Multilayer Patents (Class 430/14)
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Patent number: 5114813Abstract: Silicate glasses are provided which when exposed to a silver ion exchange surface treatment are writable with electron beams. These glasses contain OD agents and do not require elements having 1-4 d-electrons in the atomic state.Type: GrantFiled: February 8, 1990Date of Patent: May 19, 1992Assignee: Schott Glass Technologies, Inc.Inventors: Stephen W. Smoot, Joseph S. Hayden, Marc Clement, Danuta Grabowski, Eva Holzel, Peter Nass, Martin Heming
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Patent number: 5110697Abstract: A photolithographic composition having improved processability and which eliminates the need for inter layering multiple special purpose coatings in the production of micro-electronic devices is surprisingly made possible by selective dissolution of poly(vinylpyridine) and an effective light attenuating material in critical solvents.Type: GrantFiled: December 13, 1990Date of Patent: May 5, 1992Assignee: Brewer Science Inc.Inventors: James E. Lamb, III, Terry Brewer, J. Michael Mori
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Patent number: 5108857Abstract: A light control sheet capable of scattering an incident light of particular incident angle is produced by a method composed of preparing a film of a composition containing at least two photopolymerizable components having different refractive indexes, irradiating on the film a light from a particular direction, and obtaining a cured film of the light control sheet product. Such other light control sheets as capable of scattering a plurality of incident lights each of particular incident angle are obtained by modification of the above-mentioned method.Type: GrantFiled: April 5, 1990Date of Patent: April 28, 1992Assignees: Sumitomo Chemical Company, Limited, Nippon Sheet Glass Co., Ltd.Inventors: Shinichiro Kitayama, Teruho Adachi, Masahiro Ueda, Yuichi Aoki, Satoshi Shiiki, Akio Takigawa, Motoaki Yoshida, Naoya Imamura, Koichi Maeda, Hisayuki Kayanoki
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Patent number: 5087536Abstract: A toner image carrying thermoplastic layer on a receiving sheet is texturized from the back side of the sheet by positioning the sheet between a smooth hard surface and a texturizing surface with the texturizing surface contacting the back side. The thermoplastic layer is softened by heat and becomes texturized without embossing the back side. A curl preventing layer on the back side is not embossed because it has a melting point above the temperature of the process. A glossy-textured print can be produced this way. The process is especially useful in making multicolor prints of photographic quality.Type: GrantFiled: April 22, 1991Date of Patent: February 11, 1992Assignee: Eastman Kodak CompanyInventors: Muhammad Aslam, Thomas J. Farnand, Ernest J. Tamary
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Patent number: 5087537Abstract: An apparatus and method for characterizing lithography imaging to quickly optimize a lithography process is described. The apparatus consists of two lithography masks for use with an optical stepper, ion-beam or x-ray lithography tool. The first mask is used for creating topography on the wafer substrate, and is patterned with groups of large elements arranged in orthogonal and angular directions. The second mask is used for defining a periodic pattern over the large elements. Preferably, the periodic pattern is in the same order of dimension as the critical element on the integrated circuit. A method is provided for characterizing lithography tools which do not have lithography masks such as an electron beam exposure tool.Type: GrantFiled: October 11, 1989Date of Patent: February 11, 1992Assignee: International Business Machines CorporationInventors: John F. Conway, Edward C. Fredericks, Giorgio G. Via
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Patent number: 5075196Abstract: A halftone dot image pattern is formed on a support comprising a paper base, a polyolefin layer on at least one side of said paper base in a coverage in the range of 5 to 40 g/m2, on the opposite side of the polyolefin layer a binder layer comprising a hydrophilic colloid binding agent and white titanium dioxide pigment particles having an average grain size in the range of 200 nm to 450 nm, said pigment particles being present in a coverage of at least 0.5 g per m2 up to 300% by wt of the total binder contents. The half tone dot image pattern is on the exterior side of the binder layer and is a halftone relief image pattern having at least color pigmented gelatin-containing layer, preferably three or four such layers of different colors; e.g., cyan, magenta, yellow and optionally black. The resultant halftone material has a controlled visual appearance; e.g., for color proofing purposes, especially with respect to dot gain.Type: GrantFiled: September 10, 1990Date of Patent: December 24, 1991Assignee: Agfa-Gevaert N.V.Inventors: Eddie R. Daems, Luc H. Leenders
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Patent number: 5073462Abstract: A photopolymerizable composition comprising(a) a monomeric componment which is a half acryloyl ester of bisphenol A epoxy monomer;(b) an initiating system activated by actinic radiation; and(c) a preformed macromolecular elastomeric polymer binder.Type: GrantFiled: April 9, 1990Date of Patent: December 17, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventor: Joseph E. Gervay
