Needled Nonwoven Fabric Patents (Class 442/402)
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Patent number: 7947613Abstract: The present invention is directed to a low-density substrate, which has an optimized pore volume distribution. The optimized pore volume distribution allows the substrate to hold at least 50 percent of its cumulative volume within pores with a radius size of about 110 to 250 microns. The optimized pore volume distribution can also be characterized by having a dry fibrous web that absorbs less than 20 percent of the cumulative volume of the fibrous web at a pore radius of 75 microns. The optimized pore volume distribution of the substrate enables it to controllably release a fluid composition effectively onto a surface. The basis weight of the substrate is about 80 to 20 gsm and the density of the substrate is below 0.1 g/cc. The substrate may be a pre-loaded wipe, which is either moistened by a consumer prior to use or moistened prior to packaging. The composition loaded onto the substrate may contain dry and/or liquid compositions preferably for cleaning hard or soft surfaces.Type: GrantFiled: March 1, 2010Date of Patent: May 24, 2011Assignee: The Clorox CompanyInventors: William Ouellette, Nikhil Dani, Richard Suk
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Patent number: 7932192Abstract: A substrate for artificial leathers, comprising a nonwoven fabric body made of microfine fiber bundles and an elastic polymer impregnated therein. The substrate for artificial leathers simultaneously satisfies the following requirements 1 to 4: (1) each of the microfine fiber bundles contains 6 to 150 bundled microfine long fibers in average; (2) a cross-sectional area of the microfine long fibers constituting the microfine fiber bundles is 27 ?m2 or less, and 80% or more of the microfine long fibers has a cross-sectional area of from 0.9 to 25 ?m2; (3) an average cross-sectional area of the microfine fiber bundles is from 15 to 150 ?m2; and (4) on a cross section parallel to a thickness direction of the nonwoven fabric body, cross sections of the microfine fiber bundles exist in a density of from 1000 to 3000/mm2 in average.Type: GrantFiled: December 13, 2006Date of Patent: April 26, 2011Assignee: Kuraray Co., Ltd.Inventors: Michinori Fujisawa, Jiro Tanaka, Tsuyoshi Yamasaki, Norio Makiyama, Yoshiyuki Ando
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Patent number: 7928025Abstract: Thermal compression moldable nonwoven multilayered fibrous batts having substantially uniform density are provided, which are useful, for example, for fabrication of multi-density molded parts, such as multi-density molded vehicle liners. The nonwoven multilayered fibrous batts of uniform density comprising needle-punched first and second (and optionally third and/or fourth) fibrous batt layers formed with different fiber blends, wherein the multilayered batt can be molded into acoustical parts having multi-densities.Type: GrantFiled: October 1, 2008Date of Patent: April 19, 2011Assignee: Polymer Group, Inc.Inventors: Gale Shipley, Anna Jean Sill, Stephen Foss
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Publication number: 20110070794Abstract: A nonwoven sheet material and method of construction thereof is provided. The nonwoven sheet material includes a heat bondable textile material and a used post consumer material. The used post consumer material includes at least one of a non-thermoplastic material, thermoplastic material, a plastic composition including different types of plastic constituents, and other materials containing contaminants such as dirt, oil, grease and the like in a non-washed state, which are ordinarily considered non-reusable waste. The used post consumer material is bonded with the heat bondable textile material to form the nonwoven sheet material and panels formed therefrom.Type: ApplicationFiled: June 24, 2010Publication date: March 24, 2011Inventors: Harry F. Gladfelter, Christopher A. Foy, David Briggs, Eric K. Staudt
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Patent number: 7892992Abstract: Readily-fibrillable fibers of PVA polymer, having good chemical resistance, hydrophilicity, weather resistance and water resistance have a flattened cross-sectional profile and have a mean thickness D (?m) that satisfies the following formula (1): 0.4?D?5??(1) wherein D=S/L; S indicates the cross-section area (?m2) of the fibers; and L indicates the length (?m) of the major side of the cross section of the fibers. The fibers can be used for making nonwoven fabrics.Type: GrantFiled: March 10, 2004Date of Patent: February 22, 2011Assignee: Kuraray Co., Ltd.Inventors: Hideki Kamada, Tomohiro Hayakawa
