Fibers Or Filaments Nonconcentric (e.g., Side-by-side Or Eccentric, Etc.) Patents (Class 428/374)
  • Patent number: 10161064
    Abstract: There is provided a fiber for a wetlaid non-woven fabric, said fiber can be the basis ingredient of a paper that maintains uniform mass per unit area and fiber dispersion and has unprecedented bulkiness. The fiber for a wetlaid non-woven fabric has 30 to 100 wt % of apparently crimping fibers with a fiber diameter of from 3 to 40 ?m and 0 to 70 wt % of latently crimping fibers with a fiber diameter of from 3 to 40 ?m.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: December 25, 2018
    Assignees: ES FiberVisions Co., Ltd., ES FiberVisions Hong Kong Limited, ES FiberVisions LP, ES FiberVisions ApS
    Inventors: Takayuki Nishitani, Masuo Iwata
  • Patent number: 10077518
    Abstract: A crimped conjugated fiber having a cross-sectional configuration wherein: a cross section of the fiber comprises at least a portion (a) comprising a propylene polymer (A) and a portion (b) comprising a propylene polymer (B), the mass ratio of the portion (a) and the portion (b) is in the range of 10:90 to 55:45, the propylene polymer (A) has Mz/Mw (A) and the propylene polymer (B) has Mz/Mw (B) wherein the difference thereof is in the range of 0.30 to 2.2, the absolute value difference of the melting points of the propylene polymer (A) and the propylene polymer (B) is in the range of 0 to 10° C., and the ratio of MFR (A) of the propylene polymer (A) to MFR (B) of the propylene polymer (B) is in the range of 0.8 to 1.2. A nonwoven fabric of crimped conjugated fiber is also provided.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: September 18, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hisashi Morimoto, Kazuhiko Masuda
  • Patent number: 9873239
    Abstract: A process for the production of a polymeric article directed to (a) forming a ply having successive layers, namely, (i) a first layer made up of strands of an oriented polymer material; (ii) a second layer of a polymeric material; (iii) a third layer made up of strands of an oriented polymeric material, wherein the second layer has a lower peak melting temperature that of the first and third layers; (b) subjecting the ply to conditions of time, temperature, and pressure sufficient to melt a proportion of the firsts layer to melt the second layer entirely, and to melt a proportion of the third layer, and to compact the ply; and (c) cooling the compacted ply. The resultant articles have good mechanical properties yet may be made at a lower compaction temperature than articles not employing the second layer, leading to a more controllable manufacturing process.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: January 23, 2018
    Assignee: Propex Operating Company, LLC
    Inventors: Ian MacMillan Ward, Peter John Hine, Keith Norris
  • Patent number: 9863067
    Abstract: The present invention provides a crimped conjugated fiber having a crimpable cross-sectional configuration wherein a cross section of the fiber comprises at least two portions: a portion (a) and a portion (b); the portion (a) comprises a propylene polymer (A) and the portion (b) comprises a propylene/?-olefin random copolymer (B); the propylene polymer (A) has Mz/Mw(A) and the propylene/?-olefin random copolymer (B) has Mz/Mw(B) wherein the difference thereof is in the range of 0.10 to 2.2; and the propylene polymer (A) has a melting point [Tm(A)] and the propylene/?-olefin random copolymer (B) has a melting point [Tm(B)] wherein the difference thereof exceeds 10° C. The present invention also provides a non-woven fabric comprising the crimped conjugated fiber.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: January 9, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventor: Hisashi Morimoto
  • Patent number: 9393343
    Abstract: The present invention relates to a monofilament suture and a preparation method thereof, more specifically, to a novel monofilament suture wherein two polymers having identical inherent properties are spun to have a cross-sectional structure of conjugated filaments, and said cross-section has interfaces between the spun polymers. The interfaces form a discontinuous cross-section along the radial direction and are distributed continuously along the fiber axis direction, thereby offering improved knot security and applicability to a variety of medical materials, and a preparation method thereof.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: July 19, 2016
    Assignee: SAMYANG BIOPHARMACEUTICALS CORPORATION
    Inventors: Jung-Nam Im, Jeong-Kyung Kim, Tae-Hun Kim
  • Patent number: 9309405
    Abstract: Example embodiments are directed to a nanofiber-nanowire composite includes a polymer nanofiber; and a plurality of nanowires of a metal oxide extending from inside to outside of the polymer nanofiber and covering the polymer nanofiber. According to example embodiments, a method of fabricating a nanofiber-nanowire composite includes forming a nanofiber including a metal seed; and growing nanowires of a metal oxide from the metal seed to the outside of the nanofiber.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: April 12, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-jin Park, Seung-nam Cha, Jae-hyun Hur
  • Patent number: 9005738
    Abstract: The current invention involves a dispersible, nonwoven multistrata wipe material that is stable in a wetting liquid and flushable in use. More particularly, the current invention involves multilayered structures including, but not limited to, two, three, or four layers to form the dispersible nonwoven wipe material. The layers contain combinations of cellulosic and noncellulosic fibers, and optionally a binder or additive.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: April 14, 2015
    Assignee: Buckeye Technologies Inc.
