Including Structurally Defined Particulate Matter Patents (Class 428/372)
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Patent number: 8013107Abstract: The present invention provides a method of producing polyalkylene terephthalate, which comprises: introducing a prepolymer of polyalkylene terephthalate that is in a molten state comprising 70 mol % or more of ethylene terephthalate or 1,4-butylene terephthalate repeating units and having an intrinsic viscosity [?] between 0.2 and 2 dl/g through a feed opening to a polymerization reactor; discharging the introduced prepolymer from holes of a perforated plate; and polymerizing the prepolymer under reduced pressure, while allowing the prepolymer to fall along the surface of a support that is open towards the outside at a temperature between the [crystalline melting point?10° C.] of the prepolymer or higher and the [crystalline melting point+30° C.] of the prepolymer or lower under the conditions represented by a formula S1/S2>1, wherein S1 is the surface area of falling polyalkylene terephthalate, and S2 is the area where the support is in contact with polyalkylene terephthalate.Type: GrantFiled: October 7, 2004Date of Patent: September 6, 2011Assignee: Asahi Kasei Chemicals CorporationInventors: Hiroshi Yokoyama, Katsuhiro Fujimoto, Muneaki Aminaka, Junichi Sugimoto, Tsutomu Katsumata
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Patent number: 8007904Abstract: A multicomponent fiber having a metal phobic component and a metal philic component that allows for the selective distribution of metal across the surface of the fiber is disclosed. The inventive multicomponent fibers may be used in fabrics and other products manufactured therefrom for economically imparting at least one of an antistatic quality, antimicrobial and antifungal efficacy, and ultraviolet and/or electromagnetic radiation shielding.Type: GrantFiled: January 12, 2009Date of Patent: August 30, 2011Assignee: Fiber Innovation Technology, Inc.Inventor: Jeffrey S. Dugan
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Patent number: 7998576Abstract: Disclosed is a monofilament allowing contrast X-ray radiography. At least part of the monofilament is formed of a thermoplastic resin containing a radiopaque agent. The monofilament contains the radiopaque agent in the thermoplastic resin in a content of 30 to 80% by mass, and has a Young's modulus of 0.1 to 5.0 cN/dtex and a fineness of 500 to 20000 dtex.Type: GrantFiled: November 7, 2008Date of Patent: August 16, 2011Assignee: Unitika Ltd.Inventors: Seiji Abe, Kenji Chizuka, Shoji Matsumoto, Koji Kakumoto, Takenori Domon, Dai Iwasaki
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Publication number: 20110195214Abstract: A superabsorbent bi-component fiber, wherein component A is at least one thermoplastic polymer and component B is a compound selected from at least one thermoplastic base polymer and at least one superabsorbent polymer (SAP), and also a method for production thereof are described. The melting point of the thermoplastic contained in component A is at least 20° C. higher than the melting point of the thermoplastic contained in component B, the average grain size of the SAP is 0.5 to 10 ?m and the compound has an SAP-fraction of 0.5 to 40 wt %. The bi-component fiber can be used to produce superabsorbent textile fabrics which are used in particular in the field of hygiene and medicine.Type: ApplicationFiled: October 6, 2009Publication date: August 11, 2011Inventors: Kay Bernhard, Jörg Dahringer, Michael Klanert, Werner Stefani
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Publication number: 20110171468Abstract: Compositions that are intimate blends of ultrahigh molecular weight polyethylene and high-density polyethylene (HDPE), and which are melt spinnable. The compositions include certain quasi-spherical particles. Also disclosed is a method of melt spinning from such compositions and the multi-filament fibers produced thereby. The fibers of the invention are useful in a variety of applications.Type: ApplicationFiled: March 23, 2011Publication date: July 14, 2011Inventors: Thomas Yiu-Tai Tam, Norman Aminuddin, John A. Young
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Publication number: 20110151255Abstract: A nanofiber, which is prepared by using a fabrication method comprising the steps of spinning a spinning solution prepared by dissolving at least one precursor for metal, metal oxide, or metal complex oxide with a polymer mixture comprising at least two polymers having different molecular weights and glass transition temperatures in a solvent and thermally treating the spun fiber, comprises close-packed nanoparticles of a metal, a metal oxide, a metal complex oxide or a mixture thereof and has excellent structural, thermal, and mechanical stability as well as a uniform fiber-shape.Type: ApplicationFiled: April 5, 2010Publication date: June 23, 2011Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Il Doo Kim, Soo Hyun Kim
