Metal Base Patents (Class 427/327)
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Patent number: 6881491Abstract: An aluminum alloy article is cleaned to remove oxides and organic matter from a coatable surface, coated with a composition comprising an organic resin and a fluorine compound, and then heated to an elevated temperature to decompose the organic resin and at least a portion of the fluorine compound. After heating the coated surface is left with a protective oxyfluoride film that prevents blistering and hydrogen pickup and promotes hydrogen degassing from the article.Type: GrantFiled: May 16, 2003Date of Patent: April 19, 2005Assignee: Alcoa Inc.Inventors: Sally A. Jankosky, Susanne M. Opalka, Paula L. Kolek, Joseph P. Harenski, Roger W. Kaufold, Larry F. Wieserman
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Patent number: 6881452Abstract: A thermal barrier coating system having an improved life as a result of a preoxidation treatment applied to a single phase platinum aluminide bond coat. After coating the substrate to form a diffusion platinum aluminum bond coat, the surface finish of the bond coat was grit blasted with an inert grit of preselected size at a preselected pressure to achieve a predetermined surface finish. After the grit blasting, but before application of the ceramic top coat of yttria-stabilized zirconia (YSZ), the coating was preoxidized to form a thin alumina scale by heat treating the diffusion platinum aluminide bond coat at an elevated temperature at a preselected partial pressure of oxygen.Type: GrantFiled: July 6, 2001Date of Patent: April 19, 2005Assignee: General Electric CompanyInventor: Irene Spitsberg
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Patent number: 6872425Abstract: A method of coating a vehicle wheel to increase wear and corrosion resistance of the vehicle wheel, includes the steps of providing a vehicle wheel and applying a wear and corrosion resistant coating onto a surface of the vehicle wheel. The coating is applied to at least a tire bead retaining flange of the vehicle wheel. The coating is of particular use with vehicle wheels made of forged aluminum. The coating is selected from tungsten carbide, optionally including cobalt or chrome, a nickel-based superalloy, aluminum and silicon carbide, or stainless steel. The coating is typically applied to a thickness of about 0.004-0.01 inch. The surface of the vehicle wheel may be prepared by mechanically abrading the surface or chemically etching the surface of the vehicle wheel. The coating may be applied by cold spraying, thermal spraying, or triboelectric discharge kinetic spraying and other similar processes.Type: GrantFiled: September 25, 2003Date of Patent: March 29, 2005Assignee: Alcoa Inc.Inventors: Roger W. Kaufold, Neville C. Whittle, Edward P. Patrick, A. Victor Pajerski
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Patent number: 6838118Abstract: The present invention provides a method for coating bare, untreated metal substrates wherein a coating composition comprising one or more particularly defined additives is applied directly to a bare metal substrate which has not been chemically and/or mechanically altered. The invention provides a method of coating a bare untreated metal substrate. The method requires the steps of (i) providing a bare, untreated metal substrate, the substrate being substantially free of mechanical and/or chemical alterations, (ii) applying a two-component urethane coating composition directly to the bare, untreated metal substrate so as to make a coated metal substrate, and (iii) sanding at least a portion of the coated metal substrate within one hour from the time the two-component urethane coating composition was applied to the bare, untreated metal substrate. The resulting coated metal substrate has an initial adhesion loss of less than 20% as measured by a cross hatch adhesion test per ASTM D-3359 93.Type: GrantFiled: November 12, 2002Date of Patent: January 4, 2005Assignee: BASF CorporationInventors: David L. Newton, William H. Plassmann
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Patent number: 6827810Abstract: A process for surface pretreatment, including providing a clean metal surface which is aluminum or an aluminum alloy; applying a composition including an organosilane to the clean metal surface to form a coated surface; and exposing the coated surface to a laser which produces an elevated temperature on the coated surface.Type: GrantFiled: December 5, 2001Date of Patent: December 7, 2004Assignee: Huntsman Advanced Materials Americas Inc.Inventor: Jochem Sauer
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Patent number: 6827969Abstract: A chemical composition and method for repairing a thermal barrier coating on a component designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method repairs a thermal barrier coating on a component that has suffered localized damage to the thermal barrier coating. After cleaning the surface area of the component exposed by the localized spallation, a mixture of a ceramic composition comprising a ceramic powder in a binder is applied, preferably by spraying, to the surface area of the component. The binder is then allowed to dry to form a dried coating. Upon subsequent heating, the dried coating reacts to produce a ceramic-containing repair coating, wherein the coating comprises the ceramic powder in a matrix of a material formed when the binder was reacted. The binder is preferably a ceramic precursor material that can be converted immediately to a ceramic or allowed to thermally decompose over time to form a ceramic.Type: GrantFiled: December 12, 2003Date of Patent: December 7, 2004Assignee: General Electric CompanyInventors: Andrew Jay Skoog, Jane Ann Murphy, William Randolph Stowell, Timothy Ray Lattire
