Sheath-core Multicomponent Strand Material Patents (Class 442/200)
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Patent number: 6716778Abstract: The invention discloses a textile laminate (1, 400, 450) with a first layer (5) comprising a waterproof and preferably breathable functional layer (10, 20) and a second layer (30) comprising at least a first component and a second component. The first component is stable to a first temperature and the second component melts at a lower second temperature. In one embodiment of the invention, the first component is polyester and the second component may be a thermoplastic such as copolyester, polyamide, copolyamide or polyethylene. The textile laminate (1) is particularly advantageous when two of such laminates (1, 400, 450) have to be joined or fused together. In this case a waterproof seam is created at the seam (500) between the two laminates (1, 400, 500).Type: GrantFiled: July 14, 2000Date of Patent: April 6, 2004Inventor: Martin Hottner
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Patent number: 6624097Abstract: An implantable medical article as well as an implantable fiber which is particularly useful for medical implants is disclosed. The fiber includes comprises a first component formed from a substantially resorbable material and a second component formed from a fiber-forming polymer.Type: GrantFiled: December 5, 2000Date of Patent: September 23, 2003Assignee: Solutia Inc.Inventors: Donald H. Martin, John H. Southern
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Patent number: 6615572Abstract: There are provided fabrics excellent in electrical conductane and antistatic property as well as dust proof clothes using the same. Conductive yarn comprising synthetic filament yarn as the core covered with conductive bicomponent fibers is used as conductive yarn used in the warps and/or wefts at intervals.Type: GrantFiled: June 4, 2002Date of Patent: September 9, 2003Assignee: Seiren Co. LTDInventors: Susumu Takagi, Yutaka Matsui
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Patent number: 6589392Abstract: A melt-extruded multicomponent monofilament having good abrasion resistance, flex-fatigue toughness and dimensional stability. The monofilament is particularly suitable for use in the manufacture of papermaking machine forming fabrics, and includes an outer region component comprising polyethylene terephthalate and an inner region component comprising a blend of polyetherester block copolymer and polyethylene terephthalate.Type: GrantFiled: October 18, 2001Date of Patent: July 8, 2003Assignee: Shakespeare Company LLCInventors: David B. Skinner, Atiye E. Tanverdi
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Publication number: 20030124933Abstract: A fabric particularly useful in the manufacture of occupant support structures is described. The fabric is desirably leno woven to have a high degree of openness and such that at least a plurality of the yarn intersections are stabilized from relative motion. The fabric includes elastomeric synthetic yarns in at least one fabric direction. At least some of the points of yarn intersection can be supplementally stabilized from relative motion, such as through the use of bicomponent yarns having a sheath which is melted to secure intersecting yarns together. The fabric is also resistant to ultraviolet irradiation so that it retains its physical properties after accelerated exposure to UV irradiation. The fabric provides good support and ventilation, and is suitable for use as a surface fabric in automotive and seating applications.Type: ApplicationFiled: November 8, 2002Publication date: July 3, 2003Inventors: Doug Salway, Jan L. Williams, Anthony R. Waldrop, Dan P. Gillig
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Patent number: 6557590Abstract: A decorative outdoor fabric including a woven structure formed of warp effect yarns and at least some of the fill yarns comprising self-coating yarns formed of high melt and low melt yarn constituents. When the fabric is tentered, the low melt constituents melt and cross-flow to the other fibers in the fill and warp yarns. Both the warp yarns have deniers in the range of 50-4000 and the fill yarns have deniers in the range of 150-4000. Because of the cross-flow of the low melt constituents, the resulting fabric achieves acceptable abrasion resistance, stability, and load recovery and hand without the need for a latex backing.Type: GrantFiled: December 18, 2000Date of Patent: May 6, 2003Assignee: Glen Raven, Inc.Inventors: David N. Swers, Johnny E. Parrish
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Patent number: 6548429Abstract: A synthetic polymer yarn comprising a bicomponent yarn and a second yarn combined to form a single yarn is disclosed. The bicomponent yarn is made up from a first component and a second component each comprised of a fiber-forming polymer and each having different shrinkages from the other to effectuate a bulking effect. This differential shrinkage may be obtained, for example, by using different polymers or similar polymers having different relative viscosities. The synthetic polymer yarn of the present invention has advantageously exhibited an improved visual effect, including a stratified effect, which improves the visual composition of products produced using the yarn. Moreover, the fabrics produced from the yarn have improved hand and stretch and recovery.Type: GrantFiled: February 23, 2001Date of Patent: April 15, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Boyd M. Lintecum, Richard T Shoemaker, C Reed Anderson, Jr.
