Fluid Treating The Coating (e.g., Vapor Treating, Etc.) Patents (Class 427/273)
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Patent number: 6620457Abstract: A method of applying a thermal barrier coating system to a metal piece having cooling holes angled in a first direction and cooling holes angled in a second direction. The method includes spraying a bond coat on a first surface of the piece at angles with respect to the first and second directions and to a thickness selected in combination with the angles to prevent the bond coat from entirely filling any of the holes. A thermal barrier coating is sprayed on the bond coat at angles with respect to the first and second directions and to a thickness selected in combination with the angles to prevent the thermal barrier coating from entirely filling any of the holes. The method also includes spraying a high pressure fluid jet from a nozzle assembly through each hole generally parallel to the respective cooling hole.Type: GrantFiled: July 13, 2001Date of Patent: September 16, 2003Assignee: General Electric CompanyInventors: Gilbert Farmer, Thomas John Tomlinson, Raymond William Heidorn, Jeffrey Arnold Fehrenbach, William Lee Imhoff, Myron Edward Rutherford
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Patent number: 6586045Abstract: A method for creating a pattern by applying varying concentrations of pigment in water to a synthetic fabric and allowing the pigment to bleed and preferably to reverse bleed. A pleated window shade having an Aurora Borealis like pattern is also provided. The preferred method comprises the steps of stretching a pleated synthetic fabric window shade vertically, applying pigment in water to the surface of the fabric and allowing the pigment to bleed, then inverting the fabric so that the pigment in solvent bleeds in the opposite direction. Optionally, the method further includes at least one of the steps of applying the solvent, such as for example water, to the pigmented surface before inverting or after inverting thereby inducing additional bleeding, blending, and dilution of the pigment in the wetted area.Type: GrantFiled: April 24, 2000Date of Patent: July 1, 2003Inventor: Hilary Platt Cole
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Patent number: 6565920Abstract: Methods are provided for removing edge beads from spin-on films. A spin-on film is removed from a region of a surface of a spin-coated substrate adjacent to an edge of the surface by spinning the spin-coated substrate, expanding a fluid through a nozzle to form a cryogenic aerosol stream, and directing the cryogenic aerosol stream against the spin-on film in the region as the substrate spins. In another aspect of the invention, a film is formed on a surface of a substrate by dispensing a liquid composition onto the surface, spinning the substrate to distribute the liquid composition to form a substantially uniform film on the surface, expanding a fluid through a nozzle to form a cryogenic aerosol stream, and directing the cryogenic aerosol stream against the film in a region of the surface adjacent to an edge of the surface as the substrate spins. The film may include an alkoxysilane and a low volatility solvent. The fluid may consists essentially of liquid carbon dioxide.Type: GrantFiled: June 8, 2000Date of Patent: May 20, 2003Assignee: Honeywell International Inc.Inventor: Denis H. Endisch
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Patent number: 6558733Abstract: An implantable prosthesis, for example a stent, is provided having one or more micropatterned microdepots formed in the stent. Depots are formed in the prosthesis via chemical etching and laser fabrication methods, including combinations thereof. They are formed at preselected locations on the body of the prosthesis and have a preselected depth, size, and shape. The depots can have various shapes including a cylindrical, a conical or an inverted-conical shape. Substances such as therapeutic substances, polymeric materials, polymeric materials containing therapeutic substances, radioactive isotopes, and radiopaque materials can be deposited into the depots.Type: GrantFiled: October 26, 2000Date of Patent: May 6, 2003Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Syed F. A. Hossainy, Li Chen
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Patent number: 6524775Abstract: An edge bead remover for a photoresist composition disposed as a film on a surface, consisting essentially of a solvent mixture comprising from about 50 to about 80 parts by weight, based on the weight of the solvent mixture, of at least one di(C1-C3)alkyl carbonate and from about 20 to about 50 parts by weight, based on the weight of the solvent mixture, of cyclopentanone. A method is also provided for treating a photoresist composition film disposed on a surface which method comprises contacting the photoresist composition with a solvent mixture, in an amount sufficient to produce a substantially uniform film thickness of the photoresist composition across the surface, wherein the solvent mixture comprises from about 50 to about 80 parts by weight, based on the weight of the solvent mixture, of at least one di(C1-C3)alkyl carbonate and from about 20 to about 50 parts by weight, based on the weight of the solvent mixture, of cyclopentanone.Type: GrantFiled: October 20, 2000Date of Patent: February 25, 2003Assignee: Clariant Finance (BVI) LimitedInventors: Joseph E. Oberlander, Craig Traynor, Ernesto S. Sison, Jeff Griffin
