Coating Is Predominantly Organic Material Patents (Class 205/317)
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Patent number: 7297406Abstract: The present invention relates to a cationic electrodeposition coating composition substantially free of lead compounds, which is excellent in curability and can be finish-coated with a splendid appearance, and an article coated with the composition. The invention provides a lead-free electrodeposition coating composition excellent in curability and a coated article, the composition being capable of forming a coating film, which emits less tin compounds to have no influence on appearance of a finish coating film and film performances.Type: GrantFiled: March 3, 2004Date of Patent: November 20, 2007Assignees: Honda Motor Co., Ltd., Nippon Paint Co., Ltd.Inventors: Hiroyuki Morishita, Katsuyoshi Kaneko, Fumiaki Niisato, Toshiyuki Ishii, Kageki Fujimoto
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Patent number: 7264706Abstract: An improved aqueous cathodic electrocoating composition that contains an anti-crater agent which is a water-reducible polyester resin having an acid value less than 40 mg KOH/g. The water-reducible polyester is the reaction product of (1) a hydroxy cyclic carbonate; (2) a polycarboxylic acid anhydride; (3) optional monofunctional epoxy resin; (4) a polyfunctional epoxy resin; and, (5) a polyamine compound containing tertiary amine and either primary or secondary functionality. The reaction product is neutralized in the presence of acid and water to convert the tertiary amine groups to water-dilutable groups. Hydrolyzable silane groups can also be incorporated into the reaction product to further enhance its crater resistance property. The electrocoat composition produces coatings having a smoother appearance with fewer craters without adversely affecting intercoat adhesion of the cured film to subsequent coating layers applied thereover.Type: GrantFiled: October 18, 2004Date of Patent: September 4, 2007Assignee: E. I. du Pont de Nemours and CompanyInventors: Allisa Gam, Thomas Grawe, Joachim Ruerup, Andreas Fieberg
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Patent number: 7264705Abstract: An improved aqueous cathodic electrocoating composition that contains an anti-crater agent which is a water-reducible polyester resin having an acid value less than 40 mg KOH/g. The water-reducible polyester is the reaction product of (1) a hydroxy cyclic carbonate; (2) a polycarboxylic acid anhydride; (3) optional monofunctional epoxy resin; (4) a polyfunctional isocyanate resin; and, (5) a polyamine compound containing tertiary amine and either primary or secondary functionality. The reaction product is neutralized in the presence of acid and water to convert the tertiary amine groups to water-dilutable groups. Hydrolyzable silane groups can also be incorporated into the reaction product to further enhance its crater resistance property. The electrocoat composition produces coatings having a smoother appearance with fewer craters without adversely affecting intercoat adhesion of the cured film to subsequent coating layers applied thereover.Type: GrantFiled: October 18, 2004Date of Patent: September 4, 2007Assignee: E. I. duPont de Nemours and CompanyInventors: Allisa Gam, Thomas Grawe, Joachim Ruerup, Andreas Fieberg
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Patent number: 7250189Abstract: An electroconductive porous substrate such as carbon fiber paper with an electroconductive polymer deposited on the carbon fibers of the paper is used as a wicking material or diffusion medium in a fuel cell. The polymer may be deposited from a solution of monomers by electrochemical polymerization.Type: GrantFiled: August 5, 2004Date of Patent: July 31, 2007Assignee: General Motors CorporationInventors: Chunxin Ji, Gerald W Fly
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Patent number: 7229545Abstract: A biomimetically produced bone-analogous coating, comprising organic and inorganic main constituents, is suitable for coating metallic implant materials of any desired surfaces. The coating comprises a collagen matrix mineralized with calcium phosphate.Type: GrantFiled: April 16, 2003Date of Patent: June 12, 2007Assignee: Biomet Deutschland GmbHInventors: Andreas Sewing, Michel Dard, Sophie Roessler, Dieter Scharnweber, Hartmut Worch
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Patent number: 7204925Abstract: A structure and a method of preventing electrolytic corrosion for a magnesium alloy member (20), the structure wherein a first coated layer (11) formed by electro deposition and a second coated layer (12) formed by distributing PTFE particles on the first coated layer (11) are covered on the surface of a tightening member (1) at least on a surface coming into contact with the magnesium alloy member (20), whereby, the electrolytic corrosion of the magnesium alloy member can be prevented at a low cost by insulating a tightening member such as a steel bolt and a washer from the magnesium alloy member, and an adhesiveness therebetween can be sufficiently assured.Type: GrantFiled: August 20, 2002Date of Patent: April 17, 2007Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Sadaharu Matsumura, Tsuyoshi Kawabe, Tetsuya Saito, Katsumi Sakamoto, Ryosuke Kamegamori
