compound.Type: GrantFiled: December 28, 1990Date of Patent: August 11, 1992Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Eiichi Ueda, Noriki Tachibana, Nobuaki Kagawa, Minoru Ishikawa, Hideo Ota
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Patent number: 5135836Abstract: A polyolefin coating provides slip and antiblock properties to a multilayer, peel-apart photosensitive element.Type: GrantFiled: September 20, 1991Date of Patent: August 4, 1992Assignee: E. I. du Pont de Nemours and CompanyInventor: Richard P. Pankratz
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Patent number: 5124227Abstract: It surprisingly has been found that a protective coating composition for diazo-containing materials can be prepared from a cellulose ester and microcrystalline silica. The coating compositions of the invention provide protection for diazo-containing materials from physical and chemical damage. In particular, the protective coating compositions of the invention protect the diazo-containing materials from abrasion.The invention further relates to a method for providing a protective coating on a diazo phototool comprising coating at least the surface of the diazo phototool containing diazo material with a composition comprising a cellulose ester and microcrystalline silica.Type: GrantFiled: March 15, 1990Date of Patent: June 23, 1992Assignee: Graphics Technology International Inc.Inventors: George Hodgins, Marie B. Ray
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Patent number: 5122445Abstract: A silver halide photographic material is disclosed, comprising a support having thereon at least one light-sensitive silver halide emulsion layer and at least one light-insensitive upper layer, wherein the light-insensitive upper layer contains porous fine powder particles having a surface area of at least 400 m.sup.2 /g.Type: GrantFiled: June 19, 1990Date of Patent: June 16, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Kunio Ishigaki
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Patent number: 5108887Abstract: A special group of zeromethine dyess which are desensitizers for sherical grain emulsions but which J-aggregate on tabular grains is described. Tabular emulsions containing these dyes are particularly useful as X-ray elements since the maximum emission peak of the dyes present therein closely matches the ouput of intensifying screens used therewith.Type: GrantFiled: December 5, 1990Date of Patent: April 28, 1992Assignee: E. I. du Pont de Nemours and CompanyInventors: Dietrich M. Fabricius, James J. Welter
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Patent number: 5104777Abstract: A high-contrast room-light-handleable black-and-white photographic element is comprised of a support having on one side thereof a silver halide emulsion layer and having, on the same side of the support as the silver halide emulsion layer, both a filter dye layer in which the dye is immobile and a matte layer comprised of a matting agent dispersed in a hydrophilic colloid that serves as a binder. In this element, the filter dye layer serves to provide uniform filtering of incident light, while the matte layer provides a rough surface which facilitates rapid vacuum draw-down during contact exposure.Type: GrantFiled: May 1, 1990Date of Patent: April 14, 1992Assignee: Eastman Kodak CompanyInventors: Ronald J. Schmidt, Richard J. Kapusniak, Louis I. Nagy
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Patent number: 5089382Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein in at least one silver halide emulsion layer contains a compound represented by the following general formula (I) ##STR1## wherein Z represents an oxygen atom or a sulfur atom; R.sub.101 and R.sub.102, which may be the same or different, represent each an alkyl group and at least one of R.sub.101 and R.sub.102 is a butyl group, a pentyl group, a hexyl group, a heptyl group or an octyl group; V.sub.1, V.sub.2, V.sub.3, V.sub.4, V.sub.5, V.sub.6, V.sub.7 and V.sub.8, which may be the same or different, each represent a hydrogen atom, a halogen atom, an alkyl group, an acyl group, an acyloxy group, an alkoxycarbonyl group, a carbamoyl group, a sulfamoyl group, a carboxyl group, a cyano group, an alkoxy group, an alkylthio group, an alkylsulfonyl group, a sulfo group or an aryl group; of V.sub.1 to V.sub.Type: GrantFiled: October 17, 1989Date of Patent: February 18, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Nobuo Sakai
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Patent number: 5085981Abstract: A photographic recording material comprising a support, at least one photosensitive silver halide emulsion layer, a protective layer on that side of the at least one silver halide emulsion layer remote from the support and, optionally a backing layer, the protective layer and/or the backing layer containing in combination (a) a polymeric compound (I) containing at least 0.2 mol-% recurring units corresponding to the following formula ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 may be the same of different and represent hydrogen, alkyl or halogen,L is a chemical bond or a standard binding link andX is a reactive group,and (b) a finely divided crystalline SiO.sub.2 dispersion having an average particle diameter (number average) of from 0.7 to 1.2 .mu.m and containing less than 0.2% by volume particles larger than 4 .mu.m in size, are distinguished by good retouchability in combination with good mechanical properties.Type: GrantFiled: April 19, 1990Date of Patent: February 4, 1992Assignee: Agfa-Gevaert AktiengesellschaftInventors: Wolfgang Himmelmann, Prem Lalvani, Hans-Theo Buschmann, Gunter Helling
