Color Proofing Or Multicolor Image Formation Patents (Class 430/293)
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Patent number: 5300399Abstract: In the present invention, one produces a negative-acting color proofing element comprising, sequentially, a strippable cover sheet which is transparent to actinic radiation; a crosslinked layer containing a polymer having phenolic groups; a color layer, containing a colorant, a polymeric binder, a polymerizable monomer and, optionally, a photoinitiator; a photoadhering layer, containing a linear photosensitive polymer containing ethylenically unsaturated, free-radical polymerizable groups and having a molecular weight greater than 3,000, a polymerizable monomer, and, optionally, a free radical photoinitiator; a thermoplastic adhesive layer; and a receiver sheet, at least one of the color layer and the photoadhering layer containing the photoinitiator.Type: GrantFiled: January 21, 1993Date of Patent: April 5, 1994Assignee: Hoechst Celanese CorporationInventor: Wojciech A. Wilczak
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Patent number: 5300395Abstract: A white, partially translucent, metallized film article which having a flexible, heat resistant, polymeric film material with opposite sides. The film material has deposited on a first side a metal coating which is spectrally reflective and partially light transmissive in the visible region of the spectrum, is capable of transmitting from about 1% to about 70% of incident visible light cast thereon; the second side having a white outermost surface, and has a visible light opacity of from about 0.5 to about 0.98.Type: GrantFiled: July 6, 1993Date of Patent: April 5, 1994Assignee: Hoechst Celanese CorporationInventors: Robert J. von Trebra, Gerald A. Smith, Roy E. Hensel, Oliver A. Barton, deceased
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Patent number: 5294515Abstract: This invention relates to negative working photopolymerizable 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 accurately predict the image quality from a lithographic printing process. Image development is by peel apart processing.Type: GrantFiled: May 17, 1991Date of Patent: March 15, 1994Assignee: Hoechst Celanese CorporationInventors: Wojciech A. Wilczak, Timothy Hannigan
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Patent number: 5292622Abstract: A process for preparing images on a tonable, light-sensitive layer using a transfer layer containing at least 20 percent by weight of a toner and a polymer with a maximum tensile strength of at least 2 N/mm.sup.2 as a binder. The pigmented transfer layers can be used in color proofing processes requiring high resolution, reproducible color density and low dot gain.Type: GrantFiled: November 23, 1992Date of Patent: March 8, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: Bernhard Metzger, Helmut H. Frohlich
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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
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Patent number: 5279912Abstract: A three-dimensional image is produced using an imaging medium having a lenticular screen, the lenticles of the screen dividing the opposed surface of the imaging medium into a plurality of elongate image areas, the imaging medium having on the opposed side thereof a radiation-sensitive layer, the radiation-sensitive layer comprising a color-forming composition adapted to undergo a change of color upon increase in the temperature of the radiation-sensitive layer above a color-forming temperature for a color-forming time.Type: GrantFiled: May 11, 1992Date of Patent: January 18, 1994Assignee: Polaroid CorporationInventors: Stephen J. Telfer, Michael J. Zuraw
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Patent number: 5273855Abstract: (Objective) In a color-proof material performed by forming multi-color image on an arbitrary material (ultimate image-receiving material) such as paper using a photosensitive transfer sheet and an intermediate image-receiving sheet, the objective is to bring the quality close to the printed quality formed with inks alone.(Constitution) For the photosensitive sheet, the colored photosensitive layer is formed with a material comprising a synthetic resin emulsion with Tg=-20.degree. to 40.degree. C. such as acrylic ester or ethylene-vinyl acetate copolymer so that the image layer itself has heat-adhesivity. Moreover, the image-receiving layer of the intermediate image-receiving sheet is formed with a material containing a resin cross-linked copolymer of olefin and .alpha., .beta.-unsaturated carboxylic acid with metallic ions and a resin comprising a copolymer of ethylene and vinyl acetate in a proportion by weight of 100/0 to 10/90.Type: GrantFiled: November 21, 1991Date of Patent: December 28, 1993Assignee: Sanyo-Kokusaku Pulp Co., Ltd.Inventors: Hisahiro Omote, Masahiro Yoshikawa, Masahide Takano
