Multifilament Yarns Patents (Class 57/243)
  • Publication number: 20150145314
    Abstract: Disclosed is a high strength polyester fiber for a seat belt, and in particular, a polyester fiber for a seat belt, which has intrinsic viscosity of 0.8 to 1.5 dl/g, tensile strength of 8.8 g/d or more, and total fineness of 400 to 1800 denier. A method of preparing the fiber is disclosed. The polyester fiber includes filaments having high strength, low modulus, and high elongation to significantly lower shrinkage, while securing excellent mechanical properties, it is possible to manufacture a seat belt having excellent impact absorption and significantly improved abrasion resistance and heat resistant strength retention, even with a woven density of 260 yarns/inch or less.
    Type: Application
    Filed: June 28, 2013
    Publication date: May 28, 2015
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Byoung-Wook An, Gi-Woong Kim, Seong-Young Kim, Young-Soo Lee
  • Publication number: 20150093574
    Abstract: Provided herein are methods for the manufacture of fibers from solution-phase peptide-based polymers by electrospinning, and compositions produced thereby. In particular embodiments, various embodiments provide electrospinning supramolecular fibers from low concentration peptide amphiphile filaments.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Inventors: Alok S. Tayi, E. Thomas Pashuck, III, Samuel I. Stupp
  • Publication number: 20140290205
    Abstract: A spinneret is used to reduce filament breakage during spinning of multifilament yarn being stretched at a high stretch ratio. The spinneret has a first group of spinning holes with capillaries and a second group of spinning holes with capillaries. The capillaries of the second group of spinning holes have a lower length to diameter (L/D) ratio than the capillaries of the first group of spinning holes. All of the capillaries have the same diameter, which is 100 ?m or less.
    Type: Application
    Filed: October 2, 2012
    Publication date: October 2, 2014
    Inventors: Leonardus Antonius Godfried Busscher, Michiel Jan Adriaan Jaarsveld
  • Publication number: 20140261852
    Abstract: A fiber blend, a yarn spun from the fiber blend, and a fabric made from the yarn, wherein the fiber blend is a blend of staple fibers comprising non-FR cellulosic fibers, modacrylic fibers, and aramid fibers intimately blended together. The blend is such that the cellulosic fibers constitute at least about 45 wt. % of the fiber blend, a weight ratio of the modacrylic fibers to the cellulosic fibers is at least 0.8 but not exceeding 1.0, and the aramid fibers make up no more than 15 wt. % of the fiber blend.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Inventors: Quentin Robert Bonner, Rachel W. Boyette, John E. Ashley
  • Patent number: 8826636
    Abstract: The invention relates to a method for obtaining high-tenacity aramid yarn, wherein the yarn is made of a copolymer obtained from a mixture of monomers comprising DAPBI, an aromatic para-diamine, and an aromatic para-diacid, wherein the yarn is heated in at least two process steps, characterized in that in a first step the yarn is heated at a temperature of 200 to 360° C. at a tension of at least 0.2 cN/dtex, followed by a second step wherein the yarn is heated at a temperature of 370 to 500° C. at a tension of less than 1 cN/dtex. The invention further pertains to a multifilament aramid yarn spun from a sulfuric acid spin dope and having a tenacity of at least 2500 mN/tex.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: September 9, 2014
    Assignee: Teijin Aramid B.V.
    Inventors: Hanneke Boerstoel, Johannes Bos, Adriaan Anton Schaap, Dennis Wilbers, Leonardus Antonuis Godfried Busscher, Antonius Henricus Maria Schotman, Kurt Rainer Hans-Heinrich Stolze
  • Publication number: 20140238524
    Abstract: A hybrid cord formed from a plurality of component plies wherein at least one of the plies has a length that is from 1 to 50 percent longer than the other plies and a method of providing a cord with predetermined twist and component ply lengths.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 28, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Nathan W. Love, Brain R. France, Mark Allan Lamontia, Clifford K. Deakyne
  • Publication number: 20140227546
    Abstract: A high-carbon steel wire has as steel composition: a carbon content ranging from 0.40 weight percent to 0.85 weight percent, a silicon content ranging from 1.0 weight percent to 2.0 weight percent, a manganese content ranging from 0.40 weight percent to 1.0 weight percent, and a chromium content ranging from 0.0 weight percent to 1.0 weight percent. The remainder is iron. This steel wire has as metallurgical structure a volume percentage of retained austenite ranging from 4 percent to 20 percent, while the remainder is tempered primary martensite and untempered secondary martensite. The steel wire is obtained by partitioning after quenching.