    Inventors: John Perry Baker, Maria Curran, Jeffrey Scott Hurley, Ronald Timothy Moose, Jacek K. Dutkiewicz, Manuel Vidal Murcia, Thomas Heβ
  • Patent number: 8956986
    Abstract: A binding fiber having, as at least one first thermoplastic component, a copolyamide which has a relative viscosity of at least 1.50 (measured at 0.5% in m-cresol at 25° C.), a MVR of maximum 20 cm3/10 min at 190° C. and 2.16 kg load, a hydrophobicity of less than 7.2, a melting temperature lower than 105° C. in the water saturated condition and a higher melting temperature in the dry condition. The binding fiber can, on the one hand, be activated with hot steam at approximately ambient pressure during the manufacture of flat materials containing natural fibers, such as paper, cardboard, wood fiber boards, or fiber mats. The finished flat material can, on the other hand, be subjected to higher temperatures, and the copolyamide develops good bonding with respect to the cellulose fibers normally used in the indicated flat materials.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: February 17, 2015
    Assignee: EMS-Patent AG
    Inventors: Klaus Bender, Gunther Schäch, Eberhard Kinkelin
  • Publication number: 20140374106
    Abstract: In general, the current disclosure relates to multicomponent fibers that have accelerated degradation in water in low temperature conditions, and their various industrial, medical and consumer product uses. Such materials are especially useful for uses in subterranean wells in oil and gas production. In some embodiments, the compositions of materials have accelerated degradation even at Ultra Low Temperature (“ULT”) (?60° C.) in subterranean formations.
    Type: Application
    Filed: December 21, 2012
    Publication date: December 25, 2014
    Inventors: S. Sherry Zhu, Huilin Tu, Vadim Kamil'evich Khlestkin, Miranda Amarante
  • Publication number: 20140377555
    Abstract: A water-disintegrable composite fiber comprising: a phase containing a polyglycolic acid resin; and a phase containing another resin having a mass loss of 25% or greater after immersion for 7 days in 80° C. pure water and having a glass transition temperature Tg of 25° C. or higher; the two phases extending continuously in the lengthwise direction; and the fiber having a side surface in which a region formed from the phase containing the polyglycolic acid resin is 50% or less in terms of area ratio, and a cross section in which a region formed from the phase containing the polyglycolic acid resin is 50% or greater in terms of area ratio.
    Type: Application
    Filed: February 21, 2013
    Publication date: December 25, 2014
    Applicant: Kureha Corporation
    Inventor: Kotaku Saigusa
  • Patent number: 8889573
    Abstract: The present invention relates to a fiber assembly obtained by electrifying a resin in a melted state by application of voltage between a supply-side electrode and a collection-side electrode so as to extend the resin into an ultrafine composite fiber by electrospinning, and accumulating the ultrafine composite fiber, wherein the ultrafine composite fiber includes at least two polymeric components and the ultrafine composite fiber includes at least one type of composite fiber selected from a sea-island structure composite fiber and a core-sheath structure composite fiber as viewed in fiber cross section, at least one selected from an island component and a core component has a volume specific resistance of 1015?·cm or less, and at least one selected from a sea component and a sheath component has a volume specific resistance exceeding 1015?·cm.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: November 18, 2014
    Assignees: Daiwabo Holdings Co., Ltd., Daiwabo Polytec Co., Ltd.
