Uniting Particles To Form Continuous Coating With Nondiscernible Particles Patents (Class 427/189)
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Publication number: 20110014446Abstract: A method and an apparatus for efficiently mass-producing a single-wall carbon nanotube (SWCNT) film are disclosed. The SWCNT film is useful as an industrial material, at low temperature and low cost. The method and apparatus are characterized in that carbon nano-tubes (CNTs) are synthesized from a raw material source through a gas-phase chemical vapor deposition (CVD) process, and the synthesized CNTs are directly deposited on a substrate in a chamber connected with a reaction tube, thereby forming a CNT film on the substrate.Type: ApplicationFiled: July 1, 2008Publication date: January 20, 2011Inventor: Takeshi Saito
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Publication number: 20110014466Abstract: Exemplary embodiments provide materials and methods for composite materials that can include core-shell nano-fibril fillers dispersed in a plastic matrix, the core-shell nano-fibril filler including a carbon nanotube surrounded by a soft shell that includes one or more elastomers.Type: ApplicationFiled: July 17, 2009Publication date: January 20, 2011Applicant: XEROX CORPORATIONInventors: Nan-Xing HU, Yu Qi
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Patent number: 7871551Abstract: Systems, apparatus, and methods feed and distribute a powder over a working area used for producing three-dimensional objects. A powder storage unit contains a supply of powder, and a distribution member is arranged to be moveable across the working area to distribute a portion of powder onto the working area. In an embodiment, the distribution member is, in a first step, moveable a predetermined distance into a supply of powder placed in the powder storage unit, said distance being sufficiently long to bring about a transfer of a portion of powder from the powder supply at one side of the distribution member to another side of the distribution member facing the working area, and the distribution member is, in a second step, moveable towards and across the working area to distribute the portion of powder onto the working area. Other embodiments are disclosed.Type: GrantFiled: May 11, 2005Date of Patent: January 18, 2011Assignee: Arcam ABInventors: Göran Wallgren, Ulf Ackelid, Mattias Svensson
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Patent number: 7833609Abstract: The present invention is intended to provide a sliding member which exhibits an excellent anti-seizure property even under starved lubricant conditions. In the present invention, there is provided a sliding member with a structure, in which a coating layer having a sliding surface is adhered to the surface of the base material, wherein the coating layer does not contain a resin binder but has solid lubricant plate crystal particles laminated therein, wherein these solid lubricant plate crystal particles have a lamellar crystal structure in which (001) planes are stacked in parallel, and at least in the sliding surface, the orientation index of the (001) plane of the solid lubricant plate crystal particles is 90% or more.Type: GrantFiled: November 22, 2006Date of Patent: November 16, 2010Assignee: Daido Metal Co., Ltd.Inventors: Masahito Fujita, Hideo Tsuji, Shinji Ochi, Manabu Izumida
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Patent number: 7829151Abstract: The invention relates to a method for modifying piece surfaces consisting in bringing pieces into contact with at least one type of a modifying agent in such a way that the modification of the surface is carried out.Type: GrantFiled: March 17, 2004Date of Patent: November 9, 2010Assignee: BEHR GmbH & Co. KGInventors: Snjezana Boger, Peter Englert, Mathias Pfitzer, Ingo Trautwein, Sabine Sedlmeir
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Patent number: 7810356Abstract: The present invention provides a process for producing a porous quartz glass base, which comprises hydrolyzing a silicon compound in an oxyhydrogen flame in a reaction furnace to generate and deposit fine silica particles on a starting member, thereby forming a porous quartz glass base, wherein a gas discharge pipe for discharging an unnecessary gas from the reaction furnace is heated. According to the present invention, fine silica particles can be prevented from adhering to a gas discharge pipe for discharging the unnecessary hydrogen chloride gas generated in producing a porous quartz glass base.Type: GrantFiled: August 8, 2007Date of Patent: October 12, 2010Assignee: Asahi Glass Company, LimitedInventors: Kei Iwata, Takao Uto, Takuya Sakuma
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Patent number: 7795797Abstract: A phosphor made of phosphor particles coated with inorganic substance lamination, wherein an outermost layer is a transparent layer made of one or more of SiO2, Al2O3 and SiON, having a thickness of about 10 nm to about 500 nm, and formed by fluidized bed CVD, and a transparent inner coating layer is formed inside the outermost layer by a method different from the fluidized bed CVD. The inner coating may be formed by nonaqueous method not using a water content, for example sintering super-fine particles distributed on phosphor particles.Type: GrantFiled: March 22, 2006Date of Patent: September 14, 2010Assignee: Stanley Electric Co., Ltd.Inventors: Kenichi Kondo, Shuichi Taya