    Type: Application
    Filed: September 19, 2012
    Publication date: August 14, 2014
    Applicant: NV BEKAERT SA
    Inventors: Christophe Mesplont, Walther Van Raemdonck
  • Publication number: 20140190143
    Abstract: A continuous spin-draw-winding process to prepare a drawn polyester yarn suitable for use in high-speed tires and run-flat tires having high energy to break in combination with a good dimensional stability, including extruding molten polyester through spinning holes in a spinneret to form a bundle of molten spun filaments, solidifying the spun filaments by a gaseous cooling medium, fixing the spinning speed of the solidified filaments at a first godet in the range of 4050 to 5000 m/min, drawing the solidified filaments at a draw ratio less than 1.75 to form drawn filaments. The drawn polyester yarn has a high amorphous orientation distribution, a high crystallinity and a coarse structure. Dipped cords including such polyester drawn yarns exhibit excellent dimensional stability at higher temperatures.
    Type: Application
    Filed: May 16, 2012
    Publication date: July 10, 2014
    Applicant: API INSTITUTE
    Inventors: Bastiaan Krins, Jannes Veurink, Petrus Joannes Maria Oerlemans
  • Publication number: 20140165529
    Abstract: The invention relates to a composite material in which at least one reinforcement thread is deposited on a surface according to a path having at least one curved area on the deposition surface, wherein the reinforcement thread is connected to the surface by a polymeric binder. A twist is applied to the reinforcement thread before the deposition thereof at least in order to compensate the length differences of the extreme paths of the thread on either side of the width as measured in a direction parallel to the deposition surface.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 19, 2014
    Applicant: Hexcel Reinforcements, S.A.S.
    Inventors: Jean-Marc Beraud, Alain Bruyere
  • Patent number: 8753741
    Abstract: A fine denier poly(trimethylene arylate) spun drawn fiber is characterized by high denier uniformity. A process for preparing uniform fine denier yarns at spinning speeds of 4000 to 6000 m/min is further disclosed. The poly(trimethylene arylate) fiber hereof comprises 0.1 to 3% by weight of polystyrene dispersed therewithin. Fabrics prepared therefrom are also disclosed.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: June 17, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventor: W. Douglas Bates
  • Patent number: 8747468
    Abstract: Biocompatible coatings and spin finishes that can be applied to polyhydroxyalkanoate (PHA) polymers, and medical devices made from PHA polymers, have been developed. The coatings impart good lubricity to PHA polymers, particularly to fibers and braids made from these materials, making the coatings ideal for use on medical devices such as PHA braided sutures. The spin finishes can be applied to PHA fibers to facilitate their manufacture, and also for their conversion to other products, including medical textiles. The spin finishes serve to protect multifilament fiber bundles, and keep them intact following extrusion, and also to impart lubricity to the fiber bundles and monofilament fibers so that they are not damaged in subsequent processing steps particularly in textile processing. The coating reduces tissue drag of, for example, braided sutures.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: June 10, 2014
    Assignee: Tepha, Inc.
    Inventors: David P. Martin, Said Rizk, Jon I. Montcrieff, Dennis W. Connelly
  • Publication number: 20140137532
    Abstract: A loop rope assembly includes loop rope assembly includes a main rope segment having a plurality of rope strands and first and second ends, the plurality of rope strands of the same material and coextensive with the main rope segment; a first end loop provided on the first end of the main rope segment; a second end loop provided on the second end of the main rope segment, the first end loop and the second end loop connecting and establishing continuity between the plurality of rope strands at the first and second ends, respectively, of the main rope segment; the plurality of rope strands disposed in closely adjacent proximity to each other at each of a plurality of spaced-apart intervals along each of the plurality of rope strands; at least one of the plurality of rope strands axially movable with respect to another of the plurality of rope strands at each of the plurality of spaced-apart intervals; and at least one sinusoidal intermediate loop defined by the at least one of the plurality of rope strands betw
    Type: Application
    Filed: October 22, 2013
    Publication date: May 22, 2014
    Applicant: LOOPROPE, LLC
    Inventor: JEFFERY DANIEL DAHL
  • Publication number: 20140130475
    Abstract: A rope includes elongate bodies having a length axis parallel to a length of the rope or showing helix angles smaller than 2°. The elongate bodies include tapes of ultra-high molecular weight polyethylene. The tapes have a width to thickness ratio of at least 10 and a polymer solvent content below 0.05 wt. %.
    Type: Application
    Filed: June 21, 2012
    Publication date: May 15, 2014
    Applicant: TEIJIN ARAMID B.V.