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Publication number: 20110034100Abstract: In at least one aspect of the present disclosure, a field durable, repeatably launderable nonwoven fabric is provided including a cross-lapped and needle punched nonwoven fabric that is bonded together by entangling fibers with hydroentanglement.Type: ApplicationFiled: July 12, 2010Publication date: February 10, 2011Inventors: Vasanthakumar Narayanan, Gary L. Arinder
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Patent number: 7833918Abstract: A substantially dry, water-activated cleaning article is described that comprises a two-layer nonwoven substrate impregnated with a cleaning composition minimally comprising a nonionic surfactant and a microbially-derived polysaccharidic polymer.Type: GrantFiled: January 14, 2009Date of Patent: November 16, 2010Assignee: The Dial CorporationInventors: Deirdre M. Gormley, Priti Das, Aleidatje M. Lester, Kevin Hafer
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Patent number: 7820568Abstract: A leather-like sheet excellent in repulsive feeling is provided by a leather-like sheet substantially including a fibrous material which is a leather-like sheet in which a staple fiber nonwoven fabric (A) in which ultra-fine fibers of an average single fiber fineness of 0.0001 to 0.5 dtex and an average fiber length of 1 to 10 cm are entangled with each other and a woven or knitted fabric (B) including a conjugate fiber in which two or more polyesters are disposed in side-by-side or eccentric sheath-core relationship are laminated.Type: GrantFiled: August 1, 2005Date of Patent: October 26, 2010Assignee: Toray Industries, Inc.Inventors: Tomoyuki Horiguchi, Kentaro Kajiwara, Satoru Shimoyama
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Patent number: 7811950Abstract: A polyester filament nonwoven ply is suitable for roofing and roof-sealing webs and has a latent shrinkage force which counteracts drafting forces which may subsequently occur as the result of stresses or during thermal processing operations. The roofing webs thus remain dimensionally stable even when exposed to heat. The shrinkage force is obtained according to the claimed process by drafting the ply accordingly in a drafting mechanism arranged after a dryer.Type: GrantFiled: October 25, 2004Date of Patent: October 12, 2010Assignee: Johns ManvilleInventors: Wolfgang Greiser, Roger Souther, Bertrand Weiter
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Patent number: 7803725Abstract: A pliable reinforcement carrier membrane for use in a coated membrane composite includes a pliable non-woven fibrous mat of entangled polymeric fibers and a hydrophobic binder. The membrane is made so that a first surface of the mat has portions of a portion of the polymeric fibers of the mat protruding therefrom in extent and in sufficient amounts to give the first surface of the mat a fuzzy characteristic to facilitate adhesion of a coating material and a second surface of the fibrous mat has a generally smooth, non-fuzzy surface. A pliable waterproof composite, including the membrane, has a bottom surface formed by a filled asphalt, modified bitumen, or non-asphaltic polymeric coating that overlies and is adhered to the first surface of the mat to provide a barrier against liquid water transmission through the composite and a top surface formed by the second surface of the mat.Type: GrantFiled: January 23, 2007Date of Patent: September 28, 2010Assignee: Johns MansvilleInventors: Stephen Richard Payne, Albert George Dietz, III
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Patent number: 7794737Abstract: This invention concerns extrudates having high surface area materials and at least one metal ion adsorbed onto the high surface area material. The extrudates may be breathable films, multilayer laminates and pultruded articles. The extrudates may be made into storage and packaging material to reduce odor and retard the ripening of fruit. The extrudates, if in the form of a breathable film or multilayer laminate may be used as outer cover material for personal care products like diapers, adult incontinence products, training pants and the like. The high surface area particle-containing extrudate may be made by adding modified nanoparticles to a filler before the filler is treated with a fatty acid. Alternatively, a filler previously treated with a fatty acid may be modified by subjecting the filler to sonic energy in the presence of an aqueous solution of metal ions and nanoparticles.Type: GrantFiled: October 16, 2003Date of Patent: September 14, 2010Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Jeffrey Eldon Fish, Sharon Linda Greene, John Gavin MacDonald, Jaeho Kim