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Patent number: 5053300Abstract: A display such as meter panel and advertising display comprises a color image forming layer provided on a light-transmitting permanent support via a photo-polymerizable adhesive layer, and a photo-polymerizable image-receiving layer closely adhered to the color image forming layer. The display can be effectively produced by a process comprising the steps of forming a color image on a photo-polymerizable image-receiving layer of a photosensitive image-receiving material, placing it upon a photo-polymerizable adhesive layer formed on a light-transmitting permanent support to form a laminate so that the photo-polymerizable image-receiving layer and the photo-polymerizable adhesive layer face each other and then exposing the laminate to light so as to closely adhere the photo-polymerizable image-receiving layer and the photo-polymerizable adhesive layer to their adjacent layers, respectively, by the photo-polymerization.Type: GrantFiled: September 28, 1990Date of Patent: October 1, 1991Assignees: Fuji Photo Film Co., Ltd., Nippondenso Co., Ltd.Inventors: Takeshi Imai, Teruhiko Iwase, Toshio Koura, Minoru Maeda, Junichi Fujimori, Fumiaki Shinozaki
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Patent number: 5041356Abstract: An optical recording material comprising (I) a substrate, (II) a recording layer provided on said substrate, the recording layer consisting of light transmissive portions and light screening portions, and (III) a reflective metallic thin film layer provided on the recording layer; as well as a process therefor. The invention also includes an optical card comprising the optical recording material provided on a card substrate. In the cases of the optical recording material and the optical card, it is possible to readily carry out high density recording, the alternation of written informaton is difficult, and the written information can be read out on a basis of the difference in light reflectivity.Type: GrantFiled: August 28, 1989Date of Patent: August 20, 1991Assignee: Dai Nippon Insatsu Kabushiki KaishaInventors: Mitsuru Takeda, Wataru Kuramochi
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Patent number: 5019487Abstract: A master disc which is provided on one side with a reflective optical structure and a recording double-layer is exposed to a first laser beam which scans the optical structure and to a second laser beam which is controlled by the first beam, information bits in the form of bulges being formed in the recording layer due to exposure to the second beam, a metal skin being subsequently provided on the recording layer, in which metal skin the surface structure of the recording layer is copied and, finally, the matrix thus obtained being removed from the master disc.Type: GrantFiled: March 28, 1989Date of Patent: May 28, 1991Assignee: U.S. Philips CorporationInventors: Dirk J. Gravesteijn, Josephus M. Wijn, Johannes P. J. G. van Liempd
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Patent number: 5013621Abstract: A one-part coating composition for the backside of photographic prints and photographic prints so coated are described. The white coating is reflective, flexible, and water resistant.Type: GrantFiled: April 23, 1990Date of Patent: May 7, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventor: John F. Kistner
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Patent number: 5011754Abstract: A novel decorating pigment-transfer sheet 1 utilizing at least one photosensitive resin layer 3 and at least one pigment layer deposited thereon is provided for decorating heat-resistant articles 7 such as ceramics. The transfer sheet 1 comprises a water-absorbing substrate sheet 2; a water soluble paste layer 5 placed thereon; at least one and normally three photosensitive resin layers 3 placed thereon, each resin layer 3 having adhesive dot photo-images 3c produced by irradiating the resin layer 3 through a photographic dotted film 6; and at least one and normally three glaze-containing pigment layers (a, b, c) deposited on the adhesive dot images 3c of each resin layer 3. The three pigment layers (a,b,c) normally comprise each pigment of three primary colors, respectively. The heat-resistant article 7 is decorated by soaking the transfer sheet 1 in water, removing the substrate sheet 2, transferring the resin/pigment layers onto the article surface, followed by firing.Type: GrantFiled: April 24, 1990Date of Patent: April 30, 1991Assignee: INAX CorporationInventor: Masayuki Ono
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Patent number: 5011570Abstract: An identity card in which a first image recording layer comprising a colorant capable of absorbing light of a visible wavelength region provided on a first support and a second image recording layer comprising a colorant capable of absorbing light of an infrared wavelength region provided on a second support are adhered to each other in face-to-face contact to form a laminated structure highly resistant to alteration and/or forgery.Type: GrantFiled: November 13, 1989Date of Patent: April 30, 1991Assignee: Konica CorporationInventor: Keiji Ohbayashi