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Publication number: 20100223870Abstract: Provided is a system including a structural member for separating two environments that have different temperatures and a method of manufacturing the structural member. The system includes a barrier constructed with a plurality of the structural members. The structural member includes a core and a thermal barrier layer on at least a portion thereof. The thermal barrier layer is positionable between the two environments such that the structural member impedes the flow of heat and/or the flow of sound through the structural member and may improve a building's energy efficiency, occupancy comfort, and commercial viability.Type: ApplicationFiled: March 4, 2010Publication date: September 9, 2010Applicant: CINCINNATI THERMAL SPRAY INC.Inventor: Robert Keith Betts
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Publication number: 20100221567Abstract: A direct metal laser sintered material including a substrate formed from a laser sintering process, the substrate having at least one surface, and a cladding material brazed onto at least a portion of the surface.Type: ApplicationFiled: May 7, 2010Publication date: September 2, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: David Edwin Budinger, Ronald Lance Galley, Ashwin Sreekant Raghavan, David Allen Kastrup
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Publication number: 20100215870Abstract: This disclosure relates to systems and associated methods for applying a surface treatment to a part and curing the surface treatment without reorienting the part in the process. The systems include a first conveyor, a second conveyor, a system for applying a surface treatment, such as a powder coating application system, and a system for curing the surface treatment.Type: ApplicationFiled: January 12, 2010Publication date: August 26, 2010Inventor: Marlon E. Holmquist
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Publication number: 20100212971Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table that is substantially free of defects formed due to abnormal grain growth of tungsten carbide grains, and methods of fabricating such PDCs. In an embodiment, a PDC comprises a cemented tungsten carbide substrate including an interfacial surface that is substantially free of tungsten carbide grains exhibiting abnormal grain growth, and a PCD table bonded to the interfacial surface of the cemented tungsten carbide substrate. The PCD table includes a plurality of bonded diamond grains defining a plurality of interstitial regions. At least a portion of the interstitial regions includes a metal-solvent catalyst disposed therein. The PCD table may be substantially free of chromium or the PCD table and the cemented tungsten carbide substrate may each include chromium.Type: ApplicationFiled: February 26, 2009Publication date: August 26, 2010Applicant: US SYNTHETIC CORPORATIONInventors: Debkumar Mukhopadhyay, Kenneth E. Bertagnolli, Mohammad N. Sani
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Patent number: 7780059Abstract: A method of forming a structure by a material additive process, the method comprising the steps: providing a substrate having a surface, providing an interlayer on the surface which conforms to the surface of the substrate, forming a melt pool in the interlayer, the depth of the melt pool being less than the depth of the interlayer, selectively depositing a material within the melt pool, allowing the material to solidify, and applying heat and pressure to diffusion bond the material to the substrate.Type: GrantFiled: August 10, 2007Date of Patent: August 24, 2010Assignee: Rolls-Royce plcInventor: Daniel Clark
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Publication number: 20100206527Abstract: A method for in-situ treatment of a metallic surface utilizing a nanoparticle dispersion to increase at least one of (i) the critical heat flux. (ii) the boiling heat transfer rate, or (iii) the corrosion resistance of the metallic surface when in operation without a nanofluid heat transfer liquid, comprising: (1) cleaning the metallic surface: (2) conditioning the metallic surface to enhance nanoparticle binding to the metallic surface by applying a polymeric binding agent; (3) forming at least one thin film layer of nanoparticles on the metallic surface by contacting the nanoparticle dispersion with the metallic surface at a temperature and pressure sufficient to boil the nanoparticle dispersion; and, optionally (4) curing the nanoparticle layer by heating the metallic surface to a temperature higher than the temperature sufficient to boil the nanoparticle dispersion.Type: ApplicationFiled: February 5, 2010Publication date: August 19, 2010Inventors: Lin-wen Hu, Jacopo Buongiorno, Bao H. Truong, Heather M. Feldman
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Publication number: 20100189892Abstract: Method and system for moving a frozen adhesive particle towards a target body, comprising launching means (13) which are arranged to launch the particle (2) in its frozen form towards the target body (3, 4) via a movement path (14) through a gap (15) between the launching means and the target body. The medium in the gap may have a temperature above the adhesive particle's melting temperature. The launching means may be arranged to launch the particle at a high speed. The launching means and the target body may have a geometry causing that the movement path is substantially vertical or substantially horizontal.Type: ApplicationFiled: December 4, 2006Publication date: July 29, 2010Inventors: Erik Christian Nicolaas Puik, Edwin Johannes Theodorus Smulders
