Element Patents (Class 430/259)
-
Patent number: 5468596Abstract: A photosensitive recording element comprises(A) a dimensionally stable substrate,(B) a photopolymerizable relief-forming recording layer and, if required, an adhesion-promoting layer arranged between (A) and (B), a release layer (C) applied to that side of the recording layer (B) which faces away from the substrate (A), and, if required, a cover sheet (D) applied thereon, the photopolymerizable relief-forming recording layer (B) containingb.sub.1) at least one polymeric binder,b.sub.2) at least one photopolymerizable olefinically unsaturated monomer which is compatible with b.sub.1),b.sub.3) at least one photopolymerization initiator andb.sub.4) at least one aryl alkyl ketone,and is suitable for the production of relief printing plates.Type: GrantFiled: January 13, 1995Date of Patent: November 21, 1995Assignee: BASF Lacke + Farben AGInventors: Thomas Loerzer, Thomas Telser, Thomas Zwez, Bernhard Albert
-
Patent number: 5441846Abstract: A system for the preparation of a light-sensitive material comprising a substrate, a light-sensitive layer and a base film which comprises a roller for providing a continuous light-sensitive sheet comprising the base film, the light-sensitive layer and a protective film; means for cutting the light-sensitive layer and protective layer in the traverse direction; fixing means for temporarily fixing the sheet; a roller for providing an adhesive tape for removing the protective film; the adhesive tape-collecting roller; a bar for pressing the adhesive tape by its tip to the front end of the light-sensitive sheet and to press the front end against the bottom of the fixing means and peeling the protective film from the sheet; a dancer roll; light-sensitive sheet cutting means; substrate supplying means; and heat rollers for laminating the base film and light-sensitive layer on the. substrate.Type: GrantFiled: January 12, 1995Date of Patent: August 15, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroshi Nagate, Kenichi Miyata, Masahiko Tsuda
-
Patent number: 5437963Abstract: The present invention provides a heat mode recording material comprising on the same side of a non-conductive support a conductive recording layer and an elastomeric image forming layer being non-conductive characterised in that a peelable polymeric film is provided as an outermost layer on the side of said support containing said elastomeric image forming layer.Type: GrantFiled: September 8, 1994Date of Patent: August 1, 1995Assignee: Agfa-Gevaert, N.V.Inventors: Yves Verburgh, Luc Leenders
-
Patent number: 5437960Abstract: A process for laminating a photosensitive-layer which includes providing (A) a base having a laminating region and a non-laminating region, and (B) a support having thereon, in order, a photosensitive layer and a protective film, where part of the protective film corresponds to the laminating region and part of the protective film corresponds to the non-laminating region, removing the part of the protective film which corresponds to the laminating region from the photosensitive layer such that the photosensitive layer can be laminated to the base in the laminating region, feeding the base and the support having thereon the photosensitive layer from which protective film has been removed to a nip between a pair of heated pressure rollers, passing the base and photosensitive-layer-covered support forward through the rollers while the base and photosensitive-layer-covered support are being nipped and hot-pressed by the rollers, with the photosensitive layer being in contact with the laminating region of the baseType: GrantFiled: August 5, 1994Date of Patent: August 1, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroshi Nagate, Hiroya Endo, Ken-ichi Miyata
-
Patent number: 5429907Abstract: The present invention provides an imaging element comprising a support, a porous layer, a photosensitive layer containing a photopolymerizable composition and optionally a stripping layer characterized in that there is provided a barrier layer between said photosensitive layer and said porous layer said barrier layer being impermeable for the photopolymerizable composition at ambient temperature and capable of increasing its permeability with increasing temperature.Type: GrantFiled: March 30, 1994Date of Patent: July 4, 1995Assignee: AGFA-Gevaert, N.V.Inventors: Herman Uytterhoeven, Luc Bastiaens
-
Patent number: 5426014Abstract: Disclosed is a laminar thermal imaging medium, actuatable in response to intense image-forming radiation for production of a pair of images upon exposure of the medium and separation of the respective sheets, the medium including a polymeric hardenable adhesive layer which in its unhardened condition reduces the tendency for the laminar thermal imaging medium to delaminate on application of physical stresses to the medium, and which is hardenable to a durable base for one of said images. Also disclosed is a method of preparing a laminar imaging medium as aforedescribed wherein said medium after lamination of component elements thereof is cut into individual units and, thereafter, the hardenable adhesive layer of such units is hardened to a durable base for an image carried thereon.Type: GrantFiled: May 27, 1994Date of Patent: June 20, 1995Assignee: Polaroid CorporationInventors: Neal F. Kelly, Eugene L. Langlais
