Coating Is Predominantly Organic Material Patents (Class 205/317)
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Patent number: 6548144Abstract: A semispherical microstructure includes a substrate, an insulating mask layer, and an electrodeposition layer. The substrate has an electrically-conductive portion. The mask layer is formed on the electrode layer or electrically-conductive portion of the substrate and includes an opening formed in the mask layer to expose the electrically-conductive portion at the opening. The electrodeposition layer is formed of organic compound electrodeposited in the opening and on the mask layer around the opening.Type: GrantFiled: July 27, 1999Date of Patent: April 15, 2003Assignee: Canon Kabushiki KaishaInventors: Takayuki Teshima, Takayuki Yagi
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Publication number: 20030047461Abstract: A fuel-cell electrode and a method of manufacturing the fuel-cell electrode achieves a high catalyst utilization ratio and makes it possible to obtain higher output characteristics with a smaller amount of catalyst. The fuel-cell electrode includes a catalytic layer composed of an ion conductive substance, an electron conductive substance and catalytic activation substances. The catalytic activation substances are electrolytically deposited on the electron conductive substance.Type: ApplicationFiled: September 13, 2002Publication date: March 13, 2003Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tatsuya Kawahara, Seiji Mizuno, Takahiko Asaoka, Yu Morimoto, Kazuo Kawahara
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Publication number: 20030024823Abstract: 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: ApplicationFiled: March 7, 2002Publication date: February 6, 2003Inventors: Gregory S. Ferguson, Chen-Chan Hseuh, Mong-Tung Lee, Michael S. Freund
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Patent number: 6423774Abstract: The present invention is directed to an electrodepositable composition of a resinous phase dispersed in an aqueous medium. The resinous phase includes an ionic polyester polymer prepared from a) an aromatic and/or cycloaliphatic carboxylic acid compound having at least two aromatic and/or secondary aliphatic carboxyl groups, b) a branched aliphatic, cycloaliphatic or araliphatic compound containing at least two aliphatic hydroxyl groups, the aliphatic hydroxyl groups being either secondary or tertiary hydroxyl groups or primary hydroxyl groups attached to a carbon adjacent to a tertiary or quaternary carbon, c) a compound including an ionic salt group or a group which is converted to an ionic salt group, and d) optionally, at least one hydroxyl substituted carboxylic compound comprising at least one tertiary aliphatic carboxyl group and at least two aliphatic hydroxyl groups.Type: GrantFiled: March 21, 2000Date of Patent: July 23, 2002Assignee: PPG Industries Ohio, Inc.Inventors: Steven R. Zawacky, Raphael O. Kollah, Craig A. Wilson, Gregory J. McCollum, Robin M. Peffer, Geoffrey R. Webster, Jr., Venkatachalam Eswarakrishnan, Linda K. Anderson
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Publication number: 20020084194Abstract: An article coated with an electrolytically deposited bio-compatible composite layer useful as an internal prosthetic device is disclosed. The bio-compatible composite coating that is electrolytically deposited onto the article comprises hydroxyapatite and chitosan. The introduction of chitosan into the crystal matrix of brushite/hydroxyapatite significantly improves the adhesive and chemical and mechanical stability properties of the coating.Type: ApplicationFiled: December 27, 2001Publication date: July 4, 2002Applicant: The Board of Regents of the University of NebraskaInventor: Jody G. Redepenning
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Patent number: 6409907Abstract: A structure, e.g., a photonic band gap material, exhibiting substantial periodicity on a micron scale is provided. Fabrication involves the steps of providing a template comprising a colloidal crystal, placing the template in an electrolytic solution, electrochemically forming a lattice material, e.g., a high refractive index material, on the colloidal crystal, and then removing the colloidal crystal particles to form the desired structure. The electrodeposition provides a dense, uniform lattice, because formation of the lattice material begins near a conductive substrate, for example, and growth occurs substantially along a plane moving in a single direction, e.g., normal to the conductive substrate. Moreover, because the electrochemically grown lattice is a three-dimensionally interconnected solid, there is very little shrinkage upon subsequent treatment.Type: GrantFiled: February 11, 1999Date of Patent: June 25, 2002Assignee: Lucent Technologies Inc.Inventors: Paul VanNest Braun, Michael Louis Steigerwald, Pierre Wiltzius
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Patent number: 6391181Abstract: An article includes a colored electroplated metallic coating comprising both nickel and zinc, on an underplate of copper, brass, bright nickel or matt nickel, supported on a metallic or plastic substrate, various colors in the electroplated coating being exemplified. The electrolyte contains Ni2+, Zn2+, (NH4)+ and thiocyanate ions in specified concentrations, but no oxidative ion, color variation of the coating being achieved exclusively by variation of current density, time of the electroplating step and current quantity, provided that the current density at the cathode underplate is within the range of 0.01 to 0.5 A/dm2.Type: GrantFiled: August 31, 1999Date of Patent: May 21, 2002Assignee: Nickel Rainbow LimitedInventors: Larisa Gorodetski, Leonid Levinson
