Metal Or Metallic Compound Containing Coating Patents (Class 427/380)
  • Patent number: 6447924
    Abstract: A gamma titanium aluminide turbine blade (10) has a titanium oxide layer (20) on its outer surface. A protective coating (22) is applied to the aerofoil (12) and the platform (14) of the turbine blade (10) onto the titanium oxide layer (20). The protective coating (22) comprises a silicate glass having a chromium oxide filler. The protective coating (22) preferably comprise a boron titanate silicate glass having a chromium oxide filler. The oxide layer (20) adheres the protective coating (22) to the titanium aluminide turbine blade (10). The protective coating (22) provides oxidation and sulphidation resistance.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: September 10, 2002
    Assignee: Rolls-Royce plc
    Inventor: David F Bettridge
  • Patent number: 6440499
    Abstract: A method for producing a corrosion-resistant and an oxidation-resistant coating on a component in which a slurry is formed by mixing a binder solution with (1) a base powder selected from the group consisting of (a) MCrAlY wherein M is Ni or Co or both, (b) NiCrAl and (c) mixtures of (a) and (b) with (2) an added powder of Al, Pt, Pd, Si or mixtures thereof, each of the said powders having a grain size between 5 and 120 &mgr;m. The slurry is applied onto a component made of a superalloy based on nickel or cobalt. The slurry is hardened on the component to form a hardened slurry coating by heating the slurry to a temperature between room temperature and 450° C., and the hardened slurry coating is heated, to produce diffusion thereof into the component, at a temperature between 750° C. and 1250° C.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: August 27, 2002
    Assignee: MTU Aero Engines GmbH
    Inventors: Gerhard Wydra, Thomas Cosack, Wolfgang Hinreiner
  • Patent number: 6432472
    Abstract: The invention relates to a nanostructured BaTiO3 film, plate or array that has from 1,000 to 10,000 times the storage capacity of conventional capacitors. The barium titanates are of the formula BaaTibOc wherein a and b are independently between 0.75 and 1.25 and c is 2.5 to about 5.0. The barium titanates may further be doped with a material, “M”, selected from Au, is Au, Cu, Ni3Al, Ru or InSn. The resulting titanate may be represented by the formula MdBaaTibOc wherein d is about 0.01 to 0.25, a is about 0.75 to about 1.25, b is about 0.75 to about 1.25 and c is about 2.5 to about 5.0. X-ray diffraction results illustrate that the crystal structure of the thin films changed from predominantly cubic to tetragonal phase and crystallite size increased with increasing concentration of “M”.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: August 13, 2002
    Assignee: Energenius, Inc.
    Inventors: Mark Farrell, Harry Eugen Ruda, Yuichi Masaki
  • Patent number: 6432238
    Abstract: Disclosed is a method for fabricating a piezoelectric/electrostrictive thick film, using a seeding layer. On a substrate is formed the seeding layer which is prepared from a ceramic sol solution or a ceramic paste, both identical or similar in composition to the piezoelectric/electrostrictive film. The ceramic paste is prepared from a mixture of a ceramic oxide powder, which has a particle size of 5 &mgr;m or less and is prepared from Pb and Ti-based piezoelectric/electrostrictive elements by a non-explosive oxidation-reduction combustion reaction at 100-500° C., and a ceramic sol solution in water or an organic solvent, identical or similar in composition to the ceramic oxide powder. Then, the seeding layer is subjected to an after-treatment. A piezoelectric/electrostrictive film is directly formed on the seeding layer. Alternatively, a piezoelectric/electrostrictive film, separately formed and sintered, is attached on the seeding layer.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: August 13, 2002
    Assignee: Samsung Electro-Mechanicals Co., Ltd.
    Inventors: Sang Kyeong Yun, Dong-Hoon Kim
  • Publication number: 20020094445
    Abstract: A method for forming a metal-containing layer on a substrate is disclosed. A slurry of the metal is first deposited on the substrate; followed by heating to remove volatile material from the slurry, and to form a layer of the metal. In another embodiment, a slurry of aluminum is deposited over the slurry of the metal, before or after the metal has been heat-treated to some degree. A diffusion heat treatment results in a coating which includes the noble-metal aluminide compound. Related articles are also disclosed.
    Type: Application
    Filed: January 16, 2002
    Publication date: July 18, 2002
    Inventors: D. Sangeeta, Howard John Farr
  • Publication number: 20020041928
    Abstract: The method is disclosed for coating or impregnating a substrate with a metal oxide. The method includes the steps of applying a liquid metal carboxylate composition, or a solution thereof, to a substrate material, and exposing the substrate material to an environment that will cause vaporization or dissipation of any excess carboxylic acids in the liquid metal carboxylate composition and conversion of the metal carboxylates to metal oxides.
