Containing Polymeric Strand Or Fiber Material Patents (Class 442/407)
  • Patent number: 8999868
    Abstract: A non-woven product containing organic and/or mineral particles has a volume density less than 1 and has at least two layers of synthetic fibers or filaments superposed in the Z direction perpendicular to the XY plane of the product, having undergone at least one needling operation, where the non-woven product integrates particulate feedstocks of mineral and/or organic particles distributed in a monomodal or multimodal manner in the product and at least partially coated or encapsulated by binding material that can point-connect the filaments or fibers to one another. At least one population or fraction of organic and/or mineral particles, has a size such that: 3×(?{square root over (SMf)})3?v, preferably 5×(?{square root over (SMf)})3?v, where SMf corresponds to the mean cross-section of the fibers or filaments that form the layers, and v represents the mean individual volume of the organic or mineral particles.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: April 7, 2015
    Assignee: Freudenberg Politex SA (Societe Anonyme)
    Inventors: Frédéric Rosé, Georges Riboulet, Massimo Migliavacca, Jean-Marc Losser, Robert Groten
  • Publication number: 20140272349
    Abstract: The present invention refers to an article made of a multilayer composite material comprising a central element (I) arranged between a first and a second reinforcement layer (B) to form a structure (B)-(I)-(B), said central element (I) comprising: a first and a second structural layer (A) each comprising at least one mat of needle punched fibres of the thermoplastic and/or natural type or else a mat of expanded thermoplastic polymer, said structural layers (A) being impregnated with a thermosetting resin; a third reinforcement layer (B) arranged between said two structural layers (A), said first, second and third reinforcement layer (B) consisting of a fibrous material, comprising one or more types of fibres selected from the group consisting of glass fibres, natural fibres, carbon fibres, basalt fibres, kevlar fibres, aramid fibres or a mixture of such fibres.
    Type: Application
    Filed: October 31, 2011
    Publication date: September 18, 2014
    Applicant: INDUSTRIALESUD S.P.A.
    Inventors: Giuseppe Di Sante, Mario Biggio, Mario Di Paolantonio, Gianluca Giovine
  • Patent number: 8513145
    Abstract: A filler cloth includes cellulosic fibers treated with a flame retardant chemistry such that the filler cloth has a char length of less than about nine inches when tested in accordance with NFPA 701, such that thermal shrinkage of the filler cloth at 400° F. is less than about 35% in any direction, and such that the filler cloth maintains flame and heat resistant integrity when impinged with a gas flame in accordance with testing protocols set forth in Technical Bulletin 603 of the State of California Department of Consumer Affairs. The filler cloth cellulosic fibers are treated with a flame retardant chemistry such that the filler cloth has a Frazier air permeability of less than about 400 cfm and a thermal resistance rating of at least about 3 when tested according to NFPA 2112.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: August 20, 2013
    Assignee: Precision Fabrics Group, Inc.
    Inventors: Melanie Pearce Jones, James Douglas Small, Jr., John H. Walton, Alfred Frank Baldwin, Jr., Zareh Mikaelian, William Scott Kinlaw
  • Patent number: 8440582
    Abstract: A filler cloth includes cellulosic fibers treated with a flame retardant chemistry such that the filler cloth has a char length of less than about nine inches when tested in accordance with NFPA 701, such that thermal shrinkage of the filler cloth at 400° F. is less than about 35% in any direction, and such that the filler cloth maintains flame and heat resistant integrity when impinged with a gas flame in accordance with testing protocols set forth in Technical Bulletin 603 of the State of California Department of Consumer Affairs. The filler cloth cellulosic fibers are treated with a flame retardant chemistry such that the filler cloth has a Frazier air permeability of less than about 400 cfm and a thermal resistance rating of at least about 3 when tested according to NFPA 2112.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: May 14, 2013
    Assignee: Precision Fabrics Group, Inc.