    Inventor: Toshio Kamisasa
  • Patent number: 8883305
    Abstract: The present invention relates to thermoset resin fiber components, composite materials including thermoset resin fiber components, composite articles manufactured using such composite materials and methodologies for manufacturing same. The thermoset resin fiber components may include a single fiber of thermoset resin or a plurality of fibers commingled together. The properties and characteristics of the thermoset resin used are chosen according to the material to be produced therefrom. The thermoset fiber components may be woven into reinforcement fibers to form prepregs. Thermoplastic fibers may be commingled and co-woven with the thermoset fiber components.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: November 11, 2014
    Assignee: Umeco Structual Materials (Derby) Limited
    Inventors: Mark Raymond Steele, Andrew Gibbs, Amy Grace Atkinson
  • Patent number: 8846199
    Abstract: Organic-inorganic hybrid fibers and methods for the preparation of such fibers are disclosed.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: September 30, 2014
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Stuart D. Hellring, Kaliappa G. Ragunathan, Kenneth J. Balog, Hong Li, Robert A. Montague
  • Publication number: 20140248491
    Abstract: An extruded component formed from an extruded material having antimicrobial components is disclosed. The extruded material may be formed from polymers and formed into a generally elongated shape. The antibacterial components may be included within at least a portion of the material forming the extruded component. The extruded component may be a filament and may include silver glass particles. In some embodiments, the extruded component may be a single component system, a bi-component system, or a tri-component system.
    Type: Application
    Filed: May 15, 2014
    Publication date: September 4, 2014
    Applicant: Noble Fiber Technologies, LLC
    Inventor: Vinesh Naik
  • Patent number: 8758874
    Abstract: A laminated base material includes a lamination and integration of prepreg base materials each of which includes many reinforcing fibers arranged substantially in one direction and a matrix resin adhered to the reinforcing fibers, wherein at least one of the laminated prepreg base materials is formed with a prepreg base material having, throughout its whole surface, many incisions each extending in a direction crossing the reinforcing fibers, substantially all of the reinforcing fibers divided by incisions, and wherein a length L of each of reinforcing fiber segments formed by the incisions is 10 to 100 mm, a thickness H of the prepreg base material is 30 to 300 ?m, and a fiber volume content Vf of the reinforcing fibers is 45 to 65% and arranging directions of the reinforcing fibers between one and another laminated prepreg base materials have at least two directions different each other.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: June 24, 2014
    Assignee: Toray Industries, Inc.
    Inventors: Ichiro Taketa, Narumichi Sato, Eisuke Wadahara
  • Publication number: 20140170415
    Abstract: A multicomponent fiber that contains two or more components arranged in distinct zones across the cross-section of the multicomponent fiber is provided. The components are arranged in a sheath/core configuration in which the core component is substantially surrounded by the sheath component. One of the sheath and the core is formed from a polyarylene sulfide composition and the other of the sheath and the core is formed from a thermoplastic composition that contains a thermoplastic polymer other than a polyarylene sulfide. Further, the polyarylene sulfide is “functionalized” in that it contains at least one functional group in its molecular structure (e.g., at its molecular terminal end). Without intending to be limited by theory, it is believed that such functional groups can improve the adhesion between the core and sheath components, thereby resulting in a fiber having improved thermal and mechanical properties.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 19, 2014
    Applicant: Ticona LLC
    Inventor: Arvind Karandikar
  • 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: 8722552
    Abstract: This woven/knit fabric contains composite yarn comprising a multifilament yarn A2 and a multifilament yarn B2, which satisfies the following conditions (1) to (3): (1) the ratio (WA2/DA2) of the yarn length of the multifilament fiber A2 during absorption of moisture and humidity (WA2) to the yarn length of the multifilament yarn A2 under conditions of 20° C. and 65% humidity (DA2) is 1.02 to 1.30; (2) the ratio (WA2/DB2) of the yarn length of the multifilament yarn A2 during absorption of moisture and humidity (WA2) to the yarn length of the multifilament yarn B2 under conditions of 20° C. and 65% humidity (DB2) is 0.9 to 1.1; and (3) the drying shrinkage stress (DS value) of the multifilament yarn A2 is 0.08 cN/dtex or more.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: May 13, 2014
    Assignees: Mitsubishi Rayon Co., Ltd., Mitsubishi Rayon Textile Co., Ltd.
    Inventor: Shoji Kanatani
  • Publication number: 20140120336
    Abstract: The fiber cross-section of an island-in-a-sea composite fiber perpendicular to the fiber axis, the island component and sea component are arranged such that the sea component surrounds the island components. The composite cross-section is very consistent, and the fiber has excellent post-processibility. The island-in-a-sea composite fiber wherein diameter of the island component is 10 to 1000 nm, variation of the island component diameter is 1.0 to 20.0%, modification ratio is 1.00 to 1.10, and variation of the modification ratio is 1.0 to 10.0%.
    Type: Application
    Filed: June 12, 2012
    Publication date: May 1, 2014
    Applicant: Toray Industries, Inc.
