Polyamide, Polyimide Or Polyester Patents (Class 428/395)
  • Publication number: 20140060409
    Abstract: The invention relates to a reinforcing textile thread (82) for an inflatable sail, such as a rigging sail or a flight sail, including a plurality of filaments which are agglutinated so as to form an elongate unitary body (820), and a binder (822) which ensures the cohesion among at least some of the filaments (821) of the unitary body (820), and which consists of a coating material. In order to guarantee an effective, directed reinforcement effect within an inflatable sail without limiting the lifespan of said sail, the unitary body has, in the cross-section thereof, an oblong outline, wherein the ratio of the maximum width (e) of said outline, which corresponds to a thickness of the unitary body, to the maximum length (l) of said outline, which corresponds to a width of the unitary body, is less than 0.06, a plurality of filaments (821) being arranged in series over the thickness of the unitary body.
    Type: Application
    Filed: May 4, 2012
    Publication date: March 6, 2014
    Applicant: PORCHER INDUSTRIES
    Inventors: Laurence Pollet, Cécile Roibert, Sébastien Feraudet
  • Publication number: 20140065421
    Abstract: An insulated wire includes a conductor, and a polyimide insulation layer formed on an outer periphery of the conductor. The insulation layer includes a polyimide including a repeating unit represented by formula (1) and a repeating unit represented by formula (2). A first acid component in the repeating unit represented by the formula (1) and a second acid component in the repeating unit represented by the formula (2) are mixed in a molar ratio range of 85:15 to 40:60 as expressed by a molar ratio (the first acid component:the second acid component). R as a residue of a diamine component in the formulas (1) and (2) includes a residue of 4,4?-diaminodiphenyl ether and a residue of one selected from a group of diamines represented by the formulas (3) to (8). A storage elastic modulus of the polyimide at 325° C. is not less than 50 MPa.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 6, 2014
    Inventors: Takami USHIWATA, Yuki HONDA, Shuta NABESHIMA, Hideyuki KIKUCHI
  • Publication number: 20140057513
    Abstract: Embodiments of the invention provide a thread (4, 5) for producing a sheet material (2), having a mesh structure, for an insect screen (1), the thread being composed essentially of a carrier material that is triboelectrically chargeable by an air stream, it is proposed that the thread is provided, in particular completely, with a coating (11) containing a hydrophobic coating material.
    Type: Application
    Filed: July 9, 2010
    Publication date: February 27, 2014
    Applicants: SAATI Deutschland GmbH, TRITTEC AG
    Inventors: Carsten Bräuer, Rolf Brüggemann, Norbert Gernemann, Rolf Büdding
  • Publication number: 20140054062
    Abstract: An insulating varnish forms an insulating coating film having a shape that corresponds to the shape of an opening of a die, having a uniform thickness. The insulating varnish is applied onto a surface of a conductor, subsequently passes through a die to remove the excess applied insulating varnish, and is then dried or baked to form an insulating coating film on the surface of the conductor. The insulating varnish has a viscosity of 10 Pa·s or more measured by a B-type viscometer at 30° C. The insulating varnish preferably contains no filler, and is preferably a polyimide precursor solution. Since the insulating varnish has a high viscosity, baking and solidification can be performed while maintaining a shape formed when the insulating varnish passes through a die.
    Type: Application
    Filed: November 5, 2012
    Publication date: February 27, 2014
    Applicants: SUMITOMO ELECTRIC WINTEC, INC., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kengo Yoshida, Masaaki Yamauchi, Masataka Shiwa, Yuji Hatanaka, Junichi Imai, Jun Sugawara, Toru Shimizu, Hideaki Saito, Yuudai Furuya
  • Publication number: 20140045983
    Abstract: Composite reinforcer (R-2) capable of adhering directly to a diene rubber matrix, which can be used as a reinforcing element for a pneumatic tyre, comprising: one or more reinforcing thread(s) (20), for example a carbon steel cord; covering said thread, individually each thread or collectively several threads, a layer of a thermoplastic polymer composition comprising at least one thermoplastic polymer, the glass transition temperature of which is positive, a poly(p-phenylene ether) (PPE) and a functionalized unsaturated thermoplastic styrene (TPS) elastomer, the glass transition temperature of which is negative, said TPS elastomer bearing functional groups selected from epoxide, carboxyl and acid anhydride or ester groups. Process for manufacturing such a composite reinforcer and rubber article or semi-finished product, especially a pneumatic tyre, incorporating such a composite reinforcer.