-
Patent number: 5415969Abstract: An image-receiving element for use in photographic diffusion transfer film units of the type Wherein the image-receiving element, which includes an image-receiving layer, is designed to be removed, or "peeled-apart", from a photosensitive element after exposure and development have been carried out. The image-receiving element includes an overcoat layer which overlies the image-receiving layer for reducing the time period for which the image-receiving element remains tacky after the element has been separated from the photosensitive element and for improving the handling and/or storage of the resulting photograph under high humidity conditions. The overcoat layer comprises colloidal silica particles and binder material.Type: GrantFiled: October 6, 1993Date of Patent: May 16, 1995Assignee: Polaroid CorporationInventor: Kenneth C. Waterman
-
Patent number: 5409800Abstract: A photosensitive transfer material comprises a temporary substrate having provided thereon an alkali-soluble thermoplastic resin layer, an intermediate layer, and a photosensitive resin layer in this order, the interlaminar adhesion in the transfer material being the smallest at the interface between the thermoplastic resin layer and the temporary substrate. The photosensitive resin layer can be transferred to a permanent substrate without involving failure due to fine dust, air bubbles or unevenness of the permanent substrate. An image can be formed with the transfer material by adhering the transfer material to a permanent substrate at least under heat and, after stripping the temporary substrate, imagewise exposing the photosensitive resin layer to light, and processing the transferred layers to develop the photosensitive resin layer.Type: GrantFiled: March 25, 1994Date of Patent: April 25, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Morimasa Sato, Masayuki Iwasaki, Fumiaki Shinozaki, Koji Inoue
-
Patent number: 5393640Abstract: A photosensitive material either comprises a support, a peel layer, a barrier layer and a coloring material-containing photosensitive layer or a laminate of a coloring material layer and a photosensitive layer, superposed in order, or comprises a support having a releasing surface, an intermediate layer instead of both the peel layer and the barrier layer as mentioned above, a coloring material-containing photosensitive layer or a laminate of a coloring material layer and a photosensitive layer, superposed in order. The barrier layer or the intermediate layer comprises a polymer having a glass transition temperature not higher than 70.degree. C.Type: GrantFiled: May 26, 1994Date of Patent: February 28, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Yuichi Wakata, Chiyomi Niitsu
-
Patent number: 5387491Abstract: A photosensitive transfer sheet layered a releasable colored photosensitive layer comprising modified poly(vinyl alcohol) of either of following general formulae and adhesive and a heat-seal layer provided in turn on a supporter is disclosed, ##STR1## wherein R.sub.1 and R.sub.2 denote hydrogen atoms or alkyl groups independently one another, Y.sup.- denotes a conjugated chlorinic ion of acid, m denotes an integer of 1 to 6, and n denotes 0 or 1), thereby providing a multicolor image-forming material for obtaining high-precision prepress color proof being excellent in the preservability, possible to handle in a light room, water-developable and excellent in the registering accuracy as well.Type: GrantFiled: March 21, 1994Date of Patent: February 7, 1995Assignee: Nippon Paper Industries, Co., Ltd.Inventors: Toshihiko Takada, Norio Yabe, Masahide Takano
-
Patent number: 5376501Abstract: Processes are disclosed for incorporating a water-insoluble substance in a diffusion resistant form into a hydrophilic colloidal layer of an element. In a first process A the water-insoluble substance is present during the polycondensation of diol(s) or polyol(s) and carboxylic acids, whereby at least 6 mole % of the reagents bear a water-solubilizing group, preferably a sulpho group in the salt form; the obtained mixture of polyester and water-insoluble substance is then dispersed in an aqueous medium. In an alternative process B the polyester is first prepared and then mixed homogeneously with the hydrophobe substance by melting in a reactor or extruder; the mixture is then similarly dispersed. The obtained latex is then incorporated in a hydrophilic colloidal layer which is coated on a support.The obtained element can serve as base for a reprographic image, e.g. a color proof image, or can form part of a complete photographic material.Type: GrantFiled: April 14, 1994Date of Patent: December 27, 1994Assignee: Agfa-Gevaert, N.V.Inventors: August Marien, Raf Voets, Rafael Samijn, Marc Stevens
-
