Synthetic Resin Or Cellulose Derivative Containing Patents (Class 430/531)
-
Patent number: 5104722Abstract: The present invention provides a photographic support which comprises a base paper and polyolefin resin layers provided on both sides of the base paper by extrusion coating of molten polyolefin resins, wherein the polyolefin resin layer provided on the side of the base paper opposite to the side to be coated with photographic emulsion layer has multi-layer construction and a method for producing the photographic support. This photographic support is excellent in anticurl properties and adhesion between the base paper and the resin layer.Type: GrantFiled: February 22, 1990Date of Patent: April 14, 1992Assignee: Mitsubishi Paper Mills LimitedInventors: Osamu Kojima, Massashi Kubbota
-
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
-
Patent number: 5084344Abstract: A photographic support having a layer of a white pigment and an electron beam hardenable resin on a support can be improved in adhesive strength, surface appearance and other properties by forming an outermost layer containing an ultraviolet curable resin, or impregnating an electron beam hardenable resin into the support, or inserting an electron beam hardenable leveling agent into the white pigment-resin layer, or forming an outermost layer containing a fluorescent agent and an electron beam hardenable resin.Type: GrantFiled: February 23, 1989Date of Patent: January 28, 1992Assignee: Mitsubishi Paper Mills LimitedInventors: Junji Harada, Seigo Ebato, Takahisa Kato
-
Patent number: 5079136Abstract: A plastic film with an antistatic layer and a silver halide photographic light-sensitive material using the film as the support are disclosed. The antistatic layer comprises a water-soluble electric conductive polymer and particles of a hydrophobic polymer, and hardened with a hardening agent. The hydrophobic polymer has an N-methylol or its derivative group, an amino group, an epoxy group, an aziridine group, an active methylene group, a sulfinic acid group, an aldehyde group, a vinylsulfonyl group or a blocked isocyanate group. A silver halide photographic material using the film having the inventive antistatic layer is excellent in layer adhesion and sufficiently protected from static charge even after processing.Type: GrantFiled: March 16, 1990Date of Patent: January 7, 1992Assignee: Konica CorporationInventors: Noriki Tachibana, Yoichi Saito, Toshiaki Yamazaki
-
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
-
Patent number: 5075202Abstract: A method of processing a light-sensitive silver halide color photographic material which comprises subjecting to imagewise exposure a light-sensitive silver halide color photographic material having a light-sensitive silver halide emulsion layer on i) a substrate coated with a resin cured by irradiation with electron beams or ii) one side or both sides of a substrate of an opaque thermoplastic resin film comprising a synthetic polyester film coated on its one side or both sides with fine particles of white pigment and/or a synthetic polyester film containing said fine particles dispersed in the film and applied with molecular orientation, followed by color developing processing and, after processing by use of processing solution having fixing ability, stabilizing processing without substantially any water washing step. The concentration of silver complex ions in the final stabilizing tank is in the range of 2.times.10.sup.-5 to 2.times.10.sup.-1 mole/liter.Type: GrantFiled: September 10, 1990Date of Patent: December 24, 1991Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeharu Koboshi, Kazuhiro Kobayashi, Satoru Kuse
-
Patent number: 5075206Abstract: A photographic support consisting essentially of a substrate and a resin layer provided on the image forming side of the substrate, said resin layer comprising a specific titanium dioxide pigment and others. This photographic support is excellent in that it has a high brightness and a high apparent whiteness and stability of the apparent whiteness is good; printed image of high sharpness can be formed thereon: and occurrence of die lip stain at production is quite little and thus it has good surface property.Type: GrantFiled: March 27, 1990Date of Patent: December 24, 1991Assignee: Mitsubishi Paper Mills LimitedInventors: Touru Noda, Massashi Kubbota, Akira Uno
-
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
-
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
-
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
-
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
-