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Patent number: 7195701Abstract: A method of improving the material properties of a composite by electrodepositing various polymers, organic compounds or inorganic compounds onto each individual carbon (graphite) fiber strand, whether individual fiber or as a fabric to form an homogeneous chemically-bonded composite as opposed to the formation of a heterogeneous, non-chemically bonded composite. Thus, electrodeposition forms a unique discrete interface at the molecular layer (nanolayer) between the reinforcement (fiber) and the matrix (resin) over as opposed to any previous resin infusion process.Type: GrantFiled: September 30, 2003Date of Patent: March 27, 2007Assignee: The Boeing CompanyInventors: Norman R. Byrd, Stephen C. Amundson, Robert H. Coker, III
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Patent number: 7175746Abstract: A polymer based enzyme electrode useful for estimation for cholesterol is disclosed. The electrode has an ion-doped layer to increase the conductivity of the poly pyrrole layer. The ion doping is achieved by incorporating dodecyl benzene sulphonate (DBS) in the poly pyrrole film deposited by electrochemical deposition The enhanced conductivity due to ion doping helps in faster estimation of cholesterol having a measured response time of 30 seconds. The shelf life of the electrode is at least eight weeks without a mediator at room temperature.Type: GrantFiled: October 22, 2002Date of Patent: February 13, 2007Assignee: Council of Scientific and Industrial ResearchInventors: Arun Kumar, Asha Chaubey, Bansi Daar Malhotra, Rajesh, Surinder Krishan Grover
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Patent number: 7169284Abstract: The present invention is directed to a conductive polyethylenedioxythiophene (PEDOT) polymer coated electrode adapted for use as a cathode electrode of an electrolytic capacitor and a method of manufacturing the same. According to the present invention, a metal foil substrate is placed in an aqueous solution of a doped 3,4-ethylenedioxythiophene (EDOT) monomer and a co-solvent, to dissolve the EDOT monomer, and a current is applied until the desired thickness of the polymer coating is electrochemically deposited. Additionally, an organic acid is added to the aqueous solution to act as an oxidizer. In order to improve the uniformity and adherence of the coating a surfactant may also be added. In a preferred embodiment, the EDOT monomer and cosolvent are first mixed, and then added to a water solution of oxidizer and dopant. The polymer film is deposited electrochemically onto the substrate by applying a DC current between 0.05 mA/cm2 and 5.0 mA/cm2 for 1 to 60 minutes, more preferably between about 0.Type: GrantFiled: September 22, 2003Date of Patent: January 30, 2007Assignee: Pacesetter, Inc.Inventors: Naixiong Jiang, Timothy Marshall, Melissa Moore, Christopher R. Feger, Thomas F. Strange
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Patent number: 7144492Abstract: The application of anti-corrosion base coating by cataphoretic painting (KTL) is well known in manufacturing automobile body parts. However the cataphoretic paint can penetrate only incompletely or possibly not at all into the gap in the contact areas of the components joined to each other. This type of gap is conventionally scaled following cataphoretic painting, in order to ensure corrosion protection for the entire assembly. The present invention makes it possible to dispense with the sealing in the production of an assembly of joined conductive components and nevertheless to ensure a sufficient corrosion protection. By introducing topographic changes in the components projecting from their surface in the known contact areas and then joining these components, they are spaced apart by the projecting topographic changes in such a manner that during cataphoretic painting the paint wets the entire surface of the assembly.Type: GrantFiled: May 27, 2005Date of Patent: December 5, 2006Assignee: DaimlerChrysler AGInventors: Wolfgang Becker, Alfred Fuchs, Klaus Goth, Markus Knoeller, Dirk Lindenau, Claus-Dieter Reiniger, Daniel Zauner
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Patent number: 7144658Abstract: An electrode for use in energy storage comprising a nanostructured mesoporous electrically conductive metal oxide and an ultrathin, conformal polymer coating on the metal oxide wherein said electrode has a mesoporous structure. Also disclosed is the related method for making an electrode for use in energy storage.Type: GrantFiled: June 24, 2003Date of Patent: December 5, 2006Assignee: The United States of America as represented by the Secretary of the NavyInventors: Jeffrey W. Long, Debra R. Rolison
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Patent number: 7138044Abstract: Aqueous compositions containing polymerizable components and a water incompatible catalyst for the polymerization reaction sorbed onto an inorganic particulate carrier, polymers produced thereby and articles coated with said polymers are provided. The invention also relates to water incompatible catalyst sorbed onto on an inorganic particulate carrier for aqueous coatings and the coatings produced by reactions catalyzed with the water incompatible catalyst sorbed onto an inorganic particulate carrier in an aqueous matrix.Type: GrantFiled: July 30, 2003Date of Patent: November 21, 2006Assignee: Arkema Inc.Inventor: William D. Honnick