    Type: Application
    Filed: March 26, 1997
    Publication date: April 11, 2002
    Inventor: LEONID V. BUDARAGIN
  • Patent number: 6368668
    Abstract: Disclosed is a method and an apparatus are provided which can efficiently produce a functional material having a satisfactory level of photocatalytic activity. A photocatalyst coating composition comprising a photocatalytic metal oxide and/or a precursor of the photocatalytic metal oxide is coated on the surface of a substrate. The surface of the coated substrate is rapidly heated to fix the photocatalytic metal oxide onto the surface of the substrate. This rapid heating can realize the production of a functional material having a satisfactory level of photocatalytic activity in an efficient manner. The apparatus, which can continuously carry out the rapid heating immediately after the production of the substrate, can produce the functional material having photocatalytic activity in an efficient manner.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: April 9, 2002
    Assignee: Toto Ltd.
    Inventors: Hideki Kobayashi, Yoshimitsu Saeki, Shinji Tanaka, Yasushi Nakashima, Yoshitaka Mayumi
  • Patent number: 6365227
    Abstract: A corrosion resistant gas cylinder and gas delivery system includes an electroless nickel-phosphorous layer overlying the inner surface of a steel alloy cylinder. The nickel-phosphorous layer has a thickness of at least about 20 micrometers and a porosity of no greater than about 0.1%. The electroless nickel-phosphorous layer has a phosphorous content of at least about 10% by weight and a surface roughness of no greater than about 5 micrometers. Prior to introducing liquefied gas into the gas cylinder, a cleaning process is carried out using a two-step baking process to clean the surface of the nickel-phosphorus layer. The nickel-phosphorous layer substantially reduces the contamination of liquefied corrosive gasses stored in the gas cylinder by metal from the steel wall surface underlying the nickel-phosphorous layer.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: April 2, 2002
    Assignees: L'Air Liquide, Societe Anonyme pour l'Etude et, l 'Exploitation des Procedes Claude of France, American Air Liquide Inc.
    Inventors: Alan D. Zdunek, Eugene A. Kernerman, William Korzeniowski
  • Patent number: 6361829
    Abstract: A method of making a fuser member having a support comprising the steps of: a) providing a support; b) coating from an organic solvent onto said support a coating composition comprising a fluorocarbon thermoplastic random copolymer, a curing agent having a bisphenol residue, a particulate filler containing zinc oxide, and an aminosiloxane, the fluorocarbon thermoplastic random copolymer having subunits of: —(CH2CF2)x—, —(CF2CF(CF3)y—, and —(CF2CF2)z—, wherein  x is from 1 to 50 or 60 to 80 mole percent,  y is from 10 to 90 mole percent,  z is from 10 to 90 mole percent,  x+y+z equals 100 mole percent; and (c) curing the coating composition for 3 to 10 hours at a temperature in the range of 220° C. to 280° C. and for an additional 2 to 10 hours at a temperature in the range of 250° C. to 270° C.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: March 26, 2002
    Inventors: Jiann H. Chen, Joseph A. Pavlisko, Charles C. Anderson, Robert A. Lancaster, Tonya D. Binga
  • Patent number: 6342276
    Abstract: A very fine pixel pattern can be formed by first screen printing a conductive paste and electron-emitting carbon paste material in sequence before removing a predetermined portion of the screen-printed layers simultaneously such that remaining portions become a fine pixel pattern. This method not only enables fine pixel pattern formation but also provides an electrode/emitter structure that increases electron emission. Furthermore all these improvements can be made with less manufacturing time and cost.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: January 29, 2002
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Jong-Hun You
  • Patent number: 6335057
    Abstract: There is disclosed a process to form metallic multilayer coating films characterized by coating on the uncured coating surface of a paint formed on a substrate with a composition (B), which contains non-leafing aluminum flake and organic solvent and then by coating, optionally after coating with a topcoat paint (C), with a clear paint (D). According to said process metallic multilayer coating films, which is white, excellent in metallic luster impression and having a high flip-flop effect, can be formed by using non-leafing aluminum flake pigment.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: January 1, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Kohsuke Noura, Hideo Sugai, Yasumasa Okumura
  • Patent number: 6335056
    Abstract: A transparent conductive composition, a transparent conductive layer formed of the composition and a manufacturing method thereof are provided The composition contains a transparent conductive particle, metal alkoxide [M1(OR)4]; metal (M2) particles or salt thereof (M2X) and a catalyst. Here, the metal alkoxide [M1(OR)4] is one selected from the group consisting of Si(OR)4, Ti(OR)4, Sn(OR)4 and Zr(OR)4, where R is C1-C4 alkyl, and the metal (M2) is at least one selected from the group consisting of silver (Ag), gold (Au), platinum (Pt), copper (Cu), nickel (Ni), lead (Pb), cobalt (Co), rhodium (Rh), ruthenium (Ru) and tin (Sn), and X is one selected from the group consisting of chloride, nitrate and sulfonate. Therefore, a transparent conductive layer having improved conductivity, transmittance and hardness can be obtained through a low-temperature sintering process.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: January 1, 2002
    Assignee: Samsung Display Devices Co., Ltd.