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Patent number: 5004659Abstract: An image receiving material suitable for image production by dye diffusion transfer processing controlled by the development of (an) image-wise exposed silver halide emulsion layer(s), wherein said image receiving material comprises a supported image receiving layer free from gelatin and containing (1) a cationic polymeric mordant, and (2) colloidal silica applied from an aqueous acidic colloidal sol having a pH of not more than 4, and containing hydrated silica in combination with a smaller amount of colloidal alumina, the amount of said colloidal material to said mordant in the image-receiving layer being in a weight ratio range from 1/5 to 1/2, and silica (SiO.sub.2) being present at a coverage of at least 0.5 g per m2.Type: GrantFiled: March 19, 1990Date of Patent: April 2, 1991Assignee: Agfa-Gevaert, N.V.Inventors: Leon L. Vermeulen, Robert S. Pauwels, Willy P. De Smedt, Ludovicus H. Vervloet
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Patent number: 5004660Abstract: The master disc contains a substrate plate which is preferably provided with an optically detectable guide track and a recording layer of polysulphone such as poly(1-butene sulphone) to which, preferably, a colorant is added and in which an optically readable information track is provided by patterned exposure, a pit or groove being formed in the polysulphone layer. A matrix is formed by applying a metal layer to the polysulphone layer by means of an electroless deposition process and then, applying a further metal layer by means of an electrodeposition process or applying a curable synthetic resin layer together with a metal disc, after which the synthetic resin is made to cure.Type: GrantFiled: October 17, 1989Date of Patent: April 2, 1991Assignee: U.S. Philips CorporationInventors: Maarten A. Van Andel, Johannes P. J. G. Van Liempd, Josephus M. Wijn
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Patent number: 4999266Abstract: The invention provides a photographic article having a protected image which comprisesa) a colored image disposed on a substrate; andb) a thin, transparent, colorless, thermoplastic adhesive composition directly on the surface of the image, wherein said adhesive is substantially non-tacky at room temperature, and comprises one or more thermoplastic polymers of copolymers capable of forming a flexible film, said adhesive being capable of being transferred directly to the image when the adhesive is first disposed on the release surface of a temporary support and said image and adhesive are laminated together under pressure at temperatures of between about 60.degree. C. and about 90.degree. C. and said temporary support is peeled away; andc) a non-self supporting antiblocking layer directly on said adhesive said antiblocking layer being transparent, colorless and comprises one or more organic polymers or copolymers, which coating does not cohesively block at about 50.degree. C. or less.Type: GrantFiled: December 6, 1989Date of Patent: March 12, 1991Assignee: Hoechst Celanese CorporationInventors: Stephan J. W. Platzer, Mehmet U. Yener, Stanley F. Wanat
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Patent number: 4992130Abstract: A laminate is produced by bonding together two hydrophobic thermoplastic resin sheets at least one of which carries at least one hydrophilic colloid layer containing a photograph and/or other information on its inner side, by the steps comprising:(1) treating such information-bearing hydrophilic colloid layer with an aqueous composition containing a self-cross-linkable reaction product of:(i) an epihalohydrin or an Alpha-dihalohydrin,(ii) a water-soluble polyamide, and(iii) a water-soluble polyamine containing at least two nitrogen atoms separated by at least three carbon atoms and optionally also by at least one oxygen or sulphur atom and having at least two hydrogen atoms attached to different nitrogen atoms,(2) drying thus treated layer, and(3) applying heat and pressure to bond the hydrophobic resin sheets together with such hydrophilic colloid layer sandwiched there-between.Type: GrantFiled: June 29, 1989Date of Patent: February 12, 1991Assignee: Agfa-GevaertInventors: Leon L. Vermeulen, Robert S. Pauwels
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Patent number: 4983478Abstract: A burn-in gumming composition for irradiated and developed offset printing plates comprises water and a water-soluble polymer or copolymer for protecting the plate surface during the burning-in step and during long-term storage. The polymer or copolymer used contains sulfonic acid groups and/or alkali metal sulfonate or ammonium sulfonate groups.Type: GrantFiled: September 27, 1989Date of Patent: January 8, 1991Assignee: Hoechst AktiengesellschaftInventors: Paul Stahlhofen, Dieter Mohr
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Patent number: 4978594Abstract: A process for forming a pattern on a substrate utilizing photolithographic techniques. In this process a layer of polymeric material containing a fluorine-containing compound is applied over the substrate and cured. A layer of photoresist material is applied over the polymeric material imagewise exposed and developed to reveal the image on the underlying polymeric material. Thereafter, the photoresist is silylated, and the structure is reactive ion etched to transfer the pattern to the underlying substrate. The fluorine component provides an underlying structure free of residue and cracking.Type: GrantFiled: October 17, 1988Date of Patent: December 18, 1990Assignee: International Business Machines CorporationInventors: James A. Bruce, Michael L. Kerbaugh, Ranee W. Kwong, Tanya N. Lee, Harold G. Linde, Harbans S. Sachdev