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Patent number: 7122106Abstract: A method for producing an array of oriented nanofibers that involves forming a solution that includes at least one electroactive species. An electrode substrate is brought into contact with the solution. A current density is applied to the electrode substrate that includes at least a first step of applying a first substantially constant current density for a first time period and a second step of applying a second substantially constant current density for a second time period. The first and second time periods are of sufficient duration to electrically deposit on the electrode substrate an array of oriented nanofibers produced from the electroactive species. Also disclosed are films that include arrays or networks of oriented nanofibers and a method for amperometrically detecting or measuring at least one analyte in a sample.Type: GrantFiled: May 23, 2002Date of Patent: October 17, 2006Assignee: Battelle Memorial InstituteInventors: Yuehe Lin, Liang Liang, Jun Liu
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Patent number: 7101469Abstract: A metal piece having an organic coating with improved corrosion resistance and adhesion is described which comprises a zinc or zinc alloy plated metal piece having on its surface, a chromate film deposited from an aqueous acidic chromium solution comprising trivalent chromium as substantially the only chromium ion present, and a cathodic electrocoated siccative organic coating on the chromate film. A process for obtaining such coated metal pieces also is described.Type: GrantFiled: November 10, 2004Date of Patent: September 5, 2006Assignee: Atotech Deutschland GmbHInventors: John R. Kochilla, Morgan Bishop, William B. Staples
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Patent number: 7090762Abstract: The metal oxide surface coating of an anodized valve metal may be made conductive under certain conditions so that conductive coatings can be electrolytically deposited on the surface of the oxide. When a dry polar aprotic electrolyte solution is used at a reduced temperature and a relatively high field is applied, the oxide ceases to be insulative. The process is reversible, meaning that there is no permanent change in the oxide.Type: GrantFiled: August 5, 2003Date of Patent: August 15, 2006Assignee: Kemet Electronics Corp.Inventors: Terrance B. Tripp, Brian John Melody, John Tony Kinard, David Alexander Wheeler, Duane Earl Stenzinger
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Electrodeposition of redox polymers and co-electrodeposition of enzymes by coordinative crosslinking
Patent number: 7052591Abstract: Thin films of transition metal complex-based redox polymers are electrodeposited on electrodes. When hydrated, an electrodeposited film conducts electrons by electron exchange between backbone-bound, but mobile, functional segments of its redox polymer constituents. These functional segments, or redox complexes, have labile ligands in their inner coordination spheres. The backbones of the redox polymers have strongly coordinating ligands. Electrodeposition results from coordinative crosslinking by exchange of labile ligands and strongly coordinating ligands between polymer chains. When a biological macromolecule or protein, such as a redox enzyme, is added to the solution from which the redox polymer is electrodeposited, it is co-electrodeposited on the electrode surface. When the co-deposited film contains redox enzymes, for example, the modified electrode may be used to catalyze the electrooxidation or electroreduction of substrates of the enzymes.Type: GrantFiled: September 19, 2002Date of Patent: May 30, 2006Assignee: TheraSense, Inc.Inventors: Zhiqiang Gao, Adam Heller, Murielle Dequaire -
Patent number: 6951603Abstract: A two-layered anode (1?) has a lower layer (2) including a non-conductive carrier material to which a conductive electrode layer (3?) is applied. Non-conductive areas, formed by partial removal of the electrode layer, have a predetermined structure corresponding to the structure of a structured polymer film (11) to be formed. The anode (1?) is connected with a platinum cathode in an electrolyte into which compounds of low molecular weight, preferably monomers of the polymer film (11), are introduced. During current flow, a conductive polymer film (11) of the predetermined structure is formed on conductive areas brought into contact with the electrolyte. A non-conductive substrate layer (13) is applied to the structured polymer film (11). The structured polymer film (11) adheres to the non-conductive substrate layer (13) and can be released from the electrode (1?) without damaging the electrode.Type: GrantFiled: August 21, 2002Date of Patent: October 4, 2005Assignee: Technische Universitat BraunschweigInventors: Eike Becker, Hans-Hermann Johannes, Wolfgang Kowalsky
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Patent number: 6942781Abstract: A method for electroplating a strip of foam having two opposite sides and an electrically conductive surface, including: (a) continuously applying the strip of foam onto a moving cathode immersed in an electroplating bath so that the strip travels through the bath in contact with the moving cathode to electroplate metal on the strip of foam, a first side of the strip of foam facing a working surface of the moving cathode, and (b) continuously removing the electroplated strip of foam from the moving cathode when metal has been plated to a desired thickness; A metal foil is continuously formed by electrodeposition on the working surface of the moving cathode in such a way that the strip of foam is applied at step (a) onto the moving cathode over the metal foil; and, after step (b), the metal foil is continuously removed from the moving cathode.Type: GrantFiled: September 12, 2001Date of Patent: September 13, 2005Assignee: Efoam S.A.Inventors: Marc Kuhn, Louis Masotti, Damien Michel, Liyan Yang