    Inventors: Bertil Nicolaas Joseph Marie Van Berkel, Mattheus Bertus Van Leeuwen, Soon Joo Bovenschen
  • Publication number: 20130273344
    Abstract: Disclosed is a polyester yarn which can be used in a fabric for an airbag. A content of one or more inorganic fillers selected from the group consisting of TiO2, SiO2, and BaSO4 is 200 ppm or less, a breaking elongation is 15% or more, a dry shirinkage rate is 3% or more, and the sum of the breaking elongation and the dry shirinkage rate is 20% or more, a production method thereof, and a fabric for an airbag produced therefrom. The polyester yarn has remarkably reduced stiffness and excellent mechanical properties of high strength, high elongation, and high shirinkage.
    Type: Application
    Filed: December 30, 2011
    Publication date: October 17, 2013
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Young-Jo Kim, Byoung-Wook An, Sang-Mok Lee, Young-Soo Lee, Gi-Woong Kim
  • Publication number: 20130267139
    Abstract: Disclosed is a polyester yarn that can be used in a fabric for an airbag. In particular, a polyester yarn having a diethylene glycol content of 1.1 to 2.5 wt % and initial modulus of 100 g/d or less, a production method thereof, and a fabric for an airbag produced therefrom are disclosed. The polyester yarn has excellent moisture and heat resistance and light resistance, and maintained excellent mechanical properties after long-term aging under high temperature and high humidity conditions. Therefore, when applied to a fabric for an airbag, the polyester yarn provides excellent packing property, shape stability, and gas barrier effect, and the impact applied to a passenger is minimized, thereby safely protecting the passenger at the same time.
    Type: Application
    Filed: December 14, 2010
    Publication date: October 10, 2013
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Young-Jo Kim, Sang-Mok Lee, Young-Soo Lee, Gi-Woong Kim
  • Publication number: 20130247535
    Abstract: Methods of making and using anti-tack additives for elastic fibers are disclosed. The elastic fibers include CE additive.
    Type: Application
    Filed: September 19, 2011
    Publication date: September 26, 2013
    Applicant: Invista North America S.a.r.l.
    Inventors: Steven P. Pardini, Ronald D. Bing-Wo, Thomas W. Teerlink
  • Publication number: 20130240105
    Abstract: An elastomer product containing a linear textile structure for reinforcement. In order to preserve the environment and resources with a constant product quality, the linear textile structure contains fibers made of polyamide 10.10.
    Type: Application
    Filed: January 2, 2013
    Publication date: September 19, 2013
    Applicant: Continental Reifen Deutschland GmbH
    Inventors: Peter Zmolek, Ulrich Speckhals, Joern Krueger, Carole Justine
  • Patent number: 8511054
    Abstract: Disclosed are a method of folding multiple filaments and a bundle of filament produced by the same. More particularly, the method of folding multiple filaments includes release-winding the filaments under a uniform release-winding tension, folding the released filaments in non-twisted states and winding the folded filaments to produce a bundle of filament, so as to effectively prevent some of the filaments in the bundle of filament from hanging down or becoming loose due to different tensions when the bundle of filament is release-wound for post processing. The bundle of filaments includes a plurality of filaments combined together in a non-twisted manner and has highly uniform weight of the filaments per unit length of the bundle of filament, wherein the standard deviation of the weight of each filament ranges from 0.0001 to 0.01 from their average weight.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: August 20, 2013
    Assignee: Kolon Industries, Inc.
    Inventors: Chang-Bae Lee, Tae-Hak Park, Il Nam
  • Publication number: 20130210306
    Abstract: Described is a flame-resistant spun yarn having: about 50 to about 95 parts by weight of a sulfonated polyoxadiazole based staple fiber comprising repeat units of Formula (I) and one or both of Formula (II) and (IIa): wherein M is a cation; and about 5 to about 50 parts by weight of a textile staple fiber having limiting oxygen index of 21 or greater and a tenacity of about 4 grams per denier or greater, based on the total amount of the polymeric fiber and the textile fiber in the yarn.
