Immersion, Partial Immersion, Spraying, Or Spin Coating Utilized (e.g., Dipping, Etc.) Patents (Class 427/498)
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Patent number: 6413630Abstract: A decorative film having an excellent decorative effect, excellent three-dimensional curvature emulating properties, three-dimensional curvature formability, long-term weather resistance and stain resistance. The decorative film comprises one or more transparent layers and a decorative metal layer. The transparent layer has an adhered side for being adhered to a substrate. The transparent layer comprises a copolymer of a tetrafluoroethylene, a hexafluoropropylene and a vinylidene fluoride. The decorative metal layer is on the adhered side of the transparent layer. A substrate can be bonded to the metal layer of the decorative film. The substrate can be a complex three-dimensional shaped substrate. The substrate can also be an injection molded substrate. An adhesive can be disposed on the metal layer of the decorative film, and the adhesive layer can be disposed between the metal layer and the substrate.Type: GrantFiled: November 4, 1999Date of Patent: July 2, 2002Assignee: 3M Innovative Properties CompanyInventor: Akihiko Nakayama
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Publication number: 20020064604Abstract: A spin-on-glass delivery system has the invention's capacitive sensor to detect gas bubbles in a SOG tube. A SOG bottle is provided. The SOG bottle contains SOG. A N2 gas supply is connected to the pressure tank by a pressure tube wherein the N2 gas supply pressurizes the inside of the SOG bottle with N2 gas. The SOG bottle is connected to SOG tube. In a key feature, a capacitive sensor is mounted on the SOG tube. The capacitive sensor detects gas bubbles in the SOG flowing through the SOG tube. The SOG tube is connected to a nozzle in a SOG tool. The SOG flows through the nozzle over to a wafer. A key point of the invention is to use a capacitive sensor to detect gas bubbles in spin-on-glass flowing through a SOG tube. This is a new, unsuggested use for the capacitive sensor. The prior art bubble sensors are optical sensors.Type: ApplicationFiled: November 30, 2000Publication date: May 30, 2002Applicant: Chartered Semiconductor Manufacturing LtdInventors: Soon Chye Chan, Bak Hong Chia
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Patent number: 6387379Abstract: A method for modifying the surface of a material adapted for contact with tissue of a human or non-human animal to impart biofunctional, bioactive or biomimetic properties to the surface comprising: (a) exposing the surface to a solution comprising (1) an ethylenically unsaturated monomer or mixture thereof capable, via the ethylenic unsaturation, of gamma irradiation or electron beam induced polymerization, and (2) at least one biofunctional agent; and (b) irradiating the surface with gamma or electron beam irradiation in the presence of the solution to thereby form on the surface a graft polymerized coating, the coating having physically entrapped therein or chemically bonded thereto molecules of the at least one biofunctional agent which imparts biofunctional or biomimetic properties to the surface; wherein the gamma or electron beam irradiation induced polymerization is conducted under one of the following conditions: A. (i) monomer concentration in the solution in the range of from about 0.Type: GrantFiled: February 28, 1994Date of Patent: May 14, 2002Assignee: University of FloridaInventors: Eugene P. Goldberg, Ali Yahiaoui, Khalid Mentak, Theresa Rivero Erickson, James Seeger
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Patent number: 6358570Abstract: The present invention is the formation of solid polymer layers under vacuum. More specifically, the present invention is the use of “standard” polymer layer-making equipment that is generally used in an atmospheric environment in a vacuum, and degassing the liquid material prior to injection into the vacuum. Additional layers of polymer or non-polymer may be vacuum deposited onto solid polymer layers. Formation of polymer layers under a vacuum improves material and surface characteristics, and subsequent quality of bonding to additional layers. Further advantages include use of less to no photoinitiator for curing, faster curing, fewer impurities in the polymer electrolyte, as well as improvement in material properties including no trapped gas resulting in greater density, and reduced material wetting angle that facilitates spreading of the material and provides a smoother finished surface.Type: GrantFiled: March 31, 1999Date of Patent: March 19, 2002Assignee: Battelle Memorial InstituteInventor: John D. Affinito
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Patent number: 6358571Abstract: A method for coating a metal substrate in which a coating film is applied reliably and strongly on a surface processed film on a metal matrix material. The coating method for the metal substrate includes an immersion step of immersing a surface-processed metal substrate in a solution mainly composed of an amorphous-like fluorine resin, a polymerization step of polymerizing the amorphous-like fluorine resin and the surface processed metal substrate, and a step of forming a coating film on a surface-processed surface of the metal substrate.Type: GrantFiled: September 24, 1999Date of Patent: March 19, 2002Assignee: Denka Himaku, Inc.Inventor: Yasuichi Akimoto