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Publication number: 20040234787Abstract: A method, a composition and a method for making the composition for increasing the corrosion resistance of a magnesium or magnesium alloy surface is disclosed. The composition is a water/organic solution of one or more hydrolyzed silanes. By binding silane moieties to the magnesium surface, an anti-corrosion coating on a magnesium workpiece is produced. A complementary method, composition and method for preparing the composition for treating a metal surface to increase corrosion resistance is disclosed. The composition is an aqueous hydrogen fluoride solution with a non-ionic surfactant.Type: ApplicationFiled: June 23, 2004Publication date: November 25, 2004Applicant: ALONIM HOLDING AGRICULTURAL COOPERATIVE SOCIETY LTD.Inventor: Ilya Ostrovsky
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Patent number: 6815003Abstract: A method for fabricating an electrode for lithium secondary battery formed by depositing a thin film composed of active material capable of lithium storage and release, on a metallic foil to be used as a current collector, in which the surface of the metallic foil is roughened through wet-etching and then the thin film is deposited on the roughened surface.Type: GrantFiled: November 29, 2001Date of Patent: November 9, 2004Assignee: Sanyo Electric Co., Ltd.Inventors: Hiromasa Yagi, Koji Endo, Hisaki Tarui, Hiroshi Okano, Shingo Nakano
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Patent number: 6811818Abstract: A process and apparatus for painting vehicle bodies in which the bodies are moved past at least one paint-applying application device with the aid of a conveyor system, said application device for its part being guided by an application machine, and in which faces of the vehicle body which have different inclinations are painted.Type: GrantFiled: January 17, 2002Date of Patent: November 2, 2004Assignee: Eisenmann Maschinenbau KGInventors: Gernot Herwig, Wolf-Hasso Schaefer
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Patent number: 6805906Abstract: A process of coating a refractory turbine part with a protective coating which is ultimately diffusion bonded to the part. A slurry coating material is prepared from a mixture of a silicon alkyd paint and suspended particles of an aluminum or aluminum alloy powder. Parts may be dipped in the slurry and subsequently be heat treated in selected atmospheres and temperatures to diffuse the coating into the surface of the part.Type: GrantFiled: March 8, 2002Date of Patent: October 19, 2004Assignee: Liburdi Engineering LimitedInventors: Vladimir Moravek, Paul Lowden, Joseph Liburdi
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Patent number: 6803074Abstract: A metal compound solution in the atomized state is introduced directly into a film-forming chamber of which the pressure is maintained at about 100 Torr or lower by mean of a two-fluid nozzle to form a complex oxide thin-film. For use in the two-fluid nozzle, gases including an oxidative gas are used. To dissolve the metal compound, a solvent having a boiling point under ordinary pressure of about 100° C. or higher is used.Type: GrantFiled: July 27, 2001Date of Patent: October 12, 2004Assignee: Murata Manufacturing Co. LtdInventor: Yutaka Takeshima
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Patent number: 6802913Abstract: A multipurpose treatment composition for metal surfaces comprises phosphate ions, fluorometallate ions, water soluble polymers containing substituted aminomethylene moieties bonded to benzene rings which also have an oxygen atom bonded to another carbon atom in the same ring, and a distinct kind of film-forming polymer. The compositions are free from chromium and other heavy metals that cause serious pollution problems in some prior art treatment compositions.Type: GrantFiled: April 14, 2000Date of Patent: October 12, 2004Assignee: Henkel Kommanditgesellschaft aut AktienInventors: Bruce H Goodreau, Thomas J Prescott
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Patent number: 6800326Abstract: A method for treating surfaces of titanium or titanium alloys which includes the steps of applying a treatment for removing surface adhesion substances from the surface and then forming a transparent protective layer on the surface.Type: GrantFiled: June 29, 2000Date of Patent: October 5, 2004Assignee: Seiko Epson CorporationInventor: Akira Uchiyama