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Publication number: 20110117353Abstract: A fabric, fiber or article comprising a plurality of fiber bodies, the plurality of fiber bodies including a first fiber material and a second fiber material, wherein the first fiber material comprises a cellulosic material and a phase change material dispersed in the cellulosic material, the phase change material forming a plurality of domains dispersed in the cellulosic material, the phase change material having a latent heat of at least 5 Joules per gram and a transition temperature in the range of 0° C. to 100° C., the phase change material providing thermal regulation based on at least one of absorption and release of the latent heat at the transition temperature. Wherein the second fiber material comprises a fire resistant material.Type: ApplicationFiled: November 17, 2010Publication date: May 19, 2011Applicant: OUTLAST TECHNOLOGIES, INC.Inventors: Michael Henshaw, Mark Hartmann
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Patent number: 7944401Abstract: A radiating element made from a conductive-nonwoven web is incorporated into a signal emitting apparatus. The signal emitting apparatus, for instance, may comprise an RFID tag. The conductive-nonwoven web contains, in one embodiment, conductive fibers combined with pulp fibers. The conductive fibers may comprise carbon fibers. The nonwoven web may be made using a conventional paper-making process. The resulting conductive web is not only well suited for use as an antenna, but is also relatively inexpensive to manufacture and can be easily incorporated into numerous products.Type: GrantFiled: May 29, 2008Date of Patent: May 17, 2011Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Sudhanshu Gakhar, Duane Josephe Shukoski, Thomas Michael Ales, Shawn Jeffery Sullivan, Andrew Mark Long, Davis-Dang H. Nhan, Sridhar Ranganathan
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Publication number: 20110104491Abstract: A functionally doped polycrystalline ceramic laser medium and method of making thereof are provided. The medium includes a solid state polycrystalline Ytterbium doped Yttria or Scandia (Yb:Y2O3 or Yb:Sc2O3) laser medium with a discrete or continuous gradient doping profile and methods for manufacturing the same. The doping profile can be two- or three-dimensional and can vary depending upon the laser geometry, the pumping scheme, and the benefits to be desired from the laser medium's structure. The grading direction can be linear, axial, radial, or any combination thereof. The material can be made from a combination of doped and undoped solid shapes, loose powders, and green shapes, and can be diffusion bonded or densified to a desired final shape using techniques such as pressureless sintering, hot pressing, hot forging, spark plasma sintering, and hot isostatic pressing (HIPing), or their combinations.Type: ApplicationFiled: October 30, 2009Publication date: May 5, 2011Applicant: The Government of the United States of America as represented by the Secretary of the NavyInventors: Leslie Brandon Shaw, Jasbinder S. Sanghera, Guillermo R. Villalobos, Woohong Kim, Ishwar D. Aggarwal
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Publication number: 20110100346Abstract: Abrasive grain powder, in particular intended for machining silicon ingots, such that the granulometric fraction D40-D60 comprises more than 15% and less than 80%, as percentages by volume, of grains having circularity of less than 0.85.Type: ApplicationFiled: February 6, 2009Publication date: May 5, 2011Inventors: Yves Boussant-Roux, Jostein Mosby, Ana-Maria Popa, Arne Menne, Abhaya Kumar Bakshi
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Publication number: 20110081546Abstract: The present invention relates to a method for preparing a nano-composite comprising carbon nanotube and metal, more precisely a method for preparing a carbon nanotube-metal composite comprising the steps of preparing a dispersion solution by dispersing carbon nanotube in a reductive solvent; preparing a mixed solution by adding a stabilizer and a metal precursor; and reducing the metal precursor by heating the mixed solution, and a carbon nanotube-metal composite prepared by the same. The method of the present invention favors the production of a carbon nanotube-metal composite which is characterized by even metal particles from some nm to hundreds nm in size and even dispersion of those particles to be bound to carbon nanotube.Type: ApplicationFiled: September 26, 2008Publication date: April 7, 2011Applicant: Bioneer CorporationInventors: Jae Ha Kim, Kug Jin Yun, Myung Kuk Jin
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Publication number: 20110079276Abstract: With a view to realizing a titanium oxide structure that has a large surface area and enables efficient transfer of ions and electrons by virtue of titanium oxide particles connected to one another, an object of the invention is to develop a material useful as an active material for dye-sensitized solar cells, and a process for producing the material; a porous titanium oxide composition and a process for producing the composition; and a photoelectric conversion element comprising the titanium oxide structure or porous titanium oxide composition.Type: ApplicationFiled: June 19, 2009Publication date: April 7, 2011Applicant: OSAKA GAS CO., LTD.Inventors: Hitoshi Nishino, Ryoichi Nishida, Hiroaki Matsuyoshi, Hiroki Sakamoto, Haruo Tomita, Hidekazu Hayama, Minoru Tabuchi, Nobuko Ichimura, Tomoe Deguchi