    Type: Application
    Filed: January 31, 2012
    Publication date: February 13, 2014
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Vincent Abad, Sébastien Rigo, Emmanuel Custodero
  • Publication number: 20140045984
    Abstract: Composite reinforcer (R-2) that is self-adhesive by curing to a diene rubber matrix, which can be used as reinforcing element for a pneumatic tire, comprising: one or more reinforcing thread(s) (20), for example a carbon steel cord; covering said thread, individually each thread or collectively several threads, a layer of a thermoplastic polymer composition comprising on the one hand a thermoplastic polymer, the glass transition temperature of which is positive, on the other hand a functionalized unsaturated thermoplastic stirene elastomer, the glass transition temperature of which is negative, said elastomer containing functional groups selected from epoxide, carboxyl and acid anhydride or ester groups. Process for manufacturing such a composite reinforcer and rubber article or semi-finished product, especially a pneumatic tire, incorporating such a composite reinforcer.
    Type: Application
    Filed: November 16, 2011
    Publication date: February 13, 2014
    Inventors: Vincent Abad, Sébastien Rigo, Emmanuel Custodero
  • Publication number: 20140037891
    Abstract: Disclosed are spray-on anti-soil formulations, and methods for treating fibers, carpets, and fabrics with the same. The anti-soil formulations comprise a synergistic blend of an anti-soil component and a stain blocker component adapted to be sprayed-on a fiber, carpet, or fabric instead of known exhaust applications. The anti-soil component can be either fluorochemical or non-fluorochemical based, while the stain blocker can comprise any chemical that blocks positively charged dye sites. Fibers, carpets, and fabrics treated with the anti-soil formulations exhibit superior anti-soil characteristics compared to sprayed-on fluorochemicals and exhibit similar anti-soil characteristics compared to known exhaust application.
    Type: Application
    Filed: November 9, 2011
    Publication date: February 6, 2014
    Inventor: Sundar Mohan Rao
  • Publication number: 20140008154
    Abstract: A belt for suspending or driving an elevator car includes a plurality of wires arranged into one or more cords; and a jacket substantially retaining the one or more cords. At least one of the one or more cords includes a plurality of non-load bearing filler filaments interposed between adjacent wires of the plurality of wires. An elevator system includes an elevator car, one or more sheaves, and one or more belts operably connected to the car and interactive with the one or more sheaves for suspending or driving the elevator car. Each belt of the one or more belts includes a plurality of wires arranged into one or more cords and a jacket substantially retaining the one or more cords. At least one of the one or more cords includes a plurality of non-load bearing filler filaments interposed between adjacent wires of the plurality of wires.
    Type: Application
    Filed: March 21, 2011
    Publication date: January 9, 2014
    Applicant: OTIS ELEVATOR COMPANY
    Inventors: John P. Wesson, Gopal R. Krishnan, Daniel Rush, Vijay Jayachandran
  • Publication number: 20130295808
    Abstract: A composition comprising an inner core of UHMWPE fibres having a molecular weight greater than 500,000 Daltons with a denier of from about 700 to about 3000, preferably from about 1000 to about 2500, more preferably from about 1500 to about 2000, most preferably from about 1500 to about 1800, with an overall thickness of 0.2 to 0.8 mm and a nylon coating.
    Type: Application
    Filed: April 8, 2013
    Publication date: November 7, 2013
    Inventors: Dariush Firouzi, Daniel Foucher, Habiba Bougherara, Pradeep Agrawal
  • Patent number: 8575045
    Abstract: An article is provided that includes a polymeric fiber that has an excess number of surface active reactive moieties relative to the number of surface reactive moieties found on the fiber in a native state. A particle is bonded covalently to the fiber through an intermediate coupling agent. Multiple particles can be covalently bonded to the fiber, the multiple particles can be bonded uniformly or asymmetrically around the fiber diameter. A process for modifying a fiber includes creating surface activated reactive moieties thereon. The activated fiber is then exposed to a liquid solution containing a coupling agent to form a covalent bond. The coupling agent is also reacted with a particle in a liquid solution to form a covalent bond between the coupling agent and the particle. The coupling agent is covalently bonded to either a particle and then bonded to the fiber, or vice versa.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: November 5, 2013
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Steven H. McKnight, Robert E. Jensen, Joshua A. Orlicki
  • Publication number: 20130289533
    Abstract: The present invention relates to a medical device. In particular, the present invention concerns a medical device which can be detected by means of magnetic resonance imaging (MRI).