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Patent number: 5085980Abstract: A photographic element is disclosed comprising a support having provided thereon a highly water-absorbing high molecular weight compound having degree of swelling of 5 or more.Type: GrantFiled: March 12, 1991Date of Patent: February 4, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshiaki Aono, Koichi Nakamura, Takeshi Shibata
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Patent number: 5081005Abstract: The surface of metallic features are coated with a desensitizer composition comprising an amino-silane to reduce the likelihood of chemical interaction between the metallic feature and a photosensitive functional group that is included in a dielectric composition that is coated over the metallic features. The chemical interaction adversely affects the photosensitivity of the dielectric composition and, thus, inhibits the formation of complete and well defined via interconnections through the dielectric composition.Type: GrantFiled: March 24, 1989Date of Patent: January 14, 1992Assignee: The Boeing CompanyInventors: Kishore K. Chakravorty, Jay M. Cech
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Patent number: 5077185Abstract: An element comprising a support having an antistatic layer applied to one side thereof and wherein said antistatic layer also contains antihalation dyes absorbing light at 440 nm and below and with matte particles therein, is described. A photosensitive layer, e.g., photographic silver halide layer can be coated on the opposite side of the support. The element exhibits excellent antistatic and antihalation properties as well as low dye stain and improved dimensional stability, compared to elements wherein the antihalation dyes are coated in a separate layer. These products are especially useful as so-called "bright-light films" that are designed for contact printing and the like.Type: GrantFiled: March 28, 1991Date of Patent: December 31, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventors: Thomas B. Cho, Ray B. Myers
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Patent number: 5070006Abstract: A photographic recording material comprising a support, at least one photosensitive, gelatine-containing silver halide emulsion layer on one side of the support and a gelatine-containing NC layer on the other side of the support, in which the NC layer contains a certain hydrophilic polymer, is distinguished by the fact that there is relatively little E.sub.a curl during drying whereas sufficient E.sub.i curl is present after drying, so that the material is not damaged during processing.Type: GrantFiled: April 26, 1991Date of Patent: December 3, 1991Assignee: Agfa Gevaert AGInventors: Werner Krafft, Gunter Helling, Gunter Matschke
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Patent number: 5066572Abstract: This invention describes a substantially less pressure sensitive photographic film comprising a support, at least one light sensitive silver halide element, and an overlaying element comprising gelatin-grafted or case-hardened gelatin-grafted soft polymer particle composite element. The incorporation of such an overlaying composite particle cushioning layer does not compromise either the physical properties or physical integrity of the film unit. This invention is particularly suitable for highly pressure sensitive tabular grain emulsions.Type: GrantFiled: March 22, 1990Date of Patent: November 19, 1991Assignee: Eastman Kodak CompanyInventors: Kevin M. O'Connor, Richard P. Szajewski, Pranab Bagchi
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Patent number: 5063147Abstract: Disclosed is a silver halide photographic light-sensitive material comprising a support and a light-sensitive silver halide emulsion layer provided on the support, wherein a surface layer provided on the photographic light-sensitive material contains an aliphatic carboxylic ester having the formula (I) or the formula (II):R.sup.11 COOR.sup.12 (I)in which each of R.sup.11 and R.sup.12 independently is an aliphatic hydrocarbon group having 12-70 carbon atoms; at least one of R.sup.11 and R.sup.12 is branched; and the number of the total carbon atoms contained in R.sup.11 and R.sup.12 is in the range of 32 to 140,R.sup.21 OOCXCOOR.sup.22 (II)in which each of R.sup.21 and R.sup.22 independently is an aliphatic hydrocarbon group having 12-70 carbon atoms; X is a divalent linking group; at least one of R.sup.21, R.sup.22 and X is a branched aliphatic hydrocarbon group having 12 or more carbon atoms; and the number of the total carbon atoms contained in R.sup.21 and R.sup.22 is in the range of 32 to 140.Type: GrantFiled: April 27, 1990Date of Patent: November 5, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Masakazu Yoneyama, Ryosuke Yamada, Yosuke Nishiura, Yukio Maekawa, Yuzo Higaki, Yoshiaki Iwamoto
