With Twining, Plying, Braiding, Or Textile Fabric Formation Patents (Class 264/103)
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Publication number: 20110046742Abstract: A fibre-based surgical implant stabilized against fraying, includes a thermally crimped flat-knitted fabric of a biocompatible, optionally biodegradable, polymer material having a glass transition temperature or other thermally induced secondary conformational mobility threshold in the temperature range of from 20° C. to +170° C. Also disclosed is a corresponding fabric and methods of producing the implant and the fabric.Type: ApplicationFiled: January 16, 2009Publication date: February 24, 2011Applicant: CONIMAR ABInventors: Anders Persson, Eugenio Ferrario
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Publication number: 20110020628Abstract: Polyamide 56 filaments having a relative viscosity in sulfuric acid of 3 to 8, an Mw/Mn ratio of 1.5 to 3, a single fiber fineness of 0.1 to 7 dtex, a strength of 7 to 12 cN/dtex, a shrinkage rate of 5 to 20% after having been subjected to boiling water treatment at 98° C. for 30 minutes, a strength of 5 to 11 cN/dtex after the boiling water treatment and a stress at 10% elongation of 0.3 to 1.5 cN/dtex after the boiling water treatment.Type: ApplicationFiled: March 10, 2009Publication date: January 27, 2011Applicant: TORAY INDUSTRIES, INC.Inventors: Kousuke Fukudome, Katsuhiko Mochizuki
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Patent number: 7871946Abstract: A nonwoven fabric composed of ultra-fine continuous fibers having a mean fineness of not more than 0.5 dtex is prepared. The nonwoven fabric comprises a water-soluble thermoplastic resin in a proportion of not more than 5% by weight relative to the nonwoven fabric, has an absorbing height of not less than 30 mm as determined at 20° C. after 10 minutes based on Byreck method when the nonwoven fabric immersion-treated for 60 minutes in a water of 80° C. is used, and satisfies the following formula: (B)/(A)?0.25, wherein the symbol (B) represents a tensile strength [N/5 cm] in the longitudinal direction and the lateral direction of the nonwoven fabric and the symbol (A) represents a fabric weight [g/m] of the nonwoven fabric. In the nonwoven fabric, not less than 30% of the surface may be coated with the water-soluble thermoplastic resin. The water-soluble thermoplastic resin may be a water-soluble thermoplastic polyvinyl alcohol, e.g.Type: GrantFiled: September 27, 2004Date of Patent: January 18, 2011Assignee: Kuraray Co., Ltd.Inventors: Takuya Tsujimoto, Naoki Fujiwara, Midori Okazaki, Nozomu Sugo
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Patent number: 7867421Abstract: The invention relates to a method for the production of composite fibers with an increased content of colloidal particles, made from a pre-fiber, comprising a polymeric binder and colloidal particles, during which the chemical structure of the polymeric binder is degraded at a temperature of the order of ambient temperature such as to at least partially eliminate the above. The invention further relates to a fiber comprising a polymeric binder and colloidal particles, combining an excellent mechanical strength and a content of colloidal particles greater than 70% by mass.Type: GrantFiled: April 28, 2004Date of Patent: January 11, 2011Assignees: Centre National de la Recherche Scientifique (C.N.R.S.), Universite des Sciences Et Technologies (Bordeaux 1)Inventors: Philippe Poulin, Stephane Badaire, Cecile Zakri, Maryse-Marie-Therese Maugey
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Publication number: 20100323575Abstract: A biodegradable fiber for use in forming a nonwoven web is provided. The fiber is formed from a thermoplastic composition comprising at least one polylactic acid in an amount from about 75 wt. % to about 99 wt. % and at least one polyether copolymer in an amount from about 1 wt. % to about 25 wt. %, wherein the polyether copolymer contains from about 40 mol. % to about 95 mol. % of a repeating unit (A) having the following formula. wherein, x is an integer from 1 to 250, the polyether copolymer further containing from about 5 mol. % to about 60 mol. % of a repeating unit (B) having the following formula. wherein, n is an integer from 3 to 20; and y is an integer from 1 to 150. Such polyether copolymers have been found to improve a variety of characteristics of the resulting thermoplastic composition, including its ability to be melt processed into fibers and webs, as well as its sensitivity to moisture.Type: ApplicationFiled: December 13, 2007Publication date: December 23, 2010Inventors: Aimin He, Vasily A. Topolkaraev