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Patent number: 6355310Abstract: A substantially water-free, water-washable, energy-curable composition includes an epoxy oligomer and/or urethane oligomer having at least two ethylenically unsaturated moieties, at least one alkoxylated polyol monomer having at least two ethylenically unsaturated moieties and capable of being copolymerized with the oligomer, and a surface active agent capable of being integrated into the molecular structure of the cured polymer and further capable of rendering the uncured composition dispersible in water. Optionally, the composition can contain a photoinitiator. The composition is self-dispersible in water and is especially suitable for use as a coating material for a printing screen.Type: GrantFiled: June 22, 2000Date of Patent: March 12, 2002Assignee: Henkel CorporationInventor: Marie-Esther Saint Victor
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Publication number: 20020014415Abstract: The present invention provides methods for fabricating a sensor on a substrate having a pair of electrodes. The methods are especially amenable to broad variations amongst individual sensor on a single substrate. The intra-sensor variation within the array can be achieved in various fashions. The method provide intra-sensor variation using quantitative and qualitative differences in each sensor.Type: ApplicationFiled: May 2, 2001Publication date: February 7, 2002Inventors: Robert Nakayama, Richie Payne, Steven Sunshine, Beth Munoz, Jing Li, Chang-Meng Hsiung
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Publication number: 20020006474Abstract: A method and apparatus is provided for more efficiently application of photoresist to a wafer surface. One aspect of the method comprises applying solvent to the wafer and spinning it to coat the entire wafer surface prior to the application of photoresist. This reduces surface tension on the wafer and reduces the amount of resist required to achieve a high quality film. The apparatus comprises adding a third solenoid and nozzle to the coating unit to accommodate the application of solvent to the center of the wafer surface. The method also describes incorporating a new solvent comprising Di-Acetone Alcohol, which is a low-pressure solvent, providing extended process latitudes and reduced material expenditures.Type: ApplicationFiled: August 29, 2001Publication date: January 17, 2002Applicant: Micron Technology, Inc.Inventor: John Whitman
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Publication number: 20020006473Abstract: A method and apparatus is provided for more efficiently application of photoresist to a wafer surface. One aspect of the method comprises applying solvent to the wafer and spinning it to coat the entire wafer surface prior to the application of photoresist. This reduces surface tension on the wafer and reduces the amount of resist required to achieve a high quality film. The apparatus comprises adding a third solenoid and nozzle to the coating unit to accommodate the application of solvent to the center of the wafer surface. The method also describes incorporating a new solvent comprising Di-Acetone Alcohol, which is a low-pressure solvent, providing extended process latitudes and reduced material expenditures.Type: ApplicationFiled: August 29, 2001Publication date: January 17, 2002Applicant: Micron Technology, Inc.Inventor: John Whitman
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Publication number: 20020000424Abstract: A substrate with a coating film formed thereon is covered with a cover member on the side of its principal surface. A solvent is supplied from the top of the cover member through a plurality of supply holes formed at predetermined positions of the cover member so that an unnecessary film portion of the coating film in a processed region is dissolved by the solvent and removed. In an unprocessed region except the processed region, a gap between an inner surface of the cover member and the surface of the substrate has a size such that temperature distribution is not caused in the coating film formed on the surface of the substrate under the influence of heat transfer from the cover member.Type: ApplicationFiled: August 24, 2001Publication date: January 3, 2002Applicant: HOYA CORPORATIONInventor: Mitsuaki Hata
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Patent number: 6316044Abstract: Antimicrobial activity is imparted to the surface(s) of an apparatus or article by polymerizing tert-butylaminoethyl methacrylate in the presence of the apparatus or article by which adhesion of the polymer to the surface(s) is achieved. In a preferred embodiment of the invention the antimicrobial monomer is graft polymerized on the surface(s).Type: GrantFiled: March 17, 2000Date of Patent: November 13, 2001Assignee: Degussa-Huels AktiengesellschaftInventors: Peter Ottersbach, Frank Hill, Christine Anders
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Patent number: 6245392Abstract: The invention provides a mobile coating and curing apparatus for applying and curing an ultraviolet or an electron beam curable material. The apparatus includes a housing containing a first compartment containing a coater, a second compartment containing an ultraviolet or electron beam curing energy source, a partition wall between the first and second compartments and a means for moving the housing across a surface to be coated. The apparatus provides a means for coating surfaces which are generally too large to be coated by stationary coating and curing devices.Type: GrantFiled: August 27, 1999Date of Patent: June 12, 2001Inventor: Stephen J. Hillenbrand