Patent number: 5374184Abstract: A photopolymerizable material having(A) a flexible, transparent film support;(B) a colored, polymerizable layer containing an organic binder, a free-radical-polymerizable compound, containing at least one terminal ethylenically unsaturated group, and a dye or colored pigment;(C) an adhesion layer containing a thermoplastic polymer and having a T.sub.g of from 25.degree. to 100.degree. C.; and(D) an uncolored photopolymerizable layer which contains a polymeric organic binder, a free-radical-polymerizable compound containing at least one terminal ethylenically unsaturated group and a photopolymerization initiator between the film support (A) and the colored polymerizable layer (B),where the cohesion of layers (B), (C) and (D) and the adhesion of these layers to one another and to the film support (A) provides the relationship wherein the adhesion (a.sub.2) of the photopolymerizable layer (D) to the colored layer (B) in the unexposed state is lower than: (i) the adhesion (a.sub.Type: GrantFiled: April 4, 1994Date of Patent: December 20, 1994Assignee: Hoeschst AktiengesellschaftInventors: Stephan J. W. Platzer, Gerhard Buhr, Manfred Michel, Andrea Buchmann
-
Patent number: 5366844Abstract: The present invention provides a heat mode recording material comprising on the same side of a non-conductive support a conductive recording layer and an elastomeric image forming layer being non-conductive characterised in that a peelable polymeric film is provided as an outermost layer on the side of said support containing said elastomeric image forming layer.Type: GrantFiled: September 29, 1993Date of Patent: November 22, 1994Assignee: AGFA-Gevaert, N.V.Inventors: Yves Verburgh, Luc Leenders
-
Patent number: 5362602Abstract: Method for making lithographic aluminum offset printing plates according to the DTR-process by photo-exposing a photosensitive monosheet layer assemblage comprising a hydrophilic aluminum foil, an intermediate layer comprising hydrophobic polymer beads prepared by polymerization of ethylenically unsaturated monomer(s) and having an average diameter not lower than 0.2 .mu.m, and a silver halide emulsion layer, applying an aqueous alkaline solution to the photo-exposed silver halide emulsion layer in the presence of a developing agent and a silver halide solvent to form a silver image and to allow unreduced silver halide or complexes formed thereof to diffuse image-wise from the developed silver halide emulsion layer to said aluminum foil to produce thereon a silver image, and separating said emulsion layer and said intermediate layer from the imaged aluminum foil. The invention also relates to the photosensitive monosheet layer assemblage used for making such printing plates.Type: GrantFiled: November 22, 1993Date of Patent: November 8, 1994Assignee: Agfa-Gevaert, N.V.Inventors: Paul J. Coppens, Joan T. Vermeersch, Luc H. Leenders, Ludovicus H. Vervloet, Eric M. Hoes, Eddie R. Daems
-
Patent number: 5352562Abstract: Disclosed is an image forming process employing a light-sensitive image forming material. The image forming material comprises a support, a light-heat conversion layer and an image forming layer, superposed in order. The process comprises the steps of imagewise exposing the image forming material to light so as to increase a bonding strength between the light-heat conversion layer and the image forming layer in the exposed area, pressing a receiving sheet on the light-heat conversion layer, and removing the receiving sheet from the image forming material to form a negative image on the receiving sheet in the unexposed area and to leave a positive image on the light-heat conversion layer in the exposed area.Type: GrantFiled: March 26, 1992Date of Patent: October 4, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Yonosuke Takahashi, Hideyuki Nakamura, Fumiaki Shinozaki
-
Patent number: 5346800Abstract: An image-receiving element for use in photographic diffusion transfer film units of the type wherein the image-receiving element, which includes an image-receiving layer, is designed to be removed, or "peeled-apart", from a photosensitive element after exposure and development have been carried out. The image-receiving element includes a strip-coat layer comprising a hydrophilic colloid, such as gum arabic, and an aluminum salt which overlies the image-receiving layer and significantly reduces striations and/or haze and facilitates the separation of the image-receiving element from the remainder of the film unit subsequent to diffusion transfer photography.Type: GrantFiled: October 6, 1993Date of Patent: September 13, 1994Assignee: Polaroid CorporationInventors: James A. Foley, Nicholas S. Hadzekyriakides, James J. Reardon
-
Patent number: 5342731Abstract: Disclosed is a laminar thermal imaging medium, actuatable in response to intense image-forming radiation for production of a pair of images upon exposure of the medium and separation of the respective sheets, the medium including a polymeric hardenable adhesive layer which in its unhardened condition reduces the tendency for the laminar thermal imaging medium to delaminate on application of physical stresses to the medium, and which is hardenable to a durable base for one of said images. Also disclosed is a method of preparing a laminar imaging medium as aforedescribed wherein said medium after lamination of component elements thereof is cut into individual units and, thereafter, the hardenable adhesive layer of such units is hardened to a durable base for an image carried thereon.Type: GrantFiled: November 21, 1990Date of Patent: August 30, 1994Assignee: Polaroid CorporationInventors: Neal F. Kelly, Eugene L. Langlais
-