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Patent number: 7790643Abstract: A reinforcing material for urethane foam effectively protects a molded urethane foam body and suppresses fricatives with a metal spring, having high productivity and excellent handleability and being applicable to a molded urethane foam body with highly uneven shape at low cost. It is a reinforcing material for urethane foam wherein a nonwoven fabric A having single fiber linear density of 1.0 to 3.0 dtex and a nonwoven fabric B having single fiber linear density of 0.5 to 2.5 dtex are laminated by needlepunching process by inserting needles from a direction of the nonwoven fabric A with a needle density of 35 to 70 needles/cm2.Type: GrantFiled: June 14, 2007Date of Patent: September 7, 2010Assignee: Toyo Boseki Kabushiki KaishaInventors: Kazunori Kanda, Kazuhiro Teramae, Toshiya Yamamoto
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Patent number: 7772143Abstract: The invention relates to a multilayer, composite, fleece material having a core layer and at least one cover layer attached to the core layer, where the at least one cover layer is needled with the core layer such that fibers of the at least one cover layer protrude into the core layer. The multilayer, composite, fleece material is intended for use in the manufacture of interior panels of vehicles and to have improved mechanical properties, low thermal conductivity, very low tendency to produce emissions, and good acoustic properties when used for that purpose, as well as enable its inexpensive manufacture.Type: GrantFiled: September 12, 2007Date of Patent: August 10, 2010Assignee: Sandler AGInventors: Stefan Hermann, Wolfgang Höflich
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Patent number: 7745681Abstract: A fabric comprises first and second webs of gel-forming fiber needled to the first and second sides respectively of a textile fiber scrim. Such fabrics find application as wound dressings, in particular for packing cavity wounds.Type: GrantFiled: June 21, 1999Date of Patent: June 29, 2010Assignee: ConvaTec LimitedInventor: Paul John Ferguson
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Patent number: 7745358Abstract: A nonwoven fabric having abrasion resistance and absorbency suitable for cleaning printer cylinders, especially textured or rough printer cylinders, is formed by hydroentangling a fibrous nonwoven web formed from higher-melting polyester base fibers and lower-melting binder fibers, and then thermally bonding the fabric.Type: GrantFiled: February 17, 2006Date of Patent: June 29, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Thomas Edward Benim, Jaime Marco Vara Salamero
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Publication number: 20100130086Abstract: Disclosed herein is a reflectively patterned, fibrous, sided nonwoven material comprising a first set of fibers hydraulically needled with a web of a second set of fibers, the first set of fibers primarily containing short fibers and the second set of fibers primarily containing one of (a) substantially continuous filaments, (b) long fibers, and (c) short fibers having an average fiber length at least twice the average fiber length of the first set of fibers. The material has a first surface predominately comprising the first set of fibers and an opposing second surface predominately comprising the second set of fibers. A method of patterning a sided nonwoven web and a reflectively patterned, sided nonwoven material also are disclosed.Type: ApplicationFiled: February 15, 2008Publication date: May 27, 2010Inventors: Kyra Dorsey, Gordon D. Meikle
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Patent number: 7718555Abstract: A fabric for chemical protective garments having at least two multilayered film laminates separated by a scrim forming a barrier chamber. The laminates are sandwiched between films of linear low density polyethylene and contain a different film from each other selected from ethyl vinyl alcohol, polyethylene terephthalate and polyamide. There is also the garment prepared with the fabric.Type: GrantFiled: September 28, 2006Date of Patent: May 18, 2010Assignee: Lakeland Industries IncInventors: W. Novis Smith, Charles Roberson
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Publication number: 20100119795Abstract: The invention concerns a process for preparing a complex sheet comprising a layer of drylaid glass fibres and a layer of organic fibres, comprising: mechanical needling or fluid entanglement, e.g. hydroentanglement, of a nonwoven fabric of continuous organic fibres and of a veil of non-preconsolidated continuous glass fibres, the said nonwoven fabric of organic fibres and the said veil of glass fibres being juxtaposed and the said needles respectively the fluid, water jets being sent from the same side as the nonwoven fabric of organic fibres, in order to make a sheet; and then application of a binder to the bilayer. The so obtained complex fibrous structure shows a low tendency to delaminate and can be impregnated with asphalt or bitumen, and used in the field of roofing, sealing covering or membranes.Type: ApplicationFiled: January 15, 2010Publication date: May 13, 2010Applicant: SAINT-GOBAIN TECHNICAL FABRICS EUROPEInventors: Michel DROUX, Marc Berkhoff, Leonardus Lucas, Eric Daniel