    Inventors: Masato Masuda, Joji Funakoshi, Akira Kishiro
  • Publication number: 20140106166
    Abstract: A composite rod for use in various applications, such as electrical cables (e.g., high voltage transmission cables), power umbilicals, tethers, ropes, and a wide variety of other structural members, is provided. The rod includes a core that is formed from a plurality of unidirectionally aligned fiber rovings embedded within a thermoplastic polymer matrix. The present inventors have discovered that the degree to which the rovings are impregnated with the thermoplastic polymer matrix can be significantly improved through selective control over the impregnation process, and also through control over the degree of compression imparted to the rovings during formation and shaping of the rod, as well as the calibration of the final rod geometry. Such a well impregnated rod has a very small void fraction, which leads to excellent strength properties. Notably, the desired strength properties may be achieved without the need for different fiber types in the rod.
    Type: Application
    Filed: April 11, 2012
    Publication date: April 17, 2014
    Applicant: Ticona LLC
    Inventors: Sherri M. Nelson, David W. Eastep, Timothy L. Tibor, Timothy A. Regan, Michael L. Wesley
  • Publication number: 20140106167
    Abstract: A method of spinning a polyacrylonitrile PAN-based precursor fiber comprises extruding a spinning solution of ultra-high molecular weight polyacrylonitrile polymer through a multi-filament spinnerette where the solution has a viscosity of between about 100 and about 300 Pa-sec (at a shear rate of 1 l/sec) at a dope extrusion temperature of between about 20° C. and about 26° C., producing a fiber having a diameter of between about 4 and about 10 micron, a tensile strength of between about 500 and about 1100 MPa, and an elastic modulus between about 13 and about 18 GPa.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 17, 2014
    Applicant: THE UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION
    Inventor: The University of Kentucky Research Foundation
  • Patent number: 8684255
    Abstract: A method of manufacturing an elongate insert configured to be integrated by CIC in a metal container, including coated yarns bonded together, the coated yarns being formed from metal-coated ceramic fibers. The method includes placing the coated yarns side by side in a bundle and pulling the fiber bundle through a shaping element so as to compact the fiber bundle transversely while forming the fiber bundle so as to have a defined cross section. A metal part incorporating a fibrous insert can be manufactured by the CIC technique.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: April 1, 2014
    Assignees: SNECMA, Messier-Bugatti-Dowty
    Inventors: Jean-Michel Patrick Maurice Franchet, Gilles Charles Casimir Klein, Richard Masson, Louis Salvat
  • Patent number: 8679627
    Abstract: Multi-component fibers having enhanced reversible thermal properties and methods of manufacturing thereof are described. In one embodiment, a multi-component fiber includes a fiber body formed from a set of elongated members, and at least one of the set of elongated members includes a temperature regulating material having a latent heat of at least 40 J/g. The temperature regulating material provides thermal regulation based on at least one of absorption and release of the latent heat at the transition temperature. The multi-component fiber can be formed via a melt spinning process or a solution spinning process and can be used or incorporated in various products where a thermal regulating property is desired. For example, the multi-component fiber can be used in textiles, apparel, footwear, medical products, containers and packagings, buildings, appliances, and other products.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: March 25, 2014
    Assignee: Outlast Technologies LLC
    Inventors: Mark Hartmann, Jeffrey S. Haggard, Monte Christopher Magill, James E. Brang
  • Patent number: 8663799
    Abstract: The present invention relates to fibers and nonwovens made from plasticized polyolefin compositions comprising a polyolefin, a non-functionalized hydrocarbon plasticizer and a slip agent.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: March 4, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Chon Yie Lin, Bryan Robert Chapman, Chia Yung Cheng, William Michael Ferry, Michael Brian Kelly, Bruce Robert Lundmark, Wen Li
  • Publication number: 20130302604
    Abstract: A composite prepreg yarn designed and constructed is a very large, strong yarn with resin infused throughout, which can be used to prepare composite preforms via conventional Maypole braiding or other textile processes. The invention increases the loads that can be transmitted by the cured yarn in a composite structure, decreases the stickiness that can prevent their use in braiding and other textile processes, provides protection to the high-strength fibers from abrasion that is encountered during and after composite preform manufacturing via braiding.
    Type: Application
    Filed: April 16, 2013
    Publication date: November 14, 2013
    Inventors: David J. BRANSCOMB, Roy M. BROUGHTON, JR., David G. BEALE
  • Publication number: 20130288839
    Abstract: A process for the production of a yarn is disclosed, the process comprising providing a bundle comprising continuous filaments of a thermoplastic polymer, contacting the bundle with a sliver comprising fibres of a heat resistant material to form a mixed bundle, and applying a gas jet to the mixed bundle to distribute the fibres of the heat resistant material in the bundle. Also disclosed are yarns comprising filaments of a thermoplastic polymer and fibres of a heat resistant material, wherein the fibres are distributed between and among the filaments. Preferably, the heat resistant material is a non-thermoplastic polymer, especially an aramid. Yarns according to the invention find use in technical fabrics especially transmission belts.