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Patent number: 5268245Abstract: A filter is formed on a solid state imager by:forming, on the imaging surface of the imager, an adherent layer of a dye-containing photoresist composition comprising a photoresist resin and a thermochromic dye, this dye being substantially non-absorbent of actinic radiation of a first wavelength, but capable, upon heating, of undergoing a thermally-induced color change which renders it absorptive of actinic radiation of the first wavelength;imagewise exposing the adherent layer of dye-containing photoresist composition to actinic radiation of the first wavelength;removing one of the exposed and unexposed areas of the layer, while leaving the other of the exposed and unexposed areas on the imaging surface, to form a pattern of filter elements; andheating the solid state imager to a temperature and for a time sufficient to cause the dye to undergo its color change, thereby causing the filter elements to become absorptive of radiation of the first wavelength.Type: GrantFiled: July 9, 1992Date of Patent: December 7, 1993Assignee: Polaroid CorporationInventor: Carl A. Chiulli
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Patent number: 5266427Abstract: A display board has a substrate, a transparent photopolymerization resin layer formed on the substrate, and a picture layer formed in a surface of the transparent photopolymerization resin layer. The picture layer is composed of at least one dots-shaped colored photopolymerization resin. This display board is produced by exposing a colored photopolymerization resin film supported by a support member through a negative having a predetermined picture pattern to form a dots-shaped colored photopolymerization resin layer on the support member, transferring the dots-shaped colored photopolymerization resin layer to a surface of a transparent photopolymerization resin layer formed on a substrate to form a picture layer in the surface of the transparent photopolymerization resin layer, and setting the transparent photopolymerization resin layer in which the picture layer is formed to fix the picture layer.Type: GrantFiled: April 1, 1992Date of Patent: November 30, 1993Assignee: Nippondenso Co., Ltd.Inventors: Teruhiko Iwase, Takeshi Imai, Toshio Koura
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Patent number: 5248583Abstract: A photosensitive color proofing article comprising in the following order:a) a carrier layer,b) a release layer which acts as an oxygen barrier layer,c) a photopolymerizable layer comprising a multifunctional acrylate oligomer and a colorant,d) a photopolymerizable barrier layer, ande) a thermal adhesive layer.Type: GrantFiled: August 30, 1991Date of Patent: September 28, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Wallace R. Lundquist, Thomas P. Klun, Michael B. Heller, Leonard W. Sachi
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Patent number: 5246812Abstract: A white, partially translucent, metallized film article which having a flexible, heat resistant, polymeric film material with opposite sides. The film material has deposited on a first side a metal coating which is spectrally reflective and partially light transmissive in the visible region of the spectrum, is capable of transmitting from about 1% to about 70% of incident visible light cast thereon; the second side having a white outermost surface, and has a visible light opacity of from about 0.5 to about 0.98.Type: GrantFiled: March 22, 1990Date of Patent: September 21, 1993Assignee: Hoechst Celanese CorporationInventors: Robert J. von Trebra, Gerald A. Smith, Roy E. Hensel, Oliver A. Barton, deceased
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Patent number: 5240810Abstract: Most prepress color proofing systems require the use of special receptor sheets. The differences between the special sheets and the final print sheet can affect the desired color balance. The use of a proof image on a temporary transfer sheet, with an adhesive layer between the image and a final receptor layer, enables the use of essentially any printing stock or printing surface as the final proofing image substrate.Type: GrantFiled: July 8, 1991Date of Patent: August 31, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventor: Hamid Barjesteh
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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
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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
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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
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Patent number: 5223374Abstract: The present invention relates to a process for preparing a multicolored proof, using a radiation-sensitive recording material which comprises a temporary, sheet-shaped layer support, a thermally transferable layer containing a colorant in one primary color and a radiation-sensitive layer. The process comprises the steps of: a) exposing the recording material imagewise b)developing the exposed layer with an aqueous-alkaline solution to uncover the thermally transferable image areas, and c) contacting the coated side of the recording material with an image receptor and transferring the transferable image areas to the image receptor, with the application of heat and pressure, to produce a partial image in the first primary color. The above-described process steps are repeated at least once, using a radiation-sensitive recording material which contains a colorant in another primary color in its thermally transferable layer.Type: GrantFiled: March 18, 1992Date of Patent: June 29, 1993Assignee: Hoechst AktiengesellschaftInventors: Dieter Mohr, Rudolf Zertani, Juergen Mertes, Martin Benzing