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Publication number: 20020167272Abstract: An EL element including a first electrode, a luminescent layer, an insulation layer, and a second electrode is laminated so that a short circuit between the first electrode and the second electrode at a defect of the insulation layer between the luminescent layer and the second electrode is prevented. A cavity 41 is formed in the layer 4 under an area 51 at which the second insulation layer 5 is missing. The second electrode 6 is separated by the cavity 41 from the first insulation layer 3 located under the luminescent layer 4 to prevent a short circuit.Type: ApplicationFiled: May 8, 2002Publication date: November 14, 2002Inventors: Takashi Inoue, Masayuki Katayama, Hiroshi Kondo
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Patent number: 6267052Abstract: A method of imaging a substrate is disclosed, the method consisting of applying a first layer to the substrate to form a “print pattern” and a second step of presenting an “addressed design” to the substrate both within an outside the area of the print pattern. In the method of the invention, within the print pattern the addressed design is formed into a “durable image material” forming at least a part of the design layer and outside the print pattern, the addressed design does not form a durable image material.Type: GrantFiled: April 22, 1999Date of Patent: July 31, 2001Assignee: Contra Vision LimitedInventors: George R. Hill, Mark D. Godden
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Patent number: 6268017Abstract: A method for providing a partial plating to a lead pin, comprising the steps of plating an entire surface of the lead pin; covering a first part of a plated surface of the lead pin by a gel member; and subjecting a second part of the plated surface of the lead pin, which extends out of the gel member, to a metal-coating removing agent, to remove a metal coating of the second part of the plated surface. The plating step may include providing a composite plating on the entire surface of the lead pin, and the subjecting step may include removing an uppermost metal layer of the composite plating by the metal-coating removing agent. The composite plating may include a nickel base layer and a gold uppermost layer deposited on the nickel base layer. The gel member may be formed from a non-oily clay or paper-mache for handcraft use.Type: GrantFiled: July 13, 1999Date of Patent: July 31, 2001Assignee: Fujitsu Takamisawa Component LimitedInventors: Masayuki Takeuchi, Katsumasa Yoshinari, Kazuyiki Futaki, Kouji Nishimura, Yoshinobu Miyanoo, Ryoji Arai, Nobuyuki Takei
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Patent number: 6210753Abstract: A process for producing decorative, three-dimensionally structured coatings from polyurethane foam on a substrate. A foamable mixture based on a one-component or two-component system is applied to the substrate to be coated, optionally under pressure. The foamable mixture applied is spread, distributed and structured immediately thereafter and during foaming and incipient crosslinking of the mixture on the substrate under the influence of mechanical force, forms a layer.Type: GrantFiled: February 12, 1999Date of Patent: April 3, 2001Inventor: Fatima Vohs
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Patent number: 6092461Abstract: A heat-sensitive stencil including a porous support, and a thermoplastic resin film laminated on the support and having a surface smoothness of at least 10,000 seconds. The stencil is fabricated by bonding a thermoplastic resin film to a porous support with an adhesive having a specific viscosity and a specific volatile matter content, while maintaining each of the support and the film under a specific tension. The stencil may also be fabricated by applying a coating composition containing a resin and first and second solvents having a specific solubility and specific evaporation rates, and drying the applied composition to form a porous support. A printing master is produced by heating the above stencil imagewise by a thermal head with a heating energy of not greater than 0.05 mJ/dot.Type: GrantFiled: December 22, 1999Date of Patent: July 25, 2000Assignees: Ricoh Company, Ltd., Tohoku Ricoh Co., Ltd.Inventors: Tetsuo Tanaka, Hiroshi Tateishi, Fumiaki Arai, Masanori Rimoto, Hiroshi Adachi, Kohichi Ohshima