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Patent number: 7850899Abstract: A web is made by first extruding multicomponent filaments from a spinneret and then passing the extruded filaments through a process air shaft. Cold air is directed against the filaments in the process air shaft to cool and aerodynamically stretch the filaments while excluding the entry of other air into the process air shaft. The cooled and stretched multicomponent filaments are then deposited in a mat on a support, and then the mat of multicomponent filaments to a web is consolidated by subjecting it to water jets at a pressure of 10 bar to 200 bar such that the multicomponent filaments fuse together at crossover points and the filaments have a considerable free length between crossover points where they are fused. Finally the web is heat treated to crinkle the filaments thereof and bulk of the web.Type: GrantFiled: February 13, 2007Date of Patent: December 14, 2010Assignee: Reifenhauser GmbH & Co. MaschinenfabrikInventor: Bernd Kunze
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Publication number: 20100310631Abstract: The present invention relates to a method for preparing by wet spinning a continuous filament based on hyaluronic acid in free acid form, notably soluble in water. The preparation method according to the invention comprises the following steps: a) preparing a spinnable aqueous solution of hyaluronic acid or of a hyaluronic acid salt, preferably a sodium hyaluronate solution; b) extruding said solution to an extrusion die; c) forming the filament by passing the extruded solution into a bath of acetic acid, concentrated to more than 80%, drawing and drying. The invention also relates to a filament based on hyaluronic acid in free acid form, said filament having swelling properties in water and physiological liquids and moreover being solubilizable in water under certain conditions.Type: ApplicationFiled: September 26, 2008Publication date: December 9, 2010Applicants: UNIVERSITE CLAUDE BERNARD LYON I, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Alain Domard, Laurent David, Florence Dupasquier
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Patent number: 7846374Abstract: The present invention is directed to a method for preparing a nanofiber web by feeding a polymer solution, which has at least one polymer dissolved in at least one flammable solvent to a spinning nozzle, discharging the polymer solution from the spinning nozzle into a blowing gas or gas mixture that will not support combustion, wherein the blowing gas exits a jet at a lower end of the spinning nozzle, to form polymer nanofibers and collecting the polymer nanofibers on a collector under the spinning nozzle, wherein an applied high voltage differential is maintained between the spinneret and the collector.Type: GrantFiled: November 5, 2004Date of Patent: December 7, 2010Assignee: E. I. du Pont de Nemours and CompanyInventor: Joseph Brian Hovanec
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Patent number: 7846544Abstract: [PROBLEMS] To provide a polyester monofilament which shows a high dimensional stability and excellent effects of preventing peel-off in filaments, preventing pirn barre and preventing halation and has a high fineness, a high strength and a high modulus. [MEANS FOR SOLVING PROBLEMS] A core-shell type composite polyester monofilament comprising polyethylene terephthalate at a ratio of 80% by mol or higher, which satisfies the following requirements A to F: A) the intrinsic viscosity of the core component being 0.70 or above and the intrinsic viscosity of the shell component being from 0.55 to 0.60; B) the core component amounting to 50 to 70%; C) at least the shell component containing from 0.2 to 0.4% by weight of metal microparticles; D) the fineness of the monofilament being from 5 to 15 dtex, its modulus at elongation of 5% being from 3 to 4.5 cN/dtex and its elongation at break being from 20 to 40%; E) the free shrinkage of the innermost part under specific conditions being 0.Type: GrantFiled: July 5, 2006Date of Patent: December 7, 2010Assignee: Teijin Fibers LimitedInventor: Satoshi Nagamune
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Patent number: 7842208Abstract: 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: GrantFiled: July 16, 2008Date of Patent: November 30, 2010Assignee: Diolen Industrial Fibers B.V.Inventors: Bastiaan Krins, Johannes Frederik Boer
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Publication number: 20100297441Abstract: Fibers are spun from a supported array of nanotubes. Fibers are spun using a spinning shaft with, for example, a hook shaped end that contacts the supported nanotubes and twists some of them around each other to begin the fiber. As the twisted nanotubes detach from the support, the shaft moves away from and along the supported array in a controlled direction and at a controlled speed as it spins to twist and detach additional nanotubes from the support and extend the length of the fiber. If the array is pretreated with a dilute polymer solution, excess solution is squeezed out of the growing fiber during spinning, and the polymer may be cured at elevated temperature to provide a strong nanotube composite fiber.Type: ApplicationFiled: February 4, 2005Publication date: November 25, 2010Inventor: Yuntian T. Zhu