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Patent number: 6797328Abstract: An aqueous composition suitable for use, when dry, as an improved coating is provided including an aqueous emulsion polymer, the polymer having a glass transition temperature (Tg) from greater than 20° C. to 80° C., formed by the free radical polymerization of at least one ethylenically unsaturated nonionic acrylic monomer and 0-7.5%, by weight based on the total weight of the polymer, ethylenically unsaturated acid monomer in the presence of 0.01-1.0%, by weight based on the total weight of the polymer, t-alkyl hydroperoxide, t-alkyl peroxide, or t-alkyl perester wherein the t-alkyl group includes at least 5 Carbon atoms and, optionally, at least one other oxidant. A method of preparing the emulsion polymer, a method for providing a coated substrate wherein the coating contains the emulsion polymer having a Tg from −20° C. to 80° C., and a method for improving the scrub resistance of a coating by including the emulsion polymer having a Tg from −20° C. to 80° C.Type: GrantFiled: January 23, 2003Date of Patent: September 28, 2004Assignee: Rohm and Haas CompanyInventors: Albert Benner Brown, Ralph Craig Even, Dennis Paul Lorah, Alvin Michael Maurice, Robert Victor Slone, Xun Tang
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Patent number: 6787192Abstract: A process for preparing a treated magnesium and/or magnesium alloy component comprising (A) treating the magnesium and/or magnesium alloy component with a surface treating agent containing a phosphate, (B) treating the component with a pre-treating agent used before a corrosion inhibition treatment, (C) treating the component, as required, with a cleaning agent containing surfactant and at least one compound selected from among aromatic carboxylic acids and salts thereof, and thereafter (D) treating the component further as required, with a corrosion inhibitor for magnesium.Type: GrantFiled: February 6, 2003Date of Patent: September 7, 2004Assignee: Otsuka Kagaku Kabushiki KaishaInventors: Kazunori Fukumura, Koji Sakane
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Patent number: 6777031Abstract: Addition-crosslinking silicone rubber mixtures and a process for coating substrate surfaces and shaped composites with this mixture are disclosed. The addition-crosslinking silicone rubber mixture comprises at least the following constituents: (a) a cyclic, linear or branched organopolysiloxane which contains on average at least two alkenyl groups per molecule and has a viscosity of from 0.01 to 30,000 Pas; (b) a cyclic, linear or branched organohydrogenpolysiloxane which may contain dimethylsilyloxy groups and preferably has on average at least two SiH groups per molecule; and (c) a catalytically effective amount of the compound cis-dichlorobis(styrene) platinum(II), which may have been dissolved in a suitable organic solvent, where the molar ratio of the SiH groups present in the mixture to the Si-bonded alkenyl groups present in the mixture is at least 1.5, preferably from about 1.5 to 4.5 and more preferably from about 1.8 to about 2.5.Type: GrantFiled: May 29, 2002Date of Patent: August 17, 2004Assignee: ABB Research LTDInventor: Jens Rocks
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Patent number: 6776918Abstract: The invention provides a titanium composite material comprising a bonded laminate having a layer of macromolecular material bonded to the modified surface of a titanium sheet or a titanium alloy sheet, and a process for preparing a titanium composite material, the process comprising the step of bonding a macromolecular material to a titanium sheet or a titanium alloy sheet having a modified surface to be bonded.Type: GrantFiled: December 8, 2000Date of Patent: August 17, 2004Assignees: Showa Co., Ltd., Japan as represented by Secretary of Agency of Industrial Science and TechnologyInventors: Susumu Yoshikawa, Yuko Tanaka, Teruki Takayasu, Hiromasa Ogawa, Kinji Onoda, Masatada Makino, Takashi Nishiyama
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Patent number: 6777034Abstract: The present invention provides a weldable, coated metal substrate having a pretreatment coating including a reaction product of at least one epoxy-functional material and at least one phosphorus-containing material or amine-containing material and a weldable coating having an electroconductive pigment and a binder deposited thereon.Type: GrantFiled: June 13, 2002Date of Patent: August 17, 2004Assignee: PPG Industries Ohio, Inc.Inventors: Valentin Berger, Ralph C. Gray, Richard M. Nugent, Jr., Michael J. Pawlik
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Patent number: 6761934Abstract: The disclosure relates to a process for forming a deposit on the surface of a metallic or conductive surface. The process employs an electroless process to deposit a silicate containing coating or film upon a metallic or conductive surface.Type: GrantFiled: August 2, 2002Date of Patent: July 13, 2004Assignee: Elisha Holding LLCInventors: Robert L. Heimann, Brank Popov, Bruce Flint, Dragan Slavkov, Craig Bishop
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Patent number: 6759087Abstract: An aqueous inorganic solution for sealing the porosity of metal components made of sintered compacted powered metal and castings formed from liquid metal, and a process for applying the solution onto the components. The solution consists primarily of a blend of inorganic metallic salt silicates with the metal ions being taken from Group 1A elements.Type: GrantFiled: April 10, 2002Date of Patent: July 6, 2004Assignee: Conspectus, Inc.Inventor: Craig J. Reuscher