Patent number: 5340693Abstract: The present invention provides a heat recording material comprising on a support in the order given a porous layer of an image forming substance, a substance capable of converting radiation into heat, a thermoplastic layer containing a photocurable composition and a stripping layer. The present invention further provides a method for obtaining an image with such an heat recording material. Images of high quality and good wear and scratch resistance are obtained.Type: GrantFiled: February 18, 1993Date of Patent: August 23, 1994Assignee: Agfa-Gevaert, N.V.Inventors: Herman Uytterhoeven, Luc Bastiaens, Rudolf Van den Bergh, Luc Leenders
-
Patent number: 5328798Abstract: A laminar thermal imaging medium, and a method of preparing same, are disclosed and include a photohardenable adhesive layer containing a photopolymerizable ethythenically unsaturated monomer, and a barrier layer for providing resistance to the diffusion of the polymerizable monomer therethrough to other layers of the thermal imaging medium. The barrier layer increases substantially the time period before which photohardening of the adhesive layer need be performed, during which time cutting and other manufacturing operations can be performed. The elastic and non-brittle character of the barrier layer provides improved durability of images prepared from the thermal imaging medium.Type: GrantFiled: May 5, 1993Date of Patent: July 12, 1994Assignee: Polaroid CorporationInventors: Kenneth J. McCarthy, Robert J. Pusateri
-
Patent number: 5308739Abstract: The present invention provides an imaging element comprising a support, a porous layer, a photosensitive layer containing a photopolymerizable composition and optionally a stripping layer characterized in that there is provided a barrier layer between said photosensitive layer and said porous layer said barrier layer being impermeable for the photopolymerizable composition at ambient temperature and capable of increasing its permeability with increasing temperature.Type: GrantFiled: February 8, 1993Date of Patent: May 3, 1994Assignee: Agfa-Gevaert, N.V.Inventors: Herman Uytterhoeven, Luc Bastiaens
-
Patent number: 5306597Abstract: A novel dye fixing element is provided comprising a dye fixing layer on which a diffusive dye produced or released by developing a light-sensitive element containing at least a light-sensitive silver halide, a hydrophilic binder and a dye providing compound which produces or releases a diffusive dye in correspondence to or counter correspondence to the exposure in the presence of a base and/or base precursor after or simultaneously with imagewise exposure is transferred and fixed, wherein the outermost layer on the dye fixing layer side or on the opposite side, i.e., back layer side contains at least one compound represented by the following general formula (I) and exhibits a contact angle of 80.degree. or more to a drop of methane iodide(RfCH.sub.2 O).sub.n --PO(OM).sub.m (I)wherein n and m satisfy the equation: n+m=3; Rf represents a perfluoroalkyl group; and M represents an alkali metal ion, NH.sup.4+ or secondary, tertiary or quaternary ammonium ion.Type: GrantFiled: August 20, 1992Date of Patent: April 26, 1994Assignee: Fuji Photo Film Co., Ltd.Inventor: Toshiaki Aono
-
Patent number: 5300398Abstract: A thermal dye transfer process, and intermediate receiver used therein, for obtaining a color image which is used to represent a printed color image obtained from a printing press comprising (a) forming a thermal dye transfer image in a polymeric dye image-receiving layer of an intermediate dye-receiving element comprising a support having thereon said dye image-receiving layer by imagewise-heating a dye-donor element and transferring a dye image to the dye image-receiving layer, (b) adhering the dye image-receiving layer to a surface of a final receiver element by heat laminating the intermediate dye receiving element to the final receiver element, and (c) stripping the intermediate dye receiving element support from the dye image-receiving layer, wherein the intermediate dye receiving element further comprises a cushion layer between the support and the dye image-receiving layer, the shear modulus of the cushion layer being less than the shear modulus of the support and less than ten times the shear modulusType: GrantFiled: August 23, 1991Date of Patent: April 5, 1994Assignee: Eastman Kodak CompanyInventor: Linda Kaszczuk
-
Patent number: 5294516Abstract: A light sensitive transfer material comprises a peel-off support, an alkali-soluble thermoplastic resin layer, a water- or aqueous alkali-soluble or -dispersible interlayer having a low oxygen permeability, and a light sensitive resin layer arranged in this order, wherein the adhesion between the peel-off support and the thermoplastic resin layer is the smallest. A process for forming an image using the transfer material is also disclosed.Type: GrantFiled: June 24, 1992Date of Patent: March 15, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Morimasa Sato, Koji Inoue, Masayuki Iwasaki, Fumiaki Shinozaki
-
Patent number: 5286597Abstract: The photosensitive transfer material of the invention comprises a support, a subbing layer comprising an organic polymer and an image-forming layer containing a photosensitive polymer, wherein the subbing layer and/or the image-forming layer contains a matting agent of core-shell type crosslinked resin particles consisting of a core part made of a polymer having a crosslinking degree of 0.05 to 3.0 mmole/g and a shell part made of a substantially linear polymer having at least one kind of a hydrophilic functional group.Type: GrantFiled: March 18, 1992Date of Patent: February 15, 1994Assignees: Fuji Photo Film Co., Ltd., Nippon Paint Co., Ltd.Inventors: Tamotsu Suzuki, Mikio Totsuka, Tohru Nakatsuka, Masanori Ohiwa