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Publication number: 20100276830Abstract: Disclosed is a method for manufacturing a fiber-reinforced composite sabot for use in APFSDS (Armor Piercing Fin Stabilized Discarding Sabot) wherein a plurality of fiber mats are laminated instead of one-directional prepreg ply and whole part is reinforced by stitching through long fiber bundle in order to enhance circumferential shear strength, and high quality fiber-reinforced composite sabot is manufactured in a short time using resin-injection vacuum assisted resin transfer molding after stitching.Type: ApplicationFiled: September 23, 2008Publication date: November 4, 2010Inventors: In-Seo Park, Jin-Seok Kim, Seung-Un Yang, Young-Jun Jeon
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Patent number: 7815160Abstract: A mandrel for use as a substrate in the manufacture of woven or braided articles may comprise an inner core of foam; at least a first intermediate layer of carbon fiber-reinforced resin; and an outer layer of glass fiber-reinforced resin. The foam core may comprise a high density, closed cell polyurethane foam that is formed of a desired size and shape. The fibers in the intermediate layer and outer layer may be, for example, chopped fibers, continuous longitudinally aligned fibers, circumferentially wound fibers, obliquely aligned fibers, or the fibers may have a woven or braided pattern. Multiple mandrel may be joined together to form complex mandrel shapes such as curves, ovals, and circles.Type: GrantFiled: March 30, 2007Date of Patent: October 19, 2010Assignee: A & P TechnologyInventor: Steven Stenard
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Publication number: 20100255223Abstract: The invention relates to an artificial turf, comprising a backing and a number of artificial grass blades connected to the backing and extending transversely of the surface thereof, which artificial grass blades have an irregular, in particular a locally narrowed, cross-section. Owing to this locally narrowed cross-section in the vicinity of the free end thereof, these artificial grass blades greatly resemble natural blades of grass and also display similar behaviour. The invention also relates to a method for forming such an artificial turf and to a device with which this method can be performed. The narrowed cross-section can herein be formed by stretching the artificial grass blades, wherein the artificial grass blades can be plasticized before, during and/or after the stretching, for instance by local heating thereof.Type: ApplicationFiled: August 21, 2008Publication date: October 7, 2010Inventor: Hugo De Vries
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Publication number: 20100237529Abstract: A method is described for forming reconstituted leather sheet material from a mixture of base fibres, such as leather fibres, and bi-component synthetic fibres which have outer layers which melt at a lower temperature than their inner cores. The fibres are mixed, formed into a web and then heated so that the synthetic fibres fuse together to form a network within the web. The base fibres are then tangled, whilst constrained by the network, preferably using hydroentanglement. A high quality reconstituted leather sheet material is thus produced.Type: ApplicationFiled: April 26, 2010Publication date: September 23, 2010Inventor: Christopher Graham Bevan
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Patent number: 7798795Abstract: A method and apparatus for depositing synthetic filaments to form a non-woven web, wherein the filaments are drawn off from a spinneret through a drawing unit in a row-shaped arrangement using a feed fluid, accelerated into a guide channel and blown out as a filament stream toward an advancing deposit belt. The filament stream is deflected immediately before it impacts upon the deposit belt unilaterally in the advancing direction of the deposit belt in such a way that the filaments impact upon the deposit belt at an angle of <90°. For this purpose, a deflecting means is mounted immediately above the deposit belt.Type: GrantFiled: March 8, 2006Date of Patent: September 21, 2010Inventors: Mathias Stündl, Mathias Gröner-Rothermel