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Patent number: 7919181Abstract: The invention relates to a metal sheet, or a component made of a metallic material, comprising a layer system on the surface with at least the following layers: a) a conversion layer, comprising no more than 1 mg chromium per m2, b) a layer of a cross-linked organic polymer system with a thickness in the range of 0.5 to 2.5 ?m, comprising, in relation to the total mass of said layer, 2 to 25 wt. % of an electrically conductive pigment having a specific weight of 3 g/cm3 maximum, however no more than 5 wt. % of the electrically conductive pigment having a specific weight of more than 3 g/m3. A coating material and a coating method for the production of the layer b).Type: GrantFiled: July 1, 2009Date of Patent: April 5, 2011Assignee: Henkel AG & Co. KGaAInventors: Eva Wilke, Manuela Göske-Krajnc, Reiner Wark, Guadalupe Sanchis Otero, Stephan Müller, Marcel Roth, Wolfgang Lorenz, Karsten Hackbarth, Andreas Kunz
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Patent number: 7906208Abstract: Composite fibers including carbon nanotubes, at least one other type of particles provided in colloidal form and intimately and evenly mixed with the carbon nanotubes wherein the particles are evenly dispersed throughout the whole body of the fibers.Type: GrantFiled: October 26, 2005Date of Patent: March 15, 2011Inventors: Philippe Poulin, Thibaud Vaugien
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Publication number: 20110059287Abstract: Disclosed herein are fibers, such as staple fibers, comprising at least one polymeric resin and at least one coated filler, wherein the at least one coated filler has an average particle size of less than or equal to about 3 microns, and wherein the at least one coated filler is present in an amount of less than or equal to about 50% by weight, relative to the total weight of the fibers. Also disclosed herein are methods for producing staple fibers, webs, fabrics, and carpets comprising adding at least one filler to at least one polymeric resin and processing the resulting mixture.Type: ApplicationFiled: September 2, 2010Publication date: March 10, 2011Inventor: Larry McAmish
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Patent number: 7902098Abstract: A cubic boron nitride sintered material where wear resistance is suppressed from decreasing having excellent chipping resistance and a cutting tool made thereof are provided. The sintered material is constituted from cubic boron nitride particles that are bound by a binder phase, while the binder phase contains a carbide of at least one kind of metal element selected from among metals of groups 4, 5 and 6 of the periodic table and a nitride of at least one kind of metal element selected from among metals of groups 4, 5 and 6 of the periodic table coexisting therein, and therefore the particles can be suppressed from coming off and the binder phase can be suppressed from wearing and coming off at the same time, thereby making the sintered material having high wear resistance and particularly excellent chipping resistance.Type: GrantFiled: October 26, 2005Date of Patent: March 8, 2011Assignee: Kyocera CorporationInventors: Kenji Noda, Daisuke Shibata
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Publication number: 20110052913Abstract: Disclosed herein are monofilament fibers comprising at least one polymeric resin and at least one coated filler, wherein the at least one coated filler has an average particle size of less than or equal to about 3 microns and/or has a top cut of less than or equal to about 10 microns, and wherein the at least one coated filler is present in an amount of less than or equal to about 50% by weight, relative to the total weight of the monofilament fibers. Also disclosed herein are methods for producing monofilament fibers comprising adding ground calcium carbonate to at least one polymeric resin and extruding the resulting mixture.Type: ApplicationFiled: January 19, 2009Publication date: March 3, 2011Inventor: Larry McAmish
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Publication number: 20110045292Abstract: An abrasive article includes an elongated body, a bonding layer including a metal overlying a surface of the elongated body, and a coating layer including a polymer material overlying the boding layer. The abrasive article further includes abrasive grains contained within the bonding layer and coating layer, and wherein the bonding layer comprises an average thickness (tbl) at least about 40% of the average grit size of the abrasive grains.Type: ApplicationFiled: August 16, 2010Publication date: February 24, 2011Applicants: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Yinggang Tian, Ran Ding, Susanne Liebelt, Krishnamoorthy Subramanian