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Patent number: 6749889Abstract: In a mounting structure including a first electrode and a second electrode electrically connected to each other via a conductive adhesive, the periphery of an adhesion portion between at least one of the electrodes and the conductive adhesive is covered with an electrical insulating layer, whereby the adhesion portion is reinforced from the periphery. The electrical insulating layer may be formed by dissolving a binder resin component of the conductive adhesive in a solvent. This increases the concentration of a conductive filler in the conductive adhesive, so that the conductivity of the adhesion portion is also enhanced.Type: GrantFiled: April 7, 2003Date of Patent: June 15, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroaki Takezawa, Tsutomu Mitani, Minehiro Itagaki, Yoshihiro Bessho, Kazuo Eda
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Patent number: 6748643Abstract: To provide a method of manufacturing a friction member with high painting performance in which undesirable matters, which stick to the friction member before painting, are removed, and degreasing and recovery of damaged portions are carried out. In the method of manufacturing a friction member in which a friction material is attached to a metal back plate and they are painted, after the friction material is attached to the back plate, the back plate is treated before painting. The treating prior to painting process may be shot-blasting or coating with phosphate. With this treatment before painting, parting compounds that are adhered when the friction material is attached to the back plate is to be removed; dirty things and attached matters are removed; and flaws due to blasting are recovered, resulting in improved painting performance in adhesiveness.Type: GrantFiled: November 23, 2002Date of Patent: June 15, 2004Assignee: Nisshinbo Industries, IncInventors: Takeshi Yamane, Yoshihito Aoyama
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Patent number: 6743531Abstract: The object of the present invention is to provide an oxide superconducting conductor having superior strength and superconductor characteristics, and its production method.Type: GrantFiled: June 19, 2002Date of Patent: June 1, 2004Assignees: Fujikura Ltd., Chubu Electric Power Company IncorporatedInventors: Kazunori Onabe, Takashi Saito, Naoji Kashima, Shigeo Nagaya
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Patent number: 6737116Abstract: A method for fabricating a plated product including a basecoat layer, a metal plating layer, and a topcoat layer that are formed on a surface of a base is provided. The method includes the step of forming the basecoat layer and the metal plating layer successively on the surface of the base. The step is followed by removing impurities from the surface of the metal plating layer. The topcoat layer is then formed on the surface of the metal plating layer.Type: GrantFiled: March 6, 2002Date of Patent: May 18, 2004Assignee: Toyoda Gosei Co., Ltd.Inventors: Yukitaka Hasegawa, Yousuke Maruoka, Yasuhiko Ogisu
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Patent number: 6733896Abstract: The present invention comprises a method for treating one or more multi-metal articles. The method comprises exposing the one or more articles to a first treatment composition capable of providing a conversion coating on steel- and zinc-based metal, and exposing the one or more articles to a second treatment coating composition suitable for providing a conversion coating on aluminum-based metal articles. Preferably, the first treatment composition comprises a zinc-phosphate conversion coating comprising, zinc ion, phosphate ion, manganese ion, and fluoride ion. Preferably, the second treatment composition comprises a ceramic composite treatment composition.Type: GrantFiled: February 15, 2002Date of Patent: May 11, 2004Assignee: Henkel CorporationInventors: Shawn E. Dolan, Michael J. Kay, Lawrence R. Carlson
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Patent number: 6733834Abstract: A process for the manufacture of a coating or doctoring blade comprising a band of steel or other form-stable material and a wear-resistant polymer coating applied on said band along a longitudinal edge section thereof subjected to wear, said process comprising the following steps: (a) providing continuous relative movement between said band and an application and treatment station; (b) continuously applying at said station a fast-curing polymer composition along said edge section; (c) allowing the applied composition to spread out so as to reach the very extreme of said edge section and then to cure to form an elastic and tacky-free coating; and, optionally (d) post-curing the coating at an increased temperature; as an alternative to such process there can be used a blade of double width compared to said first band and continuously supplying a fast-curing composition along a longitudinal central section of double width compared to said edge section and longitudinally cutting said second band along the middleType: GrantFiled: August 30, 2001Date of Patent: May 11, 2004Assignee: ETG Eclepens S.A.Inventors: Günter Bellmann, Silvano Freti, André Gerber