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Patent number: 6905590Abstract: A cationic electrodeposition coating composition containing no heavy metal-based anticorrosive agents such as lead compounds, and which is capable of forming a coating film with a high corrosion resistance. The composition contains 0.5 to 20% by weight of a compound having an N-substitued benzoxazine ring represented by formula (1), relative to a resin solid matter, and an unsaturated hydrocarbon group-containing sulfide-modified epoxy resin as a base resin: wherein R is a hydrocarbon group having 1 to 8 carbon atoms.Type: GrantFiled: April 1, 2002Date of Patent: June 14, 2005Assignee: Nippon Paint Co., Ltd.Inventors: Hiroyuki Nojiri, Toshitaka Kawanami, Kazuo Morichika, Hidenori Tanaka, Hiroyuki Sakamoto
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Publication number: 20040265692Abstract: An electrode for use in energy storage comprising a nanostructured mesoporous electrically conductive metal oxide and an ultrathin, conformal polymer coating on the metal oxide wherein said electrode has a mesoporous structure. Also disclosed is the related method for making an electrode for use in energy storage.Type: ApplicationFiled: June 24, 2003Publication date: December 30, 2004Inventors: Jeffrey W. Long, Debra R. Rolison
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Publication number: 20040266895Abstract: The polymer matrix material includes a polymerization product of one or more monomers selected from the group of water-soluble, ethylenically-unsaturated acids and acid derivatives, and a crosslinking agent. A quantity of water is used for polymerization, such that the polymer material is swelled to a defined volume upon curing. Optionally, a water-soluble or water-swellable polymer and/or a chemical polymerization initiator.Type: ApplicationFiled: April 5, 2004Publication date: December 30, 2004Inventors: Robert W. Callahan, Mark G. Stevens, Muguo Chen
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Patent number: 6830821Abstract: A method for coating zinc, zinc plated, or steel articles with a hydroxy benzoic acid protective coating by coating a cleaned zinc, zinc plated, or steel with a hydoxy benzoic acid composition having a pH of about 2.0 to 5.0; and coating cleaned tin surfaced articles with a composition having a PH of 2.0 to 12.0, and the composition having as its essential ingredients proteins, amino acids, amino acid—protein compounds and amine alcohols; and the articles produced thereby along with the coated articles having an appropriate paint thereon.Type: GrantFiled: December 2, 2002Date of Patent: December 14, 2004Assignee: Sanchem, Inc.Inventor: John W. Bibber
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Publication number: 20040245114Abstract: A thermosetting composition that includes an ungelled copolymer composition and a crosslinking agent. The ungelled copolymer composition includes a functional group-containing copolymer that includes segments of alternating residues derived from a donor monomer composition comprising an acceptor monomer composition. The donor monomer composition includes one or both of isobutylene and diisobutylene, and the acceptor monomer composition includes acrylic monomers and monomers containing functional groups. The ungelled copolymer composition is substantially free of transition metals and Lewis acids, and the copolymer is substantially free of maleate-type monomer residues and fumarate-type monomer residues. The crosslinking agent has at least two functional groups that are reactive with the functional groups of the copolymer. The thermosetting composition may be in liquid, powder, or dispersed form and may be applied by traditional or electrocoating methods.Type: ApplicationFiled: July 9, 2004Publication date: December 9, 2004Inventors: Simion Coca, Edward R. Coleridge, Gregory J. McCollum, James B. O'Dwyer, James E. Poole, Victoria A. Trettel
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Patent number: 6818117Abstract: Disclosed is a method of preparing self-assembled monolayers on a metal comprising electrolyzing a thiosulfate compound in a solvent, where the electricity for the electrolysis is applied at a voltage for a period of time.Type: GrantFiled: March 7, 2002Date of Patent: November 16, 2004Assignee: California Institute of TechnologyInventors: Gregory S. Ferguson, Chen-Chan Hseuh, Mong-Tung Lee, Michael S. Freund
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Anodically formed intrinsically conductive polymer-aluminum oxide composite as a coating on aluminum
Patent number: 6818118Abstract: A method for forming a coating on aluminum by contacting the aluminum with water, at least one multifunctional polymeric organic acid, a monomer of an intrinsically conductive polymer and polymerizing the ICP monomer and forming aluminum oxide by imposing an electrical potential between the aluminum surface as the anode and a cathode. The intrinsically conductive polymer salt and aluminum oxide coating that is formed resists corrosion and is resistant to de-doping during immersion in hot water.Type: GrantFiled: September 18, 2001Date of Patent: November 16, 2004Assignee: McDonnell Douglas CorporationInventors: Patrick J. Kinlen, Lawrence M. Lawless, Vinod P. Menon -