    Type: Application
    Filed: December 5, 2011
    Publication date: August 15, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Michael W. Cobb, Sharlene Renee Williams, Reiyao Zhu
  • Publication number: 20130199690
    Abstract: Multistrand metal cable of 4×(4+M) construction, which can especially be used for reinforcing tire belts for industrial vehicles, formed from four elementary strands assembled in a helix with a helix pitch P3, each elementary strand consisting of a two-layer cable of 4+M construction comprising an inner layer C1 formed from four wires of diameter D1, assembled in a helix with a pitch P1, and an unsaturated outer layer C2 of M wires, M being greater than or equal to 8 and smaller than or equal to 11, of diameter D2, these being assembled in a helix with a pitch P2 around the inner layer C1, P1 being smaller than P2, the four wires of the inner layer C1 being wound in a helix in the same twist direction as the M wires of the outer layer C2, and wherein each of the diameters D1 and D2 is greater than or equal to 0.10 mm but less than or equal to 0.50 mm.
    Type: Application
    Filed: April 21, 2011
    Publication date: August 8, 2013
    Applicants: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Henri Barguet, Emmanuel Clement
  • Patent number: 8502069
    Abstract: A protective cover for lengths of materials used in environments in which the lengths of material are moved and pulled around and subjected to abrasion, chemicals, and weather extremes. The protective cover includes a sleeve that surrounds the length of material to be protected. The sleeve has open ends and is formed of a fabric made substantially of high performance yarns.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: August 6, 2013
    Assignee: Advanced Composite Structures, LLC
    Inventors: John E. Holland, Connie W. Holland
  • Publication number: 20130196135
    Abstract: The invention provides a fiber blend, spun yarn, and textile material comprising a plurality of cellulosic fibers and a plurality of first synthetic fibers. The first synthetic fibers comprise a polyoxadiazole polymer, and the polyoxadiazole polymer comprises a plurality of first repeating units and a plurality of second repeating units, the first repeating units conforming to the structure of Formula (I) below and the second repeating units conforming to the structure of Formula (II) below Y is selected from the group consisting of chlorine, bromine, diphenylphosphine oxide, and diphenylphosphine sulfide. The invention also provides a method for protecting an individual from infrared radiation that can be generated during an electrical arc flash using such a textile material.
    Type: Application
    Filed: August 7, 2012
    Publication date: August 1, 2013
    Inventors: Shulong Li, James D. Cliver, J. Travis Greer
  • Publication number: 20130187367
    Abstract: Disclosed is a polyester yarn, wherein a room-temperature strength-elongation index (X0) indicating a ratio (T0/S0) of tensile strength (T0) to tensile elongation (S0) of the polyester yarn, measured at room temperature, and a primary high-humidity strength-elongation index (X1) indicating a ratio (T1/S1) of tensile strength (T1) to tensile elongation (S1) of the polyester yarn, measured after heat-treating the polyester yarn under conditions of a temperature of 85° C. and a relative humidity (RH) of 95±5% for 168 hours, are optimized in a predetermined range.
    Type: Application
    Filed: September 16, 2011
    Publication date: July 25, 2013
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Jae-Hyung Kim, Dong-Jin Kwak, Ki-Jeong Kim, Hee-Jun Kim, Jung-Hoon Youn, Sang-Mok Lee
  • Publication number: 20130172516
    Abstract: Disclosed is a high strength and high elongation polyester fiber being used for anchoring, mooring, or towing a ship, and particularly is a polyester fiber wherein the recovered work ratio at the elongation corresponding to 10% of the maximum load measured at room temperature is 70% or more, the recovered work ratio at the elongation corresponding to 20% of the maximum load is 50% or more, and the recovered work ratio at the elongation corresponding to 30% of the maximum load is 40% or more, a method of preparing the same, and a polyester fiber rope including the same.
    Type: Application
    Filed: September 30, 2011
    Publication date: July 4, 2013
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Young-Jo Kim, Gi-Woong Kim, Byoung-Wook An, Sang-Mok Lee, Young-Soo Lee
  • Patent number: 8474236
    Abstract: A new metal fiber yarn is provided. The metal fiber yarn (10) constitutes a construction comprising continuous metal fibers (13) forming a metal fiber yarn. The construction comprises at least 5 bundles (12) of continuous metal fibers twisted together to form a yarn. Each of the metal fiber bundles (12) comprises at least 30 metal fibers (13). The yarn comprises at least one partial yarn (11), said partial yarn comprising at least two metal fiber bundles (13) twisted around each other with a predetermined number of torsions per meter.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: July 2, 2013
    Assignee: NV Bekaert SA
    Inventors: Lisa Le Percq, Stefaan De Bondt, Henk Troost
  • Publication number: 20130152541
    Abstract: A wire rope for use in a medical procedure includes a multi-strand coil formed by twisting multiple metal wires together. In the wire rope, gaps are located between the multiple metal wires along an axis of the multi-strand coil. The gaps between the multiple metal wires include a first gap and a second gap that differ in width.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 20, 2013
    Applicant: ASAHI INTECC CO., LTD.