    Type: Application
    Filed: October 18, 2011
    Publication date: October 31, 2013
    Applicant: MARVIS TECHNOLOGIES GMBH
    Inventors: Klaus Duering, Joachim Georg Pfeffer
  • Publication number: 20130273366
    Abstract: Composite reinforcer (R-2) that is self-adhesive, by curing, to a diene rubber matrix, which can be used as reinforcing element for a pneumatic tire, comprising: one or more reinforcing thread(s) (20), for example a carbon steel cord; a first layer (21) of a thermoplastic polymer, the glass transition temperature of which is positive, for example a polyamide, covering said thread, individually each thread or collectively several threads; a second layer (22) of a composition comprising a poly(p-phenylene ether) (“PPE”) and a functionalized diene elastomer bearing functional groups selected from epoxide, carboxyl, acid anhydride and acid ester groups, in particular an epoxidized SBR, covering the first layer (21). Process for manufacturing such a composite reinforcer and rubber article or semi-finished product, especially a pneumatic tire, incorporating such a composite reinforcer.
    Type: Application
    Filed: September 16, 2011
    Publication date: October 17, 2013
    Applicants: Michelin Recherche et Technique S.A., Compagnie Generale des Establissements Michelin
    Inventors: Vincent Abad, Sébastien Rigo, Emmanuel Custodero
  • Publication number: 20130225721
    Abstract: The invention relates to a fixed and/or stabilized fiber structure from a fibrous material as well as from an agent for its fixing and stabilizing. The agent for fixing and stabilizing is a statistical copolyester which is formed from the diacid components terepththalic acid and, optionally, isophthalic acid as well as the diol components butanediol, diethylene glycol and triethylene glycol. A method of manufacturing this fiber structure is also provided. The fiber structure is used as a reinforcement material for polymer matrices, in particular epoxy resins. A fiber composite material containing at least one thermosetting resin as well as the fiber structure in accordance with the invention is furthermore provided.
    Type: Application
    Filed: February 21, 2013
    Publication date: August 29, 2013
    Applicant: EMS-PATENT AG
    Inventor: EMS-Patent AG
  • Publication number: 20130177282
    Abstract: This invention relates to a fiber reinforced plastic material with improved flexibility and high tensile strength for use in optic cables. The strength member composition comprises a polypropylene based thermoplastic resin, a continuous fiber having a modulus greater than 80 PGa, and talc.
    Type: Application
    Filed: September 21, 2011
    Publication date: July 11, 2013
    Inventors: Buo Chen, Bharat I. Chaudhary, Chester J. Kmiec, Jeffrey M. Cogen
  • Publication number: 20130160931
    Abstract: The present invention is directed to a method of constructing a tire, comprising: constructing a coated filament, the coated filament constructed by coating a filament with a coating material, the coating material comprising at least one diene based elastomer and heat expandable thermoplastic resin particles containing therein a liquid or solid capable of generating a gas upon vaporization, decomposition, or a chemical reaction under heating; encasing the coated filament into containment within an uncured or pre-cured flexible tire component; building a green tire from tire components including the uncured or pre-cured flexible tire component and the encased coated filament; curing the green tire including the flexible tire component containing the coated filament; removing the filament from the cured flexible tire component to leave within the flexible tire component a substantially unobstructed air passageway.
    Type: Application
    Filed: November 5, 2012
    Publication date: June 27, 2013
    Inventors: Francesco Sportelli, Gaston Emile Jacobs, Etienne Besnoin
  • Patent number: 8466251
    Abstract: A polyamide-imide resin insulating paint according to the present invention includes polyamide-imide resin containing no halogen element in its molecular chain which is dissolved in a polar solvent, in which the polyamide-imide resin contains an aromatic diisocyanate component (A) having three or more benzene rings or an aromatic diamine component (E) having three or more benzene rings in a monomer, and a ratio M/N between a molecular weight (M) of the polyamide-imide resin per repeat unit and an average number (N) of amide groups and imide groups is equal to or more than 200.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: June 18, 2013
    Assignee: Hitachi Magnet Wire Corp.
    Inventors: Hideyuki Kikuchi, Yuzo Yukimori
  • Patent number: 8460790
    Abstract: The present invention provides an aggregate of nanofibers having less spread of single fiber fineness values that can be used in wide applications without limitation to the shape and the kind of the polymer, and a method for manufacturing the same. The present invention is an aggregate of nanofibers made of a thermoplastic polymer having single fiber fineness by number average in a range from 1×10?7 to 2×10?4 dtex and single fibers of 60% or more in fineness ratio have single fiber fineness in a range from 1×10?7 to 2×10?4 dtex.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: June 11, 2013
    Assignee: TORAY Industries, Inc.