    Type: Application
    Filed: June 27, 2013
    Publication date: October 31, 2013
    Applicant: Heathcoat Fabrics Limited
    Inventor: Richard Crane
  • Patent number: 8563449
    Abstract: A non-woven material and method of formation thereof is provided to form a substantially flat or planar self supporting core of an inorganic base fiber and an organic binding fiber preferably using an air-laid forming head. In certain preferred embodiments, the organic base fiber has a fiber strength with a break load of about 10 grams or less and an elongation of about 20 percent or less. Preferably, the organic binding fiber has a binding component and a structural component within unitary fiber filaments. In one aspect, the structural component of the organic binding fiber has a composition effective to provide a strength thereof so that the non-woven material can be manually cut with minimal effort. In such form, the non-woven material is suitable to function as an acoustic ceiling tile.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: October 22, 2013
    Assignee: USG Interiors, LLC
    Inventors: Donald Mueller, Weixin Song, Bangji Cao
  • Publication number: 20130273365
    Abstract: A viscose fiber comprises a fiber body including a regenerated cellulosic material and a plurality of microcapsules dispersed in the regenerated cellulosic material. The regenerated cellulosic material is derived from an organic plant material and the plurality of microcapsules containing a phase change material has 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 latent heat at the transition temperature.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 17, 2013
    Inventors: Mark H. Hartmann, James B. Worley, Matthew North
  • Patent number: 8513146
    Abstract: The invention provides a polyester bicomponent staple fiber comprising poly(trimethylene terephthalate) and at least one polymer selected from the group consisting of poly(ethylene terephthalate), poly(trimethylene terephthalate), and poly(tetramethylene terephthalate) or a combination of such members, said bicomponent staple fiber having: a) a scalloped oval cross-section shape having an aspect ratio a:b of about 2:1 to about 5:1 wherein ‘a’ is a fiber cross-section major axis length and ‘b’ is a fiber cross-section minor axis length; b) a polymer interface substantially perpendicular to the major axis; c) a cross-section configuration selected from the group consisting of side-by-side and eccentric sheath-core; d) a plurality of longitudinal grooves; and e) a groove ratio of about 1.05:1 to about 1.9:1. Additionally, the invention provides a spun yarn comprising cotton and the polyester bicomponent staple fiber of the invention, as well as fabrics and garments comprising the spun yarn of the invention.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: August 20, 2013
    Assignee: Invista North America S.ár.l.
    Inventors: Geoffrey David Hietpas, David A. Price, Sr., Steven Wayne Smith
  • Publication number: 20130211430
    Abstract: The invention relates to a resorbable multifilament comprising a number of individual resorbable filaments of a first type having a first degradation time and a number of individual resorbable filaments of a second type having a second degradation time, wherein the filaments of the first type and the filaments of the second type are arranged in close relationship to form a composite multifilament having a length and a specific composite cross-section comprising cross-sections of the individual filaments of the first type and second type, wherein the cross-sections of the individual filaments of the first and second type are located at determined relative positions, wherein the relative positions amongst the individual cross-sections of the filaments of the first and second types are invariant over the length of the composite multifilament.
    Type: Application
    Filed: February 10, 2012
    Publication date: August 15, 2013
    Inventor: Per Egnelöv
  • Patent number: 8501317
    Abstract: Cloth, in which air permeability is variable by energization, includes: a fibrous object composed of composite fibers, each of the composite fibers including: an electrical-conductive polymeric material; and a material different from the electrical-conductive polymeric material, the different material being directly stacked on the electrical-conductive polymeric material; and electrodes which are attached to the fibrous object, and energize the electrical-conductive polymeric material. Each of the composite fibers has a structure in which the material different from the electrical-conductive polymeric material is stacked on at least a part of a surface of the electrical-conductive polymeric material, or a structure in which either one of the electrical-conductive polymeric material and the material different from the electrical-conductive polymeric material penetrates the other material in a longitudinal direction.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: August 6, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Hiroaki Miura
  • Publication number: 20130149532
    Abstract: Provided are fiber fabrication method and the fiber fabricated thereby. In this method, different monomer solutions are electrospun through nozzles whose outlets are stuck to each other and simultaneously interfacially polymerized to form a polymer fiber without a complicated process of preparing a polymer solution. Therefore, a polymer fiber can be simply prepared.