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Publication number: 20110045078Abstract: The invention relates to a process for producing cellulosic shaped articles with stabilized inclusions in a microfine dispersion of nonpolar organic compounds and mixtures by a dry-wet extrusion process. The shaped articles produced in this way exhibit by comparison with unmodified cellulose fibers a substantially increased storage capacity for heat and/or nonpolar active substances. They are suitable in particular for use in textiles for clothing, industrial textiles, leisure, medicine and cosmetics. Potential functional effects imparted include the physical effect of heat storage and/or the uniform and finely meterable storage and release of nonpolar active substances and plant extracts from the interior of the fibers of the shaped articles. It is possible through a suitable choice of the nonpolar portion to produce by this process also fibers capable of absorbing liquid or gaseous nonpolar substances.Type: ApplicationFiled: November 11, 2008Publication date: February 24, 2011Inventors: Axel Kolbe, Hardy Markwitz, Sabine Riede, Marcus Krieg
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Patent number: 7892992Abstract: Readily-fibrillable fibers of PVA polymer, having good chemical resistance, hydrophilicity, weather resistance and water resistance have a flattened cross-sectional profile and have a mean thickness D (?m) that satisfies the following formula (1): 0.4?D?5??(1) wherein D=S/L; S indicates the cross-section area (?m2) of the fibers; and L indicates the length (?m) of the major side of the cross section of the fibers. The fibers can be used for making nonwoven fabrics.Type: GrantFiled: March 10, 2004Date of Patent: February 22, 2011Assignee: Kuraray Co., Ltd.Inventors: Hideki Kamada, Tomohiro Hayakawa
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Patent number: 7879442Abstract: The present invention relates to a composite of vapor grown carbon fiber and inorganic fine particles comprising vapor grown carbon fiber, each fiber filament of the carbon fiber having a structure with hollow space extending along its axis, a diameter of 0.001 to 1 ?m and an aspect ratio of 5 to 15,000; and inorganic fine particles having a particle size of 0.0001 to 5 ?m, the particles being deposited onto the surface of the carbon fiber, wherein the ratio of the average diameter of the vapor grown carbon fiber to the average particle size of the inorganic fine particles is 1 0.01 to 1:5; the ratio by mass of the vapor grown carbon fiber to the inorganic fine particles is 1:0.005 to 1:50; and the carbon crystal structure of the carbon fiber is maintained and the surface characteristics are modified.Type: GrantFiled: September 15, 2004Date of Patent: February 1, 2011Assignee: Showa Denko K.K.Inventors: Toshio Morita, Chiaki Sotowa, Ryuji Yamamoto
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Patent number: 7879093Abstract: An artificial bone composite structure is provided. This structure includes a fibrous matrix that itself includes a plurality of fibers. Also, the structure includes a plurality of hydroxyapatite (HA) particles. These particles are dispersed within the fibrous matrix. Also, the HA particles have controlled size and aspect ratios and are aligned along long axes of the fibers. In some instances, the fibers include poly-(L-lactic acid) (PLLA).Type: GrantFiled: March 26, 2008Date of Patent: February 1, 2011Assignee: University of ConnecticutInventors: Mei Wei, Fei Peng, Zhi-kang Xu
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Publication number: 20110017378Abstract: There is provided a polyester fiber which has few defects such as voids due to catalyst particles, and low variation in physical properties and minimal fluff generation. The polyester fiber of the invention comprises laminar nanoparticles composed of a divalent metal and a phosphorus compound and having side lengths of 5-100 nm and an interlayer spacing of 1-5 nm. There are also provided a tire cord, tire, belt-reinforcing fiber material and belt, comprising the polyester fiber.Type: ApplicationFiled: January 12, 2010Publication date: January 27, 2011Applicant: Teijin Fibers LimitedInventors: Shintaro Shimada, Junichi Togasaki, Fuyuki Terasaka, Seiji Ito
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Patent number: 7871700Abstract: A method of manufacturing composite fibers comprising two distinct layers having different compositions and physico-chemical properties and controlled, homogenous thicknesses, wherein one of two layers comprises carbon nanotubes and the composite fibers are obtained from carbon nanotube fibers and a first solution of a selected concentration of colloidal particles intended to constitute the second layer, comprising the following steps: placing the fibers in contact, by lateral surfaces thereof, with a surface of a second solution which is adapted to chemically cause aggregation of the colloidal particles and is completely or partially immersed in the second solution, the immersed thickness of the fibers defining the immersion area, placing the thus pre-coated fibers in contract, on the same lateral surface, with a surface of the first colloidal particle solution and immersed in it at most up to the immersion area to locally form a colloidal gel with a fixed thickness determined by the concentration of the firType: GrantFiled: October 26, 2005Date of Patent: January 18, 2011Assignee: Centre National de la Recherche Scientifique - CNRSInventors: Philippe Poulin, Thibaud Vaugien