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Publication number: 20100227984Abstract: Rigid-rod polymer fiber filaments, such as poly (p-phenylenebenzobisoxazole) (PBO), having improved retention of physical properties are prepared by preparing a polymer solution and extruding that solution to form a filament, and then treating that filament with water, base solution, and water. The treated filament may be further heat-treated, or further treated with water. The treated filaments are less susceptible to the degradation caused by heat, humidity, and UV radiation.Type: ApplicationFiled: March 5, 2009Publication date: September 9, 2010Inventors: Thuy DANG, Paul E. Liggett, Dhiraj H. Darjee, Daniel H. Jones, James I. Mascolino
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Patent number: 7793357Abstract: This invention provides a method of producing chitosan non-woven fabrics and an apparatus thereof. At first, a chitosan acidic solution is extruded to form a chitosan fibrous stream. Then, a solidifying agent is ejected to form a solidifying agent stream. The solidifying agent stream and the chitosan fibrous stream are combined to form a pre-solidified chitosan fiber. Then, high-pressure air is ejected on the pre-solidified chitosan fiber to stretch the pre-solidified chitosan fiber. Finally, the chitosan fibers are collected to form chitosan non-woven fabrics.Type: GrantFiled: September 29, 2006Date of Patent: September 7, 2010Assignee: Taiwan Textile Research InstituteInventors: Chao-Chun Peng, Tzu-Hsiang Huang, Jian-Min Lin, Jen-Hsiung Lee
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Publication number: 20100222755Abstract: Described herein is a meltspun laminate comprising two or more layers of meltspun fabrics, wherein layers that are adjacent to one another are in situ entangled with one another to define an interfacial region of mixed fibers between the layers. Also described herein is a method of making a meltspun in situ laminate comprising simultaneously meltspinning two or more polymer melts adjacent to one another to form adjacent fabrics, wherein layers that are adjacent to one another are in situ entangled with one another to form an interfacial region of mixed fibers between the layers. Also described herein is a meltspinning apparatus comprising one or more dies, each die comprising two or more meltspinning zones, wherein each zone comprises a plurality of nozzles that are fluidly connected to the corresponding zone, and wherein each zone is fluidly connected to a melt extruder.Type: ApplicationFiled: September 24, 2009Publication date: September 2, 2010Inventor: Alistair Duncan Westwood
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Patent number: 7785507Abstract: A novel process is provided for making spin-drawn yarn from poly(trimethylene terephthalate). The yarn, when packaged on a cheese-shaped spindle, can be produced in large sizes without crushing.Type: GrantFiled: April 30, 2004Date of Patent: August 31, 2010Assignee: E. I. du Pont de Nemours and CompanyInventor: Zhuomin Ding
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Publication number: 20100215895Abstract: A process for producing ultramicrodenier filaments evenly distributed in a fabric matrix includes producing bicomponent fibers or filaments using two polymer components; converting the bicomponent fibers or filaments into a fabric; and treating the fabric with an alkali to produce ultramicrodenier filaments of the order of 0.05 to 0.13 denier per filament uniformly distributed in the fabric matrix.Type: ApplicationFiled: August 8, 2006Publication date: August 26, 2010Applicant: RELIANCE INDUSTRIES LTD.Inventors: Vikas Madhusudan Nadkarni, Santosh Raghavendra Huilgol, Rajiv Kumar, Manoj Jhaver, Rupesh Kumar Gupta
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Patent number: 7780904Abstract: The invention provides a method for manufacturing spun-bonded nonwoven fabrics that can reduce the diameter of a filament without decreasing productivity and can stably produce nonwoven fabrics, comprising: quenching a multiple number of continuous melt-spun filaments through spinning nozzles with quench air fed to a quenching chamber, drawing the filaments, and depositing the filaments on a moving collector surface, wherein the quench air fed to the quenching chamber is divided into at least 2 streams in vertical direction, and an air velocity of the quench air in the lowermost stream is set higher than that of the 50 quench air in the uppermost stream. The invention also provides an apparatus for manufacturing spun-bonded nonwoven fabrics, wherein quench air fed to the quenching chamber is divided into at least 2 streams in the vertical direction, wherein the velocities of the quench air are independently controllable in the respective streams.Type: GrantFiled: July 19, 2007Date of Patent: August 24, 2010Assignee: Mitsui Chemicals, Inc.Inventors: Minoru Hisada, Kenichi Suzuki