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Patent number: 6528139Abstract: The present invention provides a process for producing yarn having reduced heatset shrinkage. Preferably, the fibers used in making the yarn are bicomponent fibers. The present invention also provides a process for producing yarn having reduced heatset shrinkage at reduced heat temperatures.Type: GrantFiled: September 8, 1998Date of Patent: March 4, 2003Assignee: BASF CorporationInventors: Matthew B. Hoyt, Wendel L. Burton, James R. Bristow
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Patent number: 6432850Abstract: There are provided fabrics excellent in electrical conductane and antistatic property as well as dust proof clothes using the same. Conductive yarn comprising synthetic filament yarn as the core covered with conductive bicomponent fibers is used as conductive yarn used in the warps and/or wefts at intervals.Type: GrantFiled: March 31, 1999Date of Patent: August 13, 2002Assignee: Seiren Co., Ltd.Inventors: Susumu Takagi, Yutaka Matsui
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Publication number: 20020098759Abstract: A fabric particularly useful in the manufacture of occupant support structures is described. The fabric is desirably leno woven to have a high degree of openness and such that at least a plurality of the yarn intersections are stabilized from relative motion. The fabric includes elastomeric synthetic yarns in at least one fabric direction. At least some of the points of yarn intersection can be supplementally stabilized from relative motion, such as through the use of bicomponent yarns having a sheath which is melted to secure intersecting yarns together. The fabric is also resistant to ultraviolet irradiation so that it retains its physical properties after accelerated exposure to UV irradiation. The fabric provides good support and ventilation, and is suitable for use as a surface fabric in automotive and seating applications.Type: ApplicationFiled: November 26, 1999Publication date: July 25, 2002Inventors: DOUG SALWAY, JAN L. WILLIAMS, ANTHONY R. WALDROP, DAN P. GILLIG
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Publication number: 20010009833Abstract: An automotive upholstery fabric resistant to degradation of strength and elastomeric properties upon exposure to ultraviolet irradiation is provided. The fabric includes an elastomeric fiber component which makes up not less than 40 percent by weight of the fabric. This elastomeric fiber component retains at least about 70 and preferably at least about 90 percent of its tensile strength following accelerated exposure to ultraviolet irradiation according to SAE Standard J1885.Type: ApplicationFiled: January 4, 1999Publication date: July 26, 2001Inventors: ANTHONY R. WALDROP, STEVEN W. JOSEY, GETTYS H. KNOX
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Publication number: 20010007706Abstract: An ozone fade resistant dyed carpet made of dyed sheath/core face fibers has a sheath substantially or completely covering the core. The sheath is composed of a fiber-forming polymer which is inherently chemically compatible and is selected from polymers that are resistant to dye migration and yet inherently chemically compatible with the core polymer. The face fibers are dyed with at least one acid dye, basic dye or disperse dye and resist ozone fading as indicated by a CIEL*a*b* total color difference from the original unexposed sample after at least 3 cycles of ozone fading that is less than one-half of the CIEL*a*b* total color difference seen for a fiber composed substantially completely of said core polyamide component that is dyed with the same dyes. The fibers may be cabled and heatset in which case even more substantial improvement in the ozone fastness is observed.Type: ApplicationFiled: August 24, 1998Publication date: July 12, 2001Inventors: MATTHEW B. HOYT, BOBBY J. BAILEY, STANLEY A. MCINTOSH, PHILLIP E. WILSON, GARY W. SHORE