Patent number: 5057403Abstract: A miniaturized package of a photosensitive material, which comprises a silver halide photosensitive material comprising a transparent synthetic resin support having at least one photosensitive silver halide emulsion layer formed thereon and a sealed container containing the photosenstive material, the support having a water content of 0.3 to 1.5% by weight and the content volume of the sealed container being 0.08 x cm.sup.3 or less when the area of one surface of the photosensitive material is x cm.sup.2. By this miniaturized package, the size and weight of camera can be reduced. The photographic properties of the photosensitive material contained in the package are not easily deteriorated.Type: GrantFiled: January 5, 1990Date of Patent: October 15, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Yuuji Kume, Shinpei Ikenoue
-
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
-
Patent number: 5045394Abstract: A photographic support material is disclosed for light sensitive coatings in the form of a plastic coated paper or a plastic foil whose backside has a coating allowing writability. The back coating comprises a terpolymer latex of styrene-butadiene-methacrylate, a hard silicic acid, and an aluminium modified colloidal silicic acid sol. The coating may also include an aqueous solution of a salt of an organic polyacid. The quantities of the additives used result in optimal characteristics of printability, writability using various pens and lead pencils, minimal soiling in old developing baths, minimal coloring in developing solutions, good tape adhesion and, when required, good antistatic characteristics.Type: GrantFiled: October 21, 1988Date of Patent: September 3, 1991Assignee: Felix Schoeller jr. GmbH & Co. KGInventors: Eckehard Saverin, Hans-Udo Tyrakowski
-
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
-
Patent number: 5035974Abstract: A light-image forming material comprising a support having provided thereon a light-image forming layer comprising microcapsules containing an oxidative-developable leuco dye and a photo-oxidizing agent, and a reducing agent as essential ingredients, wherein the material also includes a covering layer or intermediate layer containing a film-forming high-molecular binder and/or an inorganic or organic pigment.Type: GrantFiled: June 15, 1989Date of Patent: July 30, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiso Saeki, Toshiaki Endo
-
Patent number: 5026633Abstract: Photothermographic dry silver emulsions containing a benzylidene lenco dye and a development accelerator provide a high density yellow image upon exposure to actinic radiation and thermal developing at a relatively low temperature and for a short period of time.Type: GrantFiled: July 27, 1989Date of Patent: June 25, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventor: David C. Weigel
-
Patent number: 5021309Abstract: In an electrophotographic imaging device, material for an exposed anti-curl layer has organic fillers dispersed therein. The fillers provide coefficient of surface contact friction reduction, increased wear resistance, and improved adhesion of the anti-curl layer, without adversely affecting the optical and mechanical properties of the imaging member.Type: GrantFiled: April 30, 1990Date of Patent: June 4, 1991Assignee: Xerox CorporationInventor: Robert C. U. Yu
-
Patent number: 5019494Abstract: A silver halide photographic material which comprises a support having thereon at least one hydrophilic colloid layer, wherein the hydrophilic colloid layer comprises (a) a binder comprising a dextran having a molecular weight of at least 100,000 and (b) an ionic polymer.Type: GrantFiled: February 27, 1989Date of Patent: May 28, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Ichizo Toya, Ryoichi Nemori
-
Patent number: 5019491Abstract: A silver halide photographic material composed of a support having thereon at least one light-sensitive silver halide emulsion layer, at least one layer of the material containing the combination of a lubricant and a water-soluble compound represented by formula (I):A-X-Y-B (I)wherein A represents an alkyl group, alkenyl group or aryl group which has from 8 to 25 carbon atoms; X represents --O--, ##STR1## --S--, ##STR2## wherein R represents an alkyl group containing from 1 to 10 carbon atoms or -Y-B; Y consists of at least --(CH.sub.2 CH.sub.2 O).sub.a -- and ##STR3## wherein a is an integer from 5 to 50, and b is an integer from 2 to 20; and B represents hydrogen, an alkyl group containing at most 8 carbon atoms, or a phenyl group. The material has superior developement and drying characteristics, particularly in avoidance of droplet marks.Type: GrantFiled: October 9, 1990Date of Patent: May 28, 1991Assignee: Fuji Photo Film Co., Ltd.Inventor: Kazuhiko Takeuchi
-