Patent number: 6814845Abstract: Improved biosensors are provided having excellent selectivity and stability properties, together with methods of preparing the biosensors. A preferred biosensor includes an electrode (12) having enzyme (16) deposited thereon together with a layer of electropolymerized polymer (18) intermingled with the enzyme (16); a crosslinked silane film (20) is applied over the polymer layer (18), and a final coating (22) of polyurethane is formed over the film (20). In preparative procedures, the enzyme (16) is electrodeposited using an aqueous enzyme solution containing a nonionic surfactant at a concentration level preferably in excess of the critical micelle concentration of the surfactant. In the case of a glucose sensor, the polymer layer (18) is preferably polyphenol, while the silane film is crosslinked (3-aminopropyl) trimethoxysilane. The preferred biosensors have greatly enhanced selectivity stabilities.Type: GrantFiled: November 21, 2001Date of Patent: November 9, 2004Assignee: University of KansasInventors: George S. Wilson, Xiaohong Chen, Norio Matsumoto, Yibai Hu
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Patent number: 6806511Abstract: An electrochemical transistor device is provided, comprising a source contact, a drain contact, at least one gate electrode, an electrochemically active element arranged between, and in direct electrical contact with, the source and drain contacts, which electrochemically active element comprises a transistor channel and is of a material comprising an organic material having the ability of electrochemically altering its conductivity through change of redox state thereof, and a solidified electrolyte in direct electrical contact with the electrochemically active element and said at least one gate electrode and interposed between them in such a way that electron flow between the electrochemically active element and said gate electrode(s) is prevented. In the device, flow of electrons between source contact and drain contact is controllable by means of a voltage applied to said gate electrode(s).Type: GrantFiled: March 7, 2002Date of Patent: October 19, 2004Assignee: Acreo ABInventors: MÃ¥rten Armgarth, Miaoxiang Chen, David A. Nilsson, Rolf M. Berggren, Thomas Kugler, Tommi Remonen
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Publication number: 20040200729Abstract: An apparatus and method for improved control of low viscosity fluid flow during electrohydrodynamic spray deposition of the fluid to coat small targets, such as medical devices like stents. The apparatus includes a target holder which applies a first electrical potential to a target, a coating fluid transporter such as a wick, a siphon tube or a siphon tube with a wick therein along which the coating fluid flows from a reservoir to a dispensing end of the transporter, and an electrode which applied a second electrical potential to the coating fluid sufficient to cause the coating fluid to be attracted from the dispensing end of the transporter toward the target. This provides a target coating apparatus with highly self-regulating coating fluid flow characteristics despite the low viscosity of the coating fluid, while producing highly consistent and uniform target coatings.Type: ApplicationFiled: April 9, 2003Publication date: October 14, 2004Applicant: SCIMED Life Systems, Inc.Inventors: Dennis R. Boulais, Eric B. Stenzel
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Patent number: 6803097Abstract: The present invention is a film and method for making the same. The film includes a plurality of particles having a desired film property that are entrapped in a matrix of linkage polymer molecules. The linkage polymer molecules ionically bind to the particles. The linkage polymer molecules are electrochemically polymerizable in a solvent. The particles are insoluble in the solvent. The film is prepared by providing an electrode and a solution of the linkage polymer molecules in which the particles are suspended. An electrical potential is provided between the solution and the electrode in temporal sequence that causes the linkage polymer molecules to polymerize in the vicinity of the electrode thereby entrapping the particles.Type: GrantFiled: December 19, 2002Date of Patent: October 12, 2004Assignee: Agilent Technologies, Inc.Inventors: Daniel B. Roitman, Seiji Inaoka
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Patent number: 6800189Abstract: A conductive cap for use in an electronic component, has an opening at a bottom portion thereof, and is constructed to be fixed to the upper surface of a substrate of the electronic component at the opening portion of the cap so as to cover at least an electronic component element mounted on the upper surface of the substrate having terminal electrodes provided thereon. The end surface of the opening and the inner and outer surfaces thereof in connection to and in the vicinity of the end surface are provided with an insulating film disposed thereon.Type: GrantFiled: July 11, 2002Date of Patent: October 5, 2004Assignee: Murata Manufacturing Co., Ltd.Inventors: Toshiyuki Baba, Toshio Nishimura, Tsuyoshi Kitagawa, Jiro Inoue, Shoichi Kawabata
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Publication number: 20040185324Abstract: A cathode for a liquid fuel cell, which is covered with a film that is a liquid fuel barrier, but is permeable to oxygen, or for a direct methanol fuel cell, which is covered with a film that is a methanol barrier, but is permeable to oxygen. The fuel barrier may be made of the polymer of a macrocyclic compound having, in the same molecule, preferably three substituents that allow polymerization and crosslinking. The methanol barrier may be made of a polymerized porphyrin, wherein the porphyrin is chosen from among non-metallated and metallated porphyrins.Type: ApplicationFiled: April 13, 2004Publication date: September 23, 2004Inventors: Armand Bettelheim, Eliyaho Korin