-
Patent number: 5282918Abstract: An apparatus for separating and drawing off a film from a laminate, the laminate including the film and a carrier material upon which the film is laminated. The apparatus includes a first plate; a second plate being disposed above the first plate; a motor; a spindle being operatively connected to the motor; a separating apparatus being movable along the spindle above the first plate and including a wedge-shaped separating knife; a gap which lies above and parallel to the separating knife and which is inclined at an oblique angle relative to a horizontal plane; and a stay passing vertically through the first plate which holds an underside of the laminate firmly in place. The laminate rests on the first plate, and the separating apparatus moves into engagement with a corner of the film such that the film corner is detached from the carrier material and is threaded into the gap. The stay holds the underside of the laminate firmly in place when the film corner is threaded into the gap.Type: GrantFiled: August 12, 1992Date of Patent: February 1, 1994Assignee: Hoechst AktiengesellschaftInventors: Hans Heist, Stephan J. W. Platzer, Martin Stork
-
Patent number: 5278024Abstract: A photothermographic composite structure for use in a solvent-free dye thermal positive imaging diffusion-transfer process comprising:(a) an image-receiving element comprising a polymeric dyeable image-receiving layer having a glass transition temperature in the range of 20.degree. to 200.degree. C., and(b) strippably adhered to said image-receiving element, an imageable photothermographic element comprising in at least one layer thereof a binder, a silver source material, photosensitive silver halide in catalytic proximity to said silver source material, and a formazan dye.Type: GrantFiled: December 30, 1992Date of Patent: January 11, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Richard C. Cotner, David C. Weigel, Kumars Sakizadeh
-
Patent number: 5275914Abstract: A laminar thermal imaging medium is prepared from a first element comprising a first sheet transparent to image-forming radiation and having at least a surface zone or layer of polymeric material heat-activatable upon subjection of the thermal imaging medium to brief and intense radiation, the first element carrying a layer of porous or particulate image-forming substance having cohesivity in excess of its adhesivity for the polymeric heat-activatable layer, and, on the opposed side of the layer of porous or particulate image-forming substance from the surface zone or layer, a first layer of adhesive, and a second element comprising a second sheet carrying a second layer of adhesive. One of the first and second layers of adhesive comprises a polymeric hardenable adhesive comprising a macromolecular organic binder having amino or substituted amino groups, and a photopolymerizable monomer.Type: GrantFiled: July 31, 1992Date of Patent: January 4, 1994Assignee: Polaroid CorporationInventors: Iris B. K. Bloom, Richard A. Minns
-
Patent number: 5269873Abstract: An apparatus for peeling-off a film from a laminate, the laminate including the film and a carrier material upon which the film is laminated. The apparatus includes a horizontal base plate, and a platform having an upper portion and a lower portion, a front side, and a transverse gap which divides the upper portion from the lower portion. The platform is inclined relative to the horizontal base plate at a vertical to horizontal ratio of .ltoreq.10:1 and the laminate is guided over the platform. The apparatus also includes a separating apparatus which is disposed proximate to the transverse gap at a distance from and parallel to the front side of the platform.Type: GrantFiled: August 14, 1992Date of Patent: December 14, 1993Assignee: Hoechst AktiengesellschaftInventors: Stephan J. W. Platzer, Martin Stork, Guenter Hultzsch, Arthur E. Procter, Hans Heist
-
Patent number: 5270147Abstract: A stripping film material comprises a polyethylene terephthalate film base serving as temporary support being coated with a subbing layer essentially consisting of either:(1) hydroxypropylcellulose wherein the molar degree of substitution (DS) with hydroxypropyl groups is in the range of 3 to 1, or:(2) a copoly(vinyl acetate/crotonic acid) having a weight ratio of vinyl acetate to crotonic acid in the range of 85/15 to 99/1, wherein said subbing layer is coated with at least one hydrophilic colloid layer which is adapted to be stripped off after being moistened with an aqueous liquid, e.g. by contact with a wet surface of a permanent support.Type: GrantFiled: June 23, 1992Date of Patent: December 14, 1993Assignee: Agfa-Gevaert N.V.Inventors: Etienne A. Van Thillo, Eddie R. Daems, Luc H. Leenders, Guido J. Smits
-