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Patent number: 6733837Abstract: A method including forming a first layer comprising a chemical conversion coating on a metal surface; and forming a second layer on the first layer through a sol gel process. An apparatus including a metal component having at least one surface; a first layer comprising a chemical conversion coating on the at least one surface; and a second layer derived from a sol gel composition on the first layer.Type: GrantFiled: April 11, 2003Date of Patent: May 11, 2004Assignee: Allfast Fastening Systems, Inc.Inventor: Robert J. Dees
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Publication number: 20040079647Abstract: An improved process for applying a coating to an untreated ferrous metal substrate is disclosed. The substrate does not need to be phosphated or subjected to any other conversion coating prior to treatment. The process includes contacting the substrate surface first with a solution comprising a Group IIIB and/or IVB metal-containing compound and a nitrate, and then with a second solution comprising a reaction product of an epoxy and an amine, phosphorus or sulfur-containing compound. A film-forming resin is then deposited on the substrate and cured. Substrates treated by the process of the present invention demonstrate excellent corrosion resistance and are also disclosed herein.Type: ApplicationFiled: October 24, 2002Publication date: April 29, 2004Inventors: Yi J. Warburton, Michel Sudour, Andreas Tolz
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Patent number: 6727005Abstract: Manufacturing low density components of high surface strength having a polymer or metal matrix substrate and ceramics and/or metal-ceramics coating, wherein the low density substrate to be coated is subjected to: optionally, machining the surface in order to generate residual compressive stress in the outer layers; optionally, thermal stabilizing at a temperature lower than 350° C.; depositing onto the outer surface, with hot spraying techniques at a temperature ranging from 70 to 350° C., of a coating layer in ceramics and/or metal-ceramics material of a surface strength higher than that of the component to be coated, the surface of the coating layer being optionally subjected to a finishing treatment. The disclosure also relates to the product thus obtained.Type: GrantFiled: October 22, 2002Date of Patent: April 27, 2004Assignee: Centro Sviluppo Materiali S.p.A.Inventors: Pietro Gimondo, Carlo Costa
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Patent number: 6726957Abstract: A multifunctional thermochemically cured coating which provides noise reduction and weight reduction in combination with thermal insulating and corrosion resistant properties. The composition comprises an epoxy resin with a weight per epoxide of 175 to 950, a mixed methyl-phenyl hydroxyl functional silicone polymer, a catalyst, a silane, an anti-corrosive pigment, an inert film reinforcing pigment, calcium silicate fibers, a mixture of ground synthetic silicone rubber, silica, and fillers, and an organic solvent.Type: GrantFiled: August 13, 2002Date of Patent: April 27, 2004Assignee: Van Etten Holdings, Inc.Inventor: Matthew Niemiec
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Patent number: 6723178Abstract: A metal surface on which a phosphate conversion coating is to be formed and which has been surface conditioned by contact with a liquid surface conditioner composition that contains dispersed fine particles of solid phosphate of at least one divalent or trivalent cations type and an adhesion promoting agent. After such conditioning, a very high quality conversion coating can be formed on the surface by contact with a nickel-free liquid phosphating composition that contains at least acid, zinc cations, and phosphate anions and optionally and preferably also contains other materials.Type: GrantFiled: January 19, 2002Date of Patent: April 20, 2004Assignee: Henkel CorporationInventors: Hirokatsu Bannai, Yasuhiko Nagashima, Takaomi Nakayama
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Patent number: 6723385Abstract: A process to pretreat copper surfaces for tight bonding to organic substrates as those found in multilayer printed circuit boards includes first treating the copper with a solution containing hydrogen peroxide, and at least one acid, and at least one nitrogen-containing five-member heterocyclic compound which does not contain sulfur, selenium or tellurium atoms in the heterocycle. Thereafter the copper surfaces are brought into contact with a second solution containing at least one adhesion-promoting compound from the group consisting of sufinic acid, selinic acid, telluric acid, and heterocyclic compounds that contain at least one sulfur, and/or selenium and/or tellurium atom in the heterocycie and also sulfonium, selenonium and telluronium salts.Type: GrantFiled: September 5, 2000Date of Patent: April 20, 2004Assignee: Atotech Deutschland GmbHInventors: Udo Grieser, Heinrich Meyer, Uwe Hauf