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Patent number: 6004620Abstract: A method of coating a component (6) having at least one passage (16) entirely therethrough. The method comprising the steps of applying a coating (28) to a region of the surface (22) of the component (6), adjacent to one end of the passage. Then directing a liquid jet (38) through the other end of the said passage (16) so as to remove at least a portion of any coating material (28) located within, or obstructing, the passage (16). In this method the jet is channelled by a first portion (42) of the passage (16) before it encounters the coating material (28) within, or obstructing, the passage (16). In particular the jet (38) is a water jet, which is used to remove a ceramic coating (28) from a component (6). The method has particular use in clearing cooling holes (16) within combustor components or turbine blades. The method can also be used in the repair of such components (6).Type: GrantFiled: October 29, 1998Date of Patent: December 21, 1999Assignee: Rolls-Royce plcInventor: Graham F Camm
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Patent number: 6001542Abstract: A method and system of flattening resist mounds formed during a wet edgebead operation. The wet edgebead operation is used to remove edgebeads formed when a resist material is deposited on a semiconductor wafer. Solvent is introduced to the semiconductor wafer at the area containing the resist mounds to soften them, and the semiconductor wafer is spun at a high speed to flatten the mounds.Type: GrantFiled: December 12, 1997Date of Patent: December 14, 1999Assignee: Advanced Micro Devices, Inc.Inventor: Jonathan Alan Orth
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Patent number: 5952038Abstract: This invention provides a process for forming a phosphor screen of a monochrome cathode ray tube (projection tube) which has an improved luminance remaining property. The phosphor particles are settled on an inner surface of a glass bulb with a binder of SiO.sub.2 to form a phosphor layer, in which the amount of SiO.sub.2 is reduced by rinsing with a water-based liquid like deionized water and a PVA solution before forming an organic layer on the phosphor layer. The phosphor screen has an improved luminance remaining property that is close to that of a direct viewing color cathode ray tube, without lowering the screen quality.Type: GrantFiled: September 10, 1997Date of Patent: September 14, 1999Assignee: Matsushita Electronics CorporationInventors: Junichi Masuda, Tadayuki Tsuchiyama
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Patent number: 5935646Abstract: A process for producing a molecular sieve silica membrane comprising depositing a hybrid organic-inorganic polymer comprising at least one organic constituent and at least one inorganic constituent on a porous substrate material and removing at least a portion of the at least one organic constituent of the hybrid organic-inorganic polymer, forming a porous film.Type: GrantFiled: January 26, 1998Date of Patent: August 10, 1999Assignees: Gas Research Institute, Sandia National LaboratoriesInventors: Narayan K. Raman, Charles Jeffrey Brinker
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Patent number: 5928721Abstract: The present invention provides a coated fabric, including a lightly fused coating of thermoplastic powder material dispersed across at least a portion of a fabric substrate to a degree at which the air permeability is reduced to a level not greater than 1 cubic foot per minute per square foot of fabric at 0.5 inches of water while a high degree of flexibility is maintained.Type: GrantFiled: September 3, 1997Date of Patent: July 27, 1999Assignee: Milliken & CompanyInventors: Richard Henry Parker, Dennis L. Riddle
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Patent number: 5874202Abstract: A method and system of flattening resist mounds formed during a wet edgebead operation. The wet edgebead operation is used to remove edgebeads formed when a resist material is deposited on a semiconductor wafer. Solvent is introduced to the semiconductor wafer at the area containing the resist mounds to soften them, and the semiconductor wafer is spun at a high speed to flatten the mounds.Type: GrantFiled: December 12, 1997Date of Patent: February 23, 1999Assignee: Advanced Micro Devices, Inc.Inventor: Jonathan Alan Orth
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Patent number: 5824362Abstract: A process for platemaking a stencil printing sheet having a solvent-soluble resin layer wherein a solvent is selectively fed to the resin layer so that only the solvent contacts a surface thereof thereby perforating the solvent-soluble layer.Type: GrantFiled: January 9, 1997Date of Patent: October 20, 1998Assignee: Riso Kagaku CorporationInventor: Hideo Watanabe
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Patent number: 5820921Abstract: A phosphor layer is formed on an inside surface of a panel of a glass bulb comprising the panel and funnel connected with each other. A nozzle sprays an organic solvent lacquer on the phosphor layer to form a lacquer intermediate film under conditions ofa/2.ltoreq.L.multidot.tan (.THETA./2).ltoreq.(a/2)+.alpha.(0.ltoreq..alpha. )where,a is the length of the short side of the inside surface of the panel,L is the length from the connecting portion of the panel and funnel to the nozzle in the direction of spray,.THETA.0 is the angle of spray of the nozzle, and.alpha. is a length addition parameter. The lacquer intermediate film formed on the inside surface of the funnel is removed by a liquid.Type: GrantFiled: June 19, 1996Date of Patent: October 13, 1998Assignee: Sony CorporationInventors: Saori Kawase, Nobuyuki Matsushima, Shuichi Saito