    Inventor: ASAHI INTECC CO., LTD.
  • Publication number: 20130091822
    Abstract: A buoyant rope is presented consisting of at least two strands, wherein each strand comprises synthetic fibers, wherein the rope is characterized in that the synthetic fibers comprise a component A) and a component B), wherein A) is at least one monofilament and B) is at least one multifilament yarn, the filaments of which are hollow-fiber filaments.
    Type: Application
    Filed: May 20, 2011
    Publication date: April 18, 2013
    Applicant: PHP FIBERS GMBH
    Inventors: Volker Siejak, Andreas Flachenecker, Petra Gottmann, Qiao Xiao
  • Publication number: 20130079816
    Abstract: The present disclosure relates to a method of forming yarns and preparing surgical devices therefrom. The yarns include at least one first filament possessing a polymer core and first reactive members known to have click reactivity on a surface thereof and at least one second filament possessing a polymer core and second reactive members known to have click reactivity on a surface thereof. The first and second reactive members are complementary such that they interact to covalently bond the filaments together.
    Type: Application
    Filed: March 24, 2011
    Publication date: March 28, 2013
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventor: Jonathan Thomas
  • Patent number: 8402733
    Abstract: A yarn (100) comprising two or more bundles (110, 120, 130), each of said bundles comprising at least thirty metal fibres (140) is described. The bundles of the yarn are twisted with one another with a predetermined number of torsions per meter, said predetermined number of torsions permeter is smaller than 80 per meter and larger than 10 per meter. By doing so, an improved flexlife of the yarn can be obtained.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: March 26, 2013
    Assignee: NV Bekaert SA
    Inventors: Kris De Greve, Xavier Amils, Steve Verstraeten, Pol Speleers
  • Publication number: 20130045653
    Abstract: A heat-resistant flame-retardant protective suit fabric of the present invention is formed of a uniform blended spun yarn including 25 to 75 mass % of polyetherimide fiber, 20 to 50 mass % of at least one fiber selected from wool and flame-retardant rayon, and 5 to 25 mass % of para-aramid fiber when the spun yarn is 100 mass %. The fabric experiences no heat shrinkage when exposed to a heat flux at 80 kW/m2 ±5% for 3 seconds in accordance with ISO 9151 Determination of Heat Transmission on Exposure to Flame. And the char length is not more than 10 cm in the longitudinal and horizontal directions in the flammability test specified in JIS L 1091A-4. Thereby, the present invention provides a protective suit fabric that provides comfort in wearing even if the suit is worn in the hot seasons or even if the wearer perspires during exertion. The fabric has high heat resistance and high flame retardance, favorable dye affinity, and the fabric can be produced at a low cost.
    Type: Application
    Filed: January 12, 2012
    Publication date: February 21, 2013
    Applicants: SABIC INNOVATIVE PLASTICS IP B.V., THE JAPAN WOOL TEXTILE CO., LTD.
    Inventors: Masanobu Takahashi, Hideki Omori
  • Publication number: 20130025758
    Abstract: Provided is a high-performance pneumatic radial tire for passenger cars which uses a hybrid cord composed of an aramid cord and a Nylon 66 cord having different twist counts for the first twist and different twist counts for the second twist, as a reinforcing belt, and thereby has improved high speed durability and steering stability.
    Type: Application
    Filed: July 24, 2012
    Publication date: January 31, 2013
    Applicant: HANKOOK TIRE CO., LTD.
    Inventor: Nam Su KIM
  • Publication number: 20120298276
    Abstract: A compact metal cable having two layers (C1, C2) of construction 1+N, rubberized in situ, usable in particular as a reinforcing element for a tire belt for a heavy industrial vehicle, comprising a core or inner layer (C1) comprising a single core wire of diameter d1, and a saturated outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2 around the layer C1. The layered cable has the following characteristics (d1, d2, p2 in mm): 0.15<d1<0.50; 0.15<d2<0.50; 8<p2<25. The core wire is surrounded by a sheath of diene rubber which fills, at least in part, the gaps between the core wire and the cords of the layer C2.
    Type: Application
    Filed: June 4, 2012
    Publication date: November 29, 2012
    Applicant: Michelin Recherche et Technique S.A.