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Patent number: 4977061Abstract: A card, or a seal, with a picture includes a sheet with an image transferred to an image receiving layer coated on a transparent sheet in a heat-transferring manner, and a sheet-like base material to which the image receiving layer is to be attached with an adhesive layer.The card or the seal is made by a method which includes the steps of forming a mirror image of an original in the photosensitive layer of a photosensitive material superposing the sheet formed with the image on an image receiving layer of an image receiving sheet so as to superpose the photosensitive layer on and adhere the photosensitive layer to an image receiving layer of the image receiving sheet, and heat-developing and heat transferring the image in the photosensitive layer onto the image receiving layer.Type: GrantFiled: August 18, 1989Date of Patent: December 11, 1990Assignee: Fuji Photo Film Co., Ltd.Inventor: Yoshimi Suganuma
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Patent number: 4975347Abstract: Heat-stable structured layers can be manufactured through the application of radiation-sensitive soluble polymers in the form of a layer or film on a substrate, irradiation of the layer respectively film through negative patterns with actinic light or through the use of a light, electron, laser, or ion beam, removal of the non-irradiated layer respectively film parts and, if necessary, through subsequent tempering, in a cost-effective way in dimension-precise and high-quality form and in a single application process, when the polymers used are photopolymers in the form of addition reaction products of olefinic unsaturated monoisocyates with phenolformaldehyde resins. The layers produced with this method resist even high thermal and mechanical stress in immersion soldering processes and protect circuit surfaces effectively and permanently against moisture and corrosion; they are therefore suitable for use, in particular as solder resist and insulating layers in microelectronics.Type: GrantFiled: February 16, 1990Date of Patent: December 4, 1990Assignee: Siemens AktiengesellschaftInventors: Hellmut Ahne, Winfried Plundrich
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Patent number: 4965153Abstract: An optical recording medium for writing and reading information by use of a beam of light comprises an optical recording layer comprising a light-reflective layer and a light-absorptive layer having been preformatted in the form of grooves.Type: GrantFiled: April 16, 1987Date of Patent: October 23, 1990Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Imataki, Mizuho Hiraoka, Sachiko Ichikawa, Hitoshi Yoshino, Yoshihiro Ogawa
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Patent number: 4959285Abstract: Mixtures which can be cross-linked by photopolymerization and are based on soluble elastomeric block copolymers, photopolymerizable monomers which are compatible with these, photoinitiators and plasticizers contain, as the plasticizer, a chlorolakane of 8 to 40 carbon atoms which has a chlorine content of from 30 to 73% by weight.Type: GrantFiled: February 8, 1990Date of Patent: September 25, 1990Assignee: BASF AktiengesellschaftInventor: Gerhard Hoffmann
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Patent number: 4956215Abstract: This optical recording card includes optical recording medium which is formed with optical information patterns each of which has an optical reflective layer and information stored in the optical recording card can be read out in dependency on the difference in optical reflectivity of the optical information pattern. It is not economical that the optical reflective layer of the optical recording card is formed on a base sheet by etching or the like, wherein the base sheet is prepared in the form of a sheet. The optical recording card is produced by way of the steps of forming an optical reflective layer on a continuous base film having large area and then die cutting the assembly of optical reflective layer and base film into a large number of optical recording cards having required dimensions in such a state that the optical recording medium is held between a card base and a protective sheet.Type: GrantFiled: January 23, 1989Date of Patent: September 11, 1990Assignee: Kyodo Printing Co., Ltd.Inventors: Minoru Fujita, Yoichi Fukushima
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Patent number: 4935320Abstract: Coated material containing in successive order(a) a substrate,(b) a photostructurable negative-working thermostable adhesive and(c) a self-supporting photocrosslinkable polyimide film.This arrangement can be used for producing relief images by means of photolithhographic processes.Type: GrantFiled: August 12, 1988Date of Patent: June 19, 1990Assignee: Ciba-Geigy CorporationInventors: Ottmar Rohde, Armin Schaffner
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Patent number: 4929523Abstract: A light control sheet capable of scattering an incident light of particular incident angle is produced by a method composed of preparing a film of a composition containing at least two photopolymerizable components having different refractive indexes, irradiating on the film a light from a particular direction, and obtaining a cured film of the light control sheet product. Such other light control sheets as capable of scattering a plurality of incident lights each of particular incident angle are obtained by modification of the above-mentioned method.Type: GrantFiled: December 16, 1987Date of Patent: May 29, 1990Assignees: Sumitomo Chemical Company Limited, Nippon Sheet Glass Co., Ltd.Inventors: Shinichiro Kitayama, Teruho Adachi, Masahiro Ueda, Yuichi Aoki, Satoshi Shiiki, Akio Takigawa, Motoaki Yoshida, Naoya Imamura, Koichi Maeda, Hisayuki Kayanoki