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Patent number: 5770275Abstract: A process for producing a molecular sieve silica membrane comprising depositing a hybrid organic-inorganic polymer comprising at least one organic constituent and at least one inorganic constituent on a porous substrate material and removing at least a portion of the at least one organic constituent of the hybrid organic-inorganic polymer, forming a porous film.Type: GrantFiled: August 23, 1996Date of Patent: June 23, 1998Inventors: Narayan K. Raman, Charles Jeffrey Brinker
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Patent number: 5763016Abstract: Water-free, gaseous sulfur trioxide is used as an agent to form patterns in organic coatings, films, and layers, including photoresists, by etching areas exposed to the agent through an overlying mask or by developing a latent image of the desired pattern using the agent as a dry-developer.Type: GrantFiled: December 19, 1996Date of Patent: June 9, 1998Assignee: Anon, IncorporatedInventors: Eric O. Levenson, Ahmad Waleh
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Patent number: 5750317Abstract: A method and system of flattening resist mounds formed during a wet edgebead operation. The wet edgebead operation is used to remove edgebeads formed when a resist material is deposited on a semiconductor wafer. Solvent is introduced to the semiconductor wafer at the area containing the resist mounds to soften them, and the semiconductor wafer is spun at a high speed to flatten the mounds.Type: GrantFiled: September 16, 1994Date of Patent: May 12, 1998Assignee: Advanced Micro Devices, Inc.Inventor: Jonathan Alan Orth
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Patent number: 5741559Abstract: The invention relates to a method and apparatus for improving properties of a solid material by providing shock waves therethrough. Laser shock processing is used to provide the shock waves. The method includes applying a water based coating to a portion of the surface of the solid material and then applying a transparent overlay to the coated portion of the solid material. A pulse of coherent laser energy is directed to the coated portion of the solid material to create a shock wave. A high speed jet of fluid is directed to coated portion of the solid material at times to remove the coating from the solid material. Additionally, the method may include directing a high speed jet of fluid to the surface of the solid material to dry the solid material.Type: GrantFiled: October 23, 1995Date of Patent: April 21, 1998Assignee: LSP Technologies, Inc.Inventor: Jeff L. Dulaney
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Patent number: 5721007Abstract: An additive electrical circuit (5) on a flexible substrate (1) fabricated by; metallization of the substrate, applying a mask pattern comprising a plating resistant material, applying a conductive circuit material in a circuit pattern that is uncovered by the mask pattern, and removing the plating resistant material and the metallization. Leaving the circuit (5) on the substrate (1) to be applied as a harness or instrument panel.Type: GrantFiled: April 25, 1995Date of Patent: February 24, 1998Assignee: The Whitaker CorporationInventors: Thomas J. Lynch, Ram K. Agnihotri, Paul F. Engle, Roger T. Banks, Ronald B. Barnes, Earl Hennenhoefer, Russell T. Lerch, Thomas O'Shea, John Yavor
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Patent number: 5707904Abstract: An awning fabric for use with a backlit sign of the type having a light source disposed on one side of the awning fabric. The awning fabric includes a scrim and a translucent coating on at least one side of the scrim. The scrim is treated with an optical brightener. When the awning fabric is viewed by an observer from the side opposite the light source, the visibility of the scrim to the observer is minimized. The translucent coating may be plastisol. The optical brightener is preferably a fluorescent whitening agent comprising a stilbene derivative. Also disclosed is a method for producing an awning fabric. The method includes applying an optical brightener to a scrim and applying a translucent coating onto at least one side of the scrim. The method may further include applying an opaque coating onto the translucent coating. Thereafter, a solvent is selectively applied to the opaque coating thereby forming a selected pattern on the awning fabric.Type: GrantFiled: January 31, 1996Date of Patent: January 13, 1998Assignee: Highland Industries, Inc.Inventors: Keith N. Gray, Earl T. Crouch, Cheryl D. Malloy