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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: 5217832Abstract: Color transparencies having more than one imaged dichroic filter, and an imaged neutral density filter, layered on one side of a single glass substrate, and processes for making the same, are disclosed. In one embodiment, the color transparency is produced by a deposition process including the steps of coating a glass substrate with a photoresist and developing an image thereupon, depositing alternating layers of high and low refractive index dielectrics to form a dichroic layer of a primary subtractive color, stripping the photoresist from the glass, preparing at least one additional imaged dichroic filter on the first, and preparing a neutral density filter on the substrate on the side having the layered dichroic filters. A red antihalation coating may be applied to the lower surface of the glass substrate prior to exposing the photoresist to prevent undesirable exposure of additional portions of the photoresist layer.Type: GrantFiled: January 23, 1992Date of Patent: June 8, 1993Assignee: The Walt Disney CompanyInventors: Robert W. Joslin, Kathleen L. Nelson
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Patent number: 5215865Abstract: An image development method is disclosed. In the method, a photoresist layer on a metal surface is exposed for development. The developer then used is a solution which will both develop the photoresist image and cause any exposed metal surface to change to a predetermined color. The development process then proceeds until the predetermined color is exposed whereupon the process ceases. The preferred metal is copper and the preferred developer is an aqueous solution of sodium sulphide and ammonium polysulfide.Type: GrantFiled: August 3, 1991Date of Patent: June 1, 1993Inventor: Ron-Hon Chen
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Patent number: 5215864Abstract: A method and apparatus for engraving a metal plate in two or more colors. Selected areas of an oxidized aluminum plate are colored by a first dye to which the plate has an affinity. The selected areas may then be sealed by hydration. Portions of the selected areas of the colored oxidized aluminum plate can then be further engraved by the application of a focussed laser beam, which removes any of the first dye and the sealant, thereby restoring the affinity of the selected portions of the plate. The areas of the plate having an affinity for dyes can be colored by secondary and additional colors and shades thereof.Type: GrantFiled: September 28, 1990Date of Patent: June 1, 1993Assignee: Laser Color Marking, IncorporatedInventor: Peter Laakmann
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Patent number: 5212041Abstract: This invention relates to water developable, negative working 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. The invention provides both overlay and transfer type proofing sheets which have good fingerprint resistance.Type: GrantFiled: April 2, 1991Date of Patent: May 18, 1993Assignee: Hoechst Celanese CorporationInventor: Stanley F. Wanat
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Patent number: 5192641Abstract: A process for producing a color image on color proofing film which comprises:(i) providing digital data representative of the shape and color of an original image;(ii) inputting the digital data into a computer;(iii) providing a color printer which is in communication with and controlled by the computer;(iv) providing the printer with a precoated photosensitive color proofing film, a thermal wax and means for transferring the wax to the color proofing film;(v) melting the thermal wax, in response to the digital data, in a manner which provides a pattern corresponding to the shape of the original image, the pattern providing a temporary wax optical mask;(vi) exposing the photosensitive layer of the color proofing film, through the thermal wax optical mask, to actinic radiation, the wax on the color proofing film absorbing the actinic radiation, whereby a photoreaction occurs in the exposed areas of the photosensitive layer of the color proofing film; and(vii) developing the color proofing film to provide a colType: GrantFiled: December 19, 1990Date of Patent: March 9, 1993Assignee: Hoechst Celanese CorporationInventors: Sonya Y. Shaw, Douglas A. Seeley
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Patent number: 5186801Abstract: The present invention provides an improved process for forming a color filter for a color display. The process comprises:(a) forming a transparent electroconductive layer on a substrate,(b) forming a negative type photosensitive resin layer having a desired color by electrodeposition on the transparent electroconductive layer,(c) exposing the photosensitive resin layer to light through a negative mask having a desired pattern followed by developing to form a patterned color layer, and(d) effecting the steps (b) and (c) necessary times to form patterned layers having required colors.Type: GrantFiled: August 23, 1991Date of Patent: February 16, 1993Assignee: Nippon Paint Co., Ltd.Inventors: Akira Matsumura, Masashi Ohata, Katsukiyo Ishikawa