    Inventors: Henri BARGUET, Brigitte Chauvin, Alain Domingo, Le, Tu Anh Vo
  • Patent number: 8316629
    Abstract: The PTFE real twist yarn of the present invention is a PTFE real twist yarn obtained by twisting a polytetrafluoroethylene (PTFE) multi-filament slit yarn. The yarn has a circular cross-section with a circularity in the range of 10/8 to 10/10, where the circularity is expressed by the ratio between the major axis width and the minor axis width, the average fineness of filaments is in the range of 1.5 to 200 dtex, a fineness D is in the range of 50 to 6000 dtex, and a twist coefficient K expressed by Formula (1) is in the range of 10000 to 35000: twist coefficient K=number of twists T×(the fineness D of the PTFE real twist yarn)1/2??(1) where the number of twists T denotes the number of twists per meter and the fineness D is a total fineness.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: November 27, 2012
    Assignee: Yeu Ming Ti Chemical Industrial Co., Ltd.
    Inventors: James Huang, Chin-Chun Chou, Chin-Cha Chou, Wen-I Kuo, Lei-Ti Huang
  • Publication number: 20120285135
    Abstract: Disclosed are a method of folding multiple filaments and a bundle of filament produced by the same. More particularly, the method of folding multiple filaments includes release-winding the filaments under a uniform release-winding tension, folding the released filaments in non-twisted states and winding the folded filaments to produce a bundle of filament, so as to effectively prevent some of the filaments in the bundle of filament from hanging down or becoming loose due to different tensions when the bundle of filament is release-wound for post processing. The bundle of filaments includes a plurality of filaments combined together in a non-twisted manner and has highly uniform weight of the filaments per unit length of the bundle of filament, wherein the standard deviation of the weight of each filament ranges from 0.0001 to 0.01 from their average weight.
    Type: Application
    Filed: July 26, 2012
    Publication date: November 15, 2012
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Chang-Bae LEE, Tae-Hak PARK, Il NAM
  • Patent number: 8297035
    Abstract: It is a problem of the present invention to provide a normal pressure cationic dyeable polyester being cationic dyeable under normal pressure, and having high strength. The problem can be solved by a normal pressure cationic dyeable polyester, characterized by being a copolymerized polyester having a main repeating unit including ethylene terephthalate, and including, in an acid component forming the copolymerized polyester, a metal salt of sulfoisophthalic acid (A) and a compound (B) which is a phosphonium salt of sulfoisophthalic acid or the like in such a state as to simultaneously satisfy the two mathematical expressions. Preferably, the glass transition temperature of the copolymerized polyester is within the range of 70 to 85° C., and the intrinsic viscosity of the copolymerized polyester is within the range of 0.55 to 1.00 dL/g. Further, by melt spinning the copolymerized polyester, it is possible to provide a polyester fiber.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: October 30, 2012
    Assignee: Teijin Fibers Limited
    Inventors: Tetsuya Chikatsune, Kenji Kawamura, Kei Tachibana
  • Publication number: 20120231252
    Abstract: The present invention is a composite material comprising an organic filament having a melting point of 200° C. or higher and a thermoplastic resin, characterized in that the organic filament is in the form of a twisted yarn cord or a woven or knitted fabric composed of twisted yarn cord. The composite material of the present invention is excellent in impact strength and can be used as a core material also in a sandwich material.
    Type: Application
    Filed: November 24, 2010
    Publication date: September 13, 2012
    Applicant: TEIJIN LIMITED
    Inventors: Motoomi Arakawa, Jirou Sadanobu
  • Patent number: 8171711
    Abstract: A hybrid carbon fiber spun yarn having a core region with carbon fibers as a main component, and a surrounding region with carbon fibers as a main component and covers an outer peripheral surface of the core region. 20% by mass or more of fibers forming the core region are long carbon fibers having a fiber length of 500 mm or longer. 80% by mass or more of fibers forming the surrounding region are short carbon fibers having a fiber length of less than 500 mm. A mass ratio between the long carbon fibers and the short carbon fibers (long carbon fibers:short carbon fibers) is in a range of 20:80 to 80:20.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: May 8, 2012
    Assignee: Kureha Corporation
    Inventors: Tatsuo Kobayashi, Naohiro Sonobe, Shigeki Iwamoto
  • Publication number: 20120053689
    Abstract: Biocompatible coatings and spin finishes that can be applied to polyhydroxyalkanoate (PHA) polymers, and medical devices made from PHA polymers, have been developed. The coatings impart good lubricity to PHA polymers, particularly to fibers and braids made from these materials, making the coatings ideal for use on medical devices such as PHA braided sutures. The spin finishes can be applied to PHA fibers to facilitate their manufacture, and also for their conversion to other products, including medical textiles. The spin finishes serve to protect multifilament fiber bundles, and keep them intact following extrusion, and also to impart lubricity to the fiber bundles and monofilament fibers so that they are not damaged in subsequent processing steps particularly in textile processing. The coating reduces tissue drag of, for example, braided sutures.