Patent number: 5017455Abstract: A process for recovering a support from a photographic film is disclosed. The photographic film comprises the support and an undercoating layer provided thereon. The support is made of cellulose triacetate film base. The undercoating layer contains gelatin and cellulose nitrate. According to the present invention, the process comprises the steps of: (I) treating the photographic film with an aqueous solution of a surfactant; and then (II) treating the photographic film with an aqueous solution of a protease to remove the undercoating layer from the support. The aqueous solution of the protease used at the step of (II) preferably further contains an anionic surfactant. It is also preferred that the process further contains the step of (III) treating the recovered support with an aqueous solution of hydrogen peroxide to bleach the support.Type: GrantFiled: April 11, 1990Date of Patent: May 21, 1991Assignees: Fuji Photo Film Co., Panac-Industries Inc.Inventors: Goichi Hayashi, Sajuro Fujimagari, Kensaku Nakamura, Ryuichi Ishida
-
Patent number: 5008178Abstract: A sheet or web material being a subbed or unsubbed hydrophobic resin support or paper support coated with at least one hydrophobic resin layer having at least on one side an outermost antistatic layer containing colloidal silica, characterized in that the antistatic layer is free from any cationic surfactant and consists of at least 70% of weight of colloidal silica having an average particle size smaller thatn 7 nm and a surface area of at least 500 m2 per gram, the colloidal silica being present at a coverage of at least 50 mg per m2.Type: GrantFiled: February 2, 1989Date of Patent: April 16, 1991Assignee: Agfa-Gevaert, N.V.Inventors: Etienne A. Van Thillo, Lucien J. Van Gossum
-
Patent number: 5004669Abstract: Disclosed is a light-sensitive silver halide photographic material comprising a transparent support and provided thereon a silver halide emulsion layer, wherein the support is subjected to corona discharge treatment on its surface opposite to the side on which the emulsion layer is provided, and is provided thereon with a subbing layer containing a latex polymer, a non-gelatin layer containing a conductive polymer, and a gelatin layer containing a conductive polymer and a backing dye, in this order. The light-sensitive silver halide photographic material obtained by this invention can be handled in a roomlight environment when used as a light-sensitive material particularly in the field of printing plate making or the like, has a superior antistatic ability and a high sensitivity, and yet can obtain a photographic image with a high contrast, and also can stably obtain a halftone with a high quality and less fog.Type: GrantFiled: October 27, 1989Date of Patent: April 2, 1991Assignee: Konica CorporationInventors: Taketoshi Yamada, Takeshi Habu, Yasuhiko Takamuki
-
Patent number: 4988612Abstract: The use of polymers and polymer blends having defined resistance changes during heating are particularly useful in resistively heated photothermographic elements.Type: GrantFiled: April 8, 1988Date of Patent: January 29, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gary E. LaBelle, David T. Ask
-
Patent number: 4987061Abstract: Color images with improved Dmin/Dmax-relationship can be obtained from color photographic recording materials comprising color providing compounds in association to silver halide emulsion layers and comprising an additional binder in said silver halide emulsion layers or in adjacent non-lightsensitive layers a polymer having recurring structural units of a polymerized monomer which contains at least one urethane and/or urea group.Type: GrantFiled: October 24, 1989Date of Patent: January 22, 1991Assignee: Reel/Frame Agfa-Gevaert AktiengesellschaftInventors: Gunter Helling, Manfred Peters
-
Patent number: 4983506Abstract: A silver halide photographic material is described, containing at least one polymer, which functions as both a color fogging preventing agent and a color mixing preventing agent, obtained by polycondensation of at least one compound represented by formula (I) and at least one compound represented by formula (II): ##STR1## wherein G represents hydroxyl group, a group capable of forming hydroxyl group by alkali hydrolysis, a carbonamido group or a sulfonamido group;n represents an integer of 1 or more, provided that when n is 2 or more, plural G's may be same or different;R.sup.1 and R.sup.2 each independently represents hydrogen atom or a substituent; andR.sup.3 and R.sup.4 each independently represents hydrogen atom, an alkyl group, an aryl group, an aralkyl group, a heterocyclic group, an acyl group, a carboxyl group, or a formyl group,in the presence of an acid or alkali catalyst.Type: GrantFiled: October 14, 1988Date of Patent: January 8, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigetoshi Ono, Hirokazu Kondo, Yoshisada Nakamura
-
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