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Patent number: 5183723Abstract: This invention relates to a method for forming a colored image on a degradable sheet material. As a result, a negative- or positive-working color proofing sheet can be produced on a variety of printing paper stocks. Upon exposure to an actinic radiation source through a screened image and development, it can accurately reproduce the image on the degradable sheet. The construction is useful as a color proof which can be employed to accurately predict the image quality from a lithographic printing process on a variety of printing surfaces.Type: GrantFiled: December 13, 1991Date of Patent: February 2, 1993Assignee: Hoechst Celanese CorporationInventors: Stephan J. W. Platzer, Arthur E. Procter, Thomas Dunder
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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
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Patent number: 5169827Abstract: A method for manufacturing a color separation plate for screen dot color printing, having screen dots recorded thereon, the size of the screen dots corresponding to the density of one of the primary colors of an image to be printed, by one of the color signals corresponding to respective primary colors and obtained by reading out the image to generate an electric signal corresponding to the image and separating the electric signal into the color signals corresponding to the primary colors, respectively. A sheet of recording material (12) which is transparent and applicable to thermal transfer recording is prepared. Also prepared is a rotatable flat platen (11). The sheet (12) of the recording material is put on the flat platen and the flap platen is rotated by a specific angle from the position where the sheet of the recording material is put on the flat platen.Type: GrantFiled: August 16, 1991Date of Patent: December 8, 1992Assignee: Victor Company of Japan, Ltd.Inventors: Itsuo Takanashi, Naomi Osada, Tadao Shinya
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Patent number: 5158862Abstract: This invention relates to the preparation of a supported modulating film having a permanent orange yellow imaged layer of the homopolymer of crystralline 5,7-dodecadiyn-1,12-bis(isopropyl carbamate) monomer having the structure ##STR1## and to the use of said film as a blue light modulator in the production of master printing plates or printed circuit boards.Type: GrantFiled: February 3, 1992Date of Patent: October 27, 1992Assignee: ISP Investments Inc.Inventor: Kou-Chang Liu
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Patent number: 5155010Abstract: Layer transfer process for image production wherein predetermined areas of the surface of an image carrier (21) are prepared to accept a color layer, the image carrier (21) and a color carrier (22) of layer transfer material are brought into mutual contact under pressure, and the color carrier is removed from the image carrier, so that color remains on the predetermined areas of the image carrier. A high uniformity of colorant application can be achieved over the entire surface of the image carrier. The process is performed by an apparatus with at least one roll nip (31) formed by two hard rolls (11, 12), preferably with different diameters, in which the two rolls are mutually offset relative to the feed direction (30) of the image carrier (21).Type: GrantFiled: October 31, 1990Date of Patent: October 13, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: Helmut G. Sandner
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Patent number: 5140396Abstract: A filter is formed on a substrate, such as a solid state imager, by providing successively on the substrate a layer of an absorber material, a layer of a barrier material, and a layer of a photoresist material. The photoresist is patternwise exposed and developed, thereby baring regions of the barrier layer underlying selected regions of the photoresist layer. The coated substrate is reactive ion etched under a first set of etching conditions to etch away the bared regions of the barrier layer and to bare but not substantially etch the underlying regions of the absorber layer, and then reactive ion etched under a second set of etching conditions, thereby etching away the remaining regions of the photoresist layer and the bared regions of the absorber layer, so forming a filter on the substrate. To form multi-colored filters, the process may be repeated with a different dye, or additional dyes may be deposited by other processes, such as that described in U.S. Pat. No. 4,808,501.Type: GrantFiled: June 13, 1991Date of Patent: August 18, 1992Assignee: Polaroid CorporationInventors: Christopher R. Needham, Carl A. Chiulli, Stephen F. Clark