Patent number: 5270146Abstract: In a dry film laminate useful in the printed circuit industry comprising a support sheet, a photoimageable composition layer and a protective sheet, a dual intermediate layer is interposed between the photoimageable composition layer and the support sheet. The intermediate layer consists of a water-soluble tie coat in contact with the photoimageable composition layer and a top coat in contact with the support sheet, the top coat being insoluble in neutral or acidic aqueous solution but soluble in dilute alkaline aqueous solution.Type: GrantFiled: April 7, 1992Date of Patent: December 14, 1993Assignee: Morton International, Inc.Inventor: Vinai M. Tara
-
Patent number: 5258281Abstract: A heat-developable photosensitive material which comprises an organic silver salt, a silver halide, a reducing agent and a heat development accelerator having a redox potential ranging from -1.2 V to +1.0 V on the basis of an AgCl/Ag electrode.Type: GrantFiled: November 12, 1991Date of Patent: November 2, 1993Assignee: Canon Kabushiki KaishaInventors: Hiromi Tanaka, Tetsuro Fukui, Motokazu Kobayashi, Kenji Kagami, Masao Suzuki, Tetsuya Higuchi
-
Patent number: 5254447Abstract: Photographic glass plates are advantageously prepared by a process in which the functional layers are applied to the glass plate support by lamination. In a first form of this process, a multilayer-composite comprising antihalation, silver halide emulsion and protective overcoat layers is transferred from a flexible polymeric film support to the glass support. In carrying out this first form of the process, a release layer, protective overcoat layer, silver halide emulsion layer and antihalation layer are coated, in order, on a flexible polymeric film and laminated via an adhesive layer to a glass plate having suitable thickness and flatness for use as a photographic support. The release layer is designed to have greater adhesion to the flexible polymeric film than to the protective overcoat layer, whereby the film and release layer can be stripped off prior to the plate being put into use.Type: GrantFiled: April 20, 1992Date of Patent: October 19, 1993Assignee: Eastman Kodak CompanyInventors: Arlene L. Meyer, Thomas M. Smith, Richard O. Smith
-
Patent number: 5232814Abstract: Metallic appearing images may be produced with a color proofing sheet which comprises a temporary carrier layer, a metallic appearance pigment-filled layer, a color pigment filled layer, a photoresist layer, and an optional adhesive layer. There may be a barrier layer between the optional adhesive and the resist layer and a release layer coating may be on the temporary carrier layer.Type: GrantFiled: December 30, 1991Date of Patent: August 3, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Charles W. Graves, Timothy W. Olson
-
Patent number: 5229247Abstract: A laminar thermal imaging medium, and a method of preparing same, are disclosed and include a photohardenable adhesive layer containing a photopolymerizable ethythenically unsaturated monomer, and a barrier layer for providing resistance to the diffusion of the polymerizable monomer therethrough to other layers of the thermal imaging medium. The barrier layer increases substantially the time period before which photohardening of the adhesive layer need be performed, during which time cutting and other manufacturing operations can be performed. The elastic and non-brittle character of the barrier layer provides improved durability of images prepared from the thermal imaging medium.Type: GrantFiled: November 27, 1991Date of Patent: July 20, 1993Assignee: Polaroid CorporationInventors: Kenneth J. McCarthy, Robert J. Pusateri
-
Patent number: 5227277Abstract: An imaging medium comprises a layer, depolymerizable by exposure to actinic radiation and substantially non-tacky prior to depolymerization but becoming tacky upon at least partial depolymerization, disposed adjacent a layer of an imaging material, which has a cohesive strength greater than the adhesive strength between the imaging material and the depolymerizable layer prior to depolymerization. This medium is imagewise exposed to radiation, thereby causing at least partial depolymerization of the polymer in the exposed areas, so rendering these exposed areas tacky and firmly attaching exposed areas of the imaging material layer to the depolymerizable layer. The unexposed areas of the imaging material are then removed from the depolymerizable layer.Type: GrantFiled: April 17, 1991Date of Patent: July 13, 1993Assignee: Polaroid CorporationInventor: Kenneth C. Waterman
-
Patent number: 5225314Abstract: An imaging medium comprises a layer, depolymerizable by exposure to actinic radiation and undergoing a reduction in cohesivity upon at least partial depolymerization, disposed adjacent a layer of an imaging material, which has a cohesive strength greater than the cohesive strength of the depolymerizable layer after depolymerization. This medium is imagewise exposed to radiation, thereby causing at least partial depolymerization of the polymer in the exposed areas, so rendering these exposed areas lower in cohesivity than the unexposed areas. The exposed areas of the imaging material are then removed from the depolymerizable layer.Type: GrantFiled: April 17, 1991Date of Patent: July 6, 1993Assignee: Polaroid CorporationInventors: Kenneth C. Waterman, Michael A. Young, Edward P. Lindholm
-