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Patent number: 4908286Abstract: Image-receiving material for use in diffusion transfer reversal processing comprising a polyvinyl chloride resin support coated with a hydrophilic waterpermeable layer comprising a proteinaceous colloid and a water-dispersible ionogenic polyester-polyurethane wherein isocyanate groups still present in its structure have reacted with an ionogenic compound containing at least one active hydrogen atom and a carboxylate or sulphonate salt group. This material is useful for the production of tamper proof laminates for identification purposes.Type: GrantFiled: May 3, 1989Date of Patent: March 13, 1990Assignee: Agfa-Gevaert, N.V.Inventors: Ludovicus H. Vervloet, Willy P. De Smedt, Leon L. Vermeulen, Piet Kok
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Patent number: 4902594Abstract: A photoimaged article having a protected image composed of a colored image on a support; and a thin, transparent, flexible, nonself supporting, protective layer on the surface of the image. The layer is substantially nontacky at room temperature, and has at least a major amount based on the weight of the layer of one or more thermoplastic resins of a vinyl acetal, vinyl chloride, or acrylic polymer or copolymer having a Tg of from about 35.degree. C. to about 110.degree. C. The layer is capable of being adhesively transferred directly to the image when the layer is first applied on the release surface of a temporary support, and the image and protective layer are laminated together under pressure at temperatures of between about 60.degree. C. to about 180.degree. C. with subsequent removal of the temporary support. The side of said layer opposite to the image is free from additional layers. The adhesive layer is one which does no cohesively block at temperatures ofabout 50.degree. or less.Type: GrantFiled: October 21, 1988Date of Patent: February 20, 1990Assignee: Hoechst Celanese CorporationInventor: Stephan J. W. Platzer
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Patent number: 4902593Abstract: An image-receiving material suitable for image production by dye diffusion transfer processing controlled by the development of (an) image-wise exposed silver halide emulsion layer(s), wherein said image-receiving material contains a hydrophobic resin support coated with a subbing layer that is coated with an image-receiving layer containing gelatin in combination with a cationic polymeric mordant containing glycidyl groups that can react with active hydrogen atoms of gelatin, the weight ratio of said polymeric mordant to gelatin being 25:1 to 1:1 and the gelatin being present at a coverage of at least 0.1 g per m2, and wherein said subbing layer has been applied from an aqueous composition comprising a polyester-polyurethane wherein isocyanate groups still present in its structure have reacted with an ionomeric compound containing at least one active hydrogen atom and a carboxylate or sulphonate salt group.Type: GrantFiled: September 13, 1988Date of Patent: February 20, 1990Assignee: Agfa-Gevaert, N.V.Inventors: Leon L. Vermeulen, Ludovicus H. Vervloet, Willy P. De Smedt, Piet Kok
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Patent number: 4894110Abstract: Information is provided in a multilayer identification card by means of a laser beam. This information is recorded by irreversibly changing (blackening) transparent synthetic material. Synthetic materials which blacked at different intensity values are used for the individual card layers. By controlling the laser beam intensity, information can thus be recorded only in one layer or else simultaneously in several layers. If the layer arrangement, layer materials and recording parameters (intensity, writing width, etc.) are selected appropriately, images can be produced which change their appearance when the viewing angle is changed. The various visual effects which can thereby be obtained serve to distinguish the authenticity of the identification card.Type: GrantFiled: June 29, 1988Date of Patent: January 16, 1990Assignee: GAO Gesellschaft fur Automation und Organisation mbHInventors: Joseph Lass, Hansjurgen Merkle, Wolfgang Becker, Werner Herget, Erwin Lob
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Patent number: 4894303Abstract: The invention relates to high energy beam-sensitive glass articles exhibiting insensitivity and/or inertness to artinic radiation, i.e., glass articles which are darkened and/or colored within a thin surface layer of, e.g., about 0.1-3 .mu.m upon exposure to high energy beams, electron beams, and ion beams in particular, without a subsequent development step, and which need no fixing to stabilize the colored image, since both the recorded image and the glass article are sensitive to radiation in the spectral range of UV, and longer, wavelengths. More particularly, the instant invention is concerned with Ag+ ion-exchanged glass articles having base glass within alkali metal silicate composition fields containing at least one of the oxides of transition metals which have one to four d-electrons in an atomic state.Type: GrantFiled: June 1, 1987Date of Patent: January 16, 1990Assignee: Canyon Materials Research & EngineeringInventor: Che-Kuang Wu