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Patent number: 5061595Abstract: A high-contrast room-light-handleable black-and-white silver halide photographic film especially adapted for use as a dry-dot-etchable contact film in the graphic arts is comprised of a support having in order on one side thereof (1) a radiation-sensitive layer comprising silver halide grains, a hydrophilic colloid and a polymer latex, (2) an interlayer comprising a hydrophilic colloid and a polymer latex, and (3) an overcoat layer comprising a hydrophilic colloid, a matting agent and a light-scattering agent, wherein the interlayer has a refracive index in the range of from about 1.4 to about 1.7 and a thickness which is in the range of from about 0.5 to about 5 microns and is at least twice that of the overcoat layer. The combination of the light-scattering agent in the overcoat layer and the thick interlayer facilitates optical spreading of the image during contact exposure, and thereby enhances the performance of the contact film in use with multi-layer originals and in processes of dry dot etching.Type: GrantFiled: September 24, 1990Date of Patent: October 29, 1991Assignee: Eastman Kodak CompanyInventors: Anthony D. Gingello, David F. Jennings, Richard D. Lucitte, Hermano P. Rocha
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Patent number: 5059510Abstract: Provided is an information recording medium, e.g., an optical recording medium, and a method for recording information thereon. The information layer of the recording medium comprises an organo macrocyclic chromophore containing a central hetero atom or two central hydrogen atoms or isotopes of hydrogen, e.g., a naphthalocyanine having silicon as the hetero atom, which chromophore is substituted with at least one substituent conferring film forming properties to the chromophore, e.g., a monomer or oligomeric substituent comprised of acid, amide or ester units. The information layer thereby offers excellent thermomechanical properties and exhibits excellent absorption properties all in a single component material. By utilizing a single component material, the problem of dye/polymer phase separation frequently encountered in dye/polymer mixtures is also overcome.Type: GrantFiled: August 22, 1989Date of Patent: October 22, 1991Assignee: Hoechst Celanese Corp.Inventors: R. Sidney Jones, Jr., David E. Nikles, Malcolm E. Kenney
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Patent number: 5057407Abstract: A silver halide photographic material having provided on a support at least one kind of light-sensitive silver halide emulsion layer and contains polymer particles having a mean size of 0.2 to 10 microns as a matting agent in an outermost layer or in a layer neighboring the outermost layer, wherein the polymer particles containing at least one kind of reactive functional group capable of forming a covalent bond by reacting with an organic hardener or a binder to prevent the falling-off and elution of the particles from the material during rapid photographic processing.Type: GrantFiled: June 26, 1990Date of Patent: October 15, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okamura, Yasuo Mukunoki
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Patent number: 5037871Abstract: Protective overcoat compositions and photographic elements containing same comprise:(a) a water-soluble hydroxylated polymer;(b) a hydrolyzed metal lower alkoxide or mixtures thereof and wherein when said hydrolyzed metal lower alkoxide is a tetrafunctional silicon lower alkoxide said hydrolyzed metal lower alkoxide comprises a mixture of said tetrafunctional silicon lower alkoxide with another hydrolyzed metal lower alkoxide that is not a tetrafunctional silicon lower alkoxide; and(c) a fluoroalkyl polyether surface active agent. The overcoat is transparent and flexible and provides protection against scratches and abrasion.Type: GrantFiled: May 23, 1990Date of Patent: August 6, 1991Assignee: Eastman Kodak CompanyInventor: Raymond T. Jones
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Patent number: 5037729Abstract: A multilayer photographic element comprising at least one light-sensitive emulsion layer comprising silver halide grains dispersed in a hydrophilic colloid and at least one auxiliary hydrophilic colloid layer, said plurality of layers of different composition being simultaneously coated onto a hydrophobic support from aqueous hydrophilic colloid compositions, presents improved coating quality if at least one auxiliary hydrophilic colloid layer comprises a) an anionic surface active agent, b) at least one of betaine, N-oxide or amide surface active agent the and c) at least one of dispersed droplets of a water-immiscible high-boiling organic solvent, a vinyl addition polymer latex or a highly deionized gelatin.All the layers can be simultaneously coated from said different hydrophilic colloid aqueous compositions while maintaining a distinct layer relationship and avoiding any coating defects.Type: GrantFiled: September 19, 1990Date of Patent: August 6, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventors: Fulvio Furlan, Domenico Marinelli