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Patent number: 7780903Abstract: The present invention can provide a distinctive method and process for making polymer fibers (62) and nonwoven fabric webs (60). The method can include providing a fiber material that exhibits a low crystallization rate. In a particular aspect, the fiber material can be subjected to an anneal-quench at an anneal-quench temperature that approximates a prime-temperature at which the polymer material most rapidly crystallizes. In another aspect, the fiber material can be subjected to a fiber-draw at a selected fiber-draw temperature, and in a further aspect, the fiber-draw temperature can be configured to approximate the prime-temperature of the polymer material. In still other aspects, the fiber material can be subjected to a relatively small amount of fiber-draw, and the fiber-draw can be provided at a relatively low fiber-draw speed.Type: GrantFiled: June 1, 2005Date of Patent: August 24, 2010Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Vasily A. Topolkaraev, Jayant Chakravarty, Kevin Christopher Possell, Hristo Angelov Hristov
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Patent number: 7776251Abstract: Sound insulation core material is made by melt-blowing a polypropylene resin having a hydroxystearamide wax additive to produce a fibrous mass having improved loft. The core material is encased between outer layers of spun-bond polyethylene fibers by longitudinal seams and transverse seams to form a product suitable for use in dishwashers.Type: GrantFiled: February 28, 2006Date of Patent: August 17, 2010Inventors: Rowland Griffin, John P. Field
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Publication number: 20100201020Abstract: The invention provides a non-woven fabric comprising at least two separate but interconnected layers, each of the layers being provided with discrete interconnections so as to provide discrete voids between the two layers of fabric.Type: ApplicationFiled: April 27, 2010Publication date: August 12, 2010Applicant: Nonwovens Innovation and Research Institute LimitedInventors: Stephen J. Russell, Alireza Pourmohammadi, Ningtao Mao, Idris A. Ahmed, Manoj K. Rathod
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Publication number: 20100193437Abstract: Fluid treatment arrangements and elements and methods for making and using fluid treatment arrangements and elements are disclosed. A ribbon including a permeable fluid treatment medium may be spirally wound in a plurality of windings to form a fluid treatment element having a disk-shaped body. At least two and as many as many as fifty or more fluid treatment elements may be positioned along a core assembly with spaces between at least some of the adjacent fluid treatment elements to form a fluid treatment arrangement. For some embodiments, fluid flowing between the exterior of the fluid treatment arrangement and the interior of the core assembly may flow through a permeable fluid treatment medium having a first fluid treatment characteristic and a permeable fluid treatment medium having a different second fluid treatment characteristic.Type: ApplicationFiled: March 14, 2008Publication date: August 5, 2010Applicant: PALL CORPORATIONInventors: Thomas Welch, JR., Mark F. Hurwitz, Tanweer ul Haq, Joseph Verschneider
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Publication number: 20100196672Abstract: A non-woven material is provided, comprising an external non-elastic base layer and an auxiliary layer comprising an elastic material, the base layer and auxiliary layer being mechanically bonded to one another.Type: ApplicationFiled: July 20, 2008Publication date: August 5, 2010Applicant: AVGOL INDUSTRIES 1953 LTD.Inventor: Achai Bonneh
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Patent number: 7767120Abstract: The present invention relates to multifilament crimped yarn comprising an aliphatic polyester and methods for producing thereof, and to carpets that are manufactured by using the crimped yarn. The present invention provides an aliphatic polyester multifilament crimped yarn for the carpets comprising an aliphatic polyester having a melting point of equal to or higher than 130° C., said multifilament crimped yarn having crimp elongation rate of the multifilament crimped yarn after being processed with boiling water of 3-35% and breaking strength of 1-5 cN/decitex.Type: GrantFiled: April 2, 2004Date of Patent: August 3, 2010Assignee: Toray Industries, Inc.Inventors: Daisuke Yahata, Kazuya Matsumura, Shinnichi Nishihata, Motokatsu Nishimura, Tatsuro Mizuki, Masakatsu Umeda, Takehiko Miyoshi, Kenzo Kubo
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Publication number: 20100186364Abstract: 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: ApplicationFiled: July 16, 2008Publication date: July 29, 2010Inventors: Bastiaan Krins, Johannes Frederik Boer