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Patent number: 5137800Abstract: A polymerizable composition and a method are disclosed. The composition includes a photopolymerizable monomer and a photoinitiator system for the monomer. The system, in one embodiment, is one wherein a ray of activating radiation which enters a body of the composition through a surface thereof activates the photoinitiator system and causes polymerization at each of a succession of points, the first such point being immediately adjacent the surface and subsequent points being successively farther from the surface in the direction of travel of the ray of activating radiation, the distance from the surface to the point of the succession farthest therefrom varying as a function of at least one of(a) the intensity of the activating radiation and(b) the time during which the activating radiation enters the body through the surface.Type: GrantFiled: June 14, 1990Date of Patent: August 11, 1992Assignee: StereoGraphics Limited PartnershipInventors: Douglas C. Neckers, Oscar Valdes-Aguilera, Krishan S. Raghuveer, Darrell G. Watson
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Patent number: 5100757Abstract: This invention relates to a method for forming a colored image on a degradable sheet material. As a result, a negative- or positive-working color proofing sheet can be produced on a variety of printing paper stocks. Upon exposure to an actinic radiation source through a screened image and development, it can accurately reproduce the image on the degradable sheet. The construction is useful as a color proof which can be employed to accurately predict the image quality from a lithographic printing process on a variety of printing surfaces.Type: GrantFiled: October 21, 1988Date of Patent: March 31, 1992Assignee: Hoechst Celanese CorporationInventors: Stephan J. W. Platzer, Arthur E. Proctor, Thomas Dunder
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Patent number: 5096801Abstract: A novel color image recording method is provided, which comprises exposing to light a light-sensitive material obtained by dispersing a composition containing at least a photopolymerization initiator, a color image-forming substance and a polymerizable compound in a hydrophilic binder and then coating said dispersion on a support, subjecting said polymerizable compound in the exposed portions to polymerization, and then (a) eluting said color image-forming substance contained in the unpolymerized polymerizable compound in the unexposed portions with an alkaline aqueous solution or (b) subjecting said color image-forming substance contained in the unpolymerized polymerizable compound in the unexposed portions to chemical change so that it is discolored, thereby forming dye images.Type: GrantFiled: April 3, 1990Date of Patent: March 17, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Keizo Koya, Kozo Sato, Yoshiharu Yabuki, Hiroshi Hara
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Patent number: 5085973Abstract: Herein is provided a color filter prepared by providing red, green and blue image elements, comprising as photosensitive resin and a pigment, and a black matrix on a transparent substrate and further providing thereon a transparent electrode layer, wherein said photosensitive resin is so formulated that it comprises a polyfunctional acrylate monomer, an organic polymer binder and a photopolymerization initiator comprising a 2-mercapto-5-substituted thiadiazole compound represented by general formulas (I) and/or general formulas (II), a phenyl ketone compound represented by general formulas (III) and 2,4,5-triphenylimidazolyl dimer composed of two lophine residues combined to each other through intermediation of a single covalent bond.A pattern having a high precision and a good surface smoothness can be obtained owing to the photosensitive resin, and a color filter having a good environmental resistance can be obtained owning to the pigment.Type: GrantFiled: June 13, 1991Date of Patent: February 4, 1992Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tokihiko Shimizu, Kesanao Kobayashi
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Patent number: 5080996Abstract: A photosensitive element which comprises a substrate having a release surface; a photosensitive layer having a photosensitizer, pigment, and mixture of binders with different solubility characteristics; and an adhesive layer coated directly on the photosensitive layer. The adhesive solution dissolves one of the resins in the photosensitive layer but does not dissolve the photosensitizer and the resin used to bind the pigment. During overcoating of the adhesive on the photosensitive layer, an increasing gradient of the soluble resin towards the adhesive layer and a decreasing gradient of the photosensitizer and nonsoluble resin is formed.Type: GrantFiled: January 28, 1991Date of Patent: January 14, 1992Assignee: Hoechst Celanese CorporationInventor: Stephan J. W. Platzer
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Patent number: 5059500Abstract: A filter is formed on a substrate, such as a solid state imager, by providing successively on the substrate a layer of an absorber material, a layer of a barrier material, and a layer of a photoresist material. The photoresist is patternwise exposed and developed, thereby baring regions of the barrier layer underlying selected regions of the photoresist layer. The coated substrate is reactive ion etched under a first set of etching conditions to etch away the bared regions of the barrier layer and to bare but not substantially etch the underlying regions of the absorber layer, and then reactive ion etched under a second set of etching conditions, thereby etching away the remaining regions of the photoresist layer and the bared regions of the absorber layer, so forming a filter on the substrate. To form multi-colored filters, the process may be repeated with a different dye, or additional dyes may be deposited by other processes, such as that described in U.S. Pat. No. 4,808,501.Type: GrantFiled: October 10, 1990Date of Patent: October 22, 1991Assignee: Polaroid CorporationInventors: Christopher R. Needham, Carl A. Chiulli, Stephen F. Clark