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Patent number: 6374737Abstract: A process for making printing plate material suitable for imaging by laser radiation. A metal substrate is electrocoated in a bath containing a polymeric resin and laser-sensitive particles, thereby depositing a laser ablatable layer on a principal surface of the metal substrate. In one embodiment, the laser-ablatable layer is treated with a corona discharge for a time sufficient to render the layer non-ink wettable. In other preferred embodiments, the laser-ablatable layer is overcoated with an overlayer such as a non-ink wettable silicone layer or a water-wettable layer comprising an organophosphorus polymer, preferably a copolymer of acrylic acid and vinylphosphonic acid.Type: GrantFiled: August 22, 2000Date of Patent: April 23, 2002Assignee: Alcoa Inc.Inventors: David S. Bennett, Sallie L. Blake, Robert E. Bombalski, Kenneth A. Bowman, Joseph D. Guthrie, Thomas L. Levendusky, Daniel L. Serafin, Jean Ann Skiles
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Patent number: 6375821Abstract: The invention concerns a method for forming a coating on conductive particles by grafting a polymer and/or a copolymer of the particles from a bath containing at least a monomer from which the polymer and/or copolymer is formed. The method consists of producing the grafting by electrochemical reduction of the monomer in an electrolytic solution, where at least a cathode and an anode are provided, and containing an aprotic solvent, a support electrolyte and the monomer(s) required for polymerizing or copolymerizing the coating, by suspending the particles and moving the solution so as to produce an intermittent contact between the particles and the cathode, and to form, by polymerization or copolymerization, the coating on the particles by applying an electric potential.Type: GrantFiled: June 19, 2000Date of Patent: April 23, 2002Assignee: Cipari S.A.Inventors: Robert Jerome, Lucien Martinot, Marc Mertens, Isabelle Bodart, Philippe Dubois
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Patent number: 6372357Abstract: An external component of an endoscope includes an aluminum alloy base member whose surface is subjected to anodic oxidation, and thereafter, is subjected to an electrolytic deposition thereon.Type: GrantFiled: September 21, 2000Date of Patent: April 16, 2002Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Shinji Hayakawa, Rensuke Adachi, Kunitoshi Ikeda, Masanao Abe
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Publication number: 20020020484Abstract: Methods for forming data storage media and the media formed thereby are disclosed herein. In one embodiment, the method for forming a data storage media, comprises: injection molding a substrate comprising surface features, wherein said surface features have greater than about 90% of a surface feature replication of an original master; and disposing a data layer over at least one surface of said substrate; wherein said data storage media has an axial displacement peak of less than about 500&mgr; under shock or vibration excitation.Type: ApplicationFiled: May 1, 2001Publication date: February 21, 2002Inventors: Thomas P. Feist, Wit C. Bushko, Herbert S. Cole, John E. Davis, Thomas B. Gorczyca, Joseph T. Woods
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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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Patent number: 6328873Abstract: Cathodic electrodeposition coating compositions containing, in addition to conventional self-cross-linking or external cross-linking film-forming binders as well as optionally cross-linking agents, pigments, extenders, additives conventionally used in coating agents and solvents, from 0.1 to 5 wt-%, based on the resin solids content of the coating compositions, of one or more sulphonamides, when coated on a galvanized surface, produce coatings that are substantially free of pinholes.Type: GrantFiled: March 30, 2000Date of Patent: December 11, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Klausjoerg Klein, Norbert David, Heinz-Peter Katzmann
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Anodically formed intrinsically conductive polymer-aluminum oxide composite as a coating on aluminum
Patent number: 6328874Abstract: 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 (ICP) 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: January 5, 1998Date of Patent: December 11, 2001Assignee: McDonnell Douglas CorporationInventors: Patrick J. Kinlen, Lawrence M. Lawless, Vinod P. Menon -
Patent number: 6325911Abstract: A method for making composites uses electrochemical polymer or copolymer coating of a carbon-based support by using a reaction system including (a) at least a monomer capable of forming a polymer on said support, (b) an aprotic solvent and (c) an electrolyte providing the resulting organic medium with an electrical conductivity for conducting therein electrolysis. The carbon support permanently forms the cathode, by applying either a potential or an electric current bringing the reaction system into the passivation zone corresponding to the first inhibition peak. The method forms a polymer grafted on the support.Type: GrantFiled: April 3, 2000Date of Patent: December 4, 2001Assignee: Cipari, SAInventors: Marc Mertens, Lucien Martinot, Robert Jerome