    Type: Application
    Filed: March 23, 2011
    Publication date: March 1, 2012
    Inventors: David P. Martin, Said Rizk, Jon I. Montcrieff, Dennis W. Connelly
  • Publication number: 20120043003
    Abstract: Provided is a steel cord for reinforcing a rubber article, which has an improved durability against so-called cuts, such as notches and perforations, which are generated in the case of treading on an obtusely or sharply pointed projection, without decreasing the strength in the axial direction of the cord, and without increasing the thickness in the radial direction, namely without increasing the weight of a tire, as well as a tire using the steel cord for reinforcing a rubber article as a reinforcing material, especially a construction vehicle tire. Also provided is a steel cord for reinforcing rubber articles with a multi-twisted structure formed by twisting a plurality of sheath strands formed by twisting a plurality of wires around a core strand formed by twisting a plurality of wires, and the core strand being constituted of an at least three-layer-twisted structure formed by twisting core filaments and sheath filaments.
    Type: Application
    Filed: April 28, 2010
    Publication date: February 23, 2012
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Hideki Masubuchi, Keisuke Nakamura
  • Publication number: 20120042768
    Abstract: A rope structure comprising a plurality of fibers combined to form a plurality of yarns which are in turn combined to form a plurality of strands. The plurality of strands are combined using a single braid process to form the rope structure defining a void space. At least one of the fibers, the yarns, and the strands are configured substantially to reduce a volume of the void space and thereby maintain a shape of the rope structure when the rope structure is under load.
    Type: Application
    Filed: March 22, 2011
    Publication date: February 23, 2012
    Applicant: SAMSON ROPE TECHNOLOGIES
    Inventors: Chia-Te Chou, Howard P. Wright, JR.
  • Publication number: 20110247311
    Abstract: A yarn spun from a plurality of nano-fibres is provided and is characterized in that at least some of the nano-fibres are folded with the folds occurring at predeterminable distances which are integer multiples of a specific spacing. The folds result from spinning the nano-fibres onto a plurality of moving conductive strips which are inclined to their direction of movement. A process and apparatus for producing such yarn is also provided.
    Type: Application
    Filed: October 23, 2007
    Publication date: October 13, 2011
    Applicant: STELLENBOSCH UNIVERSITY
    Inventors: Anton Eugene Smit, Ronald Douglas Sanderson
  • Publication number: 20110239618
    Abstract: A fire retardant fabric is manufactured from oxidized polyacrylonitrile fibers having a fineness of about 0.5 to about 1.5 denier per fiber.
    Type: Application
    Filed: March 29, 2011
    Publication date: October 6, 2011
    Inventors: James E. Hendrix, Tung-Yuan Ke, Fabrizio Balestri, Mark Zwerenz
  • Publication number: 20110240626
    Abstract: A new metal fiber yarn and methods for obtaining such a yarn are provided. The metal fiber yarn constitutes a construction comprising continuous metal fibers forming a metal fiber yarn. The construction comprises at least 5 bundles of continuous fibers, whereof at least one bundle is a bundle of metal fibers, preferably bundle drawn metal fibers. The bundles of continuous fibers are twisted together to form a yarn. Each bundle of metal fibers comprises at least 30 metal fiber filaments. The length of the continuous fiber bundles is substantially equal per unit length of the metal fiber yarn and the length of the fiber bundles per unit length of the metal fiber yarn is larger than the unit length of the metal fiber yarn itself.
    Type: Application
    Filed: November 24, 2009
    Publication date: October 6, 2011
    Inventors: Rik Mullebrouck, Hendrik Rommel, Lisa Le Percq
  • Patent number: 8028509
    Abstract: The polyethylene naphthalate fiber for industrial material having a low fatigue in a composite is a polyethylene naphthalate fiber for industrial material containing an ethylene-2,6-naphthalate unit in 80% or more, characterize by having a strength of 6 cN/dtex or more and a secondary yield point elongation degree of 8% or less. The production method thereof is a method for producing a fiber in which a fiber having been obtained by melt-spinning a polyethylene naphthalate is subjected to stretching, characterized in that prestretch satisfying such conditions as the fiber temperature of from 80° C. to 120° C. and from 0.05 to 0.3 N/dtex is performed, a first stretch satisfying such conditions as the fiber temperature of from 130° C. to 180° C. and stretch tensile force of not more than the prestretch tensile force is performed, the total stretch magnification including subsequent stretches is set to 5 or more, and finally heat-treatment under tension with a stretch ratio of from 0 to 2% is performed.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: October 4, 2011
    Assignee: Teijin Fibers Limted
    Inventors: Hisao Okumura, Fuyuki Terasaka
  • Publication number: 20110225945
    Abstract: A new metal fiber yarn (1) and methods for obtaining such a yarn are provided. The metal fiber yarn comprises at least 9 bundles (8) of continuous metal fibers. Each of the bundles comprises at least 30 metal fibers (7). The at least 9 bundles are arranged in at least 2 layers of continuous metal fiber bundles as seen over a transverse cross section through the metal fiber yarn. This new metal fiber yarn has an increased flexlife and strength.