    Inventors: Takashi Ochi, Akira Kishiro, Shuichi Nonaka
  • Publication number: 20130139340
    Abstract: A brush fiber and a method for manufacturing the brush fiber are provided. The brush fiber includes a fibrous core portion, a covering portion provided on a surface of the core portion. A leading end portion of the core portion has a tapered shape, and the covering portion is made of conductive material. The conductive material is a sulfide of at least one type of metal selected from the group consisting of Cu, Ag, and Pd.
    Type: Application
    Filed: June 22, 2012
    Publication date: June 6, 2013
    Applicant: NIHON SANMO DYEING CO., LTD.
    Inventors: Takeshi Hiramoto, Hiroshi Utsumi
  • Publication number: 20130108822
    Abstract: This invention relates to polyester-based fibrous substrates being surface coated at least partially with a coating composition comprising perfluoropolyethers. Processes of application of the coating compositions are also provided. The polyester-based fibrous substrates after surface coating have improved wear and/or abrasion resistance relative to uncoated fibrous substrates.
    Type: Application
    Filed: July 13, 2011
    Publication date: May 2, 2013
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Tengjiao Hu
  • Patent number: 8398906
    Abstract: The invention pertains to a method for making a polymer-additive composite particle from a dope by jet spinning the dope to obtain a pulp, fibril or fibrid, wherein the solvent of the dope is selected from N-methyl-2-pyrrolidone, N,N?-dimethylformamide, N,N?-dimethylacetamide, tetramethylurea, and 4 to 75 wt % of a composition consisting of 2 to 95 wt % of a para-aramid polymer and 5-98 wt % of a solid additive material, to a total of 100 wt %, and wherein the aramid polymer is dissolved in the solvent; or coagulating the dope by means of a rotor-stator apparatus in which the polymer solution is applied through the stator on the rotor so that the precipitating polymer-additive composite particle is subjected to shear forces while they are in a plastic deformable stage.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: March 19, 2013
    Assignee: Teijin Aramid B.V.
    Inventors: Anton Johannes Josef Hendriks, Mirjam Ellen Oldenzeel, Johannus Maria Bergmans, Tetsuya Akamatsu
  • Patent number: 8367194
    Abstract: It is an object of the present invention to provide round fiber-reinforced plastic strand, a manufacturing method thereof, and a fiber-reinforced sheet which eliminate limitation in forming speed and limit on number of products capable of being manufactured at a time, do not require use of a release agent, eliminate the necessity of operations such as roughing after forming, and thus permit a considerable reduction of the manufacturing cost and a remarkable increase in the product quality.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: February 5, 2013
    Assignee: Nippon Steel Composite Co., Ltd.
    Inventors: Toshikazu Takeda, Masaki Shimada, Hidehiko Hino, Masaki Arazoe
  • Publication number: 20130029151
    Abstract: A synthetic fiber yarn and process for providing same, the yarn comprising a plurality of fibers of inherently flame resistant polymer having a surface finish of perfluorinated alkyl ether oil, wherein the perfluorinated alkyl ether has a molecular weight of from 1000 to 4730 and the yarn has a char length when burned of 6 cm or less.
    Type: Application
    Filed: January 31, 2012
    Publication date: January 31, 2013
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Teresa C. Madeleine, Bhatnagar Chitrangad
  • Patent number: 8361618
    Abstract: A composite configured to release refrigerant therefrom comprises a substrate material comprising polarized fibers of glass, polyamide, phenylene sulfide, carbon or graphite or combinations of two or more thereof having bonded thereon a metal compound comprising a complex compound of a polar gaseous refrigerant and a metal salt and/or a hydrated metal hydroxide and/or a metal hydroxide of a metal comprising alkali metal, alkaline earth metal, transition metal, zinc, cadmium, tin, aluminum, or two or more thereof, at a concentration of at least about 0.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: January 29, 2013
    Assignee: Rocky Research
    Inventors: Uwe Rockenfeller, Kaveh Khalili
  • Patent number: 8357455
    Abstract: The invention relates to the use of a molding composition which comprises at least 50% by weight of a copolyamide, which is composed of the following monomer combination: a) from 65 to 99 mol % of a substantially equimolar mixture composed of an unbranched aliphatic diamine having from 6 to 18 carbon atoms and of an unbranched aliphatic dicarboxylic acid having from 6 to 18 carbon atoms, ?where the mixture composed of diamine and dicarboxylic acid comprises an average of from 8 to 12 carbon atoms, b) from 1 to 35 mol % of a substantially equimolar mixture composed of a cycloaliphatic diamine having from 8 to 20 carbon atoms and of a dicarboxylic acid having from 6 to 18 carbon atoms, for production of a printable or printed item, such as a ski topcoat.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: January 22, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Franz-Erich Baumann, Roland Wursche, Harald Häger, Sonja Bollmann, Kirsten Alting
  • Publication number: 20130014774
    Abstract: A filter material of a filter element configured for application in a smoking article may include a fibrous substrate material finished with a fiber finish composition. The fiber finish composition may be formulated to selectively interact with at least one target component of mainstream smoke drawn through the filter element during use of the smoking article to selectively filter the target component from the smoke. The filter element may include multiple filter segments. Each filter segment may include a filter material having a finish composition formulated to selectively interact with a different target component. The various filter segments may be combined and/or arranged to selectively filter the mainstream smoke to achieve desired characteristics. Each filter segment may be formed from the same fibrous substrate material.