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Publication number: 20040144655Abstract: Process for depositing by electrografting a strong adherent polymer coating onto an electrically conductive surface comprising the step of electrochemical grafting of an active monomer for forming a primer coating P onto the surface and having as general formula: X0 (meth)acrylate wherein X is either part of a preformed polymer or is an intermediate agent for polyaddition reaction or is an anchoring group for attachment of a molecule having at least one complementary reactive group. Such process allows formation of new primer by one-step electro-grafting of a macromonomer. Such process also allows further modification of an initial electrografted polymer to increase the coating thickness by the grafting-from technique. Such process also allows to graft onto the primer coating compounds like functional polymer, peptide, protein, oligonucleotide, dyes, drugs, anti-bacterian compounds.Type: ApplicationFiled: December 4, 2003Publication date: July 29, 2004Inventors: Olivier Bertrand, Robert Jerome, Sandrine Gautier, Veronique Maquet, Christophe Detrembleur, Christine Jerome, Samuel Voccia, Michael Claes, Xudong Lou, David-Emmanuel Labaye
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Publication number: 20040137239Abstract: The disclosure relates to a process for applying a multilayer protective coating to a substrate having an electrically conductive surface, comprising: (a) a first method of forming a silicate layer upon said electrically conductive surface, said first method comprising contacting at least a portion of said surface with a first medium comprising at least one silicate and having a basic pH and wherein said first medium is substantially free of chromates, to form a silicate layer, and (b) a second method of electrolytically applying a synthetic resin layer upon the surface of said silicate layer, said second method comprising contacting at least a portion of said surface of said silicate layer with a second medium comprising a resinous ingredient, applying an electric current to said second medium wherein said surface is employed as an electrode, to form a synthetic resin layer. The multilayer protective coating exhibits excellent corrosion and adhesion properties and is environmentally acceptable.Type: ApplicationFiled: November 14, 2003Publication date: July 15, 2004Inventors: Klaus-Peter Klos, Holger Manfred Grolmes
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Patent number: 6761813Abstract: A thermal interface material may be covalently bonded to a bottom surface of a heat dissipating device and/or a backside surface of a heat generating device. The heat dissipating device may be thermally coupled to the heat generating device, the thermal interface material disposed between the bottom surface of the heat dissipating device and the backside surface of the heat generating device. The thermal interface material may comprise a polymer material with thermally conductive filler components dispersed therein. For one embodiment, the thermally conductive filler components may be covalently bonded together. For one embodiment, the thermally conductive filler components may be covalently bonded with the polymer material.Type: GrantFiled: January 31, 2002Date of Patent: July 13, 2004Assignee: Intel CorporationInventor: Youzhi E. Xu
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Patent number: 6758957Abstract: Carbon nanoparticles including both nanofilaments and nanotubes produced by an electrochemical deposition method from organic solutions at room temperature, in which the formation and growth of carbon nanoparticles are stimulated by the catalyst, such as iron and nickel. It has been found that the electrochemical deposition conditions have a strong influence on the growth phenomenon of the carbon nanotubes. Scanning electron microscope (SEM) and transmitting electron microscope (TEM) characterizations show that the diameter of nanotubes is of the order of approximately 100 nm, and the length of filaments can be up to approximately 50 &mgr;m, depending on the size of catalyst particles.Type: GrantFiled: April 9, 2002Date of Patent: July 6, 2004Assignee: University of Central FloridaInventors: Dan Zhou, Lee Chow
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Publication number: 20040106032Abstract: Conductive polymer films are formed on the surfaces of a substrate made of a metal material by, preferably, electrolytic polymerization. Alternatively, passive-state layers are formed on the surfaces of a substrate and conductive polymer films are formed on the passive-state layers. It is desirable to form groove-like gas flow passages by bending the substrate before the execution of electrolytic polymerization or the formation of passive-state layers. In the electrolytic polymerization, it is desirable that electrolysis be performed by using the substrate as an electrolytic polymerization electrode. Therefore, a metal separator having conductive polymer coatings that are superior in contact resistance and corrosion resistance can be obtained. The manufacturing cost of a polymer electrolyte fuel cell can be reduced.Type: ApplicationFiled: August 19, 2003Publication date: June 3, 2004Applicant: THE JAPAN STEEL WORKS, LTD.Inventors: Hirokazu Uejima, Yoshihiko Yamamura, Shinichi Nishiya, Takashi Shibata