    Type: Application
    Filed: August 22, 2012
    Publication date: June 13, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju Yun, Zin Sig Kim, Han Young Yu, Yark Yeon Kim, Won Ick Jang
  • Publication number: 20130134088
    Abstract: The present invention relates to a new bicomponent fiber, a nonwoven fabric comprising said new bicomponent fiber and sanitary articles made therefrom. The bicomponent fiber contains a polyethylene-based resin forming at least part of the surface of the fiber longitudinally continuously and is characterized by a Co-monomer Distribution Constant greater than about 45, a recrystallization temperature between 85° C. and 110° C., a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa.sec or less. The nonwoven fabric comprising the new bicomponent fiber according to the instant invention are not only excellent in softness, but also high in strength, and can be produced in commercial volumes at lower costs due to higher thoughputs and requiring less energy.
    Type: Application
    Filed: January 29, 2013
    Publication date: May 30, 2013
    Applicant: Trevira GmbH
    Inventor: Trevira GmbH
  • Publication number: 20130122770
    Abstract: A system may include a plurality of tow band processing lines and a master air jet in communication with the tow band processing lines to receive a plurality of processed tow bands from the tow band processing lines to form a bulked web. The system may be used to form a bulked web that itself is a nonwoven material or that may be further processed into a nonwoven material.
    Type: Application
    Filed: November 16, 2011
    Publication date: May 16, 2013
    Inventors: Sanjay Wahal, Edward J. Clark, Ray Robertson, Jeffrey Scott Conley
  • Patent number: 8420556
    Abstract: The subject matter disclosed herein relates generally to fabrics composed of micro-denier fibers wherein said fibers are formed as bicomponent fibrillated fiber. The energy is sufficient for fibrillating as well as entangling (bonding) the fibers. These fabrics can be woven or knitted and made from made from bicomponent islands in the sea fibers and filaments or can be nonwovens and formed by either spunbonding or through the use of bicomponent staple fibers formed into a web by any one of several means and bonded similarly to those used for the spunbonded filament webs.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: April 16, 2013
    Assignee: North Carolina State University
    Inventors: Behnam Pourdeyhimi, Nataliya V. Fedorova, Stephen R. Sharp
  • Patent number: 8415263
    Abstract: A composite material as a sheet material is described, being relatively cheap, most useful as a raw material of a sanitary product or the like, such as underwear, dust-proof mask or dispensable paper diaper, etc., and good in processability, stretchability, gas-permeability, softness, and touch. The composite material is formed by laminating a stretchable layer and a conjugate spunbonded nonwoven fabric including conjugate fibers including a low-melting-point component and a high-melting-point component. The conjugate fibers are partially bonded to each other by thermocompression, wherein each bonded portion has fine folded structures including alternate hill and valley regions in the CD, and the distance between neighboring hills is 100-400 ?m in average. The conjugate spunbonded nonwoven fabric exhibits stretchability through the spread of the fine folded structures, and has, at 5% elongation, a CD-strength of 0.1 N/5 cm or less and an MD/CD strength ratio of 200 or more.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: April 9, 2013
    Assignees: JNC Corporation, JNC Fibers Corporation
    Inventors: Toshikatsu Fujiwara, Taiju Terakawa
  • Patent number: 8410006
    Abstract: The present invention is directed to a high surface area fibers and an improved filter composite media made from the same. More specifically, the composite media preferably comprises a winged-fiber layer having high surface area fibers for increased absorption and strength and a meltblown layer for additional filtration. In one preferred embodiment the high surface area fibers have a middle region with a plurality of projections that define a plurality of channels, which increases the surface area of the fiber. In one preferred embodiment, the high surface area fiber has a specific surface area of about 140,000 cm2/g or higher and a denier of about 1.0 to about 2.0. The high surface area fiber of the present invention is made using a bicomponent extrusion process using a thermoplastic polymer and a dissolvable sheath.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: April 2, 2013
    Inventors: Walter Chappas, Behnam Pourdeyhimi
  • Patent number: 8398950
    Abstract: The present disclosure describes carbon nanotube materials and condensation polymers having at least one bridge between carbon nanotubes. Carbon nanotube materials comprise a plurality of functionalized single-wall carbon nanotubes linked to at least one other single-wall carbon nanotube by at least one bridge. The at least one bridge comprises at least one amine functionality bonded to the functionalized single-wall carbon nanotubes. The amine functionality may be alkyl or aryl. Carbon nanotube condensation polymers having at least one bridge between single-wall carbon nanotubes are also disclosed. The bridges in the condensation polymers comprise an amine functionality and a condensation agent.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: March 19, 2013