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Patent number: 6290830Abstract: The present invention provides electrodepositable compositions that in the absence of a microorganism control agent electrodeposit upon a surface of an electroconductive substrate as a substantially smooth film and which upon the addition of a microorganism control agent mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one result in an electrodepositable composition that upon electrodeposition onto the surface of the electroconductive substrate produces a comparatively rougher film, wherein all or a portion of the mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one is replaced with an aliphatic hydrocarbon material selected from halonitroalkanes, halonitroalkenes, hydroxyalkyl substituted nitroalkanes and mixtures thereof resulting in an electrodepositable compositions that upon electrodeposition onto the surface of the electroconductive substrate produce a substantially smooth film.Type: GrantFiled: October 29, 1999Date of Patent: September 18, 2001Assignee: PPG Industries Ohio, inc.Inventors: Alan J. Kaylo, Neil D. McMurdie
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Patent number: 6280587Abstract: On an insulating substrate 1 is formed an electrode 2 as a working electrode, on which is formed a binding layer 3 mainly consisting of &ggr;-aminopropyltriethoxysilane. On the binding layer are sequentially formed an immobilized enzyme layer 4 in which a catalytic enzyme is immobilized in an organic polymer and a permeation restricting layer 5.Type: GrantFiled: July 1, 1999Date of Patent: August 28, 2001Assignee: NEC CorporationInventor: Toru Matsumoto
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Publication number: 20010013473Abstract: The invention relates in general to a method of electroplating substrates where at least a portion of the substrate is coated with a solution containing a flhn forming amine and sufficient acid to produce a pH of less than 6.5. The acid helps to clean the surface of the substrate, and the film forming amine forms a film on the surface of the substrate. Electroplating proceeds with greatly improved speed and efficiency, especially in low current areas.Type: ApplicationFiled: February 8, 2001Publication date: August 16, 2001Inventor: James M. Taylor
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Patent number: 6242111Abstract: Disclosed is a method of making an anodized aluminum susceptor capable of withstanding an elevated temperature of 590° C., or a temperature as high as 475° C. in the presence of an NF3 plasma, without peeling or cracking, which preferably comprises selecting a high purity or low magnesium aluminum alloy, roughening the surface of the alloy, and then anodizing the surface roughened alloy in an electrolyte comprising an organic acid to form the desired anodized aluminum oxide coating thereon. Further, the invention comprises a high purity or low magnesium aluminum alloy susceptor and an organic acid anodic coating thereon highly resistant to spalling or cracking at elevated temperatures.Type: GrantFiled: September 8, 1993Date of Patent: June 5, 2001Assignee: Applied Materials, Inc.Inventors: Susan G. Telford, Craig Bercaw
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Patent number: 6229688Abstract: A water vapor discharge passage 10 formed of fine porous fluorocarbon resin having high water vapor permeability is provided in a chip type solid electrolytic capacitor having a capacitor element 1 and an anode terminal 2 and a cathode terminal 3 for external electric connection and encapsulated in a mold resin 4. The water vapor discharge passage communicates an interior of the capacitor element with atmosphere.Type: GrantFiled: August 16, 2000Date of Patent: May 8, 2001Assignee: NEC CorporationInventors: Atsushi Kobayashi, Akiyoshi Tainaka, Hideaki Sato
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Patent number: 6224735Abstract: A transparent support having formed thereon a transparent conductive film and an organic or inorganic semiconductor thin film that generates an electromotive force by irradiation of light formed on the transparent conductive film, and an aqueous electrolytic solution containing a solvent, a coloring material and a polymer electrodeposition material, whose solubility in the solvent changes depending on the change of pH are prepared; the substrate and a counter electrode connected to the substrate are arranged in such a manner that an surface of the substrate, on which the semiconductor thin film is formed, and the counter electrode are immersed in the aqueous electrolytic solution; the transparent support is selectively irradiated with light; an electrodeposition film having the coloring material and the polymer electrodeposition material is deposited on a part of the support, on which an electromotive force is generated; and the deposited electrodeposition film is brought into contact with an aqueous liquid hType: GrantFiled: May 24, 1999Date of Patent: May 1, 2001Assignee: Fuji Xerox Co. Ltd.Inventors: Eiichi Akutsu, Shigemi Ohtsu, Lyong sun Pu