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Publication number: 20100081354Abstract: Thermal compression moldable nonwoven multilayered fibrous batts having substantially uniform density are provided, which are useful, for example, for fabrication of multi-density molded parts, such as multi-density molded vehicle liners. The nonwoven multilayered fibrous batts of uniform density comprising needle-punched first and second (and optionally third and/or fourth) fibrous batt layers formed with different fiber blends, wherein the multilayered batt can be molded into acoustical parts having multi-densities.Type: ApplicationFiled: October 1, 2008Publication date: April 1, 2010Applicant: POLYMER GROUP, INC.Inventors: Gale Shipley, Anna Jean Sill, Stephen Foss
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Patent number: 7687415Abstract: An elastic composite having a high tearing strength made of an elastomeric material and a consolidated entangled web, wherein the consolidated entangled fabric has at least 2 lbs of tearing strength in the machine direction and the composite has 70-95% elastic recovery from a 100% elongation in the cross direction and greater than 50% elastic recovery from a 150% elongation in the cross direction.Type: GrantFiled: August 9, 2006Date of Patent: March 30, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: De-Sheng Tsai, Thomas Edward Benim, Marcio B. Amorosino
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Patent number: 7678719Abstract: The present invention relates to a method for forming a bi-layered carpet underlay. More particularly, the method includes bonding a layer of non-woven fibers and a layer of re-bonded foam particles together to form the bi-layered carpet underlay. The layers of the carpet underlay can be bonded together with the use of adhesives, by heating a surface of one or both layers to a soft bondable state for lamination between the layers, by applying a film having adhesive surfaces between the layers, or by other suitable bonding means. The bi-layered carpet underlay combines the soft cushioning resilience of foam with the high durability bridging ability of fiber to provide a carpet underlay that maintains its height or thickness and firmness, while imparting softness and cushioning effects over an extended period of wear.Type: GrantFiled: September 20, 2007Date of Patent: March 16, 2010Assignee: L&P Property Management CompanyInventors: Steven Eugene Ogle, Karl Lee Van Becelaere
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Patent number: 7674732Abstract: A felt for papermaking which is less prone to be crushed during operation of high speed paper machine, promptly begins stable papermaking after starting the machine, assures durability, and maintains surface smoothness.Type: GrantFiled: June 14, 2005Date of Patent: March 9, 2010Assignee: Ichikawa Co., Ltd.Inventor: Yoshiaki Ito
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Patent number: 7659219Abstract: The present invention is directed to implantable bioabsorbable non-woven self-cohered web materials having a high degree of porosity. The web materials are very supple and soft, while exhibiting proportionally increased mechanical strength in one or more directions. The web materials often possess a high degree of loft. The web materials can be formed into a variety of shapes and forms suitable for use as implantable medical devices or components thereof. The web materials possess haemostatic properties.Type: GrantFiled: January 30, 2006Date of Patent: February 9, 2010Assignee: Gore Enterprise Holdings, Inc.Inventors: Roy Biran, Edward H. Cully, Ted R. Farnsworth, Charles Flynn, Philip P. Off, Charles F. White
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Patent number: 7655584Abstract: The present invention is directed to implantable bioabsorbable non-woven self-cohered web materials having a very high degree of porosity. The web materials are very supple and soft, while exhibiting proportionally increased mechanical strength in one or more directions. The web materials often possess a high degree of loft. The web materials can be formed into a variety of shapes and forms suitable for use as implantable medical devices or components thereof. In some embodiments, the web materials exhibit significant thrombogenic properties.Type: GrantFiled: July 29, 2005Date of Patent: February 2, 2010Assignee: Gore Enterprise Holdings, Inc.Inventors: Roy Biran, Edward H. Cully, Ted R. Farnsworth, Charles Flynn, Charles F. White