    Inventors: Jong-hyuk Lee, Yoon-ho Jun, Yoon-hyung Cho, Jong-hwan Park, Dong-sik Zang
  • Patent number: 6322849
    Abstract: An integrated circuit is formed containing a metal-oxide ferroelectric thin film. An inert-gas recovery anneal is conducted to reverse the degradation of ferroelectric properties caused by hydrogen. The inert-gas recovery anneal is conducted in an unreactive gas atmosphere at a temperature range from 300° to 1000° C. for a time period from one minute to two hours. Preferably, the metal-oxide thin film comprises layered superlattice material. Preferably, the layered superlattice material comprises strontium bismuth tantalate or strontium bismuth tantalum niobate. If the integrated circuit manufacture includes a forming-gas anneal, then the inert-gas recovery anneal is performed after the forming-gas anneal, preferably at or near the same temperature and for the same time duration as the forming-gas anneal.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: November 27, 2001
    Assignees: Symetrix Corporation, Spemens AG
    Inventors: Vikram Joshi, Narayan Solayappan, Walter Hartner, Günther Schindler
  • Patent number: 6277440
    Abstract: This invention is a fiber-reinforced ceramic matrix composite and a method for their fabrication. The precursors of the ceramic matrix phase are impregnated into the fibrous preform or-applied to the surface of the fiber as fluids. The preform or fibers are then thermally processed to convert the precursor compounds to the desired refractory materials, e.g., carbides, borides, or nitrides. The density and other properties of the composites may be enhanced further by using a hybrid process that combines fluid infiltration and thermal treatment with chemical vapor infiltration.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: August 21, 2001
    Assignee: MSNW, Inc.
    Inventor: George H. Reynolds
  • Patent number: 6251471
    Abstract: A method for producing an electrical feedthru wherein a thin liquid conductive film is deposited into a shallow trough of an insulating machinable substrate. The conductive film and substrate are fired and then the resulting bound composite is ground flush with the adjacent surface of the insulating machinable substrate. The surface cohesion of the fired composite, and the resulting high quality surface finish of the grinding operation, combined with an elastomeric seal, create low leakage barriers capable of supporting a pressure differential while allowing isolated electrical conduction across a pressure or vacuum envelope. The method produces a space saving feedthru which allows a high signal line density in a limited space, is relatively simple to assemble, allows for disassembly rework, can be ‘designed into’ unique geometries of varied applications, and which has a single O-ring sealing across all traces.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: June 26, 2001
    Assignee: University of New Hampshire
    Inventors: Mark S. Granoff, Phillip D. Demaine, David Broderick, Stephen Ingemi
  • Patent number: 6238748
    Abstract: The present invention provides a process of a forming multilayer coating film characterized by that in a process of forming a multilayer coating film by successively coating with an undercoat paint (A), an intermediate paint (B) and a topcoat paint (C) on a substrate, (1) to use a liquid thermocurable paint containing 0.1-30 parts by weight of aluminium powder and 1-200 parts by weight of titanium oxide pigment per 100 parts by weight of a thermosetting resin composition and the hiding film thickness of its coating film being less than 25 &mgr;m as said intermediate paint (B), (2) to use a solid color paint, a metallic paint or an interference pattern paint as said topcoat paint (C), and (3) to coat said topcoat paint (C) after curing by heating of the coating film of said intermediate paint (B). By this process it is possible to make an intermediate coating film thinner and to form a multilayer coating film with excellent smoothness.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: May 29, 2001
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Shigeru Nakamura, Naruhito Ueno
  • Patent number: 6210807
    Abstract: The tribological behavior of titanium or titanium alloy article is improved by gaseous oxidation of the article at a temperature in the range of 500 to 725° C. for 0.5 to 100 hours, the temperature and time being selected such as to produce an adherent surface compound layer containing at least 50% by weight of oxides of titanium having a rutile structure and a thickness of 0.2 to 2 &mgr;m on a solid solution-strengthened diffusion zone wherein the diffusing element is oxygen and the diffusion zone has a depth of 5 to 50 &mgr;m.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: April 3, 2001
    Assignee: The University of Birmingham
    Inventors: Hanshan Dong, Andrew Bloyce, Peter Harlow Morton, Thomas Bell
  • Patent number: 6194069
    Abstract: A process for the production of insulator-coated black particles, which comprises the steps of (1-a) dispersing particles of silica or a metal oxide in an alcohol-based solvent consisting mainly of an intermediate alcohol to obtain a dispersion of the above particles, (1-c) forming a titanium oxide coating of TiO2 on the surface of each of the particles whose surfaces have been activated in the above step, to obtain titanium oxide-coated particles, (1-d) calcining the titanium oxide-coated particles obtained in the above step in a reducing and/or nitriding atmosphere and thereby blackening the above titanium oxide coatings to obtain black particles, and (1-e) forming an electrical insulator coating on a surface of each of the black particles obtained in the above step, to obtain insulator-coated black particles; characerized in that the process includes a step of (1-b) adding an alkaline aqueous solution to the dispersion obtained instep (1-a) to activate a surface of each of the particles of a metal oxi
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: February 27, 2001
    Assignee: Ube Nitto Kasei Co., Ltd.