    Type: Application
    Filed: July 14, 2011
    Publication date: January 17, 2013
    Inventors: Andries D. Sebastian, Stephen Benson Sears, Anthony Richard Gerardi
  • Patent number: 8353344
    Abstract: Fiber aggregate comprising organic polymeric fibers, wherein the organic polymeric fibers have an average length in a range from 2 to 20 millimeters, an average diameter up to 100 micrometer, and comprise at least 75 percent by solid volume of the fiber aggregate, wherein the fiber aggregate has an unrestrained bulk density of at least 0.05 g/cm3, and wherein at least 85% by volume of the fiber aggregate disassociates to provide dispersed fibers. The fiber aggregates are useful, for example, for flowback control in wellbores and reservoirs.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: January 15, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: James G. Carlson, Michael R. Berrigan, Michael D. Crandall, Ignatius A. Kadoma, Yong K. Wu
  • Patent number: 8338800
    Abstract: Disclosed are photoluminescent fibers containing photoluminescent phosphorescent materials and photoluminescent fluorescent materials which emit electromagnetic energies to give an emission signature. Also disclosed are the use of the inventive fibers, fabrics made therefrom, and objects containing the fiber.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: December 25, 2012
    Assignee: Performance Indicator, LLC
    Inventors: Timothy E. Bortz, Satish Agrawal, James G. Shelnut
  • Publication number: 20120308821
    Abstract: A composite material for water or wastewater treatment is described. The composite material has a buoyant substrate, an adsorbant for adsorbing organic compounds, a photocatalyst for degrading organic compounds, and an enhancer for facilitating mass transfer between the adsorbent and the photocatalyst, increasing the selectivity of the composite material, or for proving the photocatalytic efficiency is described. The adsorbent, photocatalyst, and enhancer are immobilized on the substrate.
    Type: Application
    Filed: January 28, 2011
    Publication date: December 6, 2012
    Inventors: Renbi Bai, Hui Han
  • Publication number: 20120301719
    Abstract: A strand is coated with a powdered material by first applying a layer of hot polymer resin to the strand, and spraying the powdered material onto the resin-coated strand from at least three nozzles disposed along the processing path and spaced radially therearound. The spray apparatus is disposed within nested containers so as to limit the escape of overspray powder. The powder-coated strand may be heat-set to increase the adhesion of the powder.
    Type: Application
    Filed: July 5, 2012
    Publication date: November 29, 2012
    Inventors: Willorage Rathna Perera, Gerald J. Mauretti
  • Patent number: 8283003
    Abstract: Artificial turf has a base layer, a multiplicity of blades fixed in and projecting upward from the base layer, and a mass of damping material on the base layer and through which the blades project. Each of the blades is at least partially formed of a polyester of terephthalic acid made from waste. The polyester is polyethylene terephthalate (PET) or polybutylene terephthalate (PBT), both from waste. The base layer is a flat primary layer, preferably a textile and preferably consists of plastic, a polyolefin and/or a polyester of terephthalic acid, preferably a polyester of terephthalic acid from waste.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: October 9, 2012
    Assignee: Motech GmbH Technology & Systems
    Inventor: Juergen Morton-Finger
  • Publication number: 20120251823
    Abstract: The invention provides a tow prepreg having improved productivity and performance. In various embodiments, the tow prepreg has 90% or more resin impregnation and a FAW greater than 600 g/m2. A method of making the prepreg by impregnating each continuous reinforcement fiber strand with a thermosetting resin is also disclosed. In various embodiments, the resin is applied to the reinforcement fiber while flattening the fiber between heated rollers positioned in parallel to each other.