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Patent number: 5695908Abstract: There are disclosed a process for preparing a printing plate which comprises the steps of providing, on a support, a layer containing a water-soluble polymer which becomes water-insoluble by a metal ion, and feeding the metal ion imagewisely from the surface of the layer to form an image pattern comprising the hardened water-soluble polymer on the support, anda plate for preparing a printing plate which comprises a support and a layer containing a water-soluble polymer which becomes water-insoluble in contact with a metal ion provided on the surface of the support.Type: GrantFiled: December 22, 1995Date of Patent: December 9, 1997Assignee: Mitsubishi Paper Mills, LimitedInventor: Akira Furukawa
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Patent number: 5681616Abstract: A thermal barrier coating is provided which is adapted to be formed on an article subjected to a hostile thermal environment while subjected to thermally, mechanically and/or dynamically-induced stresses, such as a component of a gas turbine engine. The thermal barrier coating is composed of a bond layer that tenaciously adheres an insulative ceramic layer to the article. The bond layer is formed of a metallic oxidation-resistant material, and has an average surface roughness R.sub.a of at least about 7.5 micrometers, while the ceramic layer is characterized by being segmented by at least two sets of grooves. The grooves have substantially uniform widths of about 100 to about 500 micrometers, with adjacent grooves of each set being spaced about 10 to about 250 millimeters apart.Type: GrantFiled: December 7, 1995Date of Patent: October 28, 1997Assignee: General Electric CompanyInventors: Bhupendra K. Gupta, Gilbert Farmer, Alan Walker
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Patent number: 5609914Abstract: A method for preparing high resolution wash-off polyimide images is described having the sequential steps of (a) providing a non-photosensitive layer containing a substantially non-crystalline poly(amic acid) polymer or salt thereof on a substrate; (b) applying an aqueous ink imagewise to the non-photosensitive layer to change the solubility in the ink-applied areas, the aqueous ink containing a solubility altering agent; (c) washing the non-photosensitive layer with an aqueous solution to remove the soluble areas; and (d) converting the poly(amic acid) polymer to a polyimide.Type: GrantFiled: May 2, 1995Date of Patent: March 11, 1997Assignee: E.I. Du Pont de Nemours and CompanyInventors: Sheau-Hwa Ma, Walter R. Hertler, Howard E. Simmons, III
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Patent number: 5573815Abstract: Polymeric ledges on a metal stencil screen are made using a polymeric layer which is partially removed by a developer solution.Type: GrantFiled: May 30, 1995Date of Patent: November 12, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Allan Cairncross, Chester A. Thayer, II
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Patent number: 5552183Abstract: For coating or printing plastic films with hydrous coating agents, solvent-containing coating agents or mixtures thereof, UV-curable lacquers or inks as well as PVC pastes and, in particular, for printing with water soluble inks, the foil is deposited on a substrate in order to avoid excessively long drying paths and in order to enable the adherence to an exact print repeat, and said film is heated until an adhesion has been produced, is subsequently cooled while remaining on the substrate, is coated or, respectively, printed while remaining to adhere to the substrate, is subsequently dried and, finally, is cooled and removed from the substrate. The adhesion of the film on the substrate established after the formation of the adhesion is thereby also preserved after the cooling before the coating or printing.Type: GrantFiled: January 6, 1995Date of Patent: September 3, 1996Assignee: Erich KillarInventor: Erich Killar
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Patent number: 5545434Abstract: A method of making an irregularly porous cloth includes a first process in which the woof threads of a cloth are so woven that the meshes of the cloth are irregular in shape. The cloth is then impregnated with a foaming material. The impregnated and foamed cloth is subsequently heated and rolled to form a shading cloth having irregular patterns and pores.Type: GrantFiled: November 8, 1994Date of Patent: August 13, 1996Inventor: Hermes Huarng
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Patent number: 5534095Abstract: This invention relates to mineral fiberboard products which are embossed to provide a decorative surface. In the invention herein a layered structure is formed before the embossing process that consists of the currently used mineral fiberboard on the bottom with an additional layer of a granulated fines material on the board surface. When embossed using the current process, the resulting composite board provides higher fidelity images than the unlayered embossed board.Type: GrantFiled: March 23, 1995Date of Patent: July 9, 1996Assignee: Armstrong World Industries, Inc.Inventor: David S. Brown