Patent number: 5217841Abstract: An image transfer type recording method and kits for forming images on a receiving medium stably adheres a developer layer to any type of image receiving medium, such as, for example, plain paper, cloths, plastic films or the like. According to an image transfer type recording method, the image formation layer and the image receiving medium are adhered to each other by an adhesive layer. Therefore, the image formation layer can be stably adhered to any type of image receiving medium The image formation layer is adhered to the image receiving medium while being sandwiched between a thermoplastic resin layer and the adhesive layer. Therefore, the color of the image formed on the image formation layer is not faded or reduced in brightness, even if the image is formed on media made from cloth and such media on which the image is formed is washed.Type: GrantFiled: March 13, 1991Date of Patent: June 8, 1993Assignee: Brother Kogyo Kabushiki KaishaInventor: Keiko Ishikawa
-
Patent number: 5200297Abstract: There is disclosed a laminar thermal imaging medium comprising a pair of sheet members and at least a layer of image-forming substance confined therebetween in laminar relation thereto, said laminar thermal imaging medium being actuatable in response to intense image-forming radiation for production of an image in said image-forming substance, said medium material having a tendency toward stress-induced adhesive failure at the interface therein having the weakest adhesivity, and such tendency being reduced by a polymeric stress-absorbing layer in close proximity to said interface, said polymeric stress-absorbing layer being capable of absorbing physical stresses applied to said laminar thermal imaging medium.Type: GrantFiled: November 21, 1990Date of Patent: April 6, 1993Assignee: Polaroid CorporationInventor: Neal F. Kelly
-
Patent number: 5178979Abstract: An image transfer type recording method for forming a visible image on a developer medium comprising a base sheet, a thermoplastic resin layer, and a developer material layer which is color-reactable with a chromogenic material laminated in this order, and transferring the visible image on the developer medium to any type of image supporting medium, comprising the steps of forming the visible image on the developer material layer through a color-reaction between the developer material and the chromogenic material, providing an adhesive layer on the developer material layer, superposing the developer material layer and the image supporting medium under pressure and heat to fixedly transfer the developer material layer having the visible image thereon to the image supporting medium, and peeling off only the substrate of the developer medium.Type: GrantFiled: October 30, 1990Date of Patent: January 12, 1993Assignee: Brother Kogyo Kabushiki KaishaInventors: Shunichi Higashiyama, Keiko Suzuki
-
Patent number: 5176973Abstract: An at least two-color low optical dot gain surlay pre-press color proof comprising a base having laminated thereto in the following order, a first adhesive layer, a first single-color image, and then at least one additional pair of thin adhesive layers and comprising a synthetic polymeric binder composition with a Tg of less than 105.degree. and a thickness of 8-30 microns which thickness is at least twice that of any one of said additional thin adhesive layers.Type: GrantFiled: September 28, 1989Date of Patent: January 5, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Charles J. Gifford, Jack E. Cook, Bruce W. Weeks, Julien M. Wajs
-
Patent number: 5156941Abstract: An optical or magneto-optical recording card is produced using a transfer type optical or magneto-optical recording medium. The transfer type optical or magneto-optical recording medium comprises a base film, a peeling layer, an optical or magneto-optical recording layer and a light permeable adhesive layer which are successively superimposed one above another to constitute a layered structure. A protective layer is adhered to the transfer type optical or magneto-optical recording medium with the aid of an adhesive layer and the base film is then peeled off together with the peeling layer. Next, the protective layer to which the optical or magneto-optical recording layer is adhered is adhesively attached to a card base in such a manner that the optical or magneto-optical recording layer is interposed therebetween whereby an optical or magneto-optical recording card is completely produced. The transfer type recording medium can be preserved in such a state that it is wound about a reel.Type: GrantFiled: August 23, 1989Date of Patent: October 20, 1992Assignee: Kyodo Printing Co., Ltd.Inventors: Minoru Fujita, Yoichi Fukushima, Toshio Haga
-
Patent number: 5155003Abstract: There is disclosed a thermal imaging laminar medium, actuatable in response to intense image-forming radiation for production of an image, and including a thermoplastic intermediate layer which, upon separation of the sheet-like or web materials of the laminar medium after thermal exposure, provides surface protection for one of the pair of images obtained thereby.Type: GrantFiled: November 21, 1990Date of Patent: October 13, 1992Assignee: Polaroid CorporationInventor: Kuang C. Chang
-
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
-