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Patent number: 7641962Abstract: Rigid, non-woven fibre panels that are used as privacy screens, partitioning, room dividers or as workstation surrounds, for example, are described. The panels are strong and may be self supporting, have good acoustic properties, and preferably have a substantially smooth surface. They are made from a single, substantially homogeneous, layer of polyethylene terephthalate (PET) fibres, of which a substantial proportion may be of recycled PET. The panels are generally produced by mixing PET fibres into a web, which is then carded, cross-lapped, needle punched, calendered and thermally bonded, preferably using a heated roller.Type: GrantFiled: August 7, 2006Date of Patent: January 5, 2010Assignee: Woven Image Pty Ltd.Inventor: Tony Sutton
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Patent number: 7632766Abstract: An insulating fabric which substantially prevents propagation of fire uses a blend of modified aluminum oxide-silica fibers and organic fibers in a multi-layer blanket.Type: GrantFiled: May 4, 2007Date of Patent: December 15, 2009Assignee: Tex Tech Industries, Inc.Inventors: David F. Erb, Jr., Robert A. Gravel, Eric D. Ritter, Eric A. Barter
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Publication number: 20090305595Abstract: A sound absorbing fiber sheet, the ventilation resistance of which is in the range of between 0.08 and 3.00 kPa·s/m, is provided in the present invention, the sound absorbing fiber sheet being laminated onto a fiber base sheet to be a laminated fiber sheet having a good sound absorbing property even with the fiber base sheet having a small unit weight, and said laminated sheet may be molded into a desirable shape.Type: ApplicationFiled: June 18, 2007Publication date: December 10, 2009Inventors: Masanori Ogawa, Tsuyoshi Watanabe, Makoto Fujii
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Patent number: 7622408Abstract: The present invention is directed to multiple layer composites suitable for use as wall and floor coverings, among other uses, that provide a strong durable structure and a soft textile or fabric face. The composite includes a face layer bonded to an adhesive layer such that the adhesive layer penetrates into the face layer. The face layer can have legs extending there from, and such legs are anchored by the adhesive layer to provide stronger attachment between the adhesive layer and the face layer. A backing layer may also be provided in contact with the adhesive layer such that the adhesive layer also embeds into the backing layer, and the legs extending from the face layer may penetrate into the backing layer.Type: GrantFiled: July 1, 2003Date of Patent: November 24, 2009Assignee: DZS, LLCInventor: Dimitri Peter Zafiroglu
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Patent number: 7618508Abstract: A laminate consisting of at least three layers, one layer of the laminate being formed by at least one nonwoven web made from continuous filaments. This is a nonwoven web thermally hardened by means of the effect of a hot fluid. A further layer of the laminate is disposed both on the upper side and on the lower side of the nonwoven web and connected securely to the nonwoven web.Type: GrantFiled: November 23, 2005Date of Patent: November 17, 2009Assignee: Reifenhaeuser GmbH & Co. KG MaschinenfabrikInventors: Sebastian Sommer, Detlef Frey, Jens Guedden
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Patent number: 7601414Abstract: The invention relates to an inherently flame resistant (FR) stitchbonded nonwoven fabric for mattresses, boxsprings, upholstered furniture, top-of-the-bed, office panel, transportation seating or any end use application where a FR textile material is desired. Two of the preferred forms of this invention include: 100% cotton. 100% rayon, 100% lyocell, cotton/non-FR fiber blends, rayon/non-FR fiber blends or lyocell/non-FR fiber blend battings that are stitchbonded with flame resistant fiberglass core-spun yarn. 100% cotton, 100% rayon, 100% lyocell, cotton/non-FR fiber blends, rayon/non-FR fiber blends or lyocell/non-FR fiber blend battings that are stitchbonded with FR spun yarn.Type: GrantFiled: September 7, 2007Date of Patent: October 13, 2009Assignee: Sumlin Holdings, Inc.Inventors: Alan C. Handermann, Bob McKinnon, Frank J. Land
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Publication number: 20090247037Abstract: The present invention provides a reinforcing material for urethane foam which effectively protects a molded urethane foam body and suppresses fricatives with a metal spring, having high productivity and excellent handleability and being applicable to a molded urethane foam body with highly uneven shape at low cost. It is a reinforcing material for urethane foam wherein a nonwoven fabric A having single fiber linear density of 1.0 to 3.0 dtex and a nonwoven fabric B having single fiber linear density of 0.5 to 2.5 dtex are laminated by needlepunching process by inserting needles from a direction of the nonwoven fabric A with a needle density of 35 to 70 needles/cm2.Type: ApplicationFiled: June 14, 2007Publication date: October 1, 2009Applicant: Toyo Boseki Kabushiki KaishaInventors: Kazunori Kanda, Kazuhiro Teramae, Toshiya Yamamoto