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Patent number: 6720032Abstract: In a process for the chemical pretreatment before painting of composite metal structures that contain aluminum or aluminum alloy portions together with steel, galvanized steel and/or alloy-galvanized steel portions, in a first step the metal structure is treated with a zinc phosphating solution that forms a surface-covering crystalline zinc phosphate layer on steel and on galvanized or alloy-galvanized steel, but without forming a zinc phosphate layer on the aluminum portions, and then in a second step the metal structure is brought into contact with a treatment solution that does not excessively dissolve the crystalline zinc phosphate layer on steel, galvanized and/or alloy-galvanized steel, but forms a conversion layer on the aluminum portions.Type: GrantFiled: March 10, 2000Date of Patent: April 13, 2004Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Peter Kuhm, Michael L. Sienkowski, Gerald J. Cormier, Matthias Hamacher, Jurgen Geke, Volkhard Enke, Jan-Willem Brouwer, Hubert Venschott
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Patent number: 6720034Abstract: A heat-rejection coating is applied to a metallic component of a gas turbine engine, preferably made of a nickel-base superalloy. A component surface is preferably pre-treated, as by polishing the component surface, thereafter pre-oxidizing the component surface, and thereafter applying a ceramic barrier coating onto the component surface. A reflective-coating mixture is air sprayed onto the pre-treated component surface. The reflective-coating mixture includes a metallic pigment, such as platinum, gold, palladium, and alloys thereof, and a reflective-coating-mixture carrier. The component with the reflective-coating mixture sprayed thereon is fired.Type: GrantFiled: April 23, 2002Date of Patent: April 13, 2004Assignee: General Electric CompanyInventors: Andrew Jay Skoog, Jane Ann Murphy, John Frederick Ackerman, Paul Vincent Arszman, Bryan Thomas Bojanowski, Timothy Ray Lattire
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Patent number: 6713187Abstract: The present invention provides a grain-oriented silicon steel sheet excellent in adhesiveness to tension-creating insulating coating films formed on the grain-oriented silicon steel sheet produced by removing inorganic mineral films composed of forsterite and so on with pickling or the like or by deliberately preventing the formation thereof, characterized by: having, at the interface between each of the tension-creating insulating coating films and the steel sheet, an external oxidation type membranous oxide film of 2 to 500 nm in average thickness mainly composed of amorphous silica and/or a mixed oxide film consisting of an external oxidation type membranous oxide film of 2 to 500 nm in average thickness mainly composed of amorphous silica and particulate oxides mainly composed of amorphous silica: and satisfying any one or more of the specified requirements.Type: GrantFiled: December 23, 2002Date of Patent: March 30, 2004Assignee: Nippon Steel CorporationInventors: Genichi Shigesato, Hiroyasu Fujii, Kenichi Murakami, Yoshiyuki Ushigami, Shuichi Nakamura, Masaaki Sugiyama
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Patent number: 6706329Abstract: A method for locally nickel-plating an aluminum alloy fin structure including placing the aluminum alloy fin structure on a sponge that is located at the bottom of a “zinc” tank containing a volume of zinc chemical solution for zinc plating; and thereafter rotating the aluminum alloy fin structure and immersing the rotated aluminum alloy fin structure in a volume of nickel chemical solution of a “nickel” tank to plate nickel onto the aluminum alloy fin structure.Type: GrantFiled: November 21, 2002Date of Patent: March 16, 2004Inventor: Ming-Ho Chien
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Patent number: 6695931Abstract: This invention is a method for forming a chemical conversion coating on ferrous metal substrates, the chemical solutions used in the coating and the articles coated thereby. By modifying and combining the features of two existing, but heretofore unrelated, coating technologies, a hybrid conversion coating is formed. Specifically, a molecular iron/oxygen-enriched intermediate coating, such as a dicarboxylate or phosphate, is applied to a ferrous substrate by a first oxidation. The intermediate coating pre-conditions the substrate to form a surface rich in molecular iron and oxygen in a form easily accessible for further reaction. This oxidation procedure is followed by a coloring procedure using a heated (about 120-220° F.) oxidizing solution containing alkali metal hydroxide, alkali metal nitrate, alkali metal nitrite or mixtures thereof, which reacts with the iron and oxygen enriched intermediate coating to form magnetite (Fe3O4).Type: GrantFiled: January 2, 2003Date of Patent: February 24, 2004Assignee: Birchwood Laboratories, Inc.Inventors: Keith N. Ravenscroft, William V. Block
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Publication number: 20040033313Abstract: A multifunctional thermochemically cured coating which provides noise reduction and weight reduction in combination with thermal insulating and corrosion resistant properties. The composition comprises an epoxy resin with a weight per epoxide of 175 to 950, a mixed methylphenyl hydroxyl functional silicone polymer, a catalyst, a silane, an anti-corrosive pigment, an inert film reinforcing pigment, calcium silicate fibers, a mixture of ground synthetic silicone rubber, silica, and fillers, and an organic solvent.Type: ApplicationFiled: August 13, 2002Publication date: February 19, 2004Applicant: Van Etten Holdings, Inc.Inventor: Matthew Niemiec