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Publication number: 20040099536Abstract: Provided are methods of producing an electrode capable of binding an analyte thereto comprising: providing a substrate capable of binding a dithiol molecule thereto; electrochemically treating the substrate using cyclic voltammetry to provide a treated substrate having a fractal dimension of greater than about 2; and contacting the treated substrate with dithiol molecules to produce an electrode having dithiol groups attached thereto and capable of binding an analyte to be detected thereto. Also provided are methods of accumulating and detecting analytes using the electrodes produced via the methods of the present invention.Type: ApplicationFiled: August 14, 2003Publication date: May 27, 2004Inventors: Rengaswamy Srinivasan, Hassan M. Saffarian, Peter F. Scholl, Plamen A. Demirev, Andrew B. Feldman
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Patent number: 6734260Abstract: The present invention provides a cationic coating composition capable of forming a coating film which is excellent in an electrodepositablly coating property and an adhesive property toward a rust preventive steel plate, a corrosion resistance and a low temperature curability. The cationic coating composition described above comprises as a vehicle component, a xylene-formaldehyde resin-modified, amino group-containing epoxy resin obtained by reacting an epoxy resin (A) having an epoxy equivalent of 180 to 2500 with a xylene-formaldehyde resin (B) and an amino group-containing compound (C).Type: GrantFiled: November 15, 2002Date of Patent: May 11, 2004Assignee: Kansai Paint Co., Ltd.Inventors: Shigeo Nishiguchi, Koji Kamikado, Susumu Midogochi, Akira Tominaga, Akihiko Shimasaki, Hideki Iijima
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Patent number: 6680122Abstract: The present invention provides a cationic paint composition which contains, as resin component, an amino group-containing epoxy resin obtained by making an epoxy resin having an epoxy equivalent of 300-2500 react with a hydroxyl group-containing carboxylic acid, which is prepared by allowing caprolactone to react to a hydroxyl group of a hydroxy monocarboxylic acid, and with an amino group-containing compound.Type: GrantFiled: November 28, 2001Date of Patent: January 20, 2004Assignee: Kansai Paint Co., Ltd.Inventors: Nishiguchi Shigeo, Kamikado Koji
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Patent number: 6669835Abstract: Aqueous compositions containing polymerizable components and a water incompatible catalyst for the polymerization reaction sorbed onto an inorganic particulate carrier, polymers produced thereby and articles coated with said polymers are provided. The invention also relates to water incompatible catalyst sorbed onto on an inorganic particulate carrier for aqueous coatings and the coatings produced by reactions catalyzed with the water incompatible catalyst sorbed onto an inorganic particulate carrier in an aqueous matrix.Type: GrantFiled: December 22, 1997Date of Patent: December 30, 2003Assignee: ATOFINA Chemicals, Inc.Inventor: William D. Honnick
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Patent number: 6660155Abstract: A process of coating the surface of articles made of glass pieces assembled in a came to minimize breakage of glass during application and hardening of the coating The process includes the steps of preprocessing the article, electrodepositing the coating on the article, and hardening the electrodeposited and coated article glass step-by-step.Type: GrantFiled: November 27, 2001Date of Patent: December 9, 2003Assignee: Korea Houghton CorporationInventor: Kwang Soon Kim
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Patent number: 6641711Abstract: An electrodeposition coating composition that is excellent in bath stability and that can give a cured film enhanced in hardness and an electrodeposition coating process is provided. An electrodeposition coating composition to be used in an electrodeposition coating process which comprises the electrodeposition step of immersing a substrate in an electrodeposition coating composition and applying a voltage between the substrate as an anode or cathode and a counter electrode to thereby form a film of said electrodeposition coating composition on the surface of the substrate, and the heating step of heating said film obtained in the above electrodeposition step, and said electrodeposition coating composition comprising having electrodeposition potentiality against the curing reaction of said film.Type: GrantFiled: August 16, 2001Date of Patent: November 4, 2003Assignee: Nippon Paint Co., Ltd.Inventors: Hiroyuki Sakamoto, Ichiro Kawakami, Koji Izumiya, Takao Saito, Masahiro Nishio
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Patent number: 6630064Abstract: A composition for electro-depositing polyimide membranes which can be patterned by photolithography, which are excellent in heat resistance, insulation performance and in chemical resistance. The composition for electrodeposition of polyimides according to the present invention comprises a composition for electrodeposition of polyimides comprising a photoacid generator, a positive-type photosensitive polyimide having oxycarbonyl groups in side chains, a polar solvent which dissolves said polyimide, water, a dispersing agent, and an alkaline neutralizer.Type: GrantFiled: March 30, 2001Date of Patent: October 7, 2003Assignee: PI R&D Co., Ltd.Inventors: Hiroshi Itatani, Shunichi Matsumoto