    Assignee: William Marsh Rice University
    Inventor: Valery N. Khabashesku
  • Patent number: 8389426
    Abstract: The present invention relates to a new bicomponent fiber, a nonwoven fabric comprising said new bicomponent fiber and sanitary articles made therefrom. The bicomponent fiber contains a polyethylene-based resin forming at least part of the surface of the fiber longitudinally continuously and is characterized by a Co-monomer Distribution Constant greater than about 45, a recrystallization temperature between 85° C. and 110° C., a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa.sec or less. The nonwoven fabric comprising the new bicomponent fiber according to the instant invention are not only excellent in softness, but also high in strength, and can be produced in commercial volumes at lower costs due to higher thoughputs and requiring less energy.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: March 5, 2013
    Assignee: Trevira GmbH
    Inventors: Jörg Dahringer, Bernd Blech, Werner Stefani, Werner Grasser, Mehmet Demirors, Gert Claasen
  • Publication number: 20130017451
    Abstract: A polyolefin-based split-type conjugate fiber according to the present invention is a polyolefin-based split-type conjugate fiber obtained by composite spinning including a first component containing a polypropylene-based resin and a second component containing a polyolefin-based resin, wherein the first component contains, as a primary component, a polypropylene resin having a Q value (the ratio between the weight average molecular weight Mw and the number average molecular weight Mn) of 6 or greater and a melt flow rate according to JIS K 7210 (MFR at a measurement temperature of 230° C. under a load of 2.16 kgf (21.18 N)) of 5 g/10 min or greater and less than 23 g/10 min, and the first component and the second component are adjacent to each other in a cross section of the polyolefin-based split-type conjugate fiber.
    Type: Application
    Filed: March 30, 2011
    Publication date: January 17, 2013
    Applicants: DAIWABO POLYTEC CO., LTD., DAIWABO HOLDINGS CO., LTD.
    Inventor: Tatsunori Kida
  • Patent number: 8354156
    Abstract: A prepreg base material includes reinforcing fibers arranged substantially in one direction and a matrix resin between the reinforcing fibers, wherein the prepreg base material has substantially throughout its entire surface incisions, each incision extending in a direction substantially crossing the reinforcing fibers, wherein substantially all of the reinforcing fibers are divided by the incisions, a length (L) of each of reinforcing fiber segments formed by the incisions is in the range of 10 to 100 mm, a thickness H of the prepreg base material is in the range of 30 to 300 ?m, and a fiber volume content by Vf of the reinforcing fibers is in the range of 45 to 65%.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: January 15, 2013
    Assignee: Toray Industries, Inc.
    Inventors: Ichiro Taketa, Narumichi Sato, Eisuke Wadahara
  • Publication number: 20130008582
    Abstract: A method of manufacturing an elongate insert configured to be integrated by CIC in a metal container, including coated yarns bonded together, the coated yarns being formed from metal-coated ceramic fibers. The method includes placing the coated yarns side by side in a bundle and pulling the fiber bundle through a shaping element so as to compact the fiber bundle transversely while forming the fiber bundle so as to have a defined cross section. A metal part incorporating a fibrous insert can be manufactured by the CIC technique.
    Type: Application
    Filed: March 30, 2011
    Publication date: January 10, 2013
    Applicants: MESSIER-BUGATTI-DOWTY, SNECMA
    Inventors: Jean-Michel Patrick Maurice Franchet, Gilles Charles Casimir Klein, Richard Masson, Louis Salvat
  • Publication number: 20120288703
    Abstract: A sea-island composite fiber has an island component which is ultrafine fibers having a noncircular cross-section, the ultrafine fibers being uniform in the degree of non-circularity and in the diameter of the circumscribed circle. The sea-island composite fiber includes an easily soluble polymer as the sea component and a sparingly soluble polymer as the island component, and the island component has a circumscribed-circle diameter of 10-1,000 nm, a dispersion in circumscribed-circle diameter of 1-20%, a degree of non-circularity of 1.2-5.0, and a dispersion in the degree of non-circularity of 1-10%.
    Type: Application
    Filed: January 26, 2011
    Publication date: November 15, 2012
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Masato Masuda, Akira Kishiro, Joji Funakoshi, Yoshitsugu Funatsu, Seiji Mizukami
  • Patent number: 8293364
    Abstract: A highly shrinkable fiber composed of nylon-MXD6 polymer and nylon-6 polymer, characterized in that a weight ratio therebetween is in the range of 35:65 to 70:30, and that each thereof exhibits a breaking strength of 4.00 cN/dtex or greater. Preferably, the weight ratio between nylon-MXD6 polymer and nylon-6 polymer of the highly shrinkable fiber is in the range of 45.55 to 55:45. The highly shrinkable fiber exhibits a high shrinkage ratio in boiling water, so that when the highly shrinkable fiber is used in a woven fabric, there can be realized a high density.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: October 23, 2012
    Assignee: KB Seiren, Ltd.