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Patent number: 7763315Abstract: Disclosed are a coating material for metal wherein a thin coating film without pinholes having excellent corrosion resistance, retort resistance, impact resistance, processing resistance, abrasion resistance, adhesiveness to a metal, flavor preservability for contents etc can be formed when applying on a metal plate or a metallic container, and a metallic container on which the coating material is applied. The coating material for metal includes thermoplastic resin particles having an average primary particle size of 10 to 800 nm obtained by cooling a solution of the thermoplastic resin. A process for preparing the coating material for metal comprises steps of (a) obtaining a solution wherein a thermoplastic resin is dissolved into an organic solvent, (b) obtaining a dispersion of particles of the thermoplastic resin having an average primary particle size of 10 to 800 nm by cooling the solution, (c) separating particles from the dispersion and (d) dispersing the separated particles in a solvent.Type: GrantFiled: August 20, 2004Date of Patent: July 27, 2010Assignee: Sakuranomiya Chemical Co., LtdInventors: Masao Yamazaki, Yoshiyuki Asai, Yoichi Kitamura, Tsuyoshi Hasegawa
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Patent number: 7744952Abstract: A method for forming a coating material capable of forming a hydrophobic, microstructured surface. The method comprises treating micro or nano-particles particles with a hydrophobic agent and an additive to form larger particles with the hydrophobic agent bonded thereto. The invention also comprises the coating material thus formed.Type: GrantFiled: December 28, 2005Date of Patent: June 29, 2010Assignee: Industrial Technology Research InstituteInventors: Yuan-Chang Huang, Yuung-Ching Sheen, Yih-Her Chang, Kuo-Feng Lo
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Patent number: 7744953Abstract: A method for forming self-cleaning coating comprising hydrophobically-modified particles. Micro- or nano-particles are treated with a hydrophobic agent and an additive to form larger particles with the hydrophobic agent and the additive bonded thereto. A binder or crosslinker is attached to the larger particles by forming chemical bonds with at least one of the additive, the hydrophobic agent, and the particles, thus forming a coating material capable of forming self-cleaning coating.Type: GrantFiled: December 28, 2005Date of Patent: June 29, 2010Assignee: Industrial Technology Research InstituteInventors: Yuan-Chang Huang, Yuung-Ching Sheen, Yih-Her Chang, Kuo-Feng Lo
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Patent number: 7740905Abstract: The invention relates to a method of, and a nozzle arrangement for, spraying cold gas. The nozzle arrangement has a first nozzle and a second nozzle, which is arranged within the first nozzle. The first nozzle is fed a gas which optionally contains particles. The second nozzle is fed a particle-containing gas. The particles are applied to a surface of the substrate by means of the gases.Type: GrantFiled: December 15, 2006Date of Patent: June 22, 2010Assignee: Siemens AktiengesellschaftInventors: Rene Jabado, Jens Dahl Jensen, Ursus Krüger, Daniel Körtvelyessy, Volkmar Lüthen, Ralph Reiche, Michael Rindler, Raymond Ullrich
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Publication number: 20100143605Abstract: An apparatus and related method for forming a three-dimensional polymer based part including a die tool having a specified shape and size and exhibiting an exposed polymer adhering surface corresponding in configuration to a polymeric based part to be created. A volume holding bin supports a three-dimensional article including at least one exposed and pattern defining surface. A volume of a granulated polymer material is deposited into the bin and around the article. A sub-volume of the material adheres to and forms a hardened layer upon the exposed pattern defining surface, a corresponding part created having a specified thickness and matching configuration.Type: ApplicationFiled: February 10, 2010Publication date: June 10, 2010Inventor: Miguel A. Linares
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Patent number: 7722735Abstract: A method is described for forming a porous coating on the surface of a substrate such as an implantable prosthesis wherein a microstructure appliqué is made in the shape and depth of the area to be coated, adhesively attached to that area and subsequently bonded to the substrate through the application of an appropriate sintering treatment. Manufacture of the microstructure appliqué is accomplished through the transfer and deposition of one or more packed layers of uniformly-sized, metallic particles onto a shaped pattern followed by the addition of a binder solution for preserving the packing of particles and the integrity of the shaped piece. The method disclosed herein provides a means of making uniform and reproducible structures possessing uniform porosity and is adaptable to automation for producing larger quantities of appliqués, which may help in reducing costs associated with prosthetic implant production.Type: GrantFiled: April 6, 2007Date of Patent: May 25, 2010Assignee: C3 Materials Corp.Inventor: John B. Bulko