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Publication number: 20030164304Abstract: A device, system and method for diagnosing and treating gastric disorders is provided. A functional device resides within the patient's stomach and is secured to the stomach wall by an attachment device. The functional device may be a sensor for sensing various parameters of the stomach or stomach environment, or may be a therapeutic delivery device. The functional device in one embodiment provides a device, system and method for gastric electrical stimulation where stimulating electrodes are secured to the wall of the stomach by the attachment device or otherwise. A preferred device includes: at least one stimulating electrode in electrical contact with the stomach wall; an electronics unit containing the electronic circuitry of the device; and an attachment mechanism for attaching the device to the stomach wall. The functional devices may be programmed to respond to sensed information or signals.Type: ApplicationFiled: November 7, 2002Publication date: September 4, 2003Inventors: Mir A. Imran, Olivier K. Collion, Ted W. Layman, Sharon L. Lake
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Patent number: 6610418Abstract: The present invention provides electrodeposited copper foil with carrier which has an organic adhesive interface layer permitting control of the lower limit of peel strength between a carrier foil and an electrodeposited copper foil and to a method for producing the electrodeposited copper foil with carrier. In the electrodeposited copper foil with carrier including a carrier foil, an adhesive interface layer formed on the carrier foil, and an electrodeposited copper foil formed on the adhesive interface layer, the carrier foil is formed of a copper foil and the adhesive interface layer contains an organic agent and metallic particles, the organic agent and the metallic particles being in an intermingled state.Type: GrantFiled: November 7, 2001Date of Patent: August 26, 2003Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Junshi Yoshioka, Akiko Sugimoto, Makoto Dobashi, Ken-ichiro Iwakiri, Yutaka Hirasawa
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Publication number: 20030150739Abstract: A method of fabricating deposits of non-volatile substances, including biomacromolecules, in the form of spots and filing on a substrate surface by electrospray, where the deposits are used to determine the interaction of the deposited non-volatile substances to other substances. Also included in this method is the mass fabrication on a single chip of an array of single and multicomponent microsamples.Type: ApplicationFiled: March 3, 2003Publication date: August 14, 2003Applicant: New York UniversityInventors: Victor Morozov, Tamara Ya. Morozova
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Patent number: 6602395Abstract: Light emitters are formed and patterned on an electrode for an organic light-emitting device by electrochemically polymerizing a monomer across the full length of the electrode. A second electrode is deposited so to define a pixel region between mutually aligned portions of the two electrodes. Electroluminescence of the emitter occurs when a voltage is applied across the electrodes of the device.Type: GrantFiled: April 11, 2000Date of Patent: August 5, 2003Assignee: Innovative Technology Licensing, LLCInventors: Zhming Zhuang, Leslie F. Warren, Jr., George M. Williams, Jeffrey T. Cheung
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Publication number: 20030143453Abstract: The present invention provides conductive carbon nanotube (CNT) electrode materials comprising aligned CNT substrates coated with an electrically conducting polymer, and the fabrication of electrodes for use in high performance electrical energy storage devices. In particular, the present invention provides conductive CNTs electrode material whose electrical properties render them especially suitable for use in high efficiency rechargeable batteries. The present invention also provides methods for obtaining surface modified conductive CNT electrode materials comprising an array of individual linear, aligned CNTs having a uniform surface coating of an electrically conductive polymer such as polypyrrole, and their use in electrical energy storage devices.Type: ApplicationFiled: November 27, 2002Publication date: July 31, 2003Inventors: Zhifeng Ren, Jian Wen, Jinghua Chen, Zhongping Huang, Dezhi Wang
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Patent number: 6582583Abstract: The present invention provides a novel biosensor for the detection of chemicals of interest. The novel biosensor of the present invention comprises an electrode having a catalytically active cyclodextrin attached thereto. The present invention will be useful for the detection of materials in a wide variety of samples. In particular, the present invention will permit the detection of nitrophenyl esters.Type: GrantFiled: November 30, 1999Date of Patent: June 24, 2003Assignee: The United States of America as represented by the Department of Health and Human ServicesInventor: Ellen T. Chen
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Publication number: 20030102216Abstract: A process of coating the surface of articles made of glass pieces assembled in a came to minimize breakage of glass during application and hardening of the coating The process includes the steps of preprocessing the article, electrodepositing the coating on the article, and hardening the electrodeposited and coated article glass step-by-step.Type: ApplicationFiled: November 27, 2001Publication date: June 5, 2003Inventor: Kwang Soon Kim