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Patent number: 7595021Abstract: A disinfectant delivery system and method of providing alcohol-free disinfection to a body to be disinfected, as well as a method of infection reduction by preparation of a patient before an invasive procedure. A blended cloth comprising first fibers and second fibers is provided with the first fibers generally being greater in quantity by weight than the second fibers. A disinfectant solution impregnates the blended cloth, with the disinfectant solution having chlorhexidine gluconate as an active ingredient and having no alcohol. In the method according to the invention, at least one impregnated blended cloth is used to disinfect at least a portion of a body. A plurality of blended cloths can be provided for disinfecting discrete portions of the body.Type: GrantFiled: August 21, 2006Date of Patent: September 29, 2009Assignee: Sage Products, Inc.Inventors: Thomas Keaty, Jr., Ram Chakroborty, Jennifer M. Allen, Ajay Chawla, Robert J. Panek, Jr., Paul H. Hanifl
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Patent number: 7589037Abstract: The invention relates to slickened or siliconized flame resistant fiber blends that are well suited for use in mattresses, boxsprings, upholstered furniture, fiber-filled bed clothing, transportation seating or any end use application where a soft materials are desired for flame resistant (FR) purposes. Some of the fibers in the blend are slickened. The FR fibers incorporated into these blends include both char forming FR fibers and oxygen depleting FR fibers. FR char-forming fibers are those which exhibit little shrinkage when exposed to direct flame and are not spun from polymers manufactured with halogenated monomers. Oxygen depleting FR fibers are spun from polymers manufactured with halogenated monomers.Type: GrantFiled: January 12, 2006Date of Patent: September 15, 2009Assignee: Basofil Fibers, LLCInventors: Alan C. Handermann, Scott A. Bridges
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Publication number: 20090176422Abstract: This invention generally relates to the production of a composite yarn or non-woven strand wherein a core of super absorbent polymer fibers (SAP's) having a swell factor of approximately 250% and greater are encapsulated by a nonwoven membrane of defined porosity. The membrane is then sealed in a fashion to generally deter or prevent the SAP material from migrating out of the core as water is freely absorbed and desorbed from the composite yarn structure. The strands of yarns or strips of non-woven material are subsequently constructed into an open or unorientated fabric formation. When used as a subterranean fabric, structure or material, the resultant fabric structure retains moisture while permitting normal root growth and allowing excess water to pass through and beneath the fabric while facilitating movement of water from lower levels to the surface.Type: ApplicationFiled: March 16, 2009Publication date: July 9, 2009Inventor: Gilbert Patrick
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Patent number: 7547469Abstract: Loop materials are provided for touch fastening. Some loop materials include a flexible sheet-form substrate, and hook-engageable fibers secured individually and directly to the substrate, the fibers being disposed in discrete fastening regions of the substrate, leaving fiber-free substrate between adjacent fastening regions. Methods of making and using such loop materials are also provided.Type: GrantFiled: April 8, 2005Date of Patent: June 16, 2009Assignee: Velcro Industries B.V.Inventors: George A. Provost, James R. Barker
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Publication number: 20090123700Abstract: A garment includes a breathable composite fabric between outer and inner fabric layers. The breathable composite fabric comprises two nanofiber web layers and a porous fluid drainage layer disposed therebetween.Type: ApplicationFiled: March 11, 2008Publication date: May 14, 2009Inventors: Jill A. Conley, Robert Anthony Marin
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Patent number: 7521386Abstract: A moldable heat shield with a needled nonwoven core layer and needled nonwoven shell layers. The core layer has a blend polyester staple fibers and low melt polyester staple fibers. The shell layers have a blend of staple fibers of partially oxidized polyacrylonitrile, and staple fibers of polyester, and staple fibers of a low melt polyester. The layers are needled together such that fibers from the core layer do not reach the outer surfaces of the shell layers. The shell layers are calendared such that an outer surface layer is formed thereon, which provides the moldable heat shield with a water and oil resistant surface.Type: GrantFiled: February 7, 2004Date of Patent: April 21, 2009Assignee: Milliken & CompanyInventors: David Edward Wenstrup, Gregory J. Thompson, Timothy Mitchell Meade