Patent number: 5110707Abstract: An optical recording card is produced using a transfer type optical recording medium. The transfer type optical recording medium comprises a base film, a peeling layer, an optical recording layer and a light permeable adhesive layer which are successively superimposed one above another to constitute a layered structure. A protective layer is adhered to the transfer type optical recording medium with the aid of an adhesive layer and the base film is then peeled off together with the peeling layer. Next, the protective layer to which the optical recording layer is adhered is adhesively attached to a card base in such a manner that the optical recording layer is interposed therebetween whereby an optical recording card is completely produced. The transfer type recording medium can be preserved in such a state that it is wound about a reel. Accordingly, the transfer type recording medium is adhered to the protective layer when the optical recording card is produced, and thereafter it is adhered to the card base.Type: GrantFiled: January 26, 1990Date of Patent: May 5, 1992Assignee: Kyodo Printing Co., Ltd.Inventors: Minoru Fujita, Yoichi Fukushima, Toshio Haga
-
Patent number: 5093168Abstract: An image-receiving sheet element comprising an image-receiving layer provided on a flexible substrate and a removable cover sheet, wherein said cover sheet comprises a low density copolymer containing 30% by weight or more of a linear polyethylene, is described. This image-receiving sheet element shows improved slip properties and a good workability, and little deterioration in transfer properties upon prolonged storage. Furthermore, it scarcely suffers from any caused by static electricity when the cover sheet is peeled off from the image-receiving sheet.Type: GrantFiled: September 28, 1990Date of Patent: March 3, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Tamotsu Suzuki, Tomizo Namiki, Masashi Katayama
-
Patent number: 5068165Abstract: 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-protenic 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 image aluminium foil. The invention also relates to the photosensitive monosheet layer assemblage used for making such printing plates.Type: GrantFiled: July 16, 1990Date of Patent: November 26, 1991Assignee: AGFA-Gevaert, N.V.Inventors: Paul J. Coppens, Ludovicus H. Vervloet, Luc H. Leenders, Ronald Schuerwegen
-
Patent number: 5059509Abstract: An improvement in a multicolor image-forming method and a multicolor image-forming material applied to the same, employing a heat transfer photosensitive material comprising a transparent substrate, a colored layer which is soluble in water but insolubilizable by light, and a heat-fusible and bondable intermediate layer therebetween.Type: GrantFiled: April 1, 1991Date of Patent: October 22, 1991Assignee: Sanyo-Kokusaku Pulp Co., Ltd.Inventors: Hisashi Mino, Takeshi Iijima, Kuniaki Monden
-
Patent number: 5055329Abstract: An image-receiving sheet material to be used for the formation of a transferred image by transferring a transferable image formed on an image-forming layer of a photo-sensitive material onto the image-receiving sheet material and then retransferring the image onto a permanent substrate, wherein the image-receiving sheet material comprises a substrate and first and second image-receiving layers located adjacent each other and comprising organic high polymer(s), wherein the second image-receiving layer is to be transferred onto the permanent substrate and further comprises at least one of the following components (I) and (II):(I) one or more compounds represented by general formula R.sub.1 --X, wherein X is --CH.sub.2 OR.sub.2, --COOH or --CONH.sub.2 ; R.sub.1 is a monovalent hydrocarbon group of C.sub.n H.sub.2n+1 or C.sub.n H.sub.2n-1, wherein n is an integer of from 11 to 21; R.sub.2 is a hydrogen atom or --CO--R.sub.3 --S--R.sub.3 --COOCH.sub.2 --R.sub.1 ; and R.sub.Type: GrantFiled: March 16, 1990Date of Patent: October 8, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Tomizo Namiki, Tamotsu Suzuki, Masashi Katayama
-
Patent number: 5053310Abstract: This invention relates to negative photosensitized sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to predict the image quality from a lithographic printing process.Type: GrantFiled: July 17, 1990Date of Patent: October 1, 1991Assignee: Hoechst Celanese CorporationInventor: Stephan J. W. Platzer
-
Patent number: 5035981Abstract: In a process for preparing a photopolymer printing plate, relief plate or photoresist from a photosensitive recording element containingA) a photopolymerizable relief-forming layer which can be developed with liquid developer after imagewise exposure to actinic light,B) a top layer which consists of polymers forming films of high tensile strength, adheres firmly to the photopolymerizable relief-forming layer (A) and is soluble or swellable in the liquid developers andC) a cover sheet which can readily be peeled off from the top layer (B),comprising peeling off the cover sheet (C) from the top layer (B), imagewise exposing to actinic light and developing the relief-forming layer (A), the formation of an electrostatic charge on top of the photosensitive recording element being prevented by incorporating into the element a top layer (B) containing specific tertiary amines and/or amides and/or specific quaternary ammonium salts.Type: GrantFiled: February 6, 1990Date of Patent: July 30, 1991Assignee: BASF AktiengesellschaftInventors: Karl-Rudolf Kurtz, Horst Koch, Thomas Telser, Helmut Bach