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Patent number: 5028512Abstract: Printing plates having a photosensitive layer coated on a support wherein said photosensitive layer contains a powdered solid adhered to the surface of said plate by means of powdering followed by the application of heat or solvent before exposure. Said powders are capable of being removed from said surface during the developing process.Type: GrantFiled: November 3, 1989Date of Patent: July 2, 1991Assignee: Konica Corporation and Mitsubishi Kasei CorporationInventors: Toshio Nagatani, Minoru Seino, Toru Okamoto, Chihiro Eguchi
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Patent number: 5026632Abstract: It has been shown by Photon Correlation Spectroscopy that when additional hardener is added to below saturation gel-grafted polymer particles, the gel layer shrinks due to hardening, as there is no free gel left in solution. In films, such case-hardened gelatin-grafted soft polymer particles can act as highly elastic stress absorbing fillers. This is because the dry case-hardened shell is expected to form a thin hard shell around the soft polymer particles. It is shown that gelatin-grafted soft polymer particles and case-hardened gelatin-grafted soft polymer particles, incorporated in the emulsion layers of pressure sensitive photographic products, produce coatings with highly reduced pressure sensitivity without any developability or delamination concerns. In this invention the case-hardened gelatin-grafted polymer particles are preferred over the simple gelatin-grafted material.Type: GrantFiled: March 22, 1990Date of Patent: June 25, 1991Assignee: Eastman Kodak CompanyInventors: Pranab Bagchi, William L. Gardner
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Patent number: 5013621Abstract: A one-part coating composition for the backside of photographic prints and photographic prints so coated are described. The white coating is reflective, flexible, and water resistant.Type: GrantFiled: April 23, 1990Date of Patent: May 7, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventor: John F. Kistner
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Patent number: 5008129Abstract: For an optical data storage system employing a data-modulated writing laser beam, optical media are described which include a highly reflective aluminum layer, a relatively transparent polymer spacer layer overlying the reflective layer and an optical absorber (recording) layer overlying the spacer layer,--plus an overcoat structure including a "soft pad" layer (e.g., fluoropolymer) on and/or under the absorber plus a "hard" overcoat layer (e.g., radiation-cured acrylic) laid over the "soft pad" as an outer protective overcoat.Type: GrantFiled: January 14, 1985Date of Patent: April 16, 1991Assignee: Unisys Corp.Inventors: Norman L. Boling, Thomas Mayer, James D. Rancourt
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Patent number: 4999266Abstract: The invention provides a photographic article having a protected image which comprisesa) a colored image disposed on a substrate; andb) a thin, transparent, colorless, thermoplastic adhesive composition directly on the surface of the image, wherein said adhesive is substantially non-tacky at room temperature, and comprises one or more thermoplastic polymers of copolymers capable of forming a flexible film, said adhesive being capable of being transferred directly to the image when the adhesive is first disposed on the release surface of a temporary support and said image and adhesive are laminated together under pressure at temperatures of between about 60.degree. C. and about 90.degree. C. and said temporary support is peeled away; andc) a non-self supporting antiblocking layer directly on said adhesive said antiblocking layer being transparent, colorless and comprises one or more organic polymers or copolymers, which coating does not cohesively block at about 50.degree. C. or less.Type: GrantFiled: December 6, 1989Date of Patent: March 12, 1991Assignee: Hoechst Celanese CorporationInventors: Stephan J. W. Platzer, Mehmet U. Yener, Stanley F. Wanat