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Publication number: 20100187712Abstract: Embodiments for methods and apparatuses for forming a nonwoven web are described herein. In one embodiment, an apparatus includes one or more sources configured to dispense a first fluid flow stream comprising a fiber and a second fluid flow stream also comprising a fiber. The apparatus also includes a mixing partition downstream from the one or more sources, where the mixing partition is positioned between the first and second flow streams from the one or more sources. The mixing partition defines one or more openings that permit fluid communication between the two flow streams. The apparatus also includes a receiving region situated downstream from the one or more sources and designed to receive at least a combined flow stream and form a nonwoven web by collecting fiber from the combined flow stream.Type: ApplicationFiled: January 27, 2010Publication date: July 29, 2010Applicant: DONALDSON COMPANY, INC.Inventors: Hemant Gupta, Brad E. Kahlbaugh
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Publication number: 20100175803Abstract: The present invention relates to a drawn PET fiber which has good dimensional stability and can be applied to a cap ply cord for a pneumatic tire, a PET tire cord, their preparation methods, and a tire including the same.Type: ApplicationFiled: June 20, 2008Publication date: July 15, 2010Applicant: KOLON INDUSTRIES, INC.Inventors: Ok-Hwa Jeon, Il Chung, Gi-Woong Kim
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Patent number: 7754119Abstract: Polymeric structures, methods for making same, fibrous structures comprising same and fibrous product incorporating same are provided.Type: GrantFiled: June 27, 2005Date of Patent: July 13, 2010Assignee: The Procter & Gamble CompanyInventors: David William Cabell, David Warren Loebker, Larry Neil Mackey, Gregory Charles Gordon, Mark Ryan Richards, Fred J. Keck
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Patent number: 7744791Abstract: Polymeric structures, methods for making same, fibrous structures comprising same and fibrous product incorporating same are provided.Type: GrantFiled: June 27, 2005Date of Patent: June 29, 2010Assignee: The Procter & Gamble CompanyInventors: David William Cabell, Paul Dennis Trokhan, David Warren Loebker
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Publication number: 20100161034Abstract: An open frame prosthesis is formed with looped end terminations at its proximal and distal ends. At one end of the prosthesis, the filaments or strands are welded together in pairs to form strand couplings. A plurality of loop segments are connected to the strand couplings, one loop segment for each pair of adjacent strand couplings. In one version of the prosthesis, strands at the opposite end are bent to form looped ends. In another version, loop segments are connected to pairs of strand couplings at both ends of the prosthesis. The loop segments can be connected to the couplings by welding, fusion bonds, or tubes, which are either crimped or heat shrunk.Type: ApplicationFiled: December 30, 2009Publication date: June 24, 2010Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Gary J. Leanna, Paul K. Norton, Peter Brady, Dean Molloy, Michael E. Zupkofska
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Patent number: 7740777Abstract: A spunbond system for manufacturing a non-woven web of fibers includes a spin beam assembly configured to process and deliver a plurality of polymer streams for extrusion through spinneret orifices. The spin beam assembly includes a plurality of manifold sections within the spin beam assembly, each manifold section including a distribution pipe configured to transfer a respective polymer component to a plurality of piping sections extending within the manifold section and a heat transfer medium that flows within the manifold section and around the piping sections extending into the manifold section so as to maintain the respective polymer component at a selected temperature.Type: GrantFiled: February 16, 2007Date of Patent: June 22, 2010Assignees: Hills, Inc., Reifenhauser GmbH & Co. MaschinenfabrikInventors: Arnold Wilkie, Hermann Balk
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Patent number: 7731876Abstract: 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: GrantFiled: June 26, 2003Date of Patent: June 8, 2010Assignee: Diolen Industrial Fibers B.V.Inventors: Hendrik Middeljans, Eric Heuveling, Bastiaan Krins, Johannes Frederik Boer