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Patent number: 6218031Abstract: An anticorrosive film which can be formed without causing any substantial environmental pollution, can effectively prevent any corrosion from occurring through pinholes in a corrosive environment, allows the formation of a contact of high reliability maintaining a low contact resistance, and remains stable for a long time on the surface of a substrate having a gold or gold alloy layer without causing any variation in contact resistance, or undergoing any change in outward appearance. The film is formed by bringing the substrate surface into contact with an aqueous solution containing at least one of mercaptobenzothiazole and its derivatives as represented by the following formula at a concentration of 6 to 30 mmol/l.Type: GrantFiled: June 28, 1999Date of Patent: April 17, 2001Assignee: Japan Aviation Electronics Industry, Ltd.Inventors: Tadashi Shintani, Yasuhiro Yuzurihara
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Patent number: 6207034Abstract: A method of manufacturing a polymer transistor having a controllable gap is provided in an embodiment. In the embodiment, a conducting tip is positioned proximate to a conducting surface so as to form a gap, an electrochemical medium is introduced in contact with the conducting tip and the conducting surface, and an electrical potential is applied across the electrochemical medium so as to deposit a conductive polymer that electrically bridges the formed gap. In another embodiment, a counter electrode is provided in the electrochemical solution, facilitating processing in which the electrochemical potential at the conducting tip and at the conducting surface are the same and there is a return path for electrical current through the counter electrode. Repositioning of the tip during and after polymer deposition provides, in a further embodiment, adds additional capability with respect to gap control and polymer properties.Type: GrantFiled: December 3, 1998Date of Patent: March 27, 2001Assignee: Massachusetts Institute of TechnologyInventors: Peter Madden, John Madden, Ian W. Hunter
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Patent number: 6197179Abstract: The present invention relates to a novel process for coating objects by means of direct current, in which process an adjustable DC voltage is pulse-modulated with an adjustable AC voltage. The process is useful for electrochemical coating of objects with resinous coating material. Preferably, the pulse modulation of the DC voltage is limited to certain time intervals during the coating process and the pulse modulation is connected and disconnected with an adjustable duty ratio.Type: GrantFiled: September 17, 1997Date of Patent: March 6, 2001Assignee: BASF Coatings AGInventors: Klaus Arlt, Karin Eckert, Margaret Stockbrink, Rolf Schulte, Harald Berlin, Gerd Nienhaus
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Patent number: 6103082Abstract: A voltage is applied between a first and second electrode, the first electrode being immersed into an aqueous solution in which a group of two or more dyes having different polarities, and including at least one dye able to be independently precipitated from this aqueous solution by an electrochemical reaction, are dissolved and coexist at a specified pH, and the second electrode being provided so as to cooperate with the first electrode in causing the electrochemical reaction, thereby forming a first mixed color image which is composed of the group of dyes, or another mixed color image whose colors are different to those of the first mixed color image and which is composed of the group of dyes, or a single color image which is composed of a single dye on the electrode. Thus, it is possible to realize a high quality image using dyes and safely and simply record an image at a high levels of flexibility.Type: GrantFiled: May 26, 1998Date of Patent: August 15, 2000Assignee: Fuji Xerox Co., Ltd.Inventors: Shigemi Ohtsu, Satoshi Tatsuura, Eiichi Akutsu, Lyong Sun Pu
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Patent number: 6061109Abstract: A method of manufacturing a color filter for a multicolor liquid crystal display unit comprises the steps of forming an organic high-polymer color filter layer over a surface of a substrate. A protective film is then formed on the color filter layer and on the surface of the substrate. Thereafter, a thin metal electroless plating film is formed on the protective film. The electroless plating film is then patterned to form a shading film.Type: GrantFiled: March 28, 1996Date of Patent: May 9, 2000Assignee: Seiko Instruments Inc.Inventors: Mitsuru Suginoya, Tsutomu Matsuhira, Toshihiko Harajiri
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Patent number: 5997714Abstract: The invention provides a material coated with an organic film which exhibits excellent corrosion resistance and lacquer adhesion. The invention includes an electroconductive substrate coated with an electrolytically polymerized coating film containing chromium. Particularly, a zinc-type plated steel sheet coated with an electrolytically polymerized coating film containing chromium in accordance with the invention is well suited for application in vehicle bodies. The invention further provides a method of making a material coated with an organic film which involves forming organic coating material containing chromium on an electroconductive substrate acting as an electrode by electrolytically polymerizing an organic monomer in an electrolyte solution containing chromium. The method provides a monolithic composite structure comprising chromium compounds and an organic coating film, and avoid the problems associated with passivation after chromium plating of steel.Type: GrantFiled: October 30, 1996Date of Patent: December 7, 1999Assignee: Kawasaki Steel CorporationInventors: Kyoko Hamahara, Hisatada Nakakoji, Tomokatsu Katagiri, Shuichi Asahina, Kazuo Mochizuki