    Inventors: Tatsuhiko Adachi, Kazuhiko Sakai, Norihiro Nakayama, Kenichi Fujino, Hidekazu Takagi
  • Patent number: 6180164
    Abstract: A method for forming a ruthenium-based thick-film resistor having copper terminations, in which the thick-film resistor is fired in a non-oxidizing atmosphere so as not to oxidize the copper terminations yet without reducing the thick-film resistor to metallic ruthenium. A ruthenium-based thick-film resistor ink having a matrix material and an organic vehicle is deposited on a copper layer that will form the terminations for the thick-film resistor formed by firing the ink. The organic vehicle of the ink is then burned out at a temperature of less than 350° C. in an oxidizing atmosphere, such as air. Thereafter, the ink is fired in a non-oxidizing atmosphere (e.g., nitrogen) at a temperature sufficient to sinter the matrix material and yield a ruthenium-based thick-film resistor with copper terminations formed by the copper layer.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: January 30, 2001
    Assignee: Delco Electronics Corporation
    Inventors: Marion Edmond Ellis, Philip Harbaugh Bowles, Washington Morris Mobley
  • Patent number: 6171645
    Abstract: This invention has enabled a new, simple nanoporous dielectric fabrication method. In general, this invention uses a polyol, such as glycerol, as a solvent. This new method allows both bulk and thin film aerogels to be made without supercritical drying, freeze drying, or a surface modification step before drying. Prior art aerogels have required at least one of these steps to prevent substantial pore collapse during drying. Thus, this invention allows production of nanoporous dielectrics at room temperature and atmospheric pressure, without a separate surface modification step. Although not required to prevent substantial densification, this new method does not exclude the use of supercritical drying or surface modification steps prior to drying. In general, this new method is compatible with most prior art aerogel techniques. Although this new method allows fabrication of aerogels without substantial pore collapse during drying, there may be some permanent shrinkage during aging and/or drying.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: January 9, 2001
    Assignee: Texas Instruments Incorporated
    Inventors: Douglas M. Smith, William C. Ackerman, Richard A. Stoltz
  • Patent number: 6165621
    Abstract: A method for forming a multi-layer metallic coating film, the method being a 3-coat system comprising the steps of applying the following coating compositions (A), (B) and (C) in this order to a metal substrate coated with a cationically electrodepositable coating composition; (A) an organic solvent-based thermosetting metallic first base coating composition which comprises a neutralized carboxyl-containing resin having an acid value of 5 to 100 mg KOH/g, an amino resin and a metallic pigment, the composition having a substrate-hiding power corresponding to up to 3% transmittance of light at a wavelength of 400 to 700 nm in a 15 .mu.m-thick cured coating film, (B) an aqueous thermosetting second base coating composition which has a transparency corresponding to 10 to 95% transmittance of light at a wavelength of 400 to 700 nm in a 15-.mu.m thick cured coating film, and (C) an organic solvent-based thermosetting clear coating composition.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: December 26, 2000
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Akira Kasari, Hiroaki Oda, Mitsugu Endo, Mikio Shimakawa, Tetsuya Yokoyama
  • Patent number: 6165553
    Abstract: A method of fabricating a dense membrane by providing a colloidal suspension of a ceramic powder, and providing a polymeric precursor. The precursor is mixed together with the colloidal suspension, and the mixture is applied to a membrane support to form a composite structure. The composite structure is heated to form a dense membrane on the support.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: December 26, 2000
    Assignee: Praxair Technology, Inc.
    Inventors: Chieh-Cheng Chen, Ravi Prasad
  • Patent number: 6165556
    Abstract: There is provided a (Ba, Sr) TiO.sub.3 film of higher dielectric constant and less leakage current for serving as a dielectric thin film of a capacitor in a semiconductor memory. DPM (dipivaloylmethanato) compounds of Ba, Sr and Ti are dissolved in THF (tetrahydrofuran) to obtain Ba(DPM).sub.2 /THF, Sr(DPM).sub.2 /THF and TiO(DPM).sub.2 /THF solutions which are used as source material solutions. A (Ba, Sr) TiO.sub.3 film is formed by a CVD method while increasing a relative percentage of a Ti source material flow rate to a sum of Ba source material flow rate and Sr source material flow rate. The film formation is carried out in multiple steps, and annealing is applied in each step after deposition of the film.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: December 26, 2000
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takaaki Kawahara, Mikio Yamamuka, Tetsuro Makita, Tsuyoshi Horikawa, Akimasa Yuuki, Teruo Shibano
  • Patent number: 6159547
    Abstract: A method for coating turbomachinery having a metal surface to prevent fouling, the steps of the method being applying to the surface a first slurry containing an acidic aqueous medium containing galvanically active material and phosphate ions, thereby forming a galvanically sacrificial first layer, curing the first layer, applying to the cured first layer an aqueous non-conductive second slurry containing inorganic phosphate or silicate ions, thereby forming a non-conductive second layer, curing the second layer, applying to the cured second layer a liquid sealer composition containing a thermally stable organic polymer and fluorocarbon, thereby forming a top layer, and curing the top layer.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: December 12, 2000
    Assignee: Sermatech International, Inc.