    Inventors: Melanie Pearce Jones, James Douglas Small, Jr., John H. Walton, Alfred Frank Baldwin, Jr., Zareh Mikaelian, William Scott Kinlaw
  • Patent number: 8435907
    Abstract: A filler cloth includes cellulosic fibers treated with a flame retardant chemistry such that the filler cloth has a char length of less than about nine inches when tested in accordance with NFPA 701, such that thermal shrinkage of the filler cloth at 400° F. is less than about 35% in any direction, and such that the filler cloth maintains flame and heat resistant integrity when impinged with a gas flame in accordance with testing protocols set forth in Technical Bulletin 603 of the State of California Department of Consumer Affairs. The filler cloth cellulosic fibers are treated with a flame retardant chemistry such that the filler cloth has a Frazier air permeability of less than about 400 cfm and a thermal resistance rating of at least about 3 when tested according to NFPA 2112.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: May 7, 2013
    Assignee: Precision Fabrics Group, Inc.
    Inventors: Melanie Pearce Jones, James Douglas Small, Jr., John H. Walton, Alfred Frank Baldwin, Jr., Zareh Mikaelian, William Scott Kinlaw
  • Patent number: 8236712
    Abstract: A filler cloth includes cellulosic fibers treated with a flame retardant chemistry such that the filler cloth has a char length of less than about nine inches when tested in accordance with NFPA 701, such that thermal shrinkage of the filler cloth at 400° F. is less than about 35% in any direction, and such that the filler cloth maintains flame and heat resistant integrity when impinged with a gas flame in accordance with testing protocols set forth in Technical Bulletin 603 of the State of California Department of Consumer Affairs. The filler cloth cellulosic fibers are treated with a flame retardant chemistry such that the filler cloth has a Frazier air permeability of less than about 400 cfm and a thermal resistance rating of at least about 3 when tested according to NFPA 2112.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: August 7, 2012
    Assignee: Precision Fabrics Group, Inc.
    Inventors: Melanie Pearce Jones, James Douglas Small, Jr., John H. Walton, Alfred Frank Baldwin, Jr., Zareh Mikaelian
  • Patent number: 7998889
    Abstract: An hydroentangled integrated composite nonwoven material, includes a mixture of randomized continuous filaments, and synthetic staple fibers, where there are no thermal bonding points between the continuous filaments. The nonwoven material exhibits a cumulative pore volume, measured by PVD in n-hexadecane, in the pore radius range 5-150 ?m, where at least 70% of the cumulative pore volume is in the pores with a pore radius above 45 ?m. The nonwoven material also exhibits a cumulative pore volume, which when the synthetic staple fibers are chosen from the group of polyethylene, polypropylene, polyester, polyamide, and polylactide staple fibers is at least 9 mm3/mg, and when the synthetic staple fibers are lyocell staple fibers is at least 6 mm3/mg.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: August 16, 2011
    Assignee: SCA Hygiene Products AB
    Inventors: Anders Stralin, Camilla Bemm, Mikael Strandqvist
  • Patent number: 7976655
    Abstract: Discarded or recycled carpets or other textiles can be converted into wood-like materials, in sheets comparable to plywood. The carpets or textiles are shredded, combed, and layered across a conveyor to form a low-density mat, which is compressed and needle-punched to create a cohesive but flexible mat. An adhesive is applied to at least one and preferably two or more mats, by an applicator that spreads a liquid prepolymer onto one or more surfaces of the mat(s). The mat(s) travel through a press while the adhesive cures and hardens, and the use of foaming adhesives can ensure uniform permeation through dense fiber mats. The hardened sheets can be sawed, nailed, and otherwise handled like wood, and are strong, durable, and highly resistant to damage by water or insects.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: July 12, 2011
    Assignee: Nyloboard, LLC
    Inventors: Forrest C. Bacon, Wendell R. Holland, Jesse D. Bacon
  • Publication number: 20110165397
    Abstract: A fire-resistant fabric is provided that comprises a non-woven batt comprising an intertwined first plurality of flame-resistant fibers. The fire-resistant fabric further comprises one or more stitching yarns engaging the non-woven batt in the form of stitches configured for binding the intertwined flame-resistant fibers into a stitch-bonded fabric. The one or more stitching yarns include a yarn comprising a second plurality of flame-resistant fibers. At least one of the first and second pluralities of flame-resistant fibers comprises partially oxidized PAN fibers.