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Publication number: 20100136076Abstract: An insecticidal thread comprising a first type of filaments and a second type of filaments according to the invention. The first type of filaments has an insecticide or a synergist or both incorporated in a polymeric material of the first type of filaments. The second type has an insecticide or synergist or both incorporated in a polymeric material of the second type of filaments. The content of insecticide or synergist in the second type of filaments is different from the content of insecticide or synergist of the first type of filaments. Alternatively, the thread is an extruded monofilament with a first and a second part with insecticide and/or synergist.Type: ApplicationFiled: June 29, 2007Publication date: June 3, 2010Inventor: Mikkel Vestergaard Frandsen
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Publication number: 20100117251Abstract: 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: ApplicationFiled: January 26, 2010Publication date: May 13, 2010Applicant: Noveko Trading 2008 LLCInventors: Ming-Fung Lin, Hung-Jen Chen, Chia-Jen Chen, Yung-Chien Chen, Chao-Mulan Chen
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Publication number: 20100099321Abstract: In an apparatus for the production of a non-woven fabric, a plurality of filaments (11) are extruded by a spinneret (2) into at least two groups spaced from each other to define an area of the cooling chamber without filaments and structures; the filaments are cooled by an air flow (Y) conveyed into the cooling chamber directed towards an intermediate area between said two groups of filaments, said area being located below an area of the spinneret without extrusion holes.Type: ApplicationFiled: December 17, 2007Publication date: April 22, 2010Applicant: FARE' S.P.A.Inventor: Rosaldo Fare'
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Patent number: 7700191Abstract: This invention relates to a flame-resistant spun staple yarns and fabrics and garments comprising these yarns and methods of making the same. The yarns have 50 to 95 parts by weight of a polymeric staple fiber containing a structure derived from a monomer selected from the group consisting of 4,4?diaminodiphenyl sulfone, 3,3?diaminodiphenyl sulfone, and mixtures thereof; and 5 to 50 parts by weight of a high modulus staple fiber having a tensile modulus of 200 grams per denier (180 grams per dtex) or greater or greater, based on 100 parts by weight of the polymeric fiber and the high modulus fiber in the yarn.Type: GrantFiled: August 22, 2007Date of Patent: April 20, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Reiyao Zhu, Vlodek Gabara
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Patent number: 7700190Abstract: This invention relates to a flame-resistant spun staple yarns and fabrics and garments comprising these yarns and methods of making the same. The yarns have 25 to 90 parts by weight of a polymeric staple fiber containing a structure derived from a monomer selected from the group consisting of 4,4?diaminodiphenyl sulfone, 3,3?diaminodiphenyl sulfone, and mixtures thereof; and 10 to 75 parts by weight of a textile staple fiber having limiting oxygen index of 21 or greater, based on 100 parts by weight of the polymeric fiber and the textile fiber in the yarn.Type: GrantFiled: August 22, 2007Date of Patent: April 20, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Reiyao Zhu, Roger Parry, Debbie Guckert, Vlodek Gabara, Yves Bader
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Publication number: 20100092531Abstract: A textile implant includes at least one thread having a polymeric core and a polymeric sheath which surrounds the polymeric core at least partly, wherein the sheath includes a composition including at least one silica-supported antimicrobial active agent.Type: ApplicationFiled: October 12, 2009Publication date: April 15, 2010Applicants: AESCULAP AG, HEIQ MATERIALS AGInventors: Erich Odermatt, Ingo Berndt, Carlo Riccardo Centonze, Murray Height
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Patent number: 7687012Abstract: A method and apparatus including means for delivery of at least one high speed composite stream of polymer fibers and secondary material. The method and apparatus also includes a movable collection device which intersects in the composite stream of polymer fibers and secondary material and at least one non-contact deflector to redirect at least a portion of the composite stream.Type: GrantFiled: August 30, 2005Date of Patent: March 30, 2010Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Susan J. Daniels, Sara J. Schewe, Randall W. Foss, David P. Hunter, Michael A. Schmidt