    Inventors: Bruce G. McMordie, Mark F. Mosser
  • Patent number: 6153270
    Abstract: A process of applying an inorganic coating to an electrically conducting body, in particular a metallic workpiece, is characterized with respect to a precisely controllable temperature variation with short temperature changes in an economical and energy-saving operation in that the body first undergoes a preparation. Thereafter, if need be, the body is degreased and/or chemically pretreated and/or blasted. Subsequently, a coating medium is applied to at least the surface region of the body being coated. Then, at least the surface region of the body being coated is heated by induction to a reaction temperature before and/or while and/or after applying the coating medium. Finally, the coating medium is fully reacted to a coating, whereupon the body undergoes a cooling.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: November 28, 2000
    Assignee: Ewald Dorken AG
    Inventors: Horst Russmann, Thomas Kruse, Hans-Detlef Hinz
  • Patent number: 6149968
    Abstract: The thin film piezoelectric device which has excellent properties is disclosed. A thin film piezoelectric device according to the present invention comprises a piezoelectric film which is polycrystalline, and two electrodes by which the piezoelectric film is sandwiched, wherein the size of crystal grains of the piezoelectric film substance is 0.4 .mu.m or more and equal to or less than the thickness of the piezoelectric film. A process for producing the thin film piezoelectric device are also disclosed. The process comprising the steps of: forming the precursor film of a piezoelectric film on an electrode, first heating the electrode at a temperature of 500 to 700.degree. C. to crystallize the precursor film, thereby obtaining a piezoelectric film which is polycrystalline, and secondly heating the electrode at a temperature of 750 to 1200.degree. C.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: November 21, 2000
    Assignee: Seiko Epson Corporation
    Inventor: Masato Shimada
  • Patent number: 6149967
    Abstract: A method for forming a protective layer for a dielectric material in an alternating current type plasma display is provided. In this connection, a coating sol solution is provided which can form a protective layer on a large area substrate without the need to introduce any expensive equipment, the protective layer thus formed being excellent in properties such as strength, adhesion, transparency, and protective properties and capable of being formed by a sol-gel process without use of the conventional vacuum process. The sol solution comprises a dispersion of a precursor to magnesium oxide in a specific form. A method for film formation, using this solution is also provided.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: November 21, 2000
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Satoshi Mitamura, Toshio Yoshihara, Nobuko Takahashi
  • Patent number: 6143141
    Abstract: Superalloy substrates bearing a rhenium diffusion barrier, and a method of forming a rhenium diffusion barrier between a superalloy substrate and an overlay coating comprising aluminum. The method involves depositing a rhenium film onto the surface of a superalloy substrate and subjecting the rhenium film to first conditions effective to cause a minor portion of rhenium atoms to penetrate the surface of the superalloy substrate and second conditions effective to cause a minority of the rhenium atoms to diffuse into the substrate, forming a diffusion barrier comprising an interfacial zone comprising a mixture of rhenium atoms and atoms of the superalloy substrate covered by a rhenium film. The diffusion barrier is effective to suppress diffusion of aluminum from the overlay coating under static oxidation testing conditions.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: November 7, 2000
    Assignee: Southwest Research Institute
    Inventors: Gerald R. Leverant, James Arps, John Campbell, Richard Page
  • Patent number: 6113838
    Abstract: A thermoplastic and thermoformable pigment-containing metallic automotive paint is solvent cast and dried to form a finished metallic automotive paint coat for a decorative film used in a thermoforming process to form an exterior paint layer on a molded plastic automotive body panel. The paint coat contains a pigment uniformly dispersed in a polymeric binder material preferably comprising an alloy of a polyvinylidene fluoride (PVDF) copolymer and an acrylic resin in which the PVDF copolymer is provided as a dispersion in the acrylic resin. Preferably, the dispersed form of the PVDF copolymer has a particle size of about eleven microns or less, and more preferably a mean particle size range of about 3 to about 4.5 microns. The dispersion ratio is preferably from 80% to 20% PVDF copolymer and from 20% to 80% acrylic resin, respectively, by a weight. A low molecular weight form of the PVDF copolymer is preferred and characterized by a melt viscosity of 17,000 to 20,000 poise at 230.degree. C.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: September 5, 2000
    Assignee: Avery Dennison Corporation
    Inventors: Michael D. Flynn, Keith L. Truog
  • Patent number: 6103319
    Abstract: A battery electrode substrate which is constituted of a porous metallic body structure having communicating pores at a porosity of at least 90% and an Fe/Ni multilayer structure wherein the skeletal portion of the porous metallic body is composed mainly of Fe and has an Ni covering layer on the surface thereof while pores communicating with the inside and outside of Fe skeletal portion exist in the Fe skeletal portion and the inside of the pores is covered with Ni. The electrode substrate is produced by applying an iron oxide powder of at most 20 .mu.m in an average particle size on a porous resin core body; heat treating the core to remove an organic resin component while simultaneously sintering Fe to obtain a porous Fe body; and then covering the Fe skeletal portion with Ni by electroplating. In this process, the iron oxide can be used in combination with carbon powder. Further, a nickel porous sintered body can also be produced using nickel oxide in place of iron oxide.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: August 15, 2000
    Assignees: Sumitomo Electric Industries, Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Keizo Harada, Kenichi Watanabe, Shosaku Yamanaka, Kiyoshi Hayashi, Nobuyasu Morishita, Hiroki Takeshima, Hideo Kaiya, Munehisa Ikoma
  • Patent number: 6086957