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Patent number: 5980723Abstract: A process for forming polymer films through electrochemical techniques utilizing electrolytes which include conductive polymer. The resulting polymer films are electrically conductive and corrosion and wear resistant. Poyamino-benzene (polyaniline), for example, undergoes an insulator-to-metal transition upon doping with protonic acids in an acid/base-type reaction. Composite polymer-aluminum oxide films may be formed by modifying the anodizing electrolyte, resulting in the codeposition of polyaniline during aluminum anodization. A nonprotonated, ring-sulfonated aluminum salt of polyaniline was determined to be the reaction product within the aluminum oxide phase of the codeposited films. A second process, which incorporates electrochemical sealing of the anodic layer with polyaniline, was also developed.The formation of these composite films is documented through experimental processing, and characterized through scientific analysis and engineering tests.Type: GrantFiled: August 27, 1997Date of Patent: November 9, 1999Assignee: Jude Runge-MarcheseInventors: Jude Mary Runge-Marchese, Michael McNallan
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Patent number: 5951840Abstract: The solid electrolytic capacitor comprises a sealed capacitor element having, as a solid electrolyte layer, a heat resistant conductive layer formed on a dielectric oxide film. The heat resistant conducting polymer layer contains water, and the capacitor element inside is substantially oxygen-free. A cathode conductive layer is provided on the capacitor element and then both an external cathode lead and an external anode lead are mounted on the capacitor element. Water is supplied to the conducting polymer layer of the capacitor element such that the conducting polymer layer inside contains water. The capacitor element is then sealed such that water is held within the heat resistant conducting polymer layer and that the capacitor element inside is substantially oxygen-free. The step of supplying water is carried out by dipping the heat resistant conducting polymer layer in water or heavy water or exposed to water-containing inert gas.Type: GrantFiled: December 28, 1995Date of Patent: September 14, 1999Assignee: NEC CorporationInventors: Takashi Fukaumi, Toshihiko Nishiyama, Atsushi Kobayashi, Masashi Ohi, Eishun Tsuchida, Kumihisa Yamamoto, Shinji Takeoka, Yoshitaka Fujishima
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Patent number: 5827417Abstract: An electrochemical method for forming a partial monomolecular layer of a predetermined extent of coverage of a thiolate of the formula, XRS--, therein R can be a linear or branched chain hydrocarbon or an aromatic or the like and X can be any compatible end group, e.g., OH, COOH, CH.sub.3 or the like, upon a substrate such as gold, which involves applying in an electrochemical system a constant voltage preselected to yield the desired predetermined extent of coverage.Type: GrantFiled: February 10, 1997Date of Patent: October 27, 1998Assignee: Iowa State University Research Foundation, Inc.Inventors: Marc D. Porter, Duane E. Weisshaar
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Patent number: 5820742Abstract: An electrodeposition coating method characterized in that in electrodeposition coating of a water soluble composition of a polyimide precursor which is prepared by using 1,2,3,4-butanetetracarboxylic acid or its imide-forming derivative and a diamine and has a percentage of residual acid value of 30 to 3%, there is added previously a water soluble solvent selected from the group consisting of an alcoholic solvent, N-methyl-2-pyrrolidone, dimethylformamide and dimethylacetamide to the above-mentioned composition, and an electrodeposition coating agent used therefor. There can be provided the electrodeposition coating method practicable for the use of a water soluble polyimide composition which is capable of forming a uniform baked coating film having a continuous surface and being excellent in adhesivity to substrate and in toughness.Type: GrantFiled: May 23, 1996Date of Patent: October 13, 1998Assignee: Daikin Industries, Ltd.Inventors: Shin-i-ti Oda, Toshihide Okamoto, Hiroshi Yokota, Kenjiro Hayashi, Kazufumi Hamabuchi, Toshio Mizuno
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Patent number: 5810989Abstract: A method of photoelectro-synthesizing probe arrays including the steps of providing a photoconductive layer of material having a layer of electrically conductive material on a first surface thereof and a solution of a plurality of a first oligonucleotide modified monomer positioned in electrical contact with an opposing second surface thereof such that a potential is connected therebetween. A beam of light is directed through a portion of the photoconductive layer of material to complete an electrical circuit between the layer of electrically conductive material and the solution through the portion of the photoconductive layer, whereby the monomers in the solution are electropolymerized on a surface area which is coupled into the electrical circuit by the beam of light.Type: GrantFiled: September 4, 1997Date of Patent: September 22, 1998Assignee: Motorola, Inc.Inventors: Michael Krihak, Chan-Long Shieh, Hsing-Chung Lee