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Publication number: 20110003152Abstract: A microcapsule comprising A) a core containing a hydrophobic liquid or wax, B) a polymeric shell comprising a) a polymer formed from a monomer mixture containing: i) 1 to 95% by weight of a hydrophobic mono functional ethylenically unsaturated monomer, ii) 5 to 99% by weight of a polyfunctional ethylenically unsaturated monomer, and iii) 0 to 60% by weight of other mono functional monomer, and b) a further hydrophobic polymer which is insoluble in the hydrophobic liquid or wax. The invention includes a process for the manufacture of particles and the use of particles in articles, such as fabrics, and coating compositions, especially for textiles.Type: ApplicationFiled: November 6, 2007Publication date: January 6, 2011Applicant: Ciba Holding Inc.Inventor: Bryan David Grey
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Publication number: 20100331457Abstract: The present invention relates to surface-mineralized organic fibers comprising organic fibers having a length in the millimeter range, the surface of which is at least partially coated with finely divided alkaline earth carbonate nanoparticles by means of binders based on copolymers comprising as monomers one or more dicarboxylic acids and one or more monomers from the group of diamines, triamines, dialkanolamines or trialkanolamines and epichlorohydrin, a method for producing such surface-mineralized organic fibers, aqueous slurries thereof, their use in papermaking, in surface finishing of paper, plastic, cement and clay surfaces, in paints and varnishes and the use of the inventive binders for coating the organic fibers with nano alkaline earth carbonates.Type: ApplicationFiled: December 2, 2008Publication date: December 30, 2010Inventors: Matthias Buri, René Vinzenz Blum, Patrick A.C. Gane
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Patent number: 7855161Abstract: The purpose of the present invention is to provide a photocatalytic fiber which excels in durability, and decomposition ability against harmful components and can be mass-produced at low cost, a fabric using the fiber, and a fabric product using the fabric. The photocatalytic fiber of the present invention contains a photocatalyst being attached to the fiber. The fiber is preferably having an aspect of forming a thread to which the photocatalyst being attached by spinning after dipping the fiber in a solution at least containing the photocatalyst, an aspect of forming the thread to which the photocatalyst being attached by dipping the fiber in the solution containing at least the photocatalyst after spinning, and an aspect wherein the photocatalyst is a photocatalytic apatite. The fabric of the present invention is characterized by using the photocatalytic fiber. The fabric product of the present invention is characterized by using the fabric.Type: GrantFiled: December 21, 2009Date of Patent: December 21, 2010Assignee: Fujitsu LimitedInventors: Noriyasu Aso, Masato Wakamura
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Patent number: 7854945Abstract: Graphitic nanotubes, which includes tubular fullerenes (commonly called “buckytubes”) and fibrils, which are functionalized by chemical substitution or by adsorption of functional moieties. More specifically the invention relates to graphitic nanotubes which are uniformly or non-uniformly substituted with chemical moieties or upon which certain cyclic compounds are adsorbed and to complex structures comprised of such functionalized fibrils linked to one another. The invention also relates to methods of introducing functional groups onto the surface of such fibrils.Type: GrantFiled: April 26, 2006Date of Patent: December 21, 2010Assignee: Hyperion Catalysis International, Inc.Inventors: Alan Fischer, Robert Hoch, David Moy, Chun-Ming Niu, Naoya Ogata, Howard Tennent
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Publication number: 20100310861Abstract: The present invention describes polymer compositions containing boron nitride particles that are encapsulated in layers of turbostratic carbon. The polymers so prepared exhibit enhanced thermal conductivity.Type: ApplicationFiled: June 8, 2009Publication date: December 9, 2010Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventor: SALAH BOUSSAAD
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Patent number: 7828121Abstract: An elevator support, such as a cable or a belt connected with an elevator car or counterweight, has load-bearing synthetic material strands, which are reinforced by the introduction of a second phase and have a higher modulus of elasticity than that of the unreinforced strands.Type: GrantFiled: November 20, 2003Date of Patent: November 9, 2010Assignee: Inventio AGInventor: Lorenzo Parrini