    Abstract: A method of preparing metal oxide thin films by a solution method. A .beta.-metal .beta.-diketonate or carboxylate compound, where the metal is selected from groups 8, 9, 10, 11, and 12 of the Periodic Table, is solubilized in a strong Lewis base to form a homogeneous solution. This precursor solution forms within minutes and can be deposited on a substrate in a single layer or a multiple layers to form a metal oxide thin film. The substrate with the deposited thin film is heated to change the film from an amorphous phase to a ceramic metal oxide and cooled.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: July 11, 2000
    Assignee: Sandia Corporation
    Inventors: Timothy J. Boyle, David Ingersoll
  • Patent number: 6074699
    Abstract: An article has at its surface a nonmetallic ceramic form of a cation reactive with phosphate ion to form a ceramic phosphate, such as an oxide of a cation selected from the group consisting of beryllium, aluminum, iron, magnesium, calcium, thorium, barium, zirconium, zinc, silicon, and mixtures thereof. A source of reactive phosphate ions, such as concentrated phosphoric acid or monoaluminum phosphate, is applied to the surface of the article. The surface of the article is thereafter heated to cause the nonmetallic ceramic form of the cation and the source of the reactive phosphate ions to react together, producing a phosphate-bonded hard layer at the surface of the article.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: June 13, 2000
    Assignee: McDonnell Douglas Corporation
    Inventors: Robert A. Dichiara, Jr., Robert W Kreutzer
  • Patent number: 6074707
    Abstract: The present invention provides a method of producing a magnetoresistive element in which a laminate including a free ferromagnetic layer in which at least magnetization is freely rotated according to an external magnetic field, a non-magnetic layer, and a pinned ferromagnetic layer in which reversal of magnetization is pinned is formed, and is heat-treated for setting different directions of the easy axis of magnetization of the free ferromagnetic layer and the pinned ferromagnetic layer under different conditions. In the heat treatment, first annealing is performed at the predetermined temperature in a magnetic field applied in a first direction, and second annealing is performed in a magnetic field applied in a second direction substantially perpendicular to the first direction so that the easy axis of magnetization of the free ferromagnetic layer is substantially perpendicular to that of the pinned ferromagnetic layer.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: June 13, 2000
    Assignee: Alps Electric Co., Ltd.
    Inventors: Yukie Nakazawa, Masamichi Saito, Naoya Hasegawa, Akihiro Makino
  • Patent number: 6056815
    Abstract: Disclosed herein is a method of producing pearlescent pigments comprised of a platelet substrate and a TiO.sub.2 coating, which has a rutile structure and which does not contain foreign metal species. The method entails the deposition of Ti(III), followed by the deposition of a Ti(IV), onto the platelet substrate.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: May 2, 2000
    Assignee: EM Industries, Inc.
    Inventor: Guoyi Fu
  • Patent number: 6033735
    Abstract: There is disclosed a method of coating cemented carbide inserts at least partly with a layer of at least one iron group metal. When inserts coated with such a layer are brazed to a tool holder, a joint with improved strength is obtained. According to the present method, one or more metal salts of at least one iron group metal containing organic groups are dissolved and complex bound in at least one polar solvent with at least one complex former comprising functional groups in the form of OH or NR.sub.3 (R.dbd.H or alkyl). A soluble carbon source is added to the solution which is subsequently at least partly applied to the cemented carbide inserts by dipping, spraying or painting. The inserts are dried and heat treated in an inert and/or reducing atmosphere. As a result, cemented carbide inserts are obtained at least partly coated with a layer of an iron group metal.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: March 7, 2000
    Assignee: Sandvik AB
    Inventors: Stefan Ederyd, Enrico Galli, Mats Nygren, Gunnar Westin, Asa Ekstrand
  • Patent number: 6017645
    Abstract: Composite material for magnetooptic recording, comprising a thin layer deposited on a non-magnetic solid substrate. The said thin layer is a polycrystalline layer consisting of microcrystals having a structure of a vacant-site spinel ferrite, based on iron, cobalt and transition metals. By virtue of a particular process for producing the thin layers, enabling especially the size of the crystallites to be increased, it is possible to optimize the magnetic and magnetooptic properties and to obtain thin layers having, for example, a remanent Faraday rotation and a coercive field which are greater, respectively, than 1 degree per micron for the Faraday rotation and 1000 Oe for the coercive field.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: January 25, 2000
    Assignee: ATG-Cygnet
    Inventors: Philippe Tailhades, Jean-Pierre Bonino, Isabelle Pasquet, Lionel Presmanes, Laurence Bouet, Abel Rousset, Patrick Langlade
  • Patent number: 6007873
    Abstract: A high emissivity coating composition for coating the interior of a furnace to direct thermal energy toward a load in the furnace wherein the furnace operates above 1100.degree. C. thereby increasing the thermal efficiency of the furnace. The high emissivity coating composition includes a high emissivity agent and a binder agent. The preferred high emissivity agent is cerium oxide which defines a high emissivity factor from approximately 1000.degree. C. to above 2000.degree. C. The binder suspension agent is formulated to define the consistency and drying characteristics of paint such that the coating can be applied in a manner similar to the manner in which paint is applied. Moreover, the binder/suspension agent withstands the final use temperature.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: December 28, 1999
    Assignee: Equity Enterprises
    Inventors: Cressie E. Holcombe, Jr., Lloyd R. Chapman
  • Patent number: 6004686
    Abstract: The present invention provides an electroluminescent material that includes phosphor particles with an overlaying coating of a conductive inorganic oxide.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: December 21, 1999
    Assignee: Micron Technology, Inc.