-
Patent number: 4977065Abstract: There is described a waterproof support material for light-sensitive materials with an anti-curl layer applied in two successive coatings on the reverse side.With the first coating, gelatin is dried out from the sol form and hardened in such a manner that, after the drying of the first coating, the second coating, which contains additional hardening agent, can be applied immediately without difficulty. Chromium(III)-salts are contained in both coatings as hardening agents.Through the selected combination of 2 process steps, anti-curl layers of extremely low water absorption capacity are obtained.Type: GrantFiled: June 30, 1988Date of Patent: December 11, 1990Assignee: Felix Schoeller Jr. GmbH & Co. KGInventors: Frits B. Ruben, F. B. Ruben
-
Patent number: 4968554Abstract: A support sheet for photographic paper having an enhanced resistance to curling, especially twist-curling, comprises a substrate paper sheet composed of a half stratum portion thereof at the face side of a surface on which a photographic emulsion layer will be formed and the other half stratum portion thereof at the back side of the opposite surface, and two polyolefin resin coating layers on the two surfaces of the substrate paper sheet, the substrate paper sheet having a resiliency satisfying the relationships (I) and (II):1.5.ltoreq.E.sub.fl /E.sub.bt .ltoreq.2.25 (I)=and ##EQU1## wherein E.sub.fl =a modulus of elasticity of the face side half stratum portion in the longitudinal direction of the substrate, E.sub.bt =a modulus of elasticity of the back side half stratum portion in the transverse direction of the substrate, E.sub.ft =a modulus of elasticity of the face side half stratum portion in the transverse direction of the substrate, and E.sub.Type: GrantFiled: October 19, 1988Date of Patent: November 6, 1990Assignee: Oji Paper Co., Ltd.Inventors: Tsunehisa Shigetani, Masahiro Yamana, Takao Ayukawa, Masahiro Kamiya, Tetsu Uesaka
-
Patent number: 4948654Abstract: A sheet material for covering substrates comprising (a) a carrier layer comprising a polymer selected from polyesterethers, copolyesters and blends thereof, and (b) a tie layer bonded thereto, said tie layer being a low molecular weight polymer containing ethylene repeat units. The sheet material is provided with a decorative and/or protective coating, and preferably, a top coat.Type: GrantFiled: February 27, 1989Date of Patent: August 14, 1990Assignee: Eastman Kodak CompanyInventors: Richard V. Brooks, Michael C. Carmody
-
Patent number: 4942104Abstract: An electrophotographic photoconductor is disclosed, which comprises a flexible film-type substrate, an electroconductive layer formed on a front surface of the substrate, a photoconductive layer formed on the electroconductive layer, and a curl prevention layer formed on the back side of the substrate opposite to the back side thereof, in which the curl prevention layer comprises one resin component selected from the group consisting of a polysulfone resin and a polyarylate resin.Type: GrantFiled: September 16, 1988Date of Patent: July 17, 1990Assignee: Ricoh Company, Ltd.Inventors: Ryouichi Kitajima, Satoshi Otomura
-
Patent number: 4939063Abstract: A light-sensitive material comprising a light-sensitive layer containing silver halide, a reducing agent and an ethylenic unsaturated polymerizable compound provided on a paper support. The paper support comprises a coating layer containing a hydrocarbon resin provided on a base paper sheet, and the paper support has a low water absorptiveness of not more than 1 g/m.sup.2 on the surface of the coating layer on which the light-sensitive layer is provided. The water absorptiveness being a value measured according to the Cobb test method.Type: GrantFiled: June 17, 1988Date of Patent: July 3, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigehisa Tamagawa, Masayuki Kuroishi
-
Patent number: 4935336Abstract: The invention is directed to an optical recording member including a thin film photosensitive layer provided on a base. The thin film photosensitive layer may vary between a low optical density state and a high optical density state when optical energy is applied thereto. This thin film photosensitive layer contains a first element which may be a metal or semimetal, a second element which is at least one selected from Te, Ge, Sn, Al, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Mo, Rh, Pd, Ag, Cd, In, Ta, W, Pt, Au, Tl, Pb, Si, Sb, Bi, and an oxygen element. Part of the oyxgen element is bonded with the first element to form its oxide. The ratio x of the total number of atoms of the oxygen element to that of the first element, when the maximum valence of the first element in a stable oxide state is n, is according to the relation of 0<x>n/2. At least part of the second element exists in a non-oxide state. This thin film photosensitive layer is formed by a vacuum deposition or sputtering method.Type: GrantFiled: June 29, 1988Date of Patent: June 19, 1990Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Noboru Yamada, Kenichi Nishiuchi, Mutsuo Takenaga