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Patent number: 6214422Abstract: A hybrid film, comprising a first polymer film having a plasma-treated surface and a second polymer film having first and second surfaces, with the first surface of the second polymer film being disposed along the first plasma-treated surface of the first polymer film, has superior thermal and mechanical properties that improve performance in a number of applications, including food packaging, thin film metallized and foil capacitors, metal evaporated magnetic tapes, flexible electrical cables, and decorative and optically variable films. One or more metal layers may be deposited on either the plasma-treated surface of the substrate and/or the radiation-cured acrylate polymer A ceramic layer may be deposited on the radiation-cured acrylate polymer to provide an oxygen and moisture barrier film. The hybrid film is produced using a high speed, vacuum polymer deposition process that is capable of forming thin, uniform, high temperature, cross-liked acrylate polymers on specific thermoplastic or thermoset films.Type: GrantFiled: October 8, 1998Date of Patent: April 10, 2001Assignee: Sigma Laboratories of Arizona, Inc.Inventor: Angelo Yializis
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Patent number: 6203860Abstract: A thin film of a perovskite-type transparent potassium niobate formed on an amorphous substrate. The thin film of a perovskite-type potassium niobate has excellent transparency, can be (110) oriented, and can be used for optical devices, such as an optical waveguide, a second harmonic generating device, and an optical switching device.Type: GrantFiled: August 4, 1998Date of Patent: March 20, 2001Assignee: Yamamura Glass Co., Ltd.Inventors: Hideki Kawai, Hidekazu Hashima, Sadao Nakajima
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Patent number: 6191183Abstract: The instant invention pertains to a composition that can form silica thin films, wherein said composition performs well as a substrate planarizing coating when applied to a substrate and can be converted by exposure to high-energy radiation into silica thin film with an excellent electrical insulating performance. The composition for the formation of silica thin films comprises (A) a hydrogen silsesquioxane resin that contains at least 45 weight % hydrogen silsesquioxane resin with a molecular weight no greater than 1,500; and (B) solvent. A silica thin film is produced by evaporating the solvent (B), and then converting at least a portion of the hydrogen silsesquioxane resin (A) to silica by exposing the surface of the said substrate to high-energy radiation. The preferred substrate is a semiconductor substrate having at least one electrically conductive layer.Type: GrantFiled: October 5, 1999Date of Patent: February 20, 2001Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Akihiko Kobayashi, Katsutoshi Mine, Takashi Nakamura, Motoshi Sasaki, Kiyotaka Sawa
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Patent number: 6187389Abstract: This invention relates to an economical coating composition for porous substrates that provides extremely glossy surfaces, is capable of supporting holographic images, provides good oxygen barrier properties as well as good oil, grease, solvent and water resistance. Said coatings on paper substrates are printable, biodegradable, recyclable, and repulpable. They are also suitable for use in conjunction with food products. This invention also relates to a process for applying said coatings onto porous substrates as well as a process for the economical production of inexpensive holographic images on substrates such as paper and cardboard containers.Type: GrantFiled: May 3, 2000Date of Patent: February 13, 2001Assignee: A*Ware Technologies, L.C.Inventors: Derric T. Overcash, Richard C. Wallace
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Patent number: 6146717Abstract: The invention comprises a process for impregnating components with polymerizable impregnants which are liquid at room temperature or can be liquefied by heating and are cured by combined use of heat and high-energy radiation, wherein the components are impregnated at ambient temperature or in a preheated state and, after impregnation, are heated in the impregnant until partial gelation occurs, are treated with high-energy radiation before full curing and are then fully cured by thermal means.Type: GrantFiled: June 23, 1999Date of Patent: November 14, 2000Assignee: Schenectady International, Inc.Inventors: Klaus-Wilhelm Lienert, Rainer Blum, Gunter Hegemann, Manfred Eichhorst
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Patent number: 6146711Abstract: A wear layer is applied to a flooring material to yield a product having superior properties. The wear layer is applied to the flooring material using a coating composition comprising (i) a polyvinyl chloride (PVC) resin, (ii) an acrylic or methacrylic compound and (iii) a radiation-reactive urethane oligomer, which composition is substantially or completely free of internal or external plasticizers, heating to heat-cure the coating composition and irradiating the composition to radiation-cure the coating composition.Type: GrantFiled: August 5, 1997Date of Patent: November 14, 2000Assignee: Domco Industries LtdInventors: Jean-Fran.cedilla.ois Courtoy, Claude Charest