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Patent number: 5466653Abstract: A method for preparing high resolution, negative-working, wash-off relief images, preferably using ink jet printing, comprising the sequential steps of: (a) providing a non-photosensitive layer comprising an acid-containing polymer; (b) applying an ink imagewise to the non-photosensitive layer to produce image areas and unimaged areas, said ink comprising an esterification agent which is capable of reacting with the acid groups in the polymer to form water-insoluble ester groups; (c) drying the non-photosensitive layer to induce or accelerate the esterification reaction between the acid groups and the esterification agent in the imaged areas; and (d) washing the non-photosensitive layer with an aqueous developer solution to remove the unimaged areas of the non-photosensitive layer is described.Type: GrantFiled: June 29, 1994Date of Patent: November 14, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: Sheau-Hwa Ma, Michael W. J. West
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Patent number: 5466483Abstract: A method for producing a silica mask on metal oxide surface is disclosed. Benzaldehyde is adsorbed on neutral or weak alkaline metal oxide surface, and then tetra-methoxy silane is deposited. The tetra-methoxy silane is hydrolyzed by water vapor into silica and the adsorbed benzaldehyde is removed by NH3 as benzo-nitrile. Thus a silica mask is produced on the metal oxide surface, and the mask has vacancies corresponding to the removed benzaldehyde. The vacancies act as the adsorption sites for shape selective adsorption.Type: GrantFiled: June 15, 1994Date of Patent: November 14, 1995Assignees: Miki Niwa, Figaro Engineering Inc.Inventors: Miki Niwa, Nobuaki Kodakari, Hisato Funabiki, Naonobu Katada
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Patent number: 5413270Abstract: A method for removing a portion of a coating disposed on a plate, in which a nozzle having a wide jet is first utilized to remove most of the material of the portion to be removed. Successively or concurrently therewith, at least one fine jet nozzle is utilized to cut the contour of the portion of the coating being removed. The method is particularly advantageous for removing deposits of a plasma deposition, and more particularly for deposits which resist a diffusion welding or soldering of plates or substrates with one another.Type: GrantFiled: December 28, 1993Date of Patent: May 9, 1995Assignee: Societe Nationale D'Etude et de Construction de Moteurs D'Aviation "SNECMA"Inventors: Pierre M. S. Lechervy, Paul L. Silva
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Patent number: 5393580Abstract: A method for preparing high resolution negative-working wash-off relief images comprising the sequential steps of: (a) providing a non-photosensitive, aqueous processable layer, preferably on a substrate, said layer comprising a dispersion of solvent-coalesceable particles in a polymer matrix; (b) imagewise applying an ink to the non-photosensitive layer to coalesce the particles and form a water-insoluble polymer blend between the particles and the polymer matrix in the ink applied areas; and (c) washing the layer with an aqueous developer solution to remove the non-ink applied areas of the layer.Type: GrantFiled: December 20, 1993Date of Patent: February 28, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: Sheau-Hwa Ma, Andrew E. Matthews
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Patent number: 5362608Abstract: THFA (tetrahydrofurfuryl alcohol) is employed as the active component of edge bead removal compositions negating the need for N-methylpyrrolidone and providing unexpected effectiveness for multilayer microelectronic edge beads having at least one highly polar aromatic polymer layer, particularly when such layer is adjacent to an acid-catalyzed photoresist.Type: GrantFiled: August 24, 1992Date of Patent: November 8, 1994Assignee: Brewer Science, Inc.Inventors: Tony D. Flaim, James Lamb, III, Terry Brewer
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Patent number: 5348767Abstract: Faux finishes are produced without need for artistic manipulations of coating materials by applying a layer of one or more unique color mixtures to a substrate surface and, while the layer is still wet, applying thereto scattered portions of one or more special blending solvent mixtures, allowing such portions to interact with the color mixture layer to automatically form a faux finish pattern and then allowing the resulting faux finish to dry. The color mixtures have the following weight percentage composition: 20%-60% acrylic latex, 20%-60% propylene glycol, and 1%-60% colorant. The blending solvent mixtures have the following weight percentage composition: 10%-30% isopropyl alcohol, 10%-30% ethylene glycol monobutyl ether, 30%-60% water, and 5%-30% acrylic latex.Type: GrantFiled: September 2, 1993Date of Patent: September 20, 1994Inventor: Raymond P. Sandor