-
Patent number: 4923790Abstract: A silver halide photographic material composed of a support having thereon at least one light-sensitive silver halide emulsion layer, wherein the material contains the combination of (i) at least one compound represented by formula (I) and (ii) and at least one compound represented by formulae (II) and/or (III): ##STR1## wherein R.sub.1 represents hydrogen, an alkyl group, an aryl group or an aralkyl group; X represents a halogen atom, a nitro group, a hydroxyl group, a cyano group, a lower alkyl group, a lower alkoxy group, --COR.sub.2, ##STR2## or --SO.sub.3 M; R.sub.2 represents hydrogen, --OM, a lower alkyl group, an aryl group, an aralkyl group, a lower alkoxy group, an aryloxy group, an aralkyloxy group or ##STR3## R.sub.3 and R.sub.4 each represents hydrogen, a lower alkyl group, an aryl group, an aralkyl group, --COR.sub.7 or --SO.sub.2 R.sub.7 ; R.sub.5 and R.sub.6 each represents hydrogen, a lower alkyl group, an aryl group or an aralkyl group; R.sub.Type: GrantFiled: September 22, 1988Date of Patent: May 8, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Hirohiko Kato, Keiji Mihayashi, Kazuhiro Aikawa
-
Patent number: 4917993Abstract: A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and at least one other hydrophilic colloid layer, wherein at least one compound represented by formula (I) is contained in at least one layer of the silver halide photographic material and wherein an organic material selected from the group consisting of a natural or synthetic water-soluble polymer is contained in at least one of the light-sensitive silver halide emulsion layer and the other hydrophilic colloid layer such that at least 10% by weight of the organic material originally present in the layers of the silver halide photographic material is washed out from the layer during development processing:A--X--Y--B (I)wherein A represents an alkyl group, an alkenyl group or an aryl group, which has from 8 to 25 carbon atoms; X represents ##STR1## wherein R represents an alkyl group having from 1 to 10 carbon atoms or --Y--B; Y represents a group consisting of at least one of eacType: GrantFiled: December 19, 1988Date of Patent: April 17, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuo Mukunoki, Masakazu Yoneyama, Sumito Yamada
-
Patent number: 4916049Abstract: A silver halide photographic material is disclosed, comprising a support having at least two hydrophilic colloid layers on one side of a support, at least one of said hydrophilic colloid layers containing dextran having an average molecular weight of at least 100,000, wherein at least one hydrophilic colloid layer containing substantially no dextran and having a dry thickness of at least 1.0 .mu.m exists between the hydrophilic colloid layer containing the dextran disposing nearest to the support and the support.Type: GrantFiled: December 12, 1988Date of Patent: April 10, 1990Assignee: Fuji Photo Film Co., Ltd.Inventor: Ichizo Toya
-
Patent number: 4916011Abstract: An element, e.g., photographic element, comprising a polymeric shaped article having available carboxyl groups on the surface thereof and which is coated with at least one permanent antistatic layer consisting essentially of the reaction produce of(1) water-soluble, electrically conductive polymer having functionally attached carboxyl groups integral to the polymer, and(2) polyfunctional substituted aziridine, e.g., with alkyl of 1 to 6 carbon atoms, the coating weight of the antistatic layer, based on weight of (1), being less than 4.5 mg/dm.sup.2, preferably less than 3.8 mg/dm.Elements using such layers are free of haze and show reduced propensity to produce static. The layers are useful in silver halide, photopolymer, diazo, and vesicular image-forming elements, etc.Type: GrantFiled: July 20, 1989Date of Patent: April 10, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventor: Conrad E. Miller
-
Patent number: 4916048Abstract: The invention is directed to an optical recording member including a thin film photosensitive layer provided on a base. The thin film photosensitive layer may vary between a low optical density state and a high optical density state when optical energy is applied thereto. This thin film photosensitive layer contains a first element which may be a metal or semimetal, a second element which is at least one selected from Te, Ge, Sn, Al, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Mo, Rh, Pd, Ag, Cd, In, Ta, W, Pt, Au, Tl, Pb, Si, Sb, Bi, and an oxygen element. Part of the oxygen element is bonded with the first element to form its oxide. The ratio x of the total number of atoms of the oxygen element to that of the first element, when the maximum valence of the first element in a stable oxide state is n, is according to the relation of 0<x<n/2. At least part of the second element exists in a non-oxide state. This thin film photosensitive layer is formed by a vacuum deposition or sputtering method.Type: GrantFiled: November 7, 1986Date of Patent: April 10, 1990Inventors: Noboru Yamada, Kenichi Nishiuchi, Mutsuo Takenaga