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Patent number: 6241879Abstract: A filter cloth comprising at least a base layer and a filtering layer, characterized in that the ratio T/L of the thickness (T) of the filtering layer to the length (L) of fibers of fiber bundles constituting the filtering layer is 0.02 to 0.7 and the sum of a projected area of the fibers onto the base layer surface is 8 to 350 times the area of the base layer surface and, a filter cloth characterized in being constituted with at least a base layer and a filtering layer mainly composed of fiber bundles of crimped fiber ratio over 5%.Type: GrantFiled: February 18, 1998Date of Patent: June 5, 2001Assignee: Toray Industries, Inc.Inventors: Hiroyasu Kato, Manabu Terao, Yoshihiro Tomida
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Patent number: 6161596Abstract: A decorative outdoor fabric including a woven structure formed of acrylic warp yarns and at least some of the fill yarns comprising self-coating yarns formed of high melt and low melt yarn constituents. When the fabric is tentered, the low melt constituents melt and cross-flow to the other fibers in the fill and warp yarns. The warp yarns have deniers of at least 150 d and the fill yarns have deniers of at least 400 d resulting fabric achieves acceptable abrasion resistance, stability, and load recovery and hand without the need for a latex backing.Type: GrantFiled: March 15, 2000Date of Patent: December 19, 2000Inventors: David N. Swers, Johnny E. Parrish
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Patent number: 6092563Abstract: A decorative outdoor fabric including a woven structure formed of acrylic warp yarns and at least some of the fill yarns comprising self-coating yarns formed of high melt and low melt yarn constituents. When the fabric is tentered, the low melt constituents melt and cross-flow to the other fibers in the fill and warp yarns. The warp yarns have deniers of at least 150 d and the fill yarns have deniers of at least 400 d. Because of the cross-flow of the low melt constituents, the resulting fabric achieves acceptable abrasion resistance, stability, and load recovery and hand without the need for a latex backing.Type: GrantFiled: December 29, 1998Date of Patent: July 25, 2000Assignee: Glen Raven Mills, Inc.Inventors: David N. Swers, Johnny E. Parrish
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Patent number: 6008146Abstract: An improved composite material of high temperature and chemical resistant material and polytetrafluoroethylene (PTFE) is provided. The composite material incorporates a coherent strand of commingled filaments of fiberglass and PTFE which is far more resistant to flex, abrasion, and chemical attack than conventional materials. Preferably filaments of expanded PTFE tow yarn and filaments of PTFE are combined through a process of air-jet texturing. Fabrics made from the composite fibers are combined with thermosetting phenolic or epoxy resins to produce pleated cartridge filter elements exhibiting superior performance in high temperature and corrosive environments.Type: GrantFiled: September 2, 1997Date of Patent: December 28, 1999Assignee: Gore Enterprise Holdings, Inc.Inventor: Stephen K. Stark
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Patent number: 6007911Abstract: Industrial fabrics which contain thermoplastic weft or filling filaments characterized by having at least one segment of the filament's cross sectional area consisting of a foamed polymer are described. The unfoamed segment or segments of the filament contribute axial strength while the foamed segment or segments of the filament contribute to radial compressibility. Industrial fabrics utilizing these filaments have reduced permeability, reduced weft denier, and improved fabric rigidity.Type: GrantFiled: March 13, 1998Date of Patent: December 28, 1999Inventor: David Bowen, Jr.