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Patent number: 4891285Abstract: An imaged copy film comprising (a) a polymeric film substrate, (b) an image-receiving layer comprising a terpolymer of a vinyl halide, a vinyl ester of a saturated aliphatic carboxylic acid and a functional group-containing unsaturated termonomer, and (c) an electrostatic copying toner image layer. Toner adhesion is improved and the applied images exhibit superior resistance to abrasion and erasure.Type: GrantFiled: November 1, 1988Date of Patent: January 2, 1990Assignee: Imperial Chemical Industries PLCInventors: Darrin J. Page, Stuart C. Rennison
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Patent number: 4882245Abstract: A photocurable composition which is useful as a permanent resist in the manufacture of printed circuit boards and packages of such boards comprises a multifunctional epoxidized resin, a reactive diluent, a cationic photoinitiator and, optionally, an exposure indicator, a coating aid and a photosensitizer.Type: GrantFiled: June 12, 1987Date of Patent: November 21, 1989Assignee: International Business Machines CorporationInventors: Jeffrey D. Gelorme, Robert J. Cox, Sergio A. R. Gutierrez
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Patent number: 4879193Abstract: Disclosed are a light sensitive material and a lithographic printing plate made therefrom by silver complex diffusion transfer process ree from peeling of layer during printing which comprises a polyester film support made hydrophilic by coating with an organic copolymer as a support and at least one undercoat layer, a silver halide emulsion layer and an image receiving layer containing physical development nuclei layer provided on said support in succession, said undercoat layer contiguous to the support containing a polyfunctional epoxy compound having at least three epoxy groups in molecule.Type: GrantFiled: March 16, 1988Date of Patent: November 7, 1989Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Yoshikazu Takaya, Kazuo Yokoyama
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Patent number: 4871630Abstract: Disclosed is a process for reducing lithographic image size for integrated circuit manufacture. A mask of photosensitive material having an opening of a minimum size dictated by the limits of lithography is formed on a substrate. Reduction in the image size is achieved by establishing sidewalls to the interior vertical surfaces of the opening by depositing a conformal layer, followed by anisotropic etching. The dimension of the opening is reduced by the combined thickness of the two opposite insulator sidewalls.In a specific direct application of the disclosed process, a photomask/stencil having a pattern of openings of a minimum size smaller than possible by lighography, per se, is formed.Type: GrantFiled: July 31, 1987Date of Patent: October 3, 1989Assignee: International Business Machines CorporationInventors: Nicholas J. Giammarco, Alexander Gimpelson, George A. Kaplita, Alexander D. Lopata, Anthony F. Scaduto, Joseph F. Shepard
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Patent number: 4871631Abstract: A flexographic printing relief-plate, which has a relief layer (P), an interlayer (Z) and a base layer (U), is provided with a double-sided adhesive sheet (W). The double-sided adhesive sheet (W) transmits actinic light and is firmly bonded to the base layer (U) on one side. On the opposing side, the adhesive sheet (W) has an adhesive force of from 1 to 6 N/25 mm. This force is less than the adhesive force on the side bonded to the base layer (U). The adhesive sheet (W) permits the flexographic relief printing plate to be repeatedly adhered to and removed from the printing cylinder without damaging the plate.Type: GrantFiled: October 21, 1987Date of Patent: October 3, 1989Assignee: BASF AktiengesellschaftInventors: Hartwig Pieper, Reiner Michels, Heinz-Ulrich Werther
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Patent number: 4863819Abstract: A data card comprising a self-supporting, wallet size plastic card base upon which is disposed a film substrate layer, a highly reflective layer and an optical storage layer which is a selected photosensitive layer which has been exposed at an actinic wavelength and developed to be substantially opaque over a portion of its extent, except for an imagewise exposure pattern of clear and partially clear data marks revealing to varying extends reflectivity in the underlying reflective layer. Data spots may have one of four different reflectivities thereby representing a quadrinary digit 0, 1, 2 or 3 replacing two binary digits. The reflective layer is matched to the selected optical storage layer so that the reflective layer is highly reflective at a read beam wavelength in the red or near infrared and less reflective at actinic wavelengths either in the blue/green range or in the ultraviolet.Type: GrantFiled: June 22, 1988Date of Patent: September 5, 1989Assignee: Drexler Technology CorporationInventors: Jerome Drexler, Eric W. Bouldin
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Patent number: 4855199Abstract: Photopatternable silicone polyamic acid can be spun onto a substrate and thereafter used in combination with a photoresist as an antireflective coating or as a patterned silicone polyimide. The silicone polyamic acid can be used with an absorbing dye, or it can be tinted with an organic dye to provide color filters when applied on a transparent substrate.Type: GrantFiled: August 8, 1988Date of Patent: August 8, 1989Assignee: General Electric CompanyInventors: Donald A. Bolon, Victoria J. Eddy, John E. Hallgren