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Patent number: 6071618Abstract: A polymeric film includes at least one irradiated water soluble layer. A process for making a water soluble film includes the steps of extruding a water soluble film; and irradiating the water soluble film. Using electron beam irradiation, a water soluble film's solubility rate can be increased.Type: GrantFiled: October 11, 1996Date of Patent: June 6, 2000Assignee: Cryovac, Inc.Inventors: Philip H. Cook, Jr., Tina V. Lorenzo Moore
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Patent number: 6042894Abstract: An isotropically electroconductive resin film material produced by sticking electroconductive particles to a sticking layer formed on a support and fixing therein, and filling a film-forming resin incompatible with the sticking material among the electroconductive particles, has electroconductivity only in the film thickness direction via the electroconductive particles uniformly dispersed in the plane direction, and is suitable for electrically connecting oppositely placed circuits and fine electrodes of a plurality of electronic parts, and for testing electronic parts.Type: GrantFiled: July 9, 1997Date of Patent: March 28, 2000Assignee: Hitachi Chemical Company, Ltd.Inventors: Yasushi Goto, Isao Tsukagoshi, Tomohisa Ohta
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Patent number: 5993896Abstract: When enveloping an electrical or an optical conductor, the method applies a radiation-reactive resin having photoinitiators with an absorption maximum onto the conductor and then the resin is cured by subjecting it to a radiation of a wavelength preferably in the wavelength range for the absorption maximum of the photoinitiators. The apparatus for enveloping includes an arrangement for applying the resin followed by a radiation source for applying the radiation of the desired wavelength that falls into the range of the absorption maximum of the photoinitiators of the resin.Type: GrantFiled: July 22, 1997Date of Patent: November 30, 1999Assignee: Siemens AktiengesellschaftInventors: Siegfried Unterberger, Frederic Zapf
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Patent number: 5994110Abstract: Compounds which possess a complementary structure to a desired molecule, such as a biomolecule, in particular polymeric or oligomeric compounds, which are useful as in vivo or in vitro diagnostic and therapeutic agents are provided. Also, various methods for producing such compounds are provided. These polymeric or oligomeric compounds are useful in particular as antimicrobial agents, receptor, hormone or enzyme agonists and antagonists.Type: GrantFiled: September 2, 1998Date of Patent: November 30, 1999Inventors: Klaus Mosbach, Peter A. G. Cormack, Olof Ramstrom, Karsten Haupt
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Patent number: 5968605Abstract: Electron beam radiation curing of inks on game balls, golf balls and the like is disclosed. Production inks, logo inks and methods for forming production prints and logos on golf balls, game balls and the like are disclosed. To form an electron beam radiation curable water-insoluble production ink, at least an adhesion promoting component is added to an ink base.Type: GrantFiled: February 27, 1997Date of Patent: October 19, 1999Assignee: Acushnet CompanyInventor: Mitchell E. Lutz
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Patent number: 5932297Abstract: The present invention provides a method for forming a coating film, which comprises ejecting a curable coating composition from a spray gun, spray-coating the ejected composition while applying thereto an active energy beam, and heat-curing the resulting coating film, wherein the curable coating composition contains an epoxy group-containing resin (A) and a photo-induced cationic polymerization initiator (B).Type: GrantFiled: August 4, 1997Date of Patent: August 3, 1999Assignee: Kansai Paint Co., Ltd.Inventors: Tadayoshi Tatsuno, Toru Hayase
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Patent number: 5783260Abstract: A thin-film forming method comprising an uncured-layer forming step in which a mixed composition containing an organic polymerizing agent curable composition and a silicone polymerizing curable composition is prepared to form an uncured layer consisting of this mixed composition on a resin substrate; a solvent removing step in which the solvent in the uncured layer is removed; a first polymerization curing step in which the organic polymerizing curable composition in the uncured layer is polymerized; and a second polymerization curing step in which the silicone polymerizing curable composition in the uncured layer is polymerized. The thin-film forming method can comprise formation of the uncured layer on a resin substrate through the intermediation of a primer layer or formation of an uncured underlayer and uncured top layer followed by separate underlayer polymerization and top layer polymerization curing steps.Type: GrantFiled: July 25, 1996Date of Patent: July 21, 1998Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Yoshifumi Kato, Yoshifumi Fujita, Atsushi Hozumi, Akiteru Nishio