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Patent number: 5773090Abstract: A process for coating phosphated metal substrates with one or more organic coatings, in which after phosphating and before application of a first organic coating, the phosphated metal substrates are treated with an aqueous solution which contains 5 to 10000 ppm of dissolved titanium, vanadium, molybdenum, silver, tin, antimony and/or one or more elements of atomic numbers 57 to 83 in the form of inorganic and/or organic compounds, wherein the phosphated metal substrates are additionally connected as a cathode during the entire treatment or for part of the duration of the treatment.Type: GrantFiled: February 26, 1997Date of Patent: June 30, 1998Assignee: Herberts Gellschaft mit Beschrankter HaftungInventors: Gabriele Buttner, Matthias Kimpel, Klausjorg Klein
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Patent number: 5770642Abstract: Cathodic electrodeposition paints of the type in which a cationically modified epoxy resin is crosslinked with a blocked polyisocyanate crosslinker are disclosed. The paint contains a cationically modified epoxy resin having at least one oxazolidone ring in the molecule and a Tg ranging between 0.degree. C. and 35.degree. C., and a blocked alicyclic polyisocyanate. The use of lead based anticorrosive pigments may be eliminated or substantially reduced. When the alicyclic polyisocyanate is a bicycloalkane polyisocyanate, the use of organic solvent may also be reduced.Type: GrantFiled: February 28, 1997Date of Patent: June 23, 1998Assignee: Nippon Paint Co., Ltd.Inventors: Hirotaka Kanato, Makoto Ando, Yoshio Kojima, Mitsuo Yamada, Ryoichi Murakami
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Patent number: 5762772Abstract: The transmittance of ionic dye molecules through a thin electrically conductive high polymer film is controlled to vary between at least two states of the film as selected from among oxidized, neutral and reduced states, such that the ionic dye molecules are transferred onto a recording medium, thereby forming an image. A surface of a substrate having fine pores through which the ionic dye molecules can pass is provided with the thin electrically conductive high polymer film to fabricate a cylindrical printing unit 16, which is provided in a face-to-face relationship with an electrode unit 17 such that a voltage can be applied therebetween. The printing unit 16 is filled with a solution 21 containing ionic dye molecules. When electrodes in the electrode unit 17 are supplied with a potential pattern that brings the electrically conductive high polymer to an oxidized state, the ionic dye molecules are released from the printing unit 16 to form a one-dimensional image on a moving sheet of paper 17.Type: GrantFiled: September 4, 1996Date of Patent: June 9, 1998Assignee: Fuji Xerox Co., Ltd.Inventors: Takao Tomono, Makoto Furuki, Shigemi Ohtsu, Lyong Sun Pu
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Patent number: 5728283Abstract: The invention relates to aqueous eletrocoating ?sic! compositions containing cathodically depositable synthetic resins, which electrocoating compositions are characterized in that they contain polymer microparticles which have a particle size of 0.01 to 10 .mu.m and are preparable by reacting(a) a polyisocyanate or a mixture of polyisocyanates with(b) an organic compound containing not only at least one ethylenically unsaturated double bond but also at least one active hydrogen atom per molecule or a mixture of such organic compounds and(c) an organic compound containing not only at least one active hydrogen atom but also at least one tertiary amino group and/or at least one ketimine group and/or at least one aldimine group per molecule or a mixture of such organic compounds and, if desired,(d) an organic compound other than (b) and (c) containing at least one active hydrogen atom per molecule or a mixture of such organic compounds.Type: GrantFiled: August 26, 1996Date of Patent: March 17, 1998Assignee: BASF Lacke + Farben, AGInventors: Hardy Reuter, Gunther Ott, Walter Jouck
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Patent number: 5714053Abstract: A method for making high power electrochemical capacitors (20) provides for depositing an electrically conducting polymer (24) onto a metal substrate (22). The electrically conducting polymer is initially grown in the presence of a soft anion, i.e., an anion having a high degree of polarizability. Subsequently, the polymer is treated with a relatively hard anion which at least partially replaces the soft anion in the polymer. The result is an electrochemical charge storage device which has enhanced electrochemical properties.Type: GrantFiled: October 15, 1996Date of Patent: February 3, 1998Assignee: Motorola, Inc.Inventor: Jason N. Howard
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Patent number: 5676814Abstract: Disclosed is a method of producing an electrically conductive polymer composite comprising a general-purpose resin layer and an electrically conductive layer, wherein the conductive layer is formed on at least one surface of the general-purpose resin layer, the method comprising the steps of forming the conductive layer on at least one internal surface of a mold, introducing into the mold a raw solution of the general-purpose resin comprising a monomer polymerizable without condensation reaction, and subjecting said monomer to polymerization in said mold to provide the general-purpose resin layer.Type: GrantFiled: March 29, 1995Date of Patent: October 14, 1997Assignee: Sumitomo Chemical Company, LimitedInventors: Satoshi Honda, Hideaki Matsuura