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Patent number: 7501362Abstract: The invention relates to nonwoven composite elements in which a blended fiber nonwoven comprised of thermoplastic fibers and of reinforcing fibers having a high-melting point is joined on one or both sides to one or two composite films of the structure ba or bab, in which a is a thermoplastic material having a high-melting point and b is a thermoplastic material having a low-melting point, and layer b of the composite film(s) faces the blended fiber nonwoven.Type: GrantFiled: March 24, 2004Date of Patent: March 10, 2009Assignee: Quadrant Plastic Composites AGInventor: Walter Maier
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Patent number: 7501364Abstract: The present invention provides a non-woven felt material that includes a blend of cotton shoddy and synthetic fibers, and a method of making the same. The blend of cotton shoddy and synthetic fibers is carded and needled to form a batt. The batt is compacted and unified into its stable final shape by heating and soft-pressing, which causes at least a portion of the synthetic fibers to soften and/or melt and thereby bond the needled cotton shoddy and synthetic fibers together. The non-woven felt material according to the invention is strong, tear resistant, yet provides a non-slip, cushioned walking surface that readily absorbs and contains spilled oils, water and/or glycols.Type: GrantFiled: November 29, 2006Date of Patent: March 10, 2009Assignee: Bouckaert Industrial Textiles, Inc.Inventors: Thomas V. Bouckaert, Richard A. Leroux
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Patent number: 7493679Abstract: A method is provided for forming a relatively thick, lightweight, nonwoven insulating mat. The method includes the steps of forming a relatively thin, relatively dense first outer layer by needle punching a first batt of glass fibers and forming a relatively thin, relatively dense second outer layer by needle punching a second batt of glass fibers. A relatively thicker, relatively less dense intermediate batt of glass fibers is fed between the first and second layers. Thereafter, the first layer, intermediate batt, and second layer are needle punched together to form a multi-layer mat having a first layer, middle layer, and second layer.Type: GrantFiled: April 28, 2006Date of Patent: February 24, 2009Assignee: BGF Industries, Inc.Inventor: Roger L. Meadows
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Patent number: 7491438Abstract: A layered textile composite product is disclosed which may include a nonwoven needled layer. The nonwoven needled layer is comprised of mechanically interlocked staple fibers which are needled together on a needle punch machine and then bonded with an adhesive layer to a polymeric or polyolefin film layer. The overall layered textile product may be used in several different applications, including for example in automobiles for seating, load floor, trunk linings, floor carpeting, door panel trim, and other interior trim applications.Type: GrantFiled: July 11, 2003Date of Patent: February 17, 2009Assignee: Milliken & CompanyInventors: Roy Phillip Demott, Tim Meade, Jim Porterfield
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Patent number: 7485592Abstract: This invention relates to a bag filter having a tubular section, one closed end and one open end, the tubular section having a nonwoven felt comprising an intimate fiber blend of 50 to 80 parts by weight polyphenylene sulfide fiber and 20 to 50 parts by weight acrylic fiber, based on the total weight of polyphenylene sulfide and acrylic fibers in the felt, wherein the acrylic fiber has an equal or lower denier per filament than the polyphenylene sulfide fiber.Type: GrantFiled: September 13, 2006Date of Patent: February 3, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Anil Kohli, Herman Hans Forsten, Kurt Hans Wyss
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Publication number: 20090029096Abstract: A surface covering such as a lay flat flooring product having an upper show surface disposed in overlying relation to a single or multi-layer, preferably flexible, heavy, thin, resilient backing. A fibrous backing sheet may be disposed across an underside of the backing. The surface covering may be, for example, a tile or roll goods. The show surface may be a decorative textile or carpet layer.Type: ApplicationFiled: December 21, 2006Publication date: January 29, 2009Inventor: Dennis L. Riddle