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Patent number: 5981408Abstract: A screen textile material for high precision and high density screen printing is made of a core and sheath type conjugate fiber in which a core component is formed of a thermotropic liquid crystalline polyester (A polymer) and a sheath component is formed by blending a flexible thermoplastic polymer (B polymer) and a thermotropic liquid crystalline polyester (C type) with a blending ratio of the C polymer of 0.15 to 0.45. The core and sheath type conjugate fiber has a specific color specification values to perform high quality printing by prevention of halation.Type: GrantFiled: July 10, 1998Date of Patent: November 9, 1999Assignees: Kuraray Co.,Ltd., NBC Industries Co., Ltd.Inventors: Junyo Nakagawa, Takashi Katayama, Toru Yokomizo, Hiroki Sano
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Patent number: 5888915Abstract: The present invention is directed towards paper machine clothings comprised of interconnected bicomponent fibers. In one embodiment of the invention, the paper machine clothing is comprised entirely of bicomponent fibers in both the machine and cross machine direction. Advantage is taken of the unique bicomponent fiber structure, which permits selection of different materials for the sheath and core components. For instance, the sheath material may have a melting point lower than the melting point of the core material. Accordingly, a fused, bonded structure of bicomponent fibers can be formed where the sheath component has a melting point lower than the core component. By heating a fabric constructed of bicomponent fibers to a temperature greater than the melting point of the sheath component and lower than the melting point of the core component, with subsequent cooling of the fabric to below melt temperature of the sheath component, a fused, bonded structure will result.Type: GrantFiled: September 17, 1996Date of Patent: March 30, 1999Assignee: Albany International Corp.Inventors: Jeffrey Scott Denton, Dana Burton Eagles, Joseph Gerald O'Connor, Robert Bernard Davis
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Patent number: 5888609Abstract: A planar porous composite structure including a plurality of regular textile planar layers formed of continuous yarns. The layers are placed on top of each other to form a structure having two dimensions at right angles to each other and a third dimension perpendicular to them and defining a plane having a direction along the two dimensions. A plurality of openings extends through the layers. Each opening is defined by portions of the continuous yarns extending substantially in the direction of the plane and existing in the regular textile planar layers to make the planar layers regular in structure prior to placing them on top of each other. A plurality of passages extends entirely through the structure in a direction substantially perpendicular to the plane of the structure.Type: GrantFiled: January 22, 1996Date of Patent: March 30, 1999Assignee: Valtion teknillinen tutkimuskeskusInventors: Mikko Karttunen, Esa Suokas
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Patent number: 5866216Abstract: Sound absorbent fabric sleeves are formed from interthreaded, preferably braided, resilient, staple spun polymer yarns. Bulk and softness needed for sound absorption is provided through the staple fibers and resiliency desired for expansion capability and shape maintenance is provided through a resilient monofilament core. The yarns are sometimes referred to as dref mono/poly yarns. The sleeves can be heat set to better resist unraveling and maintain tubular shape. The yarns inherently resist fraying. A pressure sensitive or other adhesive layer or an elastomeric material or other material layer can be provided around all or part of the outsides of the sleeves. Spring clips can be provided extending through the tubes between the yarns to assist in mounting the sleeves or to modify them for uses other than sound absorption.Type: GrantFiled: July 17, 1997Date of Patent: February 2, 1999Assignee: Davlyn Manufacturing Co., Inc.Inventor: Gary L. Flasher
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Patent number: 5840637Abstract: The present invention is directed towards fabrics formed from yarns of a composite filament structure. The composite filament structure is a high modulus filament material covered with bicomponent filaments and the entire surface area of the high modulus material should be covered. The fabric can be used in clothings for paper making machines and other industrial uses.Type: GrantFiled: September 18, 1996Date of Patent: November 24, 1998Assignee: Albany International CorporationInventors: Jeffrey Scott Denton, Dana Burton Eagles, Joseph Gerald O'Connor, Robert Bernard Davis