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Patent number: 4845000Abstract: A radiation-sensitive carrier body directly utilized as a stamper has a glass substrate, a first highly adhesive layer securely adhered to the substrate, a radiation-sensitive layer which discharges a gas component upon being irradiated with a laser beam and which locally forms a protuberance due to the absorbed energy, a second highly adhesive layer securely adhered to the specific material of the radiation-sensitive layer and which deforms in accordance with deformation of the layer, and a metal layer which has a high releasability to allow easy separation from a optical disk substrate material such as an acrylic material when the carrier body is used as a stamper substrate for manufacturing optical disks. A protuberance formed on the carrier body such as a continuous spiral protuberance allows formation of a corresponding spiral groove in the acrylic material, serving as a pre-track into which desired information will be digitally written by a user.Type: GrantFiled: December 4, 1986Date of Patent: July 4, 1989Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventors: Yoshikatsu Takeoka, Nobuaki Yasuda, Akio Hori, Norio Ozawa
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Patent number: 4842988Abstract: A presensitized printing plate suitable for waterless planographic printing is disclosed, which comprises a layer support, a radiation-sensitive layer, an outer, ink-repellent, cross-linked silicone elastomer layer, and an intermediate layer of amorphous silicic acid, by which the adhesion of the silicone elastomer layer to the radiation-sensitive layer is improved. The adhesive layer is physiologically safe and effects a good anchoring of the silicone elastomer layer. The process of making and using the presensitized printing plate are also disclosed.Type: GrantFiled: August 20, 1987Date of Patent: June 27, 1989Assignee: Hoechst AktiengesellschaftInventors: Heinz Herrmann, Hans-Joachim Schlosser
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Patent number: 4816362Abstract: An optical recording material comprising (I) a substrate, (II) a recording layer provided on said substrate, the recording layer consisting of light transmissive portions and light screening portions, and (III) a reflective metallic thin film layer provided on the recording layer; as well as a process therefor. The invention also includes an optical card comprising the optical recording material provided on a card substrate. In the cases of the optical recording material and the optical card, it is possible to readily carry out high density recording, the alternation of written information is difficult, and the written information can be read out on a basis of the difference in light reflectivity.Type: GrantFiled: March 31, 1987Date of Patent: March 28, 1989Assignee: Dai Nippon Insatsu Kabushiki KaishaInventors: Mitsuru Takeda, Wataru Kuramochi
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Patent number: 4786569Abstract: Coated material containing in successive order(a) a substrate,(b) a photostructurable negative-working thermostable adhesive and(c) a self-supporting photocrosslinkable polyimide film. This arrangement can be used for producing relief images by means of photolithographic processes.Type: GrantFiled: August 27, 1986Date of Patent: November 22, 1988Assignee: Ciba-Geigy CorporationInventors: Ottmar Rohde, Armin Schaffner
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Patent number: 4774157Abstract: This invention resides in a counter-current diffusion method for the formation of a metallic interlayer within a matrix, for example, a polymeric matrix, by controlling the permeability of the matrix, the permeability preferably being controlled by controlling matrix swelling.Type: GrantFiled: May 19, 1987Date of Patent: September 27, 1988Assignee: E. I. Du Pont De Nemours and CompanyInventor: Lewis E. Manring
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Patent number: 4770961Abstract: Disclosed is a light sensitive material for lithographic printing plate which comprises a support and at least a silver halide emulsion layer and a surface physical development nuclei layer provided on said support wherein said silver halide emulsion layer contains at least one of the sensitizing dyes represented by the following general formulas (I), (II), (III), (IV) and (V):General formula (I) ##STR1## General formula (II) ##STR2## General formula (III) ##STR3## General formula (IV) ##STR4##Type: GrantFiled: October 30, 1986Date of Patent: September 13, 1988Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Akira Tanaka, Eiji Kanada, Yoshikazu Takaya, Masahiko Saikawa, Hidetoshi Miura
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Patent number: 4762759Abstract: An image-receiving material adapted for silver complex diffusion transfer processing and for forming a laminate, e.g. serving as an identification document, wherein said material comprises a hydrophobic resin support or resin-coated paper support directly coated on a resin surface thereof with a DTR-image receiving layer containing developing nuclei in a binder medium and comprising in percent by weight on its total weight the following ingredients:2% to 45% of gelatin,25% to 85% of colloidal silica,1.0% to 50% of a copolymer consisting of copolymerized ethylene and an alpha,beta-unsaturated carboxylic acid monomer in free acid or salt form, wherein the polymerized ethylene content is not lower than 80% by weight, and0.2% to 35% of a siloxane forming a reaction product through its siloxane group with the colloidal silica, the dry coverage of the image-receiving layer being in the range of 1 g to 15 g per m2.Type: GrantFiled: November 7, 1986Date of Patent: August 9, 1988Assignee: AGFA-Gevaert N.V.Inventors: Leon L. Vermeulen, Ludovicus H. Vervloet, Willy P. De Smedt, Piet Kok