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Publication number: 20100124606Abstract: Disclosed herein are embodiments of a multi-layer nonwoven fiber material, and related methods of manufacturing the material. In one exemplary embodiment, the fiber material includes a first layer of directionally aligned fibers together with a second layer of randomly dispersed fibers dispersed over the first layer. Consistent with one exemplary method for manufacturing a nonwoven fiber material, the method includes dispersing a first plurality of fibers horizontally in one or more predetermined directions, as well as dispersing a second plurality of fibers horizontally in random directions. In such an embodiment, the second plurality of fibers is dispersed over the first plurality of fibers. Moreover, an exemplary embodiment of a roofing shingle employing a nonwoven fiber material as described herein is as disclosed.Type: ApplicationFiled: January 26, 2010Publication date: May 20, 2010Applicant: ELK PREMIUM BUILDING PRODUCTS, INC.Inventors: Paul G. Wilson, Darrell R. Heine, John J. Andrews, Louis T. Hahn, Matti Kiik
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Patent number: 7695769Abstract: Provided is a nanotube-polymer composite which can effectively utilize characteristics of a carbon nanotube structure. The composite includes a carbon nanotube structure and a polymer, in which: the carbon nanotube structure has a network structure constructed by mutually cross-linking functional groups bonded to multiple carbon nanotubes through chemical bonding of the functional groups together; and the polymer is filled in the network structure.Type: GrantFiled: September 8, 2004Date of Patent: April 13, 2010Assignee: Fuji Xerox Co., Ltd.Inventors: Miho Watanabe, Kentaro Kishi, Chikara Manabe, Kazunori Anazawa, Masaki Hirakata, Taishi Shigematsu, Hiroyuki Watanabe, Takashi Isozaki, Shigeki Ooma, Shinsuke Okada
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Patent number: 7695773Abstract: The present invention relates to powder compositions curable by ultraviolet irradiation or by accelerated electron beams. These powder compositions comprise at least one ethylenically unsaturated resin, and lend to the production of paint and varnish coatings exhibiting a unique combination of properties, inter alia good flow and mechanical properties and above all outstanding adhesion to metal substrates, persisting on ageing.Type: GrantFiled: September 23, 2005Date of Patent: April 13, 2010Assignee: CYTEC Surface Specialties, S.A.Inventors: Luc Moens, Nele Knoops, Daniel Maetens
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Patent number: 7666469Abstract: An coated particulate is provided with a graphite-impregnated resin coating. The oil field particulates may comprise any of gravel-pack sand, granular betonite, ground Gilsonite, calcium carbonate, glass beads, rock wool, shredded paper, metal spheres, ceramic beads, nut hulls, ground rubber, plastic beads, muscovite mica, calcined petroleum coke, and perlite. The resin may comprise as a binder one or more of a natural, synthetic, water-soluble, and organic resins. More specifically, the resins may comprise an organic film-forming resin such as an alkyd, polyurethane and epoxy. Alternatively, the resin may comprise a film-forming water-soluble polymer, such as a starch, carboxymethyl cellulose, hydroxyethyl cellulose, and xanthan gum. In a further alternative, the resin may comprise a resin-dispersed emulsion, such as a latex or acrylic.Type: GrantFiled: June 20, 2008Date of Patent: February 23, 2010Assignee: Superior Graphite Co.Inventors: Donald J. Weintritt, Peter Zaleski, Henry Francois, Frank A. Wawrzos
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Publication number: 20100040857Abstract: A method and apparatus for making a reactive polymer pre-impregnated reinforcement material, comprising applying a substantially non-volatile composition of substantially solid particles of a reactive thermoset resin to a porous substrate at ambient temperature, initially by melting a first portion of the particles of the reactive thermoset resin. The first portion of the particles of the reactive thermoset resin flows into interstices of at least one layer of the porous substrate and a remaining portion of the particles of the substantially non-volatile composition remains solid.Type: ApplicationFiled: October 24, 2009Publication date: February 18, 2010Applicant: IQ TEC SWITZERLAND GMBHInventor: Marcel Jakob Schubiger
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Patent number: 7651726Abstract: A process of obtaining silicon nitride (Si3N4) surface coatings on ceramic pieces and components by impregnation of the surfaces of the ceramic pieces with silicon powder suspensions with a particle size preferably less than 200 ?m. The thickness of the coatings depends on the impregnation time and on the properties of the slip and the ceramic piece. The subsequent nitridation of the coating by thermal treatment at temperatures between 1300° C. and 1500° C. in N2 atmospheres leads to a continuous Si3N4 coating. The chemical stability and compatibility between Si3N4 and molten silicon enables its application in silicon metallurgy, in manufacturing crucibles for silicon fusion or for housing said molten silicon, in manufacturing pipes and chutes for its transport or in manufacturing different components for its subsequent purification.Type: GrantFiled: February 18, 2004Date of Patent: January 26, 2010Assignee: Universidade de Santiago de CompostelaInventors: Alejandro Souto Serantes, Francisco Guitián Rivera, Javier Bullón Camarasa