    Inventors: Robert T. Rasmussen, David A. Cathey
  • Patent number: 6001416
    Abstract: An oxide thin film comprising an oxide represented by ABO.sub.3, wherein A comprises at least one element selected from the group consisting of the groups IA, IIA, IIIA, IVB and VB of the periodic table, and B comprises at least one element selected from the group consisting of the groups IVA and VA of the periodic table, wherein said oxide thin film has a mixed structure in which crystal grains are dispersed in an amorphous phase or an ultrafine grain phase. The oxide thin film is prepared by preparing an organic solvent solution (1) of a metal alkoxide compound of A and a metal alkoxide compound of B; adding water, or water and a catalyst to the organic solvent solution (1) to prepare a solution (2); mixing the organic solvent solution (1) and the solution (2) to prepare a mixed solution; coating the mixed solution on a substrate to form a thin film; and subjecting the thin film to heat treatment.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: December 14, 1999
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hiroaki Moriyama, Keiichi Nashimoto
  • Patent number: 5985369
    Abstract: A method is described for the coating of substrates by the application of a liquid coating compound and subsequent curing, which is characterised in that there are added to the coating compound one or more polybutenes (C4-polyolefins) with a molecular weight of 200 to below 500, in a quantitative proportion of 0.5 to 10 wt. %, referred to the solids content of the coating compound, in order to improve the flow properties. The liquid coating compounds are also described.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: November 16, 1999
    Assignee: Herberts Gesellschaft Mit Beschrankter Haftung
    Inventors: Christiane Kerkmann, Hans-Jurgen Schlinsog, Hans-Martin Schonrock
  • Patent number: 5976628
    Abstract: A conductor paste comprising a high-polymer composite obtained by dispersing super-fine-granulated copper oxide in a polymer without being aggregated, mixed copper powders mainly composed of a base copper powder having a mean particle size of 1 to 10 .mu.m added with at least one kind of an auxiliary copper powder having a mean particle size smaller than that of the base copper powder, and an organic solvent, wherein the weight ratio of the mixed copper powders to copper oxide in the high-polymer composite is 5 to 50 to 1 of copper oxide and the total amount of copper oxide and the mixed copper powders is 50 to 90% by weight of the conductor paste, and a production method a conductor film by coating the conductor paste on the surface of a substrate and after pre-burning the conductor paste under temperature raising, burning the conductor paste to form the conductor film on the substrate.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: November 2, 1999
    Assignees: Mitsuboshi Belting Ltd., Okuno Chemical Industries Co., Ltd.
    Inventors: Masahito Kawahara, Toru Noguchi, Yoshio Yamaguchi, Yoshifumi Yamashita, Yoshito Nokami
  • Patent number: 5962152
    Abstract: A ceramic heat insulating layer formed on an iron-based base material with or without a bonding layer interposed therebetween, comprising: aggregate particles of a nepheline mineral; and a binder composed of silica particles and of a metalloxane polymer, the binder filling spaces between the aggregate particles and chemically bonding the aggregate particles to each other and to the base material or to the bonding layer. Alternatively, the binder leaves voids between the aggregate particles, and a sealing layer seals the voids in a surface region of the ceramic heat insulating layer.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: October 5, 1999
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masateru Nakamura, Sumio Kamiya
  • Patent number: 5945167
    Abstract: A grain growth accelerator in a form dispersed in an aqueous solution or an organic solvent is introduced into a preliminarily fired body, and thereafter the preliminarily fired body is fired in a main firing process. In the main firing process, a volumetric diffusion of metal and grain growth of ceramic particles are caused as the firing temperature increases. Therefore, it is possible to manufacture a composite material which has such a gradient function that it is ceramic-rich on its surface and metal-rich in its inside, a high degree of surface hardness and toughness, and an interface-free structure.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: August 31, 1999
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Mitsuo Kuwabara, Mitsuhiro Funaki, Kazuhito Hiraga, Tetsuya Ohishi
  • Patent number: 5945166
    Abstract: A near-net, complex shaped ceramic fiber reinforced silicon carbide based composite bodies with graded compositions and stress zones is disclosed. To provide the composite a fiber preform is first fabricated and an interphase is applied by chemical vapor infiltration, sol-gel or polymer processes. This first body is further infiltrated with a polymer mixture containing carbon, and/or silicon carbide, and additional oxide, carbide, or nitride phases forming a second body. One side of the second body is spray coated or infiltrated with slurries containing high thermal expansion and oxidation resistant, crack sealant phases and the other side of this second body is coated with low expansion phase materials to form a third body. This third body consisting of porous carbonaceous matrix surrounding the previously applied interphase materials, is then infiltrated with molten silicon or molten silicon-refractory metal alloys to form a fourth body.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: August 31, 1999