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Patent number: 4735878Abstract: An information recording medium includes a substrate having first and second sides. A layer of photoresist is deposited on the first side of the substrate. This layer of photoresist has a selected thickness and defines an area of openings therein such that the first side of the substrate is exposed at the openings, the openings being distributed in a pattern indicative of selected stored information. A reflecting layer is deposited on the photoresist layer and on the first side of the substrate at the openings. Both the substrate and the layer of photoresist are adapted to transmit the reading beam such that a portion of the reading beam incident on the second side of the substrate is reflected out of the substrate by the reflecting layer, both in a first region comprising the openings and in a second region between the openings.Type: GrantFiled: August 28, 1986Date of Patent: April 5, 1988Assignee: Quixote CorporationInventors: Alan B. Hamersley, Michael W. Goff, Vinai K. Thummalapally, Thomas M. Whitworth, Ramchandra R. Nomula
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Patent number: 4732829Abstract: Improved printing with polymers is achieved by interposing a liquid layer conforming to rough substrate surfaces and possibly exhibiting different characteristics from an outer surface polymer layer. This is particularly advantageous in printed wiring board (PWB) manufacture requiring solder mask coating. Thus, a two layer composite polymer coating is provided. One inner adhesive photopolymer layer is applied to the PWB in the liquid state, displacing air from PWB surface. The outer layer of the composite therefore can be epoxy, dry film or liquid polymer. Dry film thus carried on a thin plastic sheet may be overlaminated onto a liquid inner layer already on the substrate, without the need for a vacuum laminator to eliminate bubbles or a plasticizing heat step to conform the dry film to the surface.Type: GrantFiled: November 19, 1984Date of Patent: March 22, 1988Inventor: Donald Sullivan
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Patent number: 4719169Abstract: The invention provides a method for protecting an image which comprises providing a colored image on a substrate and either:A. Applying an antiblocking layer to a release surface of a temporary support; bonding a thermoplastic adhesive layer to said antiblocking layer; laminating said applied support to said colored image via said adhesive; and peeling away said temporary support from said antiblocking layer; orB. applying a thermoplastic adhesive layer to a release surface of a first temporary support; applying an antiblocking layer onto a release surface of a second temporary support, laminating said adhesive onto said colored image and peeling away said first temporary support; and laminating said antiblocking layer onto said adhesive layer and peeling away said second temporary support;wherein said adhesive layer is substantially nontacky at room temperature, is laminated at temperatures between about 60.degree. C. and 90.degree. C.Type: GrantFiled: April 18, 1986Date of Patent: January 12, 1988Assignee: Hoechst Celanese CorporationInventors: Stephan J. W. Platzer, Mehmet U. Yener, Stanley F. Wanat
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Patent number: 4673626Abstract: An optical recording material comprising (I) a substrate, (II) a recording layer provided on said substrate, the recording layer consisting of light transmissive portions and light screening portions, and (III) a reflective metallic thin film layer provided on the recording layer; as well as a process therefor. The invention also includes an optical card comprising the optical recording material provided on a card substrate. In the cases of the optical recording material and the optical card, it is possible to readily carry out high density recording, the alternation of written information is difficult, and the written information can be read out on a basis of the difference in light reflectivity.Type: GrantFiled: March 27, 1985Date of Patent: June 16, 1987Assignee: Dai Nippon Insatsu Kabushiki KaishaInventors: Mitsuru Takeda, Wataru Kuramochi
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Patent number: 4670364Abstract: The invention provides a master for use in image transfer by contact printing onto a transparent electrophotographic (TEP) film, which comprises an electrically insulating substrate having a planar surface which carries image elements deposited thereon; and a thin transparent insulating layer covering said planar surface and said image elements. The surface of the thin transparent insulating material is preferably profiled so that it comprises a base level and raised portions extending above said base level, the area of the raised portions being small compared to the total surface area of the transparent insulating layer. A thin transparent electrode may be incorporated between the substrate and the thin transparent insulating layer.Methods of forming such a master and of contact printing with it are also disclosed.Type: GrantFiled: May 31, 1985Date of Patent: June 2, 1987Assignee: Comtech Research Unit LimitedInventor: Victor C. Humberstone