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Publication number: 20090017711Abstract: In the production of a solidified nonwoven web by crosslaying a card web produced with a uniform transverse profile by a card web forming device and then by consolidating the crosslaid nonwoven web thus formed, the basis weight of the solidified nonwoven web or of the crosslaid nonwoven web is measured only in the middle and in the area of at least one of its edges, and the basis weight of the card web to be laid is locally changed on the basis of a comparison of the measurement values with the nominal values preestablished by the laws, previously described for the nonwoven web to be produced, governing the structural change in the product caused by solidifying.Type: ApplicationFiled: June 30, 2008Publication date: January 15, 2009Applicant: OSKAR DILO MASCHINENFABRIK KGInventor: Johann P. Dilo
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Patent number: 7456120Abstract: This invention relates to a bag filter having a tubular section, one closed end and one open end, the tubular section having a nonwoven felt comprising an intimate fiber blend of 50 to 80 parts by weight meta-aramid fiber and 20 to 50 parts by weight acrylic fiber, based on the total weight of meta-aramid and acrylic fibers in the felt, wherein the acrylic fiber has an equal or lower denier per filament than the meta-aramid fiber.Type: GrantFiled: September 13, 2006Date of Patent: November 25, 2008Assignee: E. I. du Pont de Nemours and CompanyInventors: Anil Kohli, Herman Hans Forsten, Kurt Hans Wyss
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Patent number: 7432219Abstract: An improved hydroentangled well integrated composite nonwoven material, including a mixture of continuous filaments, synthetic staple fibers, and natural fibers which has a reduced twosidedness and an improved textile feeling. The synthetic staple fibers should have a length of 3 to 7 mm, and preferably there should be no thermal bondings between the filaments. The method of producing such a nonwoven material is also disclosed. The nonwoven includes a mixture of 10-50 w-% continuous filaments preferably chosen from polypropylene, polyesters and polylactides, 5-50 w-% synthetic staple fibers chosen from polyethylene, polypropylene, polyesters, polyamides, polylactides, rayon, and lyocell, and 20-85 w-% natural fibers, preferably pulp.Type: GrantFiled: November 1, 2004Date of Patent: October 7, 2008Assignee: SCA Hygiene Products ABInventors: Mikael Strandqvist, Anders Stralin, Lars Fingal, Hannu Ahoniemi
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Patent number: 7427574Abstract: A non-woven washcloth formed from a blend of two different size polyester fibers, the majority of which have a length about half of that of the minority. The washcloth has good absorbing and holding properties for a solution containing chlorhexidine gluconate, while also releasing said chlorhexidine gluconate when wiped on skin.Type: GrantFiled: August 19, 2005Date of Patent: September 23, 2008Assignee: Sage Products, Inc.Inventor: Jennifer Allen
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Publication number: 20080173396Abstract: A liner for repairing damaged pipes, such as underground sewer or gas pipes is disclosed. The liner comprises a TPU coating on a fibrous mat of non-woven fabric. The TPU coating is a high heat resistance polyester TPU which allows an epoxy resin/amine to be saturated in the non-woven fabric and the cure initiated by the use of steam or hot water. The cured epoxy resin converts the liner from a flexible state to a rigid state as the liner is cured in place inside the pipe. The TPU containing liner may also be used with thermoset resins other than epoxy resins, such as polyester resins and vinyl ester resins.Type: ApplicationFiled: January 17, 2008Publication date: July 24, 2008Applicant: LUBRIZOL ADVANCED MATERIALS, INC.Inventor: Robert J. Wiessner
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Publication number: 20080168636Abstract: The invention relates to a suction device for liquids in hydroentangling machines, in which more than one water bar, which generate jets of liquid, are allocated to the exterior of the suction device. The suction device consists of a suction tube comprising one or more axial suction openings for each water bar, said openings being located along the working length of the tube. The liquid is sucked from the allocated water bar through said openings as a result of the negative pressure that is created in the tube. According to the invention, the suction openings that extend over the entire working width are configured to be sealed in relation to each respectively allocated water bar.Type: ApplicationFiled: November 4, 2004Publication date: July 17, 2008Inventors: Ullrich Münstermann, Roland Schweizer
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Publication number: 20080166938Abstract: A nonwoven felt formed from fluoropolymer film, which is split and fibrillated to form a network structure, and then entangled.Type: ApplicationFiled: January 6, 2008Publication date: July 10, 2008Applicant: TEADIT INDUSTRIA E COMERCIO LTDA.Inventors: Marcello Cattaneo ADORNO, Jose Antonio de Almeida NETO