    Inventors: Hayato Iwamoto, Yoshitomo Hara, Hideo Ueda, Masaharu Saito
  • Patent number: 8288116
    Abstract: 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 dipetidyl peptidase IV (DPPIV)] expressed on the surface of metastasizing cancer cells.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: October 16, 2012
    Assignee: The Research Foundation of State University of New York
    Inventor: Wen-Tien Chen
  • Publication number: 20120249275
    Abstract: A power transformer is provided that includes a first transformer component, a second transformer component, and a composite structure positioned between the first transformer component and the second transformer component. The composite structure includes a first composite fiber having at least one base fiber, a sheath of binder material, and nanoclay particles, and a second composite fiber, having at least one base fiber, bound to the first composite fiber by at least a portion of the sheath.
    Type: Application
    Filed: September 25, 2011
    Publication date: October 4, 2012
    Applicant: Waukesha Electric Systems, Inc.
    Inventors: Thomas M. Golner, Shirish P. Mehta, Padma P. Varanasi
  • Publication number: 20120238173
    Abstract: The present invention discloses environmentally degradable multicomponent fibers. The configuration of the multicomponent fibers may be side-by-side, sheath-core, segmented pie, islands-in-the-sea, or any combination of configurations. Each component of the fiber will comprise destructurized starch and/or a biodegradable thermoplastic polymer. The present invention is also directed to nonwoven webs and disposable articles comprising the environmentally degradable multicomponent fibers. The nonwoven webs may also contain other synthetic or natural fibers blended with the multicomponent fibers of the present invention.
    Type: Application
    Filed: June 4, 2012
    Publication date: September 20, 2012
    Inventors: Eric Bryan Bond, Jean-Philippe Marie Autran, Larry Neil MacKey, Isao Noda, Hugh Joseph O'Donnell
  • Patent number: 8268444
    Abstract: The present invention is directed to a crimping conjugate fiber, comprising a first component and a second component, wherein the first component comprises a polybutene-1; the second component comprises a polymer having a melting point higher than that of the polybutene-1 by at least 20° C., or a polymer having a melting initiation temperature (extrapolated melting initiation temperature measured using differential scanning calorimetry (DSC) as defined in JIS-K-7121) of at least 120° C.; in a cross section of the fiber, the first component occupies at least 20% of the surface of the conjugate fiber, and the centroid position of the second component is shifted from the centroid position of the conjugate fiber; and the conjugate fiber is an actualized crimping conjugate fiber in which three-dimensional crimps have been developed or a latently crimpable conjugate fiber in which three-dimensional crimps are developed by heating.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: September 18, 2012
    Assignees: Daiwabo Holdings Co., Ltd., Daiwabo Polytec Co., Ltd.
    Inventor: Hiroshi Okaya
  • Patent number: 8241748
    Abstract: Opaque color shifting strands are disclosed that have an optically variable color with a change in angle of incident light. The strands have an organic substrate and an optical interference structure on one or both sides of the organic substrate. The optical interference design can be a Fabry-Perot structure or can be optically variable ink. Plural strands can be combined to form a textile for example such as a garment label.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: August 14, 2012
    Inventor: Alberto Argoitia
  • Publication number: 20120184168
    Abstract: The present invention provides a thermal bonding conjugate fiber with excellent compression resistance and nonwoven fabric using the same. More specifically, the present invention provides a thermal bonding conjugate fiber and nonwoven fabric using the same, in which the bulkiness of the nonwoven fabric under a light load is retained well even under a heavy load, and the rate of decrease in bulkiness between under a light load and under a heavy load can be reduced. The thermal bonding conjugate fiber with thermal shrinkage properties has an eccentric core-sheath structure in which a first component comprising a polyester resin constitutes a core and a second component comprising a polyolefin resin having a melting point at least 15° C. lower than a melting point of the polyester resin constitutes a sheath, and a shrinkage ratio after a heat treatment of 120° C. is at least 20% when calculated by a predetermined measurement method.
    Type: Application
    Filed: August 27, 2010
    Publication date: July 19, 2012
    Applicants: ES FIBERVISIONS CO., LTD., ES FIBERVISIONS APS, ES FIBERVISIONS LP, ES FIBERVISIONS HONG KONG LIMITED
    Inventors: Tomoaki Suzuki, Shingo Horiuchi