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Patent number: 7638156Abstract: Masking apparatus and methods of masking a medical article, such as stent, for selective application of a coating composition on the article are disclosed.Type: GrantFiled: December 19, 2005Date of Patent: December 29, 2009Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Syed F. A. Hossainy, Gordon Stewart, Srinivasan Sridharan, Arkady Kokish, Klaus Kleine, Benjamyn Serna, Bjorn G. Svensson
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Patent number: 7629022Abstract: Flaky particles whose thickness is ½ or less of a long side of a flat surface thereof are continuously injected together with a compressed gas onto a layer-forming surface of a workpiece to orient the flaky particles so that its flat surface is in line with the surface of the workpiece. By coating a binder to the surface of the workpiece in advance, a bonding between the flake particle thus oriented and the workpiece may be accomplished via this binder, or by generating heat at a point of collision between the surface of the workpiece and the flaky particle and at a collision point in which the subsequent flaky particles collide with the flaky particles that have already reached the surface of the workpiece, the bonding may be accomplished by means of this heat.Type: GrantFiled: June 30, 2005Date of Patent: December 8, 2009Assignee: Fuji Manufacturing Co., Ltd.Inventors: Keiji Mase, Shozo Ishibashi
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Patent number: 7629024Abstract: The invention includes methods of forming particle-containing materials, and also includes semiconductor constructions comprising particle-containing materials. One aspect of the invention includes a method in which a first monolayer is formed across at least a portion of a semiconductor substrate, particles are adhered to the first monolayer, and a second monolayer is formed over the particles. Another aspect of the invention includes a construction containing a semiconductor substrate and a particle-impregnated conductive material over at least a portion of the semiconductor substrate. The particle-impregnated conductive material can include tungsten-containing particles within a layer which includes tantalum or tungsten.Type: GrantFiled: July 13, 2006Date of Patent: December 8, 2009Assignee: Micron Technology, Inc.Inventors: Garo J. Derderian, Gurtej S. Sandhu
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Patent number: 7592040Abstract: A process for applying a two-tone color effect coating to a substrate including applying an accent powder basecoating composition including film-forming material; reaction product as described herein; flow control agent; and first color effect additive, to a first predetermined portion of a surface of a substrate; at least partially curing the accent basecoating; applying a main liquid or powder basecoating composition having a different color effect additive to a second predetermined portion of the substrate, such that a portion of the accent basecoat is not contacted by the main basecoating composition; at least partially curing the main basecoating composition; applying a topcoating composition over the accent basecoat and main basecoat and curing the resulting composite coating, such that the first portion of the substrate has a different color effect than the second portion of the substrate to provide a two-tone color effect coated substrate.Type: GrantFiled: February 23, 2005Date of Patent: September 22, 2009Assignee: PPG Industries Ohio, Inc.Inventors: Richard S. Tansey, John C. Reising, Stacie L. Toothman
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Patent number: 7569273Abstract: A materials system and method is provided to enable the formation of articles by three-dimensional printing. The materials system includes thermoplastic particulate filler material that allows the accurate definition of articles that are strong without being brittle.Type: GrantFiled: May 19, 2004Date of Patent: August 4, 2009Assignee: Z CorporationInventors: James F. Bredt, Sarah L. Clark, Derek X. Williams, Matthew J. DiCologero
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Patent number: 7566479Abstract: Disclosed is a method for producing surface-modified materials, such as core-shell materials with the core and the shell(s) being different distinct phases, or materials with a concentration gradient of one or more dopant or substituent element(s) from the surface to the bulk. The method comprises (i) treating the bulk of material with a solution containing a first solvent and at least one flocculant comprising a soluble polymer so that the flocculant adheres to the bulk; (ii) subsequently contacting the flocculant-treated bulk of step (i) with a dispersion containing a second solvent and the particulate solid particles to deposit the particulate solid particles on the flocculant-treated bulk; and (iii) subsequently treating the resultant of step (ii) with heat. This method can in particular be applied to produce surface-modified cathode materials for Li batteries with improved performance.Type: GrantFiled: June 23, 2003Date of Patent: July 28, 2009Assignee: LG Chem, Ltd.Inventors: Jürgen Otto Besenhard, Mario Wachtler, Joong-Hee Han, Angelika Basch