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Publication number: 20040016363Abstract: A corrosion-inhibiting coating, process, and system that provides a tight, adherent zinc- or zinc-alloy coating that is directly deposited onto steel or cast iron surfaces for enhanced corrosion protection. A process for applying the coating is also provided. The process includes the application of two sequential aqueous baths. The first bath contains a precursor zinc compound while the second bath contains a reducing agent to deposit the zinc directly upon the steel or cast iron.Type: ApplicationFiled: July 24, 2002Publication date: January 29, 2004Inventors: Andrew W. Phelps, Jeffrey A. Sturgill
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Patent number: 6682828Abstract: The coating plant includes a device for running a sheet to be coated along a traveling path past a window for the evaporation or sublimation of elements A an B, sources for the evaporation or sublimation of elements A and element B placed successively in a direction parallel to the traveling path so as to emit elements A and B through the window and a screen for reducing the angle of emission from the source of element B below the limit represented by an exit edge of the window, the screen being mounted so as to move translationally perpendicular to the traveling path and to move along the traveling path between the source of element A and the source of element B so as to obtain either a —A—AB—A— or a —B—AB—B—coating.Type: GrantFiled: July 22, 2002Date of Patent: January 27, 2004Assignee: UsinorInventors: Daniel Chaleix, Patrick Choquet, Alain Lamande, Colin Scott, Christophe Olier
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Publication number: 20040011252Abstract: Corrosion-inhibiting pigments based on manganese are described that contain a trivalent or tetravalent manganese/valence stabilizer complex. An inorganic or organic material is used to stabilize the trivalent or tetravalent manganese ion to form a compound that is sparingly soluble, exhibits low solubility, or is insoluble in water, depending upon the intended usage. Specific stabilizers are chosen to control the release rate of trivalent or tetravalent manganese during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Manganese/valence stabilizer combinations are chosen based on the well-founded principles of manganese coordination chemistry. Many manganese-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium or tetravalent lead systems.Type: ApplicationFiled: January 13, 2003Publication date: January 22, 2004Inventors: Jeffrey A. Sturgill, Andrew Wells Phelps
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Patent number: 6673465Abstract: The invention is a paper/plastic laminate suitable for use in office, midrange and high-speed traditional laser and digital copiers and digital printers, and other like equipment using heat set fuser toner adhesion as the method for fusing/bonding an ink to a paper. The paper/plastic laminate comprises a paper web laminated to a plastic film using 100% solids adhesives. Employing 100% solids adhesive technology in the laminating process yields a more dimensionally stable paper/plastic laminate when the laminate is re-exposed to heat and the ability to make lighter paper/plastic laminates than otherwise possible using solvated or waterborne adhesives.Type: GrantFiled: May 29, 2001Date of Patent: January 6, 2004Inventor: James Lordi
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Publication number: 20030221590Abstract: Corrosion-inhibiting pigments based on manganese are described that contain a heptavalent (permanganate), hexavalent (manganate), or pentavalent (manganate) compound. An inorganic or organic material is used with the heptavalent, hexavalent, or pentavalent manganese ion to form a compound that is sparingly soluble in water. Specific solubility control cations are chosen to control the release rate of heptavalent, hexavalent, or pentavalent manganese during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Solubility control agents may also modify the processing and handling characteristics of the formed powders. Many permanganate or manganate compounds are presented that can equal the performance of conventional hexavalent chromium systems. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.Type: ApplicationFiled: January 13, 2003Publication date: December 4, 2003Inventors: Jeffrey A. Sturgill, Andrew Wells Phelps
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Patent number: 6656520Abstract: A non-carbon, metal-based, high temperature resistant, electrically conductive and electrochemically active anode of a cell for the production of aluminum has a metal-based substrate to which an adherent coating is applied prior to its immersion into the electrolyte and start up of the electrolysis by connection to the positive current supply. The coating is obtainable from one or more layers applied from: a liquid solution, a dispersion in a liquid or a paste, a suspension in a liquid or a paste, and a pasty or non-pasty slurry, and combinations thereof with or without one or more further applied layers, with or without heat treatment between two consecutively applied layers when at least two layers are applied.Type: GrantFiled: March 14, 2002Date of Patent: December 2, 2003Assignee: Moltech Invent-SAInventor: Vittorio de Nora