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Mrityunjay Singh, Stanley R. Levine, James A. Smialek
  • Patent number: 5935655
    Abstract: A combination of (A) a nitrogen containing water soluble polymer, (B) a water insoluble film forming polymer, and (C) gas filled, polymer walled microballoons provides a superior thermally releasable coating that (i) can be conveniently and reliably coated from a water based solution and dispersion onto surfaces to be protected against painting, (ii) is reliably stable at ambient temperatures, (iii) even after being coated with many times its own thickness of accumulated paint particles, rapidly disintegrates, along with the accumulated paint coating formed on it, upon contact with hot water, into particles of a size that readily escapes from standard paint booth grate structures, (iv) detackifies any paint particles that escape during distintegration of the combined thermally releasable coating and paint residues accumulated thereon, and (v) disintegrates into particles that float on water, so that they can be readily removed from the grates by immersing the latter in hot water, allowing a few minutes for th
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: August 10, 1999
    Assignee: Henkel Corporation
    Inventor: Scott J. Beleck
  • Patent number: 5925208
    Abstract: Polymeric sheets or rolls suitable for printing and forming at high rates of production of blown or injection in-mold labeled plastic containers are based on a polymeric transparent, translucent or contact clear substrate having a thickness in the range of 0.002 to 0.008 inches which is reverse printed and overcoated on the container-facing side with a heat activatable adhesive and coated or extruded on the opposite side with an antistatic and/or slip coating. Optionally, such sheet or roll can be printed and then cut into individual labels for affixing to the container as part of a in-molding process. Recyclable containers are provided at high speed without missing labels or doubled labels due to feeding problems. The labels are firmly adherent, and squeeze-release resistant and the indicia, because they are viewable through the labels themselves, are protected against spillage and abrasion.
    Type: Grant
    Filed: November 28, 1997
    Date of Patent: July 20, 1999
    Assignee: NorthStar Print Group
    Inventor: Peter J. Dronzek, Jr.
  • Patent number: 5910336
    Abstract: An improved process for producing a light-absorbing chalcopyrite film is disclosed, which comprises the steps of: applying at least one solution containing at least either of (a) an organic compound of a metal in Group 1B of the periodic table and (b) an organic compound of a metal in Group 3B of the periodic table on a substrate at least once to thereby form a thin film containing the organic compound (a) and the organic compound (b); heating the thin film in a reducing or inert gas atmosphere to convert the thin film into a thin metal film comprising the Group 1B metal and the Group 3B metal; and heating the thin metal film in an atmosphere containing either an element in Group 6B of the periodic table or a compound thereof to thereby convert the thin metal film into a thin chalcopyrite film.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: June 8, 1999
    Assignee: Yazaki Corporation
    Inventors: Hiroki Ishihara, Shinichi Nakagawa, Norio Mochizuki, Masaharu Ishida
  • Patent number: 5906892
    Abstract: Stable electron acceptor compositions are composed of a plurality of pillared metal complexes disposed on a supporting substrate. At least one Group VIII metal at zero valence is entrapped within this matrix. The complexes comprise from one to about 100 units of the formula:--(Y.sup.1 O.sub.3 --Z--Y.sup.2 O.sub.3)Me.sup.Y --Y.sup.1 and Y.sup.2 being phosphorus or arsenic; Z being a divalent group which reversibly forms a stable reduced form and contains two conjugated cationic centers having a negative E.sup..smallcircle..sub.red value; and Me.sup.Y being a divalent, trivalent, or tetravalent metal of Group IIIA, IIIB, IVA, or IVB having an atomic number of at least 21 or a lanthanide with bonded anions. The units are bound to the substrate through an organic polymer having side chains derivatized with phosphonate or arsonate groups. Counter anions balance the charge of Z. The compositions can be used in the decomposition of water to yield hydrogen gas, the sensing of oxygen, and as catalysts.
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: May 25, 1999
    Assignee: The Trustees of Princeton University
    Inventors: Mark E. Thompson, Xiaozhang Tang
  • Patent number: 5891523
    Abstract: The invention provides a method for the metallizing of precision machine parts coupled with heat-treatment and machining to insure the minimal handling the remachining generally required due to dimensional distortion resulting from the standard heat-treatment used in hardening the metallized coating.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: April 6, 1999
    Assignee: Surface Technology, Inc.
    Inventor: Nathan Feldstein
  • Patent number: RE36573
    Abstract: A method for producing thick ceramic films of greater than 10 .mu.m on selected substrates is described. Conventional sol gel solutions are loaded with up to about 90% by weight of finely divided ceramic particles and mixed. The resulting slurry or paint can be either spun or dip coated or sprayed or painted onto a planar or other substrate, fired to remove the organic materials and to develop a microcrystalline structure. The fired film may then be heated. Composite films are also contemplated.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: February 15, 2000
    Assignee: Queen's University at Kingston
    Inventors: David A. Barrow, T. Edward Petroff, Michael Sayer