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Patent number: 7824768Abstract: Disclosed is a carbon fibrous structure which comprises a granular part and 2-20 pieces of carbon fibers each of which has an outside diameter of 15-100 nm and which are extend outwardly from the granular part, wherein the granular part is produced in a growth process of the carbon fibers, wherein the size of granular part is 1.3 or more of times larger than the outside diameter of the carbon fibers, and wherein the mean length of the carbon fibers is not more than 20 ?m. The carbon fibrous structure improves the physical properties of the matrix, such as electric, mechanical, or thermal properties, while maintaining the other properties of the matrix, even when added at a small amount.Type: GrantFiled: November 17, 2006Date of Patent: November 2, 2010Assignee: Hodogaya Chemical Co., LtdInventors: Jiayi Shan, Fuminori Munekane, Takayuki Tsukada, Kazuhiro Osato
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Publication number: 20100248572Abstract: The invention concerns a Lyocell fiber, containing a material selected from the group consisting of pearl powder, ground nacre and mixtures thereof. For the manufacture of the fiber according to the invention, a process is used comprising the steps of manufacturing a spinning solution of cellulose in an aqueous tertiary amine oxide, preferably N-methylmorpholine-N-oxide (NMMO) spinning the spinning solution to fibers, and being characterized in that a material selected from the group consisting of pearl powder, ground nacre and mixtures thereof is admixed to the spinning solution and/or to a precursor thereof.Type: ApplicationFiled: September 15, 2008Publication date: September 30, 2010Applicant: LENZING AKTIENGESELLSCHAFTInventors: Heinrich Firgo, Heidrun Fuchs
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Publication number: 20100239850Abstract: A method for fabricating a composite material includes providing a free-standing carbon nanotube structure having a plurality of carbon nanotubes, introducing at least two reacting materials into the carbon nanotube structure to form a reacting layer, activating the reacting materials to grow a plurality of nanoparticles, wherein the nanoparticles are spaced from each other and coated on a surface of each of the carbon nanotubes of the carbon nanotube structure.Type: ApplicationFiled: November 25, 2009Publication date: September 23, 2010Applicants: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Jia-Ping Wang, Kai-Li Jiang, Qun-Qing Li, Shou-Shan Fan
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Publication number: 20100221969Abstract: A functional fiber, preparation method thereof and the fabric made of it are provided. The preparation method includes the following steps: rolling and milling plural first polyolefine chips, constant thermoplastic elastomer (TPE) and plural functional particles into plural masterbatches in twin-screw extruder; melting and mixing the plural functional masterbatches and plural second polyolefine chips which are the same as the first polyolefine into the composite material, wherein the final content of the plural functional particles are 1-10 wt. % based on the weight of the composite material; producing fibers with the composite material by spinning, cooling, heat stretching, and heat setting. The fiber may be made into fabric. The fiber and fabric have the function of deodorization, antibiosis, mildew-proof or generating negative ion and further improve the air filtration effect.Type: ApplicationFiled: May 6, 2010Publication date: September 2, 2010Applicant: NOVEKO TRADING 2008 LLCInventors: Hung-jen CHEN, Tina HUANG
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Publication number: 20100221525Abstract: The invention relates to zinc oxide nanoparticles having an average particle size, determined by particle correlation spectroscopy (PCS), in the range from 3 to 20 nm whose particle surface has been modified by means of at least one copolymer comprising at least one monomer containing hydrophobic radicals and at least one monomer containing hydrophilic radicals, dispersed in an organic solvent, characterised in that they are obtainable by a process in which in a step a) one or more precursors of the nanoparticles are converted into the nanoparticles in an alcohol, in a step b) the growth of the nanoparticles is terminated by addition of at least one copolymer comprising at least one monomer containing hydrophobic radicals and at least one monomer containing hydrophilic radicals when the absorption edge in the UV/VIS spectrum of the reaction solution has reached the desired value, and optionally in step c) the alcohol from step a) is removed and replaced by another organic solvent, to isolated particles, and tType: ApplicationFiled: October 26, 2006Publication date: September 2, 2010Inventors: Gerhard Jonschker, Matthias Koch