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Patent number: 4999275Abstract: A silver halide photographic light-sensitive material is described, comprising a support, at least one light-sensitive silver halide emulsion layer on the support, and at least one light-insensitive top layer provided on the emulsion layer, wherein at least one of the emulsion layer and other constituent layers contains a compound represented by the general formula (I)R.sup.1 --NHNH--G--R.sup.2 (I)wherein R.sup.1 is a substituted or unsubstituted aryl group, R.sup.2 is a hydrogen atom, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryloxy group, and G is a carbonyl group, a sulfonyl group, a sulfoxy group, a phosphoryl group, or an N-substituted or unsubstituted imino group and wherein said at least one light-insensitive top layer is hardened so as to have a melting time at least 50 seconds longer than that of the emulsion layer.Type: GrantFiled: October 15, 1986Date of Patent: March 12, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuo Kasama, Nobuaki Inoue
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Patent number: 4994348Abstract: A light-sensitive recording material for the production of intaglio printing plates comprises a photopolymerizable and/or photocrosslinkable material which is soluble or dispersible in a developer liquid and on exposure to actinic light is rendered insoluble or no longer dispersible in this developer liquid and which, at least in a surface zone of the surface of the layer which forms the later surface of the printing plate, contains finely divided abrasive particles whose average particle size is within the range from 0.1 to 6 .mu.m, which have a hardness of >4.0 on the Mohs hardness scale, the surface of the layer which forms the later surface of the printing plate has a peak-to-valley height of <2 .mu.m, and the photocrosslinkable and/or photopolymerizable material contains a reaction product of a cycloaliphatic epoxy with acrylic acid or methacrylic acid.Type: GrantFiled: February 24, 1989Date of Patent: February 19, 1991Assignee: BASF AktiengesellschaftInventors: Eleonore Raabe, Erich Beck
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Patent number: 4988607Abstract: A high speed photopolymerization negative-acting printing plate containing a layer comprising a photo-sensitized polymerization initiator and polymerizable ethylenically unsaturated compound, exhibits higher speed and good shelf life when at least 20% by weight of the total initiator is situated in an oxygen barrier top coat. Addition of p-substituted-N-disubstituted-anilines to the polymerizable layer gives further improvement in stability.Type: GrantFiled: May 30, 1989Date of Patent: January 29, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventor: Mohammad Z. Ali
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Patent number: 4983505Abstract: An optical recording medium comprising at least one recording layer on a substrate and a protective layer overlying the recording layer, the protective layer comprising a UV cured resin composition containing a urethane acrylate, N-vinylpyrolidone, a trifunctional or higher functional acrylate, and a photoinitiator.Type: GrantFiled: July 18, 1989Date of Patent: January 8, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Manabu Higuchi, Masao Yabe, Hideki Matsubara, Tetsuji Jitsumatsu
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Patent number: 4980273Abstract: The matting agent particles of matted photographic imaging materials contain a finely divided solid as well as a dye that is only present at the image-forming points after exposure and development of the material. The starry night effect is thereby avoided. The dye can be formed during exposure and development from a precursor, e.g., from silver halide or from couplers for color photography or for diazo processes.Type: GrantFiled: July 26, 1989Date of Patent: December 25, 1990Assignee: E. I. DuPont de Nemours and CompanyInventor: Manfred Fautz
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Patent number: 4978607Abstract: A photographic recording material which comprises at least one gelatin-containing silver halide emulsion layer and at least one protective layer containing a gelatin derivative, the protective layer being further away from the layer support than each silver halide emulsion layer and 30 to 90% of the amino groups of the gelatin in the gelatin derivative being reacted with a monofunctional acid derivative, and which is hardened with an instant hardener can be produced at high speed and, hence, at high drying temperatures without any reticulation grain occurring during processing.Type: GrantFiled: September 1, 1988Date of Patent: December 18, 1990Assignee: AGFA-Gevaert AktiengessellschaftInventors: Edouard Roche, Wolfgang Himmelmann, Hans-Theo Buschmann, Heinz Quambusch
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Patent number: 4971893Abstract: Method of providing an image-bearing surface, e.g., a pre-press proof, with a protective covering, comprising laminating to said surface a thin, substantially transparent integral polymeric film, the improvement wherein the polymeric film consists essentially of a mixture of at least two slightly incompatible polymers, whereby the film exhibits a 20.degree. specular gloss that is at least 5% lower than the gloss of a film prepared from any one of said polymer constituents.Type: GrantFiled: February 14, 1990Date of Patent: November 20, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventor: Harvey W. Taylor, Jr.