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Patent number: 7560142Abstract: A fiber containing a bound active material, such as a metal oxide, under 20 microns in diameter. The inventive fiber is formed through the mixing of the fibers with a cationic or anionic polymer in one tank, the active material with a cationic or anionic polymer in a second tank, the opposite zeta potential of that used with the active material, and then mixing the active material/polymer and fiber/polymer blends together.Type: GrantFiled: September 8, 2006Date of Patent: July 14, 2009Assignee: Graver Technologies LLCInventors: Walter Bass, Angelo Pantaleo, John Schroeder, Samuel Vetrano
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Publication number: 20090110819Abstract: A method of forming a film is provided. Nanoparticles are deposited on a surface of a substrate using a liquid deposition process. The nanoparticles are linked to each other and to the surface using linker molecules. A coating having a surface energy of less than 70 dyne/cm is deposited over the film to form a coated film. The coated film has an RMS surface roughness of 25 nm to 500 nm, a film coverage of 25% to 60%, a surface energy of less than 70 dyne/cm; and a durability of 10 to 5000 microNewtons. Depending on the particular environment in which the film is to be used, a durability of 10 to 500 microNewtons may be preferred. A film thickness 3 to 100 times the RMS surface roughness of the film is preferred.Type: ApplicationFiled: May 6, 2008Publication date: April 30, 2009Applicant: Integrated Surface TechnologiesInventors: Jeffrey M. CHINN, Robert Ashurst, Adam Anderson
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Publication number: 20090098286Abstract: A metal or alloy powder is cold sprayed onto a turbine engine component to form a bond coat. The bond coat is shot peened with particles at a sufficient velocity to compact and smooth the bond coat surface. The smooth surface promotes the formation of a stable and adhered alumina TGO layer. According to another embodiment, the bond coat is instead cold sprayed with particles at a velocity that is sufficient for the particles to compact and smooth the bond coat, and that is insufficient for the particles to bond with the bond coat. For both embodiments, a heat treatment process under controlled atmosphere may be necessary to promote bonding between bond coat and substrate and as a pre-oxidation step to form the TGO layer.Type: ApplicationFiled: June 11, 2007Publication date: April 16, 2009Applicant: HONEYWELL INTERNATIONAL, INC.Inventors: Siu-Ching Lui, Chang-Jiu Li, Guan-Jun Yang
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Patent number: 7514122Abstract: Thermal spray processing and cold spray processing are utilized to manufacture porous starting materials (such as tube stock, wire and substrate sheets) from biocompatible metals, metal alloys, ceramics and polymers that may be further processed into porous medical devices, such as stents. The spray processes are also used to form porous coatings on consolidated biocompatible medical devices. The porous substrates and coatings may be used as a reservoir to hold a drug or therapeutic agent for elution in the body. The spray-formed porous substrates and coatings may be functionally graded to allow direct control of drug elution without an additional polymer topcoat. The spray processes are also used to apply the drug or agent to the porous substrate or coating when drug or agent is robust enough to withstand the temperatures and velocities of the spray process with minimal degradation.Type: GrantFiled: October 17, 2006Date of Patent: April 7, 2009Assignee: Advanced Cardiovascular Systems, Inc.Inventor: Pamela A. Kramer
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Patent number: 7507440Abstract: A method of forming a composite coating is provided including (a) applying a first powder base coating to a substrate; and (b) either (1) applying a second powder base coating comprising flake or platelet effect pigment and heating the first and second base coats to substantially level the second base coat and allow migration of the effect pigment to a surface region thereof but not sufficient to cause the second base coat to cure; and (2) applying a top coating and substantially curing the resultant composite coating; or alternatively, (3) heating the first base coat to form a generally continuous film; (4) applying the second powder base coating comprising the effect pigment and heating the second base coat to substantially level the second base coat and allow migration of the effect pigment to a surface region thereof; and (5) applying the top coating and substantially curing the resultant composite coating.Type: GrantFiled: February 23, 2005Date of Patent: March 24, 2009Assignee: PPG Industries Ohio, Inc.Inventors: John C. Reising, Richard S. Tansey, Angela K. Staufer
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Patent number: 7488512Abstract: In a solid precursor evaporation system configured for use in a thin film deposition system, such as thermal chemical vapor deposition (TCVD), a method for preparing one or more trays of solid precursor is described. The solid precursor may be formed on a coating substrate, such as a tray, using one or more of dipping techniques, spin-on techniques, and sintering techniques.Type: GrantFiled: December 9, 2004Date of Patent: February 10, 2009Assignee: Tokyo Electron LimitedInventors: Kenji Suzuki, Emmanuel P. Guidotti, Gerrit J. Leusink, Masamichi Hara, Daisuke Kuroiwa, Sandra G. Malhotra, Fenton McFeely, Robert R. Young, Jr.