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Patent number: 6649561Abstract: A titania-coated honeycomb catalyst matrix is provided for the ultraviolet-photocatalytic oxidation of organic pollutants in a flowing fluid. A honeycomb-shaped skeletal structure (12) has a thin, lightweight substrate (18) of metal or ceramic, typically an aluminum alloy, and a surface coating (20) of photocatalyst, such as titania. The photocatalyst (20) is bonded to the substrate (18) via a thin oxide layer (18′) on the substrate. The oxide layer (18′) may be grown on the substrate. The photocatalyst coating (20) is made by mixing (30) titania powder in a TiO2 sol-gel to form a titania slurry. The substrate with oxide layer is coated (30) with the titania slurry and then heat treated (31). The photocatalyst coating (20) is typically applied to substrate sheets (40, 60, 62) preformed for assembly into a honeycomb-shaped skeletal structure (12) having an array of parallel cells (46, 46′).Type: GrantFiled: February 26, 2001Date of Patent: November 18, 2003Assignee: United Technologies CorporationInventors: Joseph J. Sangiovanni, Zissis A. Dardas, Mariana A. Ioneva, Lin Li
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Patent number: 6645564Abstract: A method for fabricating a plated product with a basecoat layer, a metal plating layer, and a topcoat layer that are formed on a surface of a base is provided. The method includes the step of forming the basecoat layer and the metal plating layer on the surface of the base. The step is followed by subjecting the metal plating layer to a cold heat treatment or an ultrasonic wave treatment, thus forming a microcrack in the metal plating layer. Afterwards, the topcoat layer is formed on the surface of the metal plating layer.Type: GrantFiled: March 6, 2002Date of Patent: November 11, 2003Assignee: Toyoda Gosei Co., Ltd.Inventors: Yukitaka Hasegawa, Yousuke Maruoka, Yasuhiko Ogisu
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Patent number: 6627254Abstract: A method of manufacturing a magnetic recording medium, comprises steps of providing a non-magnetic substrate for a magnetic medium, the substrate including at least one major surface having a contact start/stop (CSS) or landing zone and a data zone; and forming a pattern of recesses in the substrate surface in said CSS or landing zone by embossing utilizing a stamper having a surface including a negative image pattern of said pattern of recesses. Embodiments of the invention include magnetic media comprising a non-magnetic substrate including at least one major surface having a contact start/stop (CSS) or landing zone and a data zone, said substrate surface in said CSS or landing zone comprising an embossed pattern of recesses. In addition, the data zone of the substrate surface may include an embossed servo pattern formed simultaneously with the embossed pattern of recesses formed in the landing zone.Type: GrantFiled: September 17, 2001Date of Patent: September 30, 2003Assignee: Seagate Technology LLCInventors: James Edward Angelo, Mukund Channagiri Rao, Alexei Hiram Sacks, Timothy Francis Ellis, David Kuo, Serge Jacques Fayeulle
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Patent number: 6627117Abstract: A coating system for ferrous and nonferrous metal substrates that provides cathodic protection from corrosion by coating with inherently conductive polymers and sacrificial anodic metal particles. The coating system is formed by a process that includes premixing of the inherently conductive polymer with the anodic metal particles to form a inherently conductive polymer/metal particle complex.Type: GrantFiled: July 24, 2002Date of Patent: September 30, 2003Assignee: GeoTech Chemical Company, LLCInventors: Steven K. Geer, Todd R. Hawkins
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Patent number: 6616976Abstract: A method for treating a micro-roughened metal surface to improve bonding between the metal surface and a polymer material. The method involves post-treating the micro-roughened conversion coated metal surface with an epoxy resin composition after having formed the micro-roughened conversion coated metal surface with an adhesion promotion composition. The method can be employed in the circuit board industry to improve bonding between innerlayers in a multiplayer circuit board.Type: GrantFiled: November 28, 2001Date of Patent: September 9, 2003Assignee: Shipley Company, L.L.C.Inventors: Joseph R. Montano, James G. Shelnut
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Patent number: 6610357Abstract: A method for fabricating an electrode for lithium secondary battery characterized by applying a tension to a metallic foil so as to pull an area of the metallic foil on which a thin film composed of active material is deposited, from the both sides in the direction of longitude, when depositing the thin film on the metallic foil serving as a current collector.Type: GrantFiled: November 29, 2001Date of Patent: August 26, 2003Assignee: Sanyo Electric Co., Ltd.Inventors: Koji Endo, Katsunobu Sayama, Hisaki Tarui