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Patent number: 5759636Abstract: A method for forming electrographic imaging elements comprising a uniform dielectric layer is disclosed. The method comprises coating a conductive coating composition containing polymerizable precursors onto a base, curing the composition to form a conductive layer, and coating a dielectric layer on top of the conductive layer. The elements can be used to produce images have higher image density, reduced background, reduced grain, reduced mottle, reduced overtoning, and greater small-scale uniformity than comparable images formed on electrographic imaging elements produced by other methods. The elements are particularly useful for forming large size colored images, such as are required for posters, displays, other indoor advertising.Type: GrantFiled: December 18, 1996Date of Patent: June 2, 1998Assignee: Rexam Graphics, Inc.Inventors: Dene Harvey Taylor, Everett Wyman Bennett, Richard Scott Himmelwright, Douglas Allan Cahill, Weitong Shi
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Patent number: 5750206Abstract: This invention relates to a new technique for preparing metal devices such as guidewires for the subsequent attachment of hydrophilic coatings. The invention also relates to guidewires and other devices made according to that method.In one embodiment of the method of this invention, a hydrocarbon residue undercoat is applied to a metal guidewire core by plasma deposition. A photoactive hydrophilic polymer is then deposited on the hydrocarbon residue coating and activated by ultraviolet light. The hydrocarbon residue coating acts as a tie layer between the hydrophilic polymer and the metal guidewire core apparently by providing C--C bonds for the covalent linking of the coating material to the tie layer. The resulting article of this invention is a guidewire having the maneuverability of a metal guidewire and the biocompatibility of a lubricious, hydrophilic polymer.Type: GrantFiled: April 27, 1995Date of Patent: May 12, 1998Assignee: Target Therapeutics, Inc.Inventors: Robert Hergenrother, Uriel Hiram Chee, Laurent Schaller
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Patent number: 5738902Abstract: The biocompatibility of polymeric and metallic articles used in contact with blood can be substantially improved by coating the articles as described. The coating materials are triblock copolymers of the polylactone-polysiloxane-polylactone type. Optimum biocompatibility is provided by a coating of optimum surface concentration. Porous membranes can be coated as described, providing improved biocompatibility of blood oxygenators, hemodialyzers and the like.Type: GrantFiled: October 10, 1996Date of Patent: April 14, 1998Assignee: COBE Laboratories, Inc.Inventors: Lloyd Forrestal, Marc Voorhees, Harold Fisher
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In-situ coat, bake and cure of dielectric material processing system for semiconductor manufacturing
Patent number: 5705232Abstract: This is a system and method of in-situ coating, baking and curing of dielectric material. The system may include: dispensing apparatus for dispensing spin-on material; a lamp module 50; a window 54 connected to the lamp module 50; an environmental control chamber 56 connected to the window 54; an access gate 60 for wafers 58 in the environmental control chamber 56; a spin chuck 62 inside the environmental control chamber 56; and an exhaust pipe 64 connected to the environmental control chamber 56. The lamp module 50 may contains infra red and ultra violet lamps. In addition, the coating chamber may process dielectric material such as spin-on glass, silicon dioxide and various other spin-on material.Type: GrantFiled: September 20, 1994Date of Patent: January 6, 1998Assignee: Texas Instruments IncorporatedInventors: Ming Hwang, Toyotaro Horiuchi, Peter Ying, Jing Shu -
Patent number: 5698192Abstract: A method for modifying an ocular implant polymer surface by the gamma-irradiation induced polymerization thereon of N-vinylpyrrolidone, 2-hydroxyethylmethacrylate or a mixture thereof while maintaining the following conditions:(a) monomer concentration in the range of from about 0.1% to about 50%, by weight;(b) total gamma dose in the range of from about 0.001 to less than about 0.50 Mrad; and(c) gamma dose rate in the range of from above about 2,500 to about 10.sup.8 rads/minute.Type: GrantFiled: September 25, 1996Date of Patent: December 16, 1997Assignee: University of FloridaInventor: Eugene P. Goldberg
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Patent number: 5616366Abstract: In a new process for making an electrode current collector assembly, an electrode composition is mixed with a volatile casting solvent and is coated onto a substrate. Then, the coated substrate is heated to drive off a major portion of the volatile casting solvent. Next, force is applied on an external surface of the coating and directed toward the substrate so as to compact the coating and reduce the volume of pore spaces in the coating. An electrolyte composition may be applied to the compacted electrode composition either before or after curing. The electrode and electrolyte compositions are each cured. In a final step, a counter-electrode layer is applied onto the electrolyte composition to form a cell assembly.Type: GrantFiled: January 23, 1996Date of Patent: April 1, 1997Assignee: Valence Technology, Inc.Inventors: Ib I. Olsen, Gert L. Jensen