-
Patent number: 4914011Abstract: A process for forming an anti-halation layer on the surface of a polyester photographic film support comprises the steps of (1) subjecting the surface to an activation treatment such as, for example, corona discharge treatment; (2) coating the activated surface with a composition comprising an anti-halation agent, such as carbon black, and an alkali-soluble polymeric binder, such as cellulose acetate hexahydrophthlate, dispersed in a liquid organic medium; and (3) drying the coating to thereby form an anti-halation layer which is strongly adherent to the polyester film suport yet is readily removable by an alkaline photographic processing solution.Type: GrantFiled: November 21, 1988Date of Patent: April 3, 1990Assignee: Eastman Kodak CompanyInventor: William R. Grous
-
Patent number: 4914018Abstract: An improved antistatic base comprises a polymeric support film having coated thereon in sequence a first antistatic layer comprising a quaternary polyelectrolyte compound and a polymeric hydrophobic binder and a second protective layer comprising a polymeric hydrophobic binder, wherein said quaternary polyelectrolyte compound is a homopolymer or a copolymer of a diallyldialkylammonium salt compound.The antistatic base is particularly useful as a support for light-sensitive silver halide photographic elements.Type: GrantFiled: December 1, 1988Date of Patent: April 3, 1990Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mauro Besio, Alberto Valsecchi
-
Patent number: 4912023Abstract: The present invention provides a photographic light-sensitive material having at least one silver halide light-sensitive layer and at least one light-insensitive layer on a support, characterized in that the light-sensitive layer and/or the light-insensitive layer contain(s) a water-soluble or water-dispersible block copolymer comprising one component of a polyvinyl alcohol polymer and the other component of an ionic group-containing polymer. The support is preferably a reflective support, and the light-sensitive layer and/or the light-insensitive layer may contain a fluorescent whitening agent. The present photographic material is processed preferably in the presence of a fluorescent whitening agent. The present material forms a print with excellent background whiteness and excellent surface gloss. The appearance is not deteriorated after preservation under high moisture conditions for a long period of time.Type: GrantFiled: May 2, 1988Date of Patent: March 27, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Junichi Matsuyama, Keiichi Adachi, Yukio Aogaki
-
Patent number: 4906556Abstract: An optical recording medium comprising a substrate and a recording layer made of metal and/or semi-metal and on which data can be recorded with a laser beam, wherein a plasma polymerization layer is formed on at least an upper surface of said recording layer.Type: GrantFiled: July 10, 1989Date of Patent: March 6, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuo Nishikawa, Yonosuke Takahashi
-
Patent number: 4900654Abstract: Disclosed are photographic elements having reflective or diffusely transmissive supports shaped from a continuous polyester phase having dispersed therein microbeads of cellulose acetate which are at least partially bordered by void space, the microbeads of cellulose acetate being poresent in an amount of about 10-30% by weight based on the weight of said polyester, said void space occupying about 2-50% by volume of said shaped article. Such articles have excellent physical properties.Type: GrantFiled: September 9, 1988Date of Patent: February 13, 1990Assignee: Eastman Kodak CompanyInventors: Mark A. Pollock, William J. Stowell, James J. Krutak
-