    Type: Application
    Filed: April 4, 2012
    Publication date: October 4, 2012
    Applicant: NEWPORT ADHESIVES AND COMPOSITES, INC.
    Inventors: Freddy Maldonado, Jesus Fernandez-Marquez, Atsushi Nohara, Paul Kyle
  • Publication number: 20120202059
    Abstract: A dry type electrical insulation is provided. The insulation includes a base fiber having an outer surface and a first melting point and a binder material, coated onto the outer surface of the base fiber, having a second melting point. In this insulation, the second melting point is lower than the first melting point. A dry type insulation matrix is also provided. The insulation matrix includes a plurality of composite fibers having a base fiber having a first melting point and a binder material co-extruded therewith, having a second melting point. In this insulation matrix, the second melting point is lower than the first.
    Type: Application
    Filed: June 9, 2011
    Publication date: August 9, 2012
    Applicant: WAUKESHA ELECTRIC SYSTEMS, INC.
    Inventors: Thomas M. GOLNER, Shirish P. MEHTA, H. Jin SIM
  • Patent number: 8231968
    Abstract: The present invention provides to a method of producing fiber from tourmaline anion fiber; of which, polypropylene or polyethylene chip, TPE and submicrometer tourmaline particle are prepared and then rolled into submicrometer tourmaline agglomerate through granulation by double screw; then, take submicrometer tourmaline agglomerate and polypropylene or polyethylene chip, of which the content of tourmaline agglomerate accounts for 1˜10% of gross weight, and TPE for 1˜40% of gross weight; tourmaline agglomerate and polypropylene or polyethylene are melted into composite fiber or filter material via spinning, such that the fiber or filter material can yield anion and present outstanding gas permeability and mechanical property.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: July 31, 2012
    Assignee: Noveko Trading 2008 LLC
    Inventors: Ming-Fung Lin, Hung-Jen Chen, Chia-Jen Chen, Yung-Chien Chen, Chao-Mulan Chen
  • Patent number: 8206808
    Abstract: A prepreg composite material that includes a fiber layer and a resin comprising a thermoset resin component, a curing agent and a fibrous micropulp. The micropulp component is an aramid fiber having a volume average length of from 0.01 to 100 micrometers. The prepreg is useful in composite panel construction for minimizing fluid permeation into the cured structure. This prepreg is particularly suitable for making honeycomb sandwich panels. Film adhesives, liquid and paste resins containing aramid fiber micropulp are also disclosed.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: June 26, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Subhotosh Khan, Halvar Young Loken
  • Patent number: 8182915
    Abstract: A method is provided for spinning a multifilament thread from a thermoplastic material, including the steps of extruding the melted material through a spinneret with a plurality of spinneret holes into a filament bundle with a plurality of filaments, winding the filaments as thread after solidifying, and cooling the filament bundle beneath the spinneret, whereby in a first cooling zone the gaseous cooling medium is directed in such a way that it flows through the filament bundle transversely, the cooling medium leaving the filament bundle practically completely on the side opposite the inflow side, and in a second cooling zone beneath the first cooling zone, the filament bundle being cooled further essentially through self-suction of the gaseous cooling medium surrounding the filament bundle.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: May 22, 2012
    Assignee: Diolen Industrial Fibers B.V.