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Patent number: 5582876Abstract: An apparatus for producing an object using stereography is disclosed. The apparatus has a bath of liquid material in a container, the bath having a free surface. A support in the container supports and positions the object relative to the surface. A means for applying electromagnetic radiation solidifies a layer having solidified sections of the material. A wiper extends across the surface in a first direction. The wiper is at least partly formed of a flexible material and has a substantially horizontal lower edge, and it is positioned below the free surface of the bath in a working position. Displacement means displaces the wiper in the working position in a second direction substantially transversely to the first direction to move a portion of the liquid material in the bath. The lower edge of the wiper is flexibly yielding so as to apply a thin film of liquid material on a surface of the solidified layer and liquid material between solidified sections when displacing the wiper in the second direction.Type: GrantFiled: December 16, 1994Date of Patent: December 10, 1996Assignee: EOS GmbH Optical SystemsInventors: Hans J. Langer, Johann Oberhofer
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Patent number: 5571569Abstract: A thin-film forming method comprising an uncured-layer forming step in which a mixed composition containing an organic polymerizing agent curable composition and a silicone polymerizing curable composition is prepared to form an uncured layer consisting of this mixed composition on a resin substrate; a solvent removing step in which the solvent in the uncured layer is removed; a first polymerization curing step in which the organic polymerizing curable composition in the uncured layer is polymerized; and a second polymerization curing step in which the silicone polymerizing curable composition in the uncured layer is polymerized. The thin-film forming method can comprise formation of the uncured layer on a resin substrate through the intermediation of a primer layer or formation of an uncured underlayer and uncured top layer followed by separate underlayer polymerization and top layer polymerization curing steps.Type: GrantFiled: April 11, 1995Date of Patent: November 5, 1996Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Yoshifumi Kato, Yoshifumi Fujita, Atsushi Hozumi, Akiteru Nishio
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Patent number: 5549999Abstract: Process for coating flexible belt seams including providing a flexible belt having an outwardly facing surface and a welded seam, forming a smooth liquid coating comprising a hardenable film forming polymer on the welded seam, the coating being substantially free of fugitive solvent, and hardening the coating to form a smooth solid coating on the seam.Type: GrantFiled: December 27, 1990Date of Patent: August 27, 1996Assignee: Xerox CorporationInventors: Eugene A. Swain, John J. Darcy
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Patent number: 5536982Abstract: The invention concerns an ultra thin polymer film electret comprising a polymer and a substrate having a surface electric charge, wherein a side chain of the polymer and the substrate are physically or chemically bonded. A method of manufacturing an ultra thin polymer film electret comprising: adsorbing a monomolecular film comprising a unsaturated group or a laminated film comprising the monomolecular film on to a substrate surface, irradiating the monomolecular film or the laminated film with an energy beam to polymerize the unsaturated groups and applying a high voltage to the film is also disclosed. Further, a method of manufacturing an ultra thin polymer film electret comprising: physically bonding a side chain of the polymer to a substrate surface to form a thin film and applying a high voltage to the thin film is also disclosed.Type: GrantFiled: July 25, 1995Date of Patent: July 16, 1996Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Norihisa Mino, Yoshikazu Yamagata, Kazufumi Ogawa
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Patent number: 5512328Abstract: In forming a thin film pattern, first a seed material film is formed on a substrate and then exposed using electron beam lithography, for example, in the shape of the pattern. The latent image is then removed and an oriented material is deposited on one of the seed material and the substrtate, which have different hydrophilicity properties, to form the pattern. The oriented film is formed by an LB film forming method, in one example, and in another example the LB film material is a cresol novolak resin having a proportion of p-cresol novolak to m-cresol novolak of at least 20%.Type: GrantFiled: July 28, 1993Date of Patent: April 30, 1996Assignee: Hitachi, Ltd.Inventors: Toshiyuki Yoshimura, Naoko Miura, Shinji Okazaki, Minoru Toriumi, Hiroshi Shiraishi
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Patent number: 5486384Abstract: Process for producing a multi-layer lacquer coating by the application of a coat of clear lacquer including coating agents which are curable exclusively by polymerization in radicalic and/or cationic manner to a dried or crosslinked colored and/or effect-producing basecoat film process is performed in light having a wavelength of over 550 nm or subject to the exclusion of light. The application step is followed by initiation or implementation of curing of the clear-lacquer film by high-energy radiation. The process is particularly suitable for producing multi-layer lacquer coatings in the automobile industry.Type: GrantFiled: November 5, 1993Date of Patent: January 23, 1996Assignee: Herberts GmbHInventors: Udo Bastian, Manfred Stein