Patent number: 4898808Abstract: An antistatic silver halide photographic light-sensitive material having a support, provided thereon, at least one light-sensitive layer and at least one non-light-sensitive layer is disclosed. Said at least one non-light-sensitive layer comprises a polymer compound consisting essentially of a repeated structural unit represented by Formula [I], and a formamide compound represented by Formula [II]; ##STR1## wherein Z, and Z.sub.2 represent the group of the atoms necessary to form a six-membered ring with--N.sup..sym. --; R represents a divalent group; R.sub.1 and R.sub.2 represent independently one selected from the group consisting of an alkyl group and an aryl group; R.sub.3 represents a hydrocarbon group; R.sub.5 and R.sub.6 represent independently a hydrogen atom or an alkyl group; X.sub.1.sup..crclbar. and X.sub.2.sup..crclbar. represent an anion; a and l represent an integer of 0 and 1.Type: GrantFiled: January 17, 1989Date of Patent: February 6, 1990Assignee: Konica CorporationInventors: Noriki Tachibana, Masato Nishizeki, Nobuaki Kagawa
-
Patent number: 4898810Abstract: This invention relates to layers for photographic materials, which comprises a polysaccharide which is formed extracellularly by bacterial fermentation of glucose, maltose, sucrose or xylose, if appropriate in the presence of yeast, yeast hydrolysate or casein-hydrolysate, and with mono-, di- and/or tri-valent metal ions, forms gels having a solidification temperature between 24.degree. and 25.degree. C. Gellan gum has proved to be a particularly advantageous polysaccharide for use in the layers according to the invention.Type: GrantFiled: May 1, 1988Date of Patent: February 6, 1990Assignee: Ciba-Geigy AGInventors: Ute Eggert, Andreas Engel, Ekkehard Kramp
-
Patent number: 4898809Abstract: A silver halide photographic light-sensitive material is disclosed, which has high sensitivity and can be handled under bright safelight. The photographic material comprises a support bearing thereon photographic component layers including at least one silver halide emulsion layer containing a silver halide emulsion sensitized so as to have a maximum spectral sensitivity on the side of a wavelength shorter than at least 600 nm and at least one non-light-sensitive hydrophilic colloid layer arranged to the side of the silver halide emulsion layer opposite to the support. And at least one of the hydrophilic colloid layers contains a water-soluble dye having a maximum light-absorption within the wavelength region of not less than 700 nm.Type: GrantFiled: August 3, 1988Date of Patent: February 6, 1990Assignee: Konica CorporationInventor: Takeshi Sampei
-
Patent number: 4895791Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, silver halide photographic material containing in the at least one silver halide emulsion layer or at least one other constituting layer a latex having repeating units represented by the following general formula (I): ##STR1## wherein A represents a group having a dissociating group which has a pKa of about 4 or lower, said pKa being measured at 25.degree. C. in water; R.sub.1, R.sub.2, and R.sub.Type: GrantFiled: August 21, 1987Date of Patent: January 23, 1990Assignee: Fuji Photo Film Co., Ltd.Inventor: Yasuo Mukunoki
-
Patent number: 4891308Abstract: As part of a photographic film, a backing antistatic layer is coated at a pH of 3 to 12 with an auxiliary layer consisting essentially of at least one crosslinkable conductive polymer and a crosslinking agent for the conductive polymer dispersed in a binder, e.g., gelatin, to conduct the antistatic properties from the antistatic underlayer to the surface of the backing layer. The crosslinkable conductive polymer and crosslinking agent can be present in separate layers on the backing layer. The film is useful in the areas of graphic arts, printing, medical and information systems.Type: GrantFiled: April 14, 1989Date of Patent: January 2, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventor: Thomas B. Cho
-
Patent number: 4891307Abstract: A silver halide photographic material is disclosed. The material is comprised of a support having thereon at least one silver halide emulsion layer, wherein at least one of the silver halide emulsion layer and another constituent layer contains a fluorine-containing nonionic surface active agent, a fluorine-containing ionic surface active agent and a fluorine-free nonionic surface active agent.Type: GrantFiled: June 13, 1989Date of Patent: January 2, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuo Mukunoki, Yukio Maekawa, Shuzo Suga
-
Patent number: 4886739Abstract: In a thermally processable imaging element and process an imaging layer comprising a photothermographic or thermographic imaging composition and 2.5 to 20% by weight of the layer of at least one hydrolyzed polyalkoxysilane (hydrolyzed Si(OR.sub.1).sub.4 or hydrolyzed R.sub.2 --Si(OR.sub.3).sub.3) enables increased maximum image density. Such a hydrolyzed polyalkoxysilane in a hydrophobic imaging layer of such an element enables increased adhesion of the imaging layer to a contiguous hydrophobic hydrophilio layer, particularly a hydrophilic overcoat layer.Type: GrantFiled: August 10, 1988Date of Patent: December 12, 1989Assignee: Eastman Kodak CompanyInventor: Wojciech M. Przezdziecki