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Patent number: 5053320Abstract: The invention relates to a photosensitive composition for direct dry negative color printing composition. The photosensitive composition comprises a binder containing a plurality of grains of a semiconductor material, each grain having adsorbed on its surface one of three different complexes of spiropyran with a metal salt, each complex being sensitive to a different wavelength of light, a cross-linkable polymer and free radical initiator. The composition and process enables photofinishing or printing from a negative.Type: GrantFiled: April 16, 1990Date of Patent: October 1, 1991Assignee: Richard L. ScullyInventor: Jean J. A. Robillard
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Patent number: 5053299Abstract: A method of forming a color filter array which includes forming only a single image mordant layer on a device and then exposing the mordant to a pattern representing an array of filter elements and developing areas of the mordant to provide separated filter elements. These filter elements are then selectively dyed different colors.Type: GrantFiled: May 25, 1990Date of Patent: October 1, 1991Assignee: Eastman Kodak CompanyInventors: Michael J. Hanrahan, Kathleen S. Hollis
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Patent number: 5049476Abstract: This invention relates to positive working photopolymerizable 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 accurately predict the image quality from a lithographic printing process.Type: GrantFiled: January 10, 1990Date of Patent: September 17, 1991Assignee: Hoechst Celanese CorporationInventor: Stephan J. W. Platzer
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Patent number: 5039590Abstract: This invention relates to a single positive or negative working photosensitive layer on a substrate which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image after processing and lamination. 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: October 17, 1989Date of Patent: August 13, 1991Assignee: Hoechst Celanese CorporationInventors: Stephan J. W. Platzer, Gabor I. Koletar
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Patent number: 5034304Abstract: Selected photosensitive compounds activated by deep ultraviolet radiation or x-rays and capable of being employed at very low concentrations in photosensitive compositions are provided for producing thermally stable and aqueously developable, negative images on surfaces. The selected photosensitive compounds are halogenated organic compounds, including 1,1-bis[p-chlorophenyl]-2,2,2-trichloroethane, which generate an inorganic halogen acid upon exposure to deep UV or other short wavelength radiations. They may be used at concentrations of less than 5 weight percent of the total solids content of the photosensitive composition to produce aqueously developable negative images using deep UV exposure.Type: GrantFiled: May 8, 1987Date of Patent: July 23, 1991Assignee: Rohm and Haas CompanyInventor: Wayne E. Feely
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Patent number: 5028511Abstract: This invention relates to a peel-apart photosensitive element comprising a strippable coversheet, a photorelease layer, a photohardenable layer, an elastomeric layer, and a support, which is useful in a variety of image reproduction processes.Type: GrantFiled: October 31, 1990Date of Patent: July 2, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventor: John H. Choi
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Patent number: 5019484Abstract: A color proof formation method includes the steps of bringing a first color separated film original mounted upon an original mounting table into tight contact with a photosensitive material fixed upon a mounting table, and exposing the film original; separating the photosensitive material mounting table from the original mounting table; replacing or exchanging the first film original upon the original mounting table with a second color separated film original; and bringing the second film original into tight contact with the photosensitive material. The steps are repeatedly performed a predetermined number of times so as to form a color proof.Type: GrantFiled: December 19, 1988Date of Patent: May 28, 1991Assignee: Konica CorporationInventors: Hitoshi Shimaoka, Shigera Mizuo, Akira Akashi, Miyuki Hosoi
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Patent number: 5019536Abstract: 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: July 25, 1990Date of Patent: May 28, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventor: Harvey W. Taylor, Jr.