    Inventors: Hendrik Middeljans, Eric Heuveling, Bastiaan Krins, Johannes Frederick Boer
  • Patent number: 8173256
    Abstract: An aromatic polyamide fiber comprising an aromatic polyamide containing a structural repeating unit of the following formula (1), and a structural repeating unit of the following repeating unit (2) in an amount of 30 mol % or more to the whole amount of the aromatic polyamide structural units, the fiber having strength of 20 cN/dtex or more and modulus of elongation of 500 cN/dtex or more: wherein Ar1 and Ar2 each independently represent an unsubstituted or substituted divalent aromatic group.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: May 8, 2012
    Assignee: Teijin Techno Products Limited
    Inventors: Yasuhiro Marumoto, Shigeru Ishihara
  • Patent number: 8163071
    Abstract: Disclosed is a hollow fiber that includes a hollow positioned at the center of the hollow fiber, macropores positioned at adjacent to the hollow, and mesopores and picopores positioned at adjacent to macropores, and the picopores are three dimensionally connected to each other to form a three dimensional network structure. The hollow fiber includes a polymer derived from polyamic acid, and the polyamic acid includes a repeating unit obtained from aromatic diamine including at least one ortho-positioned functional group with respect to an amine group and dianhydride.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: April 24, 2012
    Assignee: IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Young Moo Lee, Ho Bum Park, Sang Hoon Han, Chul Ho Jung
  • Patent number: 8153252
    Abstract: The present invention relates to an industrial high tenacity polyester fiber with superior creep properties and a method of preparing the same, and more particularly to an industrial polyester fiber having a mono-filament fineness of 5 to 15 dpf, an intrinsic viscosity of 0.8 to 1.25 dl/g, and a creep change rate of 4.7% or less, wherein the creep change rate is measured at 160° C. for 24 hours while giving a load corresponding to a strain of 3% after heat-treating the fiber at 220° C. for 2 minutes while giving a load of 1 g/d, and the load corresponding to the strain of 3% is based on a value obtained from a load-strain curve of the fiber before heat-treatment, and a method of preparing the same.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: April 10, 2012
    Assignee: Kolon Industries, Inc
    Inventor: Young-Soo Lee
  • Patent number: 8147956
    Abstract: To obtain an ultrafine heat-shrinkable conjugate fiber at high productivity, in which a flow-drawing state of a polyester undrawn yarn is realized easily and stably. By drawing undrawn yarn comprising a conjugated polyester polymer and olefin polymer, a flow-drawing process can be easily and stably realized using conventional production facilities; and the heat-shrinkable fiber, a drawn intermediate, and an ultrafine hot-melt adhesive conjugate fiber produced by redrawing the drawn intermediate of the present invention can be obtained with high productivity and excellent runnability. More specifically, the ultrafine hot-melt adhesive conjugate fiber obtained by redrawing can be drawn at a heretofore unseen high drawing magnification, and the fiber structure of the olefin polymer constituting part of the conjugate fiber is markedly developed.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: April 3, 2012
    Assignees: ES Fiber Visions Co., Ltd., ES Fiber Visions Hong Kong Limited, ES Fiber Visions LP, ES Fiber Visons APS
    Inventors: Minoru Miyauchi, Tadashi Ideguchi, Masashi Teranaka
  • Patent number: 8124167
    Abstract: A medical device such as a wire guide has a lubricious and/or therapeutic coating adhered to an etched, carbonaceous polymeric surface, for example a sodium-etched polymer surface. A method for preparing a lubricious and/or therapeutic coating on a medical device includes etching a polymeric portion of the device to create a carbonaceous surface and applying a lubricious and/or therapeutic coating on the etched surface.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: February 28, 2012
    Assignee: Cook Medical Technologies LLC
    Inventors: Tamisha Clark, Barry H. Chilton
  • Publication number: 20120021218
    Abstract: In various embodiments, the present application provides electrically conductive metal-plated fibers and continuous processes of preparing metal-plated fibers. Additionally, provided are polymeric articles comprising the provided metal-plated fibers or other fibers prepared by the provided process, said articles having electromagnetic interference shielding effectiveness.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 26, 2012
    Applicant: SYSCOM ADVANCED MATERIALS, INC.
    Inventors: Jar-Wha Lee, Ching Chang
  • Patent number: 8084571
    Abstract: Disclosed are wholly aromatic polyamide filament and a method of manufacturing the same, characterized in that, in a process of preparing wholly aromatic polyamide polymer, a multiple tubular feed pipe for polymeric monomer and polymerization solvent with specific construction of adjacent inner paths 11a and outer paths 11b which are alternately arranged one another is used to feed either aromatic diacid chloride A or aromatic diamine dissolved in the polymerization solvent B into a polymerization reactor 20 through corresponding one among the inner and outer paths 11a and 11b. The present invention is effective to progress uniform and homogeneous polymerization over all of area of a polymerization reactor 20 leading to reduction of deviation in degree of polymerization, since polymeric monomers are miscible and react together very well immediately after putting the monomers into the reactor 20.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: December 27, 2011
    Assignee: Kolon Industries, Inc.