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Patent number: 5470652Abstract: The support sheet for photographic printing paper of the present invention includes a substrate paper sheet, a front surface composite resin coating layer formed on the front surface of the substrate paper sheet and including an inside cured resin layer and outermost cured resin layer including, as a main component, an electron beam-curing product of electron beam-curable unsaturated organic compound, and a back surface resin coating layer formed on the back surface of the substrate paper sheet and including a film-forming synthetic resin, and is produced by a process including the steps of forming at least one inside coating liquid layer including an electron beam-curable unsaturated organic compound on the front surface of the substrate paper sheet;separately forming an outermost coating liquid layer containing an electron beam-curable unsaturated organic compound on a shaping surface and applying thereto a first electron beam irradiation to provide an outermost cured resin layer;superimposing the outermostType: GrantFiled: June 2, 1993Date of Patent: November 28, 1995Assignee: Oji Paper Co., LtdInventors: Takaharu Miura, Hiroyuki Nemoto, Masataka Ito, Masafumi Kobayashi, Chieko Tanaka
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Patent number: 5437893Abstract: Electrification is suppressed with a water-soluble electrification-suppressing film having an electron conductivity and comprising a polymer resin. A high electrification-suppressing effect which is also high in vacuum can be easily obtained by using the electrification-suppressing film with less contamination.Type: GrantFiled: April 26, 1993Date of Patent: August 1, 1995Assignees: Hitachi, Ltd, Showa Denko K. K.Inventors: Fumio Murai, Yasunori Suzuki, Hideki Tomozawa, Ryuma Takashi, Yoshihiro Saida, Yoshiaki Ikenoue
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Patent number: 5436033Abstract: The invention concerns an ultra thin polymer film electret comprising a polymer and a substrate having a surface electric charge, wherein a side chain of the polymer and the substrate are physically or chemically bonded. A method of manufacturing an ultra thin polymer film electret comprising: adsorbing a monomolecular film comprising a unsaturated group or a laminated film comprising the monomolecular film on to a substrate surface, irradiating the monomolecular film or the laminated film with an energy beam to polymerize the unsaturated groups and applying a high voltage to the film is also disclosed. Further, a method of manufacturing an ultra thin polymer film electret comprising: physically bonding a side chain of the polymer to a substrate surface to form a thin film and applying a high voltage to the thin film is also disclosed.Type: GrantFiled: August 1, 1994Date of Patent: July 25, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Norihisa Mino, Yoshikazu Yamagata, Kazufumi Ogawa
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Patent number: 5405657Abstract: A process for the production of flexible impregnated protective, auxiliary and insulating materials on a fibre basis for electrical purposes by the application of an impregnating agent to the material to be impregnated, followed by curing, characterised in that a solvent-free impregnating mass containing one or more olefinically unsaturated, radically polymerisable polyesters, which contain one or more radically polymerisable monomers as reactive diluents, one or more plasticizing agents and optionally one or more peroxide-free radical initiators is applied to the material to be impregnated and curing is then carried out with high energy radiation and optionally by further heating.Type: GrantFiled: November 2, 1993Date of Patent: April 11, 1995Assignee: Herberts G.m.b.H.Inventors: Udo Bastian, Rainer Krause, Gerhard Kiessling
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Patent number: 5376400Abstract: A method for modifying the surface of a material by:a. exposing the surface to a glow discharge plasma to activate the surface;b. exposing the surface to an ethylenically unsaturated monomer or mixture of monomers; andc. irradiating the activated surface with gamma radiation or electron beam radiation in the presence of the ethylenically unsaturated monomer to form a graft polymerized coating thereon.Type: GrantFiled: January 13, 1993Date of Patent: December 27, 1994Assignee: University of Florida Research Foundation, Inc.Inventors: Eugene P. Goldberg, Ali Yahiaoui, James Burns
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Patent number: 5336530Abstract: A coating composition which includes an ionizing radiation-polymerizable oligomer, an ionizing radiation-polymerizable monomer and a releasing agent. The composition has a viscosity regulated to 1000 cps or less, can be rapidly and continuously produced and has excellent surface characteristics. A process for forming a decorative material using the coating composition is also disclosed.Type: GrantFiled: September 2, 1993Date of Patent: August 9, 1994Assignees: Dai Nippon Printing Co., Ltd., The Inctec, Inc.Inventors: Seiji Ikemoto, Katsuhiko Taki, Takashi Matano, Ichiro Kawahata, Kiyoshi Oguchi, Shigeki Ito, Tatsuo Miyauchi