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Patent number: 7785810Abstract: The present invention relates to novel methods and compositions for detection and isolation of cancer cells with metastatic potential. The invention further relates to assays for measuring the metastatic potential of such cancer cells and drug screening assays for the identification of agents having anti-metastatic potential. The present invention further provides methods and compositions for inhibiting the metastatic potential of cancer cells by modulating the activity of serine integral membrane proteases [(SIMP) consisting of seprase and dipedidyl peptidase IV (DPPIV)] expressed on the surface of metastasizing cancer cells.Type: GrantFiled: August 28, 2001Date of Patent: August 31, 2010Assignee: The Research Foundation of State University of New YorkInventor: Wen-Tien Chen
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Patent number: 7776441Abstract: A thermoplastic composition comprises poly(arylene ether) having an initial intrinsic viscosity greater than 0.25 dl/g as measured in chloroform at 25° C.; a polyolefin having a melt temperature greater than or equal to 120° C. and a melt flow rate of 0.3 to 15; a first block copolymer having a aryl alkylene content greater than or equal to 50 weight percent based on the total weight of the first block copolymer; a second block copolymer having an aryl alkylene content less than 50 weight percent based on the total weight of the second block copolymer; and a flame retardant, wherein the poly(arylene ether) is present in an amount greater than the amount of polyolefin. The composition is useful in the production of covered wire.Type: GrantFiled: October 24, 2005Date of Patent: August 17, 2010Assignee: Sabic Innovative Plastics IP B.V.Inventors: Vijay R. Mhetar, Vijay Rajamani
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Publication number: 20100203351Abstract: Composite materials exhibiting very high strength properties and other characteristics are disclosed. The materials comprise one or more nanomaterials dispersed within one or more matrix materials. The nanomaterials can be in a variety of forms, such as for example, carbon nanotubes and/or nanofibers. The matrix material can be glass, fused silicas, or metal. Also disclosed are various processes and operations to readily disperse and uniformly align the nanotubes and/or nanofibers in the flowing matrix material, during production of the composite materials.Type: ApplicationFiled: June 7, 2007Publication date: August 12, 2010Inventor: Taysir H. Nayfeh
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Publication number: 20100196697Abstract: Reinforcing fibers with small particles having a longest average dimension of approximately 0.01 nanometer to approximately 30 micrometers physically and/or chemically bonded directly to their surfaces to form protuberances thereon and a method and system for making these modified fibers are disclosed. The particles directly bonded to the surfaces of the fibers, serve to enhance physical properties of composite articles which incorporate such fibers as reinforcement.Type: ApplicationFiled: April 5, 2010Publication date: August 5, 2010Inventors: Sean Charles D'Silva, Thomas E. Burghardt
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Patent number: 7767297Abstract: A fiber containing an eggshell membrane component. The fiber is produced by spinning using a solution containing the eggshell membrane component by employing an electrospinning method. A fiber assembly formed from the fiber obtained by employing the electrospinning method imitates a natural eggshell membrane, whereby sufficient air permeability is exhibited. Since the fiber assembly is also excellent in adherence to skin tissue of a human body and stypticity, the fiber assembly may be preferably used as a wound dressing or a cosmetic sheet.Type: GrantFiled: July 29, 2008Date of Patent: August 3, 2010Assignee: Idemitsu Technofine Co., Ltd.Inventors: Takeharu Tajima, Nobuo Kusamoto
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Publication number: 20100189940Abstract: The invention provides titanium-dioxide-containing composites, a method for their production and the use of these composites.Type: ApplicationFiled: August 27, 2007Publication date: July 29, 2010Applicant: SACHTLEBEN CHEMIE GMBHInventors: Sonja Grothe, Petra Fritzen, Jochen Winkler, Bernd Rohe, Birgit Bittmann, Frank Haupert, Nicole Knör
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Publication number: 20100183875Abstract: A particle-rod nanostructure is disclosed. The nanostructure comprises an inorganic nanoparticle coated with a capping agent and an organic crystalline rod nucleated on the capped inorganic nanoparticle in a one-dimensional growth pattern.Type: ApplicationFiled: March 18, 2010Publication date: July 22, 2010Applicant: WAYNE STATE UNIVERSITYInventors: GUANGZHAO MAO, STEPHANIE L. BROCK, DONGZHONG CHEN, RUOMIAO WANG, INDIKA U. ARACHCHIGE