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Patent number: 5639361Abstract: Binder systems suitable for electrodeposition coating and based on basic, thermally crosslinkable epoxy or polyurethane resins as binders (B), containing from 0.001 to 1% by weight of a polymer (I) whose predominant components are ethyl acrylate and/or n-propyl acrylate, based on the overall solids content of the binder system.Type: GrantFiled: October 3, 1995Date of Patent: June 17, 1997Assignee: BASF Lacke + Farben, AGInventors: Klaus Humke, Udo Strauss, Hans Schupp, Thomas Schwerzel, Dieter Faul, Helmut Fobbe
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Patent number: 5605993Abstract: It concerns a monomer, a polymer obtained from the monomer and a process for obtaining the said polymer. The monomer consists of a polyether containing at least 3 ether units and pyrrole or thiophene units bonded to the ends of the chains of this polyether via, for each of these heterocycic compounds, either their carbon atoms in the 3,3'-positions of their heterocycles or, as regards more particularly the pyrrole groups, via their respective nitrogen atoms, the 2- and 2'-positions of these heterocycles being, however, free of all substitutions or, at the very most, substituted by easily removable groups (protective groups, for example).Application to the purification and recovery of metal ions such as radioactive silver.Type: GrantFiled: June 7, 1995Date of Patent: February 25, 1997Assignee: Electricite De France-Service NationalInventor: Olivier LeClerc
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Patent number: 5591318Abstract: A method for making high power electrochemical charge storage devices, provides for depositing an electrically conducting polymer (16), (18), onto a non-noble metal substrate (10), which has been prepared by treatment with a surfactant. Using this method, high power, high energy electrochemical charge storage devices may be fabricated with highly reproducible low cost.Type: GrantFiled: February 1, 1996Date of Patent: January 7, 1997Assignee: Motorola Energy Systems, Inc.Inventors: Changming Li, Ke K. Lian, Han Wu
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Patent number: 5589527Abstract: A pigment grinding resin of the formula: ##STR1## wherein, Ep is a residue of an epoxy resin having an epoxy equivalent of 150 to 2000 and a hydroxyl group equivalent of 300 to 4000; R.sup.1 represents a hydrophilic group selected from a 2-hydroxyethyl group and a group of the formula --CH.sub.2 CH(OH)CH.sub.2 R.sup.3 wherein, R.sup.3 is a hydroxyl group or a hydroxylalkyl group having 1 to 10 carbon atoms; R.sup.2 represents a hydrophilic group selected from 3-hydroxypropyl, 2-hydroxypropyl and 4-hydroxybutyl; R.sup.4 is a hydrogen atom or an alkyl, hydroxylalkyl or alkylamide group having 1 to 5 carbon atoms; m is a numerical value of 0.1 to 2.0; A is residue of a diisocyanate; B is a residue of an alcohol, an amine, a carboxylic acid, an oxime and a caprolactam having 1 to 20 carbon atoms; and n is a numerical value of 10.1 to 2.0. The pigment grinding resin of the present invention has excellent dispersibility.Type: GrantFiled: January 9, 1995Date of Patent: December 31, 1996Assignee: Nippon Paint Co., Ltd.Inventors: Mitsuo Yamada, Hiroyuki Nojiri
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Patent number: 5580436Abstract: A liquid crystal optical device is comprised of a liquid crystal layer and a pair of substrates for sandwiching the liquid crystal layer to effect orientation of molecules of the liquid crystal layer. A plurality of base electrodes are disposed on an inner surface of one of the substrates. A plurality of color filter films are electrodeposited on the respective ones of the base electrodes and have different color tones. A plurality of driving electrodes are disposed on the color filter films for applying a driving voltage to the liquid crystal layer. A protective layer is interposed between the color filter films and the driving electrodes to effect buffering of thermal stress caused therebetween.Type: GrantFiled: August 3, 1989Date of Patent: December 3, 1996Assignee: Seiko Instruments Inc.Inventors: Mitsuru Suginoya, Hitoshi Kamamori
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Patent number: 5578188Abstract: A film of a composite material is deposited by electropolymerization onto electrically conductive surface. A mixture comprising a monomer, a substance forming a dopant, a supporting electrolyte and a solvent is subjected to electrolysis in which the conductive surface to be coated is used as either cathode or anode. The cathode or anode is polarized to a potential between the electron transfer between the electrically conductive surface and the monomer. Prior to electrolysis, a solution is made from the mixture containing the substance forming a dopant either as anion, cation, molecule, and/or as undissociated complex.Type: GrantFiled: March 31, 1994Date of Patent: November 26, 1996Assignee: "Recherche et Developpment du Groupe Cockerill Sambre" en abrege "RD-CS"Inventors: Marc Mertens, Lucien Martinot, Cedric Calberg, Robert Jerome, Jean Schrijnemackers