    Type: Application
    Filed: November 24, 2009
    Publication date: September 22, 2011
    Inventors: Lisa Le Percq, Stefaan De Bondt, Henk Troost
  • Publication number: 20110225946
    Abstract: A new metal fiber yarn is provided. The metal fiber yarn (10) constitutes a construction comprising continuous metal fibers (13) forming a metal fiber yarn. The construction comprises at least 5 bundles (12) of continuous metal fibers twisted together to form a yarn. Each of the metal fiber bundles (12) comprises at least 30 metal fibers (13). The yarn comprises at least one partial yarn (11), said partial yarn comprising at least two metal fiber bundles (13) twisted around each other with a predetermined number of torsions per meter.
    Type: Application
    Filed: November 24, 2009
    Publication date: September 22, 2011
    Inventors: Lisa Le Percq, Stefaan De Bondt, Henk Troost
  • Publication number: 20110114619
    Abstract: A yarn (100) suitable for a car seat heating system comprising one or more bundles (110,120,130), each bundle comprising at least ten metal fibres (140) is described. The twisted yarn further comprises a solvent-based lubricant, said lubricant comprising a polymer binder and solid particles. It has been found that the application of such particular lubricant to the yarn provides for an improved flexlife of the yarn.
    Type: Application
    Filed: July 6, 2009
    Publication date: May 19, 2011
    Inventors: Xavier Amils, Johan Vanbrabant
  • Publication number: 20110078995
    Abstract: A yarn manufacturing method is provided. The method includes providing a plurality of raw fibers, modifying at least one of the raw fibers to form at least one modified fiber, and spinning the raw fibers and the at least one modified fiber into a mixed yarn. A mixed yarn spun from the raw fibers and the modified fiber is also provided, wherein the modified fiber is modified from the raw fiber.
    Type: Application
    Filed: December 24, 2009
    Publication date: April 7, 2011
    Applicant: RUENTEX INDUSTRIES LIMITED
    Inventors: Chih-Chang Hsu, Chen-Chi Lee
  • Patent number: 7850741
    Abstract: The present invention provides a cleansing polyester fabric, which comprises (i) a polyester multifilament consisting of ultra yarns (monofilament) of 0.001 to 0.1 deniers or its false twist yarn as warp and (ii) a false twisted mixing yarn consisting of said polyester multifilament and a high shrinkage polyester multifilament with 10-50% of shrinkage rate in boiling water as a weft, and said fabric satisfies the following properties; sum of warp density and weft density: 220-320 yarns/inch, thickness of the fabric: less than 0.3 mm, and weight of the fabric: 70-180 g/m2. The cleansing fabric of the present invention is useful as a makeup cleansing fabric or as wiping fabric for fine products and optical devices since it exhibits excellent cleansing performance, is soft to the touch and does not damage the surface of products to be cleaned.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: December 14, 2010
    Assignee: Kolon Industries, Inc.
    Inventors: Yang-Soo Park, Heung-Ryul Oh, Dong-Eun Lee
  • Publication number: 20100269478
    Abstract: A method for spinning a multifilament yarn from a thermoplastic material, where the filament bundle is cooled below the spinneret in a first cooling zone, first of all by means of at least one transverse blowing operation with a gaseous cooling medium and by means of an extraction means for the gaseous cooling medium which lies opposite said transverse blowing means, and subsequently the filament bundle is cooled further in a second cooling zone below the first cooling zone by automatic suction of gaseous cooling medium which is situated in the vicinity of the filament bundle.
    Type: Application
    Filed: July 8, 2010
    Publication date: October 28, 2010
    Applicant: DIOLEN INDUSTRIAL FIBERS B.V.
    Inventors: Bastiaan Krins, Johannes Frederik Boer