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Patent number: 7485370Abstract: A fire retardant material comprising both ammonium polyphosphate particles microencapsulated within a melamine or melamine-based resin and melamine-based particles retained in a base material. The material may be applied to a textile article or incorporated into an article during formation thereof.Type: GrantFiled: January 5, 2006Date of Patent: February 3, 2009Assignee: Dartex Coatings LimitedInventors: Tilo Schwarzbach, Jo McKnight
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Publication number: 20080304975Abstract: A method of attaching particles to a substrate, comprising the steps: providing a substrate having a surface providing an interlayer on the surface which conforms to the surface of the substrate, forming a melt pool in the interlayer, depositing a material within the melt pool, allowing the material to solidify, applying a powder containing dispersed particles to the solidified material, and applying heat to attach the dispersed particles to the substrate.Type: ApplicationFiled: May 19, 2008Publication date: December 11, 2008Applicant: ROLLS-ROYCE PLCInventors: DANIEL CLARK, JEFFREY ALLEN
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Publication number: 20080299336Abstract: A method is for producing calcinated or sintered hollow bodies comprising a spherical surface, to hollow bodies produced using the method, and to the uses thereof. Calcinated or sintered hollow bodies comprising a spherically curved surface, an enlarged, freely accessible surface and/or a structured surface. An organic spherical carrier is coated with a powder which forms the shell of a hollow body, and a binding agent, both contained in suspension. A heat treatment is then carried out, leading to the expulsion of organic constituents and to the sintering process. At least one elevation is arranged on the surface of the carrier or embodied thereon, the projection past the surface corresponding at least to the thickness of the shell of the finished sintered hollow body, taking into account the degree of shrinkage of the powder material during the sintering process.Type: ApplicationFiled: August 17, 2006Publication date: December 4, 2008Inventors: Ralf Kretzschmar, Wolfgang Hungerbach, Gert Bingel
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Patent number: 7455904Abstract: This invention relates to the control of radiant thermal energy and more specifically to highly Thermal Infrared (IRT) reflective pigments for use in decorative coatings for buildings or other areas where the control of IRT energy and visual decoration are required. Control of the spread of thermal energy in domestic building through passive techniques reduces energy consumption by reducing reliance on heating in cool environments and cooling air-conditioning in warm environments. A number of paint formulations having low emissivity in the thermal infrared exist which are based on variants of conventional decorative paint fluids. There are a number of problems associated with such formulations such as susceptibility to damages and high emissivity for certain colour pigmentations. The present invention proposes a low emissivity flake (1) for use in a paint formulation which substantially overcomes the problems associated with the prior art.Type: GrantFiled: July 12, 2004Date of Patent: November 25, 2008Assignee: Qinetiq LimitedInventor: Eoin O'Keefe
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Patent number: 7442408Abstract: The present invention is drawn toward a method of forming conductive paths on a substrate using ink-jet technology. An ink-jettable suspension or solution can be formed containing a conductive particulate having certain desired conductive properties. The suspension can then be ink-jetted onto a substrate such as ceramic, epoxy glass, or other materials in a given pattern using various ink-jet printing technologies and methods. Depending on the chosen conductive particulates, suspension components, and substrate, the printed pattern of conductive particulates may then be heated to further enhance the conductive properties of the particulates through bonding and/or sintering.Type: GrantFiled: March 26, 2002Date of Patent: October 28, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventors: Thomas A. Saksa, John M. Da Cunha
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Patent number: 7437817Abstract: A process for fabricating a ceramic electroactive transducer of a predetermined shape is disclosed. The process comprises the steps of providing a suitably shaped core having an outer surface, attaching a first conductor to the outer surface of the core, coating an inner conductive electrode on the outer surface of the core such that the inner conductive electrode is in electrical communication with the first conductor, coating a ceramic layer onto the inner electrode, thereafter sintering the ceramic layer, coating an outer electrode onto the sintered ceramic layer to produce an outer electrode that is not in electrical communication with the first conductor, and then poling the sintered ceramic layer across the inner electrode and the outer electrode to produce the ceramic electrode.Type: GrantFiled: January 11, 2006Date of Patent: October 21, 2008Assignee: The Penn State Research FoundationInventors: Jindong Zhang, Robert E. Newnham