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Patent number: 5567297Abstract: A process for depositing by electropolymerization an organic film onto an electrically conductive surface, wherein use is made of a mixture comprising (a) at least one monomer suited for forming a polymer onto said surface, (b) at least one material which can be linked to said polymer, (c) a supporting electrolyte and (d) a solvent, said process comprising the use, as material to be linked to said polymer, of a reactive substance which can react chemically with the growing polymeric chains formed starting from the monomer.Type: GrantFiled: January 19, 1995Date of Patent: October 22, 1996Assignee: Recherche et Developement du Groupe Cockerill Sambre en abrege: "RD-CS"Inventors: Marc Mertens, Cedric Calberg, Lucien Martinot, Robert Jerome, Jean Schrijnemackers
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Patent number: 5540828Abstract: A method for making a sensing element for use in a sensor or biosensor that amperometrically measures the concentration of an analyte in a liquid, includes the following sequential steps: a) obtaining an electrode; b) immersing the electrode in a solution of monomer that is capable of being electropolymerized into an electrically insulating polymer; c) flowing an electric current from a cathode through the solution to the electrode at a voltage and amperage sufficient to cause the monomer to polymerize on the surface of the electrode, thereby yielding an electrode coated with an adherent layer of electrically insulating polymer; and e) impregnating the polymeric coating on the surface with a sensing agent that is capable, when contacted by a specific analyte in a chemical or biological liquid, of generating an electroactive molecule that can be detected amperometrically.Type: GrantFiled: February 15, 1994Date of Patent: July 30, 1996Inventor: Alexander Yacynych
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Patent number: 5522981Abstract: The invention relates to a process for depositing a thin adhesive coating of polypyrrole on the surface of an article made of oxidizable metal, by electropolymerization of an aqueous or aqueous-alcoholic electrolytic solution of pyrrole and/or of one or more substituted pyrroles, in which the anode of the electropolymerization device consists of the article made of oxidizable metal, in which the solution contains ions selected from the ions of formula: ##STR1## in which X is selected from O, S and NH,R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are selected, independently of each other, from --H, --Cl, --Br, --F, --I, --OH, --SH, --NH.sub.2, --CHO, --COOH, --SO.sub.3 H and derivatives thereof, aryl groups, C.sub.1 to C.sub.20 alkyl groups, aralkyl groups and alkylaryl groups, these groups possibly being substituted with one or more groups selected from --OH, --SH, --NH.sub.2, --CHO, --COOH, .dbd.O, --CONH.sub.2, --N(X,X',X").sup.+, epoxy or C.sub.1 -C.sub.6 alkoxy, or together possibly forming a ring structure.Type: GrantFiled: December 20, 1994Date of Patent: June 4, 1996Assignee: SollacInventors: Pierre C. Lacaze, Jacques Petitjean, Salah Aeiyach, Hedayatullah Mir
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Patent number: 5514262Abstract: The electrochemical method of this invention allows deposition of an electrically conductive trans-polyacetylene film on a substrate from a solution comprising substantially dehydrated ethyl alcohol.Type: GrantFiled: May 5, 1995Date of Patent: May 7, 1996Assignee: Ford Motor CompanyInventors: Ching-Hsong Wu, Michael A. Tamor
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Patent number: 5503732Abstract: A method for manufacturing a substrate useful as a color filter for LCD and having window-shaped coating films and a frame-shaped, functional coating film at the regions not occupied with the window-shaped coating films, which comprises the steps of:(a) forming a functional coating film on a transparent substrate having electrically conductive circuits on a surface thereof,(b) superposing a photomask having a predetermined pattern on the surface of the coating film formed in step (a), and exposing the thus masked coating film to light,(c) subjecting the intermediate product to developing to leave a frame-shaped coating film, and(d) subjecting the resulting substrate formed through steps (a) to (c) to electro-deposition to form electro-deposition coating films on the electrically conductive circuits, enables production of coating films of fine pattern with improved precision.Type: GrantFiled: July 12, 1994Date of Patent: April 2, 1996Assignee: Shinto Paint Co., Ltd.Inventors: Susumu Miyazaki, Tsuyoshi Nakano, Yoshikatsu Okada, Yasuhiko Teshima, Miki Matsumura
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Patent number: 5492614Abstract: A method of electrocoating an electroconductive substrate utilizes an aqueous electrocoating composition containing an electrodepositable water dispersible film forming polymer and a pigment grind composition. The pigment grind composition contains pigment, electrodepositable water dispersible acrylic polymer and a reactive diluent. The reactive diluent has a number average molecular weight of between about 200 and about 2500 and is selected from polyalkylene glycols, polyalkylene glycol ethers, glycol ether formals or mixtures of these. The pigment grind composition has a volatile organic content of less than two pounds per gallon. The method is particularly suitable for anodic electrodeposition.Type: GrantFiled: May 25, 1994Date of Patent: February 20, 1996Assignee: PPG Industries, Inc.Inventors: Steven R. Zawacky, Jeffrey G. Koren, Mark L. Follet, Patricia A. Aikens