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Patent number: 5296305Abstract: The present invention relates to a method of manufacture of an optical lens providing refractive index modulation, characterized in that, starting from a previously shaped lens of transparent hydrophilic polymer of the hydrogel type, the lens is impregnated with a photopolymerizable composition containing at least one monomer and a photoinitiator in solution in a solvent which causes swelling of the lens, the impregnated lens is subjected to irradiation which is spatially modulated in irradiation intensity and/or irradiation time, thus causing local selective polymerization of the monomer, whereupon the excess quantity of photoinitiator and non-polymerized monomer is removed by solvent extraction.Type: GrantFiled: June 4, 1993Date of Patent: March 22, 1994Assignee: Esslior International (Compagnie Generale d'Optique)Inventors: Dominique Baude, Daniel Lougnot
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Patent number: 5292556Abstract: A method for preparing high resolution negative-working wash-off relief images comprising the sequential steps of: (a) providing a non-photosensitive, aqueous processable layer, preferably on a substrate, said layer comprising a dispersion of solvent-coalesceable particles in a polymer matrix; (b) imagewise applying an ink to the non-photosensitive layer to coalesce the particles and form a water-insoluble polymer blend between the particles and the polymer matrix in the ink applied areas; and (c) washing the layer with an aqueous developer solution to remove the non-ink applied areas of the layer.Type: GrantFiled: December 22, 1992Date of Patent: March 8, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: Sheau-Hwa Ma, Andrew E. Matthews
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Patent number: 5290608Abstract: A patterned mask is provided on a surface by formulating a liquid, 100% solids-type thermally curable mask composition, applying the composition as a film to the surface, selectively thermally exposing the film in the desired mask pattern using a focused beam of heat energy without use of an interposed patterned mask, and then developing away the film areas not thermally exposed so as to produce a patterned mask. The invention enables the elimination of potentially troublesome volatile solvent carriers or diluents from the composition, while at the same time still enabling production of finely-defined patterns without having to bring a patterned mask (cf. phototool) into contact with the composition. Similarly, the expense involved with use of dry film photo-sensitive masks is avoided.Type: GrantFiled: July 26, 1993Date of Patent: March 1, 1994Assignee: MacDermid, IncorporatedInventors: John Grunwald, Gary Larson
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Patent number: 5279926Abstract: Pressurized liquid solvent is dispensed on specific areas of a semiconductor wafer. A vented accumulator removes bubbles introduced by an upstream needle valve. The accumulator outlet leads directly to a dispensing tip, without further pressure drop.Type: GrantFiled: May 6, 1992Date of Patent: January 18, 1994Assignee: International Business Machines CorporationInventors: Willard F. Chandler, Robert D. Johnson, Steven E. Monahan, Ronald W. Olson
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Patent number: 5270078Abstract: A method for preparing high resolution wash-off images, preferably using ink jet printing, comprising the sequential steps of: (a) providing a non-photosensitive layer, preferably on a substrate, wherein the non-photosensitive layer comprises a polymer selected from the group consisting of acid containing polymers having at least 0.4 milliequivalents of acid functions per gram of polymer and amine containing polymers having at least 0.4 milliequivalents of amine functions per gram of polymer, (b) applying an aqueous ink imagewise to the non-photosensitive layer to form a salt of the polymer in the ink applied areas, said aqueous ink comprising an aqueous carrier medium and a salt-forming agent; and (c) washing the non-photosensitive layer with an aqueous solution to remove the imaged areas of the non-photosensitive layer.Type: GrantFiled: August 14, 1992Date of Patent: December 14, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventors: Peter Walker, Sheau-Hwa Ma, Andrew E. Matthews
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Patent number: 5268392Abstract: A concrete fluid structure deteriorated to the condition of removal of substance of the concrete by sulfuric acids and like corrosive material in contact therewith is restored by a substratum of epoxy foam, polyurethane foam, or a combination thereof having a relatively thin layer of polyvinyl chloride or polyethylene bonded to the outward facing surface of the foam and bonding the layer to the structure. A method for forming the substratum in the location of the deteriorated structure is described.Type: GrantFiled: October 26, 1992Date of Patent: December 7, 1993Inventor: Richard L. Bertram