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Patent number: 5783501Abstract: The invention relates to postcondensed paper machine felts comprising a polyamide base fabric and a polyamide coating needled thereon, the paper machine felts having a relative solution viscosity in sulfuric acid in accordance with the DIN 53,727 standard of 5 or more.The invention further relates to a method of increasing the molecular weight of paper machine felts which comprises impregnating the paper machine felts with a solution of postcondensation catalysts, followed by drying and thermally postcondensing the felts below the melting point of the polyamide in a solid phase by the exclusion of oxygen.Type: GrantFiled: August 14, 1995Date of Patent: July 21, 1998Assignee: EMS-Inventa AGInventors: Gustav Schuetze, Jurgen Spindler
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Patent number: 5776838Abstract: In a ballistic fabric, the use of plurality of bicomponent fibers; the ballistic fabric is made from a plurality of bicomponent fibers and a plurality of high strength fibers. The bicomponent fibers have a sheath and a core, the sheath being made of a polymer having a melting point and the core being made of a polymer having a melting point. The sheath's melting point is less than the core's melting point. The fabric is bonded together using the sheath polymer of the bicomponent to the fibers of the fabric.Type: GrantFiled: February 28, 1997Date of Patent: July 7, 1998Assignee: Hoechst Celanese CorporationInventor: Allan Marcus Dellinger
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Patent number: 5753351Abstract: A nubuck-like woven fabric comprising a two-layered structural yarn wherein ultra-fine polyester multifilaments are primarily disposed in a sheath portion and polyester multifilaments having a larger single fiber thickness are primarily disposed in a core portion, and having an apparent specific gravity of 0.35-0.7 and a shear rigidity of 0.5-1.2 gf/cm.multidot.deg. This woven fabric is produced by a method wherein a woven fabric of a two-layered structural yarn composed of (i) side-by-side type or islands-in-sea type composite multifilaments comprising (a) a readily soluble ingredient and (b) ultra-fine multifilaments-forming ingredient and (ii) highly shrinkable multifilaments, is subjected to a treatment for dissolving and removing ingredient (a) without substantial shrinkage of the two-layered structural yarn, then, the woven fabric is shrunk in a widespread state.Type: GrantFiled: October 16, 1996Date of Patent: May 19, 1998Assignee: Teijin LimitedInventors: Norio Yoshida, Kojiro Shimada, Fumio Shibata, Seiji Tachika
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Patent number: 5654086Abstract: Improvement in a hydrophilic function and in the strength of a cloth article obtained from a durable hydrophilic fibers is attained by the employment a durable hydrophilic fiber consisting of a fiber made of a thermoplastic resin to which 0.2 to 1.0% by weight of a mixture formed of the following surfactant (A),(B), (C), (D) and (E) is adhered:(A) 10 to 30% by weight of one or more compounds selected out of polyoxyalkylene additive of higher alcohol or higher alkylamine of carbon number 28 to 50, or amide formed of fatty acid of carbon number 30 to 50 and polyamine,(B) 10 to 30% by weight of a polyoxyalkylene additive of amide formed of fatty acid of carbon number 20 to 28 and polyamine,(C) 30 to 50% by weight of an amide formed of higher fatty acid of carbon number 16 to 28, and alkanolamine,(D) 10 to 30% by weight of polyoxyalkylene additive of alkylphosphate salt of carbon number 10 to 22, and(E) 2 to 10% by weight of alkylsulfonate salt of carbon number 12 to 16.Type: GrantFiled: July 15, 1996Date of Patent: August 5, 1997Assignee: Chisso CorporationInventors: Masaru Nishijima, Masayasu Suzuki
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Patent number: 5617903Abstract: A papermaker's fabric constructed from polymeric fibers with 15 percent or more of the fabric'fibers larger than 100 denier and multipolymeric, the multipolymeric fibers containing two or more distinct polymeric regions within their cross sections. The multipolymeric fibers may be constructed in a sheath-core, side by side, or islands in the stream form. The components of the multipolymeric fibers are each selected to provide a combination of properties not available from any single polymer fiber.Type: GrantFiled: March 4, 1996Date of Patent: April 8, 1997Inventor: David Bowen, Jr.