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Patent number: 5008174Abstract: A photosensitive element which comprises a substrate having a release surface; a photosensitive layer having a photosensitizer, pigment, and mixture of binders with different solubility characteristics; and an adhesive layer coated directly on the photosensitive layer. The adhesive solution dissolves one of the resins in the photosensitive layer but does not dissolve the photosensitizer and the resin used to bind the pigment. During overcoating of the adhesive on the photosensitive layer, an increasing gradient of the soluble resin towards the adhesive layer and a decreasing gradient of the photosensitizer and nonsoluble resin is formed.Type: GrantFiled: October 21, 1989Date of Patent: April 16, 1991Assignee: Hoechst Celanese CorporationInventor: Stephan J. W. Platzer
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Patent number: 5008166Abstract: A method of manufacturing color filters in which a photosensitive film, which is used for forming filter elements, is formed on a substrate. A photomask with a given stripe pattern is placed above the photoresistive film. Under this condition, the photomasked-film is subjected to a first exposure process. The photomask is then moved in the direction of the stripes in the mask pattern. Following a second exposure process, developing, dyeing and dyeing-preventing processes are performed for color filter element formation. The foregoing steps are performed for each filter element for a specified color.Type: GrantFiled: November 8, 1989Date of Patent: April 16, 1991Assignee: Casio Computer Co., Ltd.Inventor: Toshihiro Aoki
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Patent number: 5006863Abstract: A heat sensitive copy system uses a magnetic thermal transfer ribbon to transfer images onto an adjacent medium and near infra-red energy is used to transfer the images from the medium onto thermal paper or onto translucent paper for producing multiple copies in a manner which is not thickness sensitive.Type: GrantFiled: February 8, 1989Date of Patent: April 9, 1991Assignee: NCR CorporationInventor: Shashi G. Talvalkar
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Patent number: 5002850Abstract: A photosensitive material comprises:(I) an undercoat layer containing at least one alcohol-soluble polyamide;(II) an alcohol-insoluble barrier layer; and(III) a coloring material-containing photosensitive layer or a laminate of a coloring material layer and a photosensitive layer superposed in order on a support to form a laminate.Type: GrantFiled: August 3, 1989Date of Patent: March 26, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Fumiaki Shinozaki, Kazuo Suzuki, Tamotsu Suzuki, Tomizo Namiki, Tomohisa Tago, Mikio Totsuka
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Patent number: 5001036Abstract: This invention relates to a peel-apart photosensitive element comprising a strippable coversheet, a photorelease layer, a photohardenable layer, an elastomeric layer, and a support, which is useful in a variety of image reproduction processes.Type: GrantFiled: May 30, 1989Date of Patent: March 19, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventor: John H. Choi
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Patent number: 5001037Abstract: Provided is a multilayer, multicolor overlay proof comprising at least one precolored overlay image and at least one toned overlay image, as well as a process for preparing such an overlay proof.Type: GrantFiled: February 5, 1990Date of Patent: March 19, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventors: Jon W. Matthews, Jeffrey W. Milner, Harvey W. Taylor, Jr.
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Patent number: 4994345Abstract: A method for making a color proof in a photo-mechanical process. The method comprises a step for exposing a silver halide color photographic light-sensitive material to light through a black-and-white halftone dot image, and a step for developing said silver halide color photographic light-sensitive material with a color developer. The photographic material is comprised of at least three silver halide emulsion layers which are different from each other in spectral sensitivity thereof, and at least one of these silver halide emulsion layers contains a specific yellow coupler and the color developer contains a specific color developing agent. A halftone color image having a color tone similar to that of image printed with printing inks can be obtained by the simplified process.Type: GrantFiled: June 5, 1989Date of Patent: February 19, 1991Assignee: Konica CorporationInventors: Tomomi Yoshizawa, Keiji Ogi, Nariko Kimura