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Patent number: 5173324Abstract: A unique hand made graphic artwork print on a paper sheet with a manually hand embossed three dimensional design and a unique coloring process which is transferred to the sheet by hand with a burnisher. A kit for making the prints includes water repellent sheets for making embossing patterns, a hand burnisher, water absorbent art paper, a plastic backing sheet, a plastic area piece, and may include several water soluble pigments in stick form, water soluble felt tips, a water sprayer, colored sheets and envelopes, glue, pencil, and instructional materials for correct and effective use of the aforesaid materials. A method of making the novel graphic artwork print includes the steps of applying dry water soluble pigments upon one or more water repellent embossing patterns, wetting the applied pigment, and manually burnishing the paper over the pigment and patterns to produce the unique embossed graphic artwork print where the paper removes a portion of the pigment when lifted from the colored pattern.Type: GrantFiled: September 6, 1989Date of Patent: December 22, 1992Inventor: Catherine Newhart
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Patent number: 5169678Abstract: The ultraviolet absorption characteristics of a polymer material are modified by the addition of an ultraviolet absorbing dye to render it laser ablatable at a frequency at which the unmodified material is substantially non-laser ablatable.Type: GrantFiled: December 26, 1989Date of Patent: December 8, 1992Assignee: General Electric CompanyInventors: Herbert S. Cole, Robert J. Wojnarowski
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Patent number: 5167983Abstract: A technique for fabricating a patterned conductor on the inner surface of a transparent tube comprises providing a source of conductive material inside a hollow tube and directing actinic radiation onto the tube wall where the deposition of a conductive pattern is desired to deposit conductive material thereon. That conductive deposit may be thickened by subsequent electroless or electroplating. The result is an improved magnetic resonance sensor comprising a hollow tube having "flat" conductor coils disposed on its interior surface.Type: GrantFiled: August 12, 1991Date of Patent: December 1, 1992Assignee: General Electric CompanyInventors: Yung S. Liu, Renato Guida
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Patent number: 5144333Abstract: Process for the storage of information in an organic recording layer which, as the result of local treatment of its surface with an organic solvent in accordance with the shape of the information to be marked can alter its absorption spectrum and/or its photoconductivity in such a way that information is produced and stored respectively at the treated areas of this layer. The information thus stored can be read off visually, by means of a micro-reader or by means of an incorporated electrode system.Type: GrantFiled: June 4, 1990Date of Patent: September 1, 1992Assignee: Ciba-Geigy CorporationInventors: Jin Mizuguchi, Alain C. Rochat
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Patent number: 5128088Abstract: A continuous method for making adhesive-lined condom catheters for male urinary drainage. The method involves successive steps carried out with respect to a dipping mandrel and a latex catheter being formed upon it, all of which may be performed automatically as the mandrel is advanced from one station to the next.Type: GrantFiled: August 14, 1990Date of Patent: July 7, 1992Assignee: Hollister IncorporatedInventors: Gary D. Shimomura, Eric D. Ellingson
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Patent number: 5118524Abstract: The present invention provides a vascular biomaterial that includes expanded PTFE and a haemocompatible membrane covalently bonded thereto. Also provided is a process for making the vascular biomaterial that involves chemically modifying the surface of expanded PTFE to provide a surface partially covered with for instance, a hydroxyl moiety, and covalently bonding a haemocompatible membrane to the chemically modified surface of expanded PTFE.Type: GrantFiled: September 14, 1990Date of Patent: June 2, 1992Assignee: The Toronto HospitalInventors: Michael Thompson, Neil B. McKeown, Peter G. Kalman
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Patent number: 5116644Abstract: A plastic lens having an anti-reflecting and hard coat layer is provided. The anti-reflecting layer is formed by coating a lens with a hard coat solution containing at least one oxide sol, hardening the coated solution to give a hard coat layer and immersing the lens into an acidic or alkaline solution to dissolve the oxide particles contained in the hard coat layer so as to make the layer non-uniform.The anti-reflecting effect of the formed layer is equivalent to that of a conventional anti-reflecting film consisting of at least three layers.Type: GrantFiled: April 26, 1991Date of Patent: May 26, 1992Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Kazuo Asai, Masaharu Kikuchi