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Patent number: 7758960Abstract: Disclosed is a composite material comprising PPTA (poly-p-phenyleneterephthalamide) and nanotubes having an aspect ratio of at least 100 and a cross-sectional diameter of 5 nm or less, the composite material containing up to 12 wt. % of nanotubes, obtainable by adding the nanotubes to sulfuric acid, decreasing the temperature to solidify the mixture, adding PPTA to the solid mixture, heating to above the solidifying point and mixing the mixture, and spinning, casting, or molding the mixture to the composite material.Type: GrantFiled: March 27, 2009Date of Patent: July 20, 2010Assignee: Teijin Aramid B.V.Inventors: Hanneke Boerstoel, Hendrik Swierenga, Aart Klinkhamer
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Publication number: 20100178477Abstract: The invention is directed to stretched polyolefin materials having an E-modulus of at least 17 GPa, preferably at least 20 GPa and a strength of at least 400 MPa, comprising a polyolefin and a nano-material, such as a nucleating agent, which material is obtainable by a process comprising a stretching step wherein the material is stretched at a stretch ratio of at least 16. The materials of the invention can be produced by a process comprising the steps of: providing a compound of a polyolefin material and a nano-material, e.g. a nucleating agent, wherein the nano-material is dispersed preferably on a molecular scale in the polyolefin material, extruding this compound, followed by a stretching step wherein the material is stretched to a total stretch ratio of at least 16.Type: ApplicationFiled: February 5, 2008Publication date: July 15, 2010Inventor: Johannes Antonius Joseph Jacobs
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Publication number: 20100178503Abstract: Compositions that are intimate blends of ultrahigh molecular weight polyethylene and high-density polyethylene (HDPE), and which are melt spinnable. The compositions include certain quasi-spherical particles. Also disclosed is a method of melt spinning from such compositions and the multi-filament fibers produced thereby. The fibers of the invention are useful in a variety of applications.Type: ApplicationFiled: January 9, 2009Publication date: July 15, 2010Inventors: Thomas Yiu-Tai Tam, Norman Aminudddin, John A. Young
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Publication number: 20100150980Abstract: The present invention relates to nanoparticles containing a non-persistent support material and metallic silver particles on the surface of said support material as further specified in the description; to composites containing said nanoparticles; to the manufacture of said nanoparticles and composites and to the use of said nanoparticles and composites.Type: ApplicationFiled: April 4, 2007Publication date: June 17, 2010Applicants: Perlen Converting Ag, ETH ZurichInventors: Stefan Bokorny, Wendelin Jan Stark, Stefan Fridolin Loher
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Patent number: 7736737Abstract: The present invention relates to soft touch fibers and nonwoven fabrics made from such fibers. The fibers comprise an incompatible polymer system which leads to the soft touch quality. The fibers comprise a mixture of at least two thermoplastic polymers each having different viscosities and wherein the mixture has an interfacial tension from about 0.5 to about 20 mN/m, and wherein the mixture comprises a portion of the fiber surface. The fibers may include from 40-98 percent of a polyolefin continuous phase and from 2 to 60 weight percent of an amorphous thermoplast dispersed phase, such as polystyrene or polyamide.Type: GrantFiled: January 30, 2004Date of Patent: June 15, 2010Assignee: Dow Global Technologies Inc.Inventors: Jozef J. I. Van Dun, Daniel R. Bosak, John E. Flood, Edward N. Knickerbocker, Thomas Allgeuer, Karin Katzer, Miguel A. Prieto Goubert
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Publication number: 20100129591Abstract: The instant invention generally provides polymer organoclay composite comprising a molecularly self-assembling material and an organoclay, and a process of making and an article comprising the polymer organoclay composite.Type: ApplicationFiled: November 20, 2009Publication date: May 27, 2010Inventors: Leonardo C. Lopez, Scott T. Matteucci, Sarada P. Namhata
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Publication number: 20100129634Abstract: The instant invention generally provides polymer inorganic-particulate composite fiber comprising a molecularly self-assembling material and an inorganic-particulate, and a process of making and an article comprising the polymer inorganic-particulate composite fiber.Type: ApplicationFiled: November 20, 2009Publication date: May 27, 2010Inventors: Leonardo C. Lopez, Scott T. Matteucci
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Publication number: 20100129655Abstract: Disclosed are a ripcord for optic cable and a method of manufacturing the same. The ripcord for optic cable has a coating layer formed by applying a coating solution, which includes a binder and a colorant dispersed in the binder, to a surface of a folded and twisted yarn formed by folding and twisting together wholly aromatic polyamide filaments.Type: ApplicationFiled: May 8, 2008Publication date: May 27, 2010Applicant: Kolon Industries, Inc.Inventors: Chang-Bae Lee, Tae-Hak Park, Jin-Woo Kim