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Publication number: 20080240879Abstract: A process is presented which produces at least one block of dense material constituted by hard particles dispersed in a binder phase, it being possible for the dense material to be enriched locally with binder phase by imbibition. The process includes bringing at least one imbibition area of a surface of the block, preferably coated with a coating material, into contact with an imbibiting material which locally enriches the block with binder phase. The block in contact with the imbibiting material is then subjected to a suitable thermal cycle constituted by heating, temperature maintenance and cooling. This serves to bring some or all of the imbibiting material and the binder phase of the block into the liquid state in such a manner that the enrichment with binder phase takes place solely through the imbibition area. The block is used in connection with the building of a drill bit or tool.Type: ApplicationFiled: March 27, 2008Publication date: October 2, 2008Applicant: Varel International, Ind., L.P.Inventors: Alfazazi Dourfaye, Christophe Colin, Elodie Sorlier, Hedi Sellami
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Patent number: 7402330Abstract: The invention relates to a granular material for 3D binder printing, said granular material consisting of particles provided with an externally non-polar surface layer (2). The invention also relates to a method for producing a granular material for 3D binder printing, whereby a surface layer (2) having a non-polar outer side is applied to initial particles (1), and to a method for producing an object consisting of the inventive granular material, according to which a layer of the inventive granular material is applied to a base, and pre-determined regions (3) of said layer are moistened with a binding fluid, said binding fluid being selected from fluids in which a surface layer of the particles of the granular material is soluble. The invention further realties to objects consisting of interconnected particles of the inventive granular material. The invention enables a very precise printing process.Type: GrantFiled: June 16, 2003Date of Patent: July 22, 2008Assignee: Daimler AGInventors: Rolf Pfeifer, Jialin Shen
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Publication number: 20080171145Abstract: A two-tone painting method includes applying a powder primer to a substrate, followed by a powder basecoat applied dry-on-dry onto the powder primer. The powder basecoat is preferably applied in the same painting booth as the powder primer, i.e., without curing the powder primer. The powder basecoat includes a flake additive, such as a mica flake or a metal flake, which prevents surface irregularities from forming in the powder primer and the powder basecoat as a result of not curing the powder primer before applying the powder basecoat. The substrate is then masked, and a second basecoat is applied. The masking is then removed and a clearcoat is applied. The second basecoat and the clearcoat are then cured simultaneously in an oven.Type: ApplicationFiled: January 15, 2007Publication date: July 17, 2008Applicant: BASF CORPORATIONInventors: Cynthia A. Stants, Thomas C. Balch
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Publication number: 20080138513Abstract: A device for manufacturing a three-dimensional object by a layer-wise solidification of a building material in powder form at positions in the respective layers corresponding to the object is disclosed. The device comprises: a container (25) arranged in the device; a support device (26), which can be vertically moved in the container, wherein the upper side of the support device (26) forms a building platform (78), on which the three-dimensional object is generated layer-wise; an application device (27) for applying building material in powder form onto the building platform and a previously solidified layer, respectively; and an energy source (6) that provides a beam (9) for solidifying the building material in powder form. In a region below the container (25) in the device (1) outlets (90) are provided, wherein from each of the outlets (90) a directed flow of a fluid medium escapes in a directed manner to peripheral regions of the container (25).Type: ApplicationFiled: November 19, 2007Publication date: June 12, 2008Applicant: EOS GmbH Electro Optical SystemsInventors: Hans Perret, Thomas Halder, Jochen Philippi, Peter Keller, Gerd Cantzler, Michael Goth, Siegfried Schimitzek
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Patent number: 7326443Abstract: A method for heating and fixing an inking, particularly a toner powder on a plate-shaped support. Heat is applied and fixes the inking to a coated upper side of the support. The method of this invention can be used to fix and adhere toner inkings on thick-walled supports. In one method step of this invention, the coated upper side and/or an uncoated underside of the plate-shaped support each is subjected to infrared radiation and/or a hot air stream and/or a microwave radiation. At least a portion of the infrared radiation and/or the hot air stream and/or the microwave radiation directed onto the uncoated underside of the support passes through while another portion is absorbed, such as if the support has a high weight per unit area of the support. A ceramic or thermosetting toner forms the applied ink.Type: GrantFiled: March 21, 2002Date of Patent: February 5, 2008Assignee: Schott GlasInventors: Bernd Schultheis, Rainer Solbach, Birgit Lattermann, Hans-Jürgen Hommes, Dieter Jung
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Patent number: 7311881Abstract: A chip having a deaerating function and requiring no bonding or welding for forming a channel, and an apparatus and method for the reaction analysis are provided. The chip contains a first substrate, a second substrate having a liquid inlet and a liquid outlet, and an intermediate member having hydro-phobicity and air permeability and forming a channel between the first and second substrates. It is thereby possible to prevent mixing of air bubbles into the channel.Type: GrantFiled: September 1, 2004Date of Patent: December 25, 2007Assignee: Hitachi, Ltd.Inventors: Kei Takenaka, Toru Fujimura, Yasushi Goto