    Inventors: In-Sik Han, Jae-Young Lee, Seung-Hwan Lee, Chang-Bae Lee, So-Yeon Kwon
  • Patent number: 8083771
    Abstract: The present disclosure relates to compositions comprising a copolymer that includes a first monomer and a second monomer that is different from the first monomer, wherein both the first and second monomer are selected from the group consisting of 3-sulfopropyl acrylate potassium salt, sodium acrylate, N-(tris(hydroxyl methyl)methyl)acrylamide, and 2-acrylamideo-2-methyl-1-propane sulfonic acid. The present disclosure further relates to methods for preparing the copolymer compositions and shaped articles comprising the copolymers.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: December 27, 2011
    Assignee: Tyco Healthcare Group LP
    Inventors: Ahmad R. Hadba, Brian Cuevas, Frank R. Schiretz, Joshua B. Stopek
  • Patent number: 8080314
    Abstract: Methods and articles providing for precise aligning, positioning, shaping, and linking of nanotubes and carbon nanotubes. An article comprising: a solid surface comprising at least two different surface regions including: a first surface region which comprises an outer boundary and which is adapted for carbon nanotube adsorption, and a second surface region which is adapted for preventing carbon nanotube adsorption, the second region forming an interface with the outer boundary of the first region, at least one carbon nanotube which is at least partially selectively adsorbed at the interface. The shape and size of the patterns on the surface and the length of the carbon nanotube can be controlled to provide for selective interfacial adsorption.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: December 20, 2011
    Assignee: Northwestern University
    Inventors: Chad A. Mirkin, Yuhuang Wang, Daniel Maspoch
  • Publication number: 20110253791
    Abstract: A polymeric thread includes a transparent polymeric substrate; a first patterned layer with a miniature pattern disposed at a side of the polymeric substrate; and a first florescent layer containing a florescent taggant disposed at a side of the patterned layer that is facing away from the polymeric substrate. An authentication tag utilizing the polymeric thread and a method for making the polymeric thread are also provided.
    Type: Application
    Filed: August 17, 2010
    Publication date: October 20, 2011
    Inventor: Shu Tuen TANG
  • Patent number: 8025970
    Abstract: A fishing line is produced by forming a monofilament by subjecting a resin composition (C) containing 90 to 99.3% by weight of a polyamide resin (A) and 0.7 to 10% by weight of a silicone compound (B) having a number average molecular weight of 100,000 to 2,000,000 to melt-spinning and then drawing. This method can provide a fishing line which is excellent in abrasion resistance and also excellent in visibility. In this method, it is preferable to conduct melt-kneading of a part of the polyamide resin (A) with the silicone compound (B) in advance, adding of the residual polyamide resin (A) and further melt-kneading, subsequent melt-spinning, and drawing at a draw ratio of from 4 to 7.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: September 27, 2011
    Assignee: Sunline Co., Ltd.
    Inventors: Junji Nakazaki, Manabu Hamamoto, Hidenobu Tsutsumi, Toshiaki Ihara, Ichiro Ono, Yoshio Fujiwara
  • Patent number: 8021584
    Abstract: Blending of thermoplastic polyester with fiber-forming polyamide in the production of melt-colored melt-spun fibers results in improved color strength and aesthetics, and dimensional stability.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: September 20, 2011
    Assignee: Universal Fibers, Inc.
    Inventors: Matthew B. Studholme, Arthur Roth, Jr., Brendan Francis McSheehy, Jr.
  • Patent number: 8017662
    Abstract: A process for producing a synthetic fiber composition with reclaimed post consumer carpet yarn, wherein face yarn is shaved from post consumer carpet using a shaving device to provide shaved face yarn, the shaved face yarn is reduced in size, contaminants are removed using mechanical screeners, the shave face yarn is melt filtered, and then fiber spun.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: September 13, 2011
    Assignee: Universal Fibers, Inc.
    Inventors: George Taylor Hoover, Jr., Milton Keith Roark, Brendan Francis McSheehy, Jr., Matthew Benjamin Studholme
  • Patent number: 8007904
    Abstract: 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: Grant
    Filed: January 12, 2009
    Date of Patent: August 30, 2011
    Assignee: Fiber Innovation Technology, Inc.
    Inventor: Jeffrey S. Dugan
  • Patent number: RE43880
    Abstract: This invention relates to the composition and a solvent-free process for preparing novel imide oligomers and polymers specifically formulated with effective amounts of a dianhydride such as 2,3,3?,4-biphenyltetra carboxylic dianydride (a-BPDA), at least one aromatic diamine and an endcapped of 4-phenylethynylphthalic anhydride (PEPA) or nadic anhydride to produce imide oligomers that possess a low-melt viscosity of 1-60 poise at 260-280° C. When the imide oligomer melt is cured at about 371° C. in a press or autoclave under 100-500 psi, the melt resulted in a thermoset polyimide having a glass transition temperature (Tg) equal to and above 310° C. A novel feature of this process is that the monomers; namely the dianhydrides, diamines and the endcaps, are melt processable to form imide oligomers at temperatures ranging between 232-280° C. (450-535° F.) without any solvent.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: December 25, 2012
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventor: Chun-Hua Chuang