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Patent number: 7682554Abstract: An apparatus for forming a shaped fibrous nonwoven structure including a delivery system adapted to provide a high speed composite stream comprising thermoplastic polymer fibers and a secondary material. The apparatus also includes a movable collection device having a collection surface which intersects the composite stream, and at least one deflector to mechanically redirect at least a portion of the composite stream. Further the deflector moves in synchronization with the movable collection device, such that the composite stream is collected on the collection surface forming a fibrous nonwoven structure having at least one non-linear edge.Type: GrantFiled: August 30, 2005Date of Patent: March 23, 2010Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Michael B. Venturino, Seth M. Newlin, Paul E. Olmstead, Susan J. Daniels, Sara J. Schewe
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Patent number: 7682994Abstract: A fabric comprising a textile layer comprising yarns, wherein said textile layer is permeable to water vapour and impermeable to liquid water; and disposed on at least part of one side of the textile layer is a wicking means.Type: GrantFiled: July 13, 2005Date of Patent: March 23, 2010Assignee: Lightex LimitedInventors: Oliver Van Emden, Chris Carr
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Publication number: 20100062672Abstract: In an apparatus for the production of a non-woven fabric of filaments, where a plurality of filaments are extruded, cooled, stretched and collected on a mobile support, the means of collecting the filaments include furthermore, a gas permeable mobile support element (28), an aspirator (29) and one or more aspiration ducts (33C-36C), the collecting means being insulated from the environment air.Type: ApplicationFiled: December 17, 2007Publication date: March 11, 2010Applicant: FARE' S.P.A.Inventor: Rosaldo Fare'
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Publication number: 20100062671Abstract: A wipe including at least one non-woven web layer of discontinuous fibers; and a spunbond-meltblown-spunbond web layer of continuous fibers positioned in facing and adjacently contacting relation with the at least one non-woven web layer, wherein the wipe has an opacity index of at least 1.3, where the opacity index is calculated based on the following equation: opacity index=(opacity of the wipe)/(total basis weight of the wipe).Type: ApplicationFiled: September 5, 2008Publication date: March 11, 2010Applicant: Nutek Disposables, Inc.Inventors: William Child, Robin Damaghi, Lawrence E. Duane
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Patent number: 7674409Abstract: Methods for preparation of high strength yarns having superior yarn-to-yarn uniformity of denier, tenacity and tensile modulus and uniform unidirectional fibrous sheets. Ballistic composites prepared from these yarns and fibrous sheets have improved uniformity of ballistic resistance. The drawn yarns, fibrous sheets and articles made therefrom are more uniform than the prior art and are useful in applications requiring impact absorption and ballistic resistance, such as body armor, helmets, breast plates, helicopter seats, spall shields; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.Type: GrantFiled: September 25, 2006Date of Patent: March 9, 2010Assignee: Honeywell International Inc.Inventors: Thomas Y-T. Tam, Chok B. Tan, Brian D. Arvidson
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Publication number: 20100052203Abstract: A yarn layer forming apparatus includes: an annular braider that supplies braider yarn; an annular first supply device that supplies first yarn; an annular second supply device that supplies second yarn; and an actuating device that moves a mandrel. At least one of the first supply device and the second supply device is rotatable. A layer structure of yarn layers is formed on a peripheral surface of the mandrel. The layer structure of yarn layers includes at least yarn arrangement layers formed respectively by the first and second supply devices and a woven layer formed by the braider.Type: ApplicationFiled: September 2, 2009Publication date: March 4, 2010Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Koichi INAZAWA, Fujio HORI
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Publication number: 20100048072Abstract: The present invention is directed to a nonwoven fabric made from a composite of nonwoven and pulp where the nonwoven has a high loft derived from a heat set three-dimensional relief structure and/or hydroengorged fiber structure. A non-woven web is hydraulically treated to create a hydroengorged material having an increased loft. Alternatively a nonwoven web is treated to have a heat set three-dimensional relief structure. The treated web is then hydroentangled with pulp to form a cotendered nonwoven/pulp composite fabric.Type: ApplicationFiled: April 10, 2007Publication date: February 25, 2010Inventors: Michael Kauschke, Mordechai Turi