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Patent number: 5304582Abstract: This invention relates to production of a super long conjugated polymer to be used for a molecular device, etc. According to this invention, an acetylene derivative is previously oriented and formed into a monomolecular film on the surface of a substrate and its acetylenic group is polymerized by a catalyst or by irradiation of an energy beam while keeping the orientation. Since the respective molecules are oriented and aligned on the substrate surface, the polymerization reaction readily proceeds, and after the polymerization the resulting polyacetylene molecules are prevented from the breakage of conjugated bonds caused by thermal agitation or twisting of the polyacetylene molecules. Accordingly, a polyacetylene or polyacene type polymer having long conjugated bonds can be obtained easily.Type: GrantFiled: October 13, 1992Date of Patent: April 19, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Kazufumi Ogawa
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Patent number: 5304583Abstract: This invention relates to production of a super long conjugated polymer to be used for a molecular device, etc. According to this invention, an acetylene derivative is previously oriented and formed into a monomolecular film on the surface of a substrate and its acetylenic group is polymerized by a catalyst or by irradiation of an energy beam while keeping the orientation. Since the respective molecules are oriented and aligned on the substrate surface, the polymerization reaction readily proceeds, and after the polymerization the resulting polyacetylene molecules are prevented from the breakage of conjugated bonds caused by thermal agitation or twisting of the polyacetylene molecules. Accordingly, a polyacetylene or polyacene type polymer having long conjugated bonds can be obtained easily.Type: GrantFiled: October 13, 1992Date of Patent: April 19, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Kazufumi Ogawa
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Patent number: 5290548Abstract: A method for modifying the plastic surface of an article adapted for contacting living tissue by the gamma or electron beam irradiation induced chemical graft coating thereon of:(1) a neutral or ionic water-soluble, hydrophilic vinylic monomer or salt thereof;(2) a mixture of at least two of said monomers, or(3) a mixture of (1) or (2) with up to about 50%, by weight, based on the total monomer weight, of a member selected from the group consisting of N-vinylpyrrolidone, 2-hydroxyethyl-methacrylate, and mixtures thereof; so as to form a hydrophilic graft polymer coating on the surface.Type: GrantFiled: March 30, 1992Date of Patent: March 1, 1994Assignee: University of FloridaInventors: Eugene P. Goldberg, Ali Yahiaoui, Khalid Mentak
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Patent number: 5256454Abstract: Electrification is suppressed with a water-soluble electrification-suppressing film having an electron conductivity and comprising a polymer resin. A high electrification-suppressing effect which is also high in vacuum can be easily obtained by using the electrification-suppressing film with less contamination.Type: GrantFiled: May 30, 1991Date of Patent: October 26, 1993Assignees: Hitachi, Ltd., Showa Denko K.K. CorporationsInventors: Fumio Murai, Yasunori Suzuki, Hideki Tomozawa, Ryuma Takashi, Yoshihiro Saida, Yoshiaki Ikenoue
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Patent number: 5254373Abstract: The second pole layer P2 of a thin film transducer structure is fabricated by using two levels of photoresist to define the pattern of the P2 pole layer. The first photoresist layer is deposited as a thin film and is used to focus an optical projection device that projects the mask pattern onto the photoresist. After etching and curing of the first photoresist, which is disposed above a portion of the first pole piece at the apex of the transducer, a second photoresist layer is deposited over the first photoresist layer and above the insulation deposited over the electrical coil structure. The second photoresist layer is relatively thick and serves to define the frame for printing the P2 pole piece pattern a second time. The data track width defined by the P2 pole piece is more uniform as a result of the improved definition of the frame used for registering the P2 pattern.Type: GrantFiled: April 19, 1993Date of Patent: October 19, 1993Assignee: Read-Rite Corp.Inventor: Ronald A. Barr
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Patent number: 5246728Abstract: Plastic ophthalmic lenses are coated with a spin-coating process. A coating solution containing at least ninety percent tri- and tetra-acrylates in a butanol solvent is spin-coated onto the surface of a plastic lens. After drying, the coating is exposed to ultraviolet radiation to cure the coating. A photoinitiator is used which counteracts the tendency of oxygen to inhibit curing of the coating at its exterior surface.Type: GrantFiled: January 29, 1991Date of Patent: September 21, 1993Assignee: BMC Industries, Inc.Inventor: Jorge M. Rodriquez
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Patent number: 5236637Abstract: A stereolithographic system for automatically generating three-dimensional objects on a layer by layer basis by alternately forming layers of medium over previously formed layers of the object and selectively solidifying successive layers of medium at a surface of a body of the medium whereby the object is formed from a plurality of solidified and adhered layers. The surface of the body of medium is maintained at a desired working surface, for example by detecting its level and relatively adjusting it and the working surface so that they coincide.Type: GrantFiled: February 21, 1992Date of Patent: August 17, 1993Assignee: 3D Systems, Inc.Inventor: Charles W. Hull