    Type: Application
    Filed: January 6, 2011
    Publication date: July 7, 2011
    Inventors: Ray Roe, Brenda Marion, Jeff Siffert, Leon Green
  • Patent number: 7928025
    Abstract: 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: Grant
    Filed: October 1, 2008
    Date of Patent: April 19, 2011
    Assignee: Polymer Group, Inc.
    Inventors: Gale Shipley, Anna Jean Sill, Stephen Foss
  • Patent number: 7772143
    Abstract: 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: Grant
    Filed: September 12, 2007
    Date of Patent: August 10, 2010
    Assignee: Sandler AG
    Inventors: Stefan Hermann, Wolfgang Höflich
  • Publication number: 20100081354
    Abstract: 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: Application
    Filed: October 1, 2008
    Publication date: April 1, 2010
    Applicant: POLYMER GROUP, INC.
    Inventors: Gale Shipley, Anna Jean Sill, Stephen Foss
  • Patent number: 7674732
    Abstract: 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: Grant
    Filed: June 14, 2005
    Date of Patent: March 9, 2010
    Assignee: Ichikawa Co., Ltd.
    Inventor: Yoshiaki Ito
  • Patent number: 7659219
    Abstract: 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: Grant
    Filed: January 30, 2006
    Date of Patent: February 9, 2010
    Assignee: Gore Enterprise Holdings, Inc.
    Inventors: Roy Biran, Edward H. Cully, Ted R. Farnsworth, Charles Flynn, Philip P. Off, Charles F. White
  • Patent number: 7659218
    Abstract: A spunbonded elastic nonwoven fabric according to the invention comprises fibers formed from a polymer comprising a thermoplastic polyurethane elastomer, wherein the thermoplastic polyurethane elastomer has a starting temperature for solidifying of 65° C. or above as measured by a differential scanning calorimeter (DSC) and contains 3.00×106 or less polar-solvent-insoluble particles per g as counted on a particle size distribution analyzer, which is based on an electrical sensing zone method, equipped with an aperture tube having an orifice of 100 ?m in diameter, and wherein the fibers have diameters such that the standard deviation of fiber diameters (Sn) divided by the average fiber diameter (Xave) (Sn/Xave) gives a value of 0.15 or less.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: February 9, 2010
    Assignee: Mitsui Chemicals, Inc
    Inventors: Daisuke Nishiguchi, Kenichi Suzuki, Satoshi Yamasaki, Shigeyuki Motomura, Hisashi Kawanabe
  • Patent number: 7655584
    Abstract: 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: Grant
    Filed: July 29, 2005
    Date of Patent: February 2, 2010
    Assignee: Gore Enterprise Holdings, Inc.
    Inventors: Roy Biran, Edward H. Cully, Ted R. Farnsworth, Charles Flynn, Charles F. White
  • Patent number: 7655288
    Abstract: 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.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: February 2, 2010
    Assignee: Gore Enterprise Holdings, Inc.
    Inventors: Ann M. Bauman, Ted R. Farnsworth, Charles Flynn, Daniel S. Gabrys, Charles F. White
  • Patent number: 7641962
    Abstract: 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: Grant
    Filed: August 7, 2006
    Date of Patent: January 5, 2010
    Assignee: Woven Image Pty Ltd.
    Inventor: Tony Sutton
  • Patent number: 7589037
    Abstract: 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: Grant
    Filed: January 12, 2006
    Date of Patent: September 15, 2009
    Assignee: Basofil Fibers, LLC
    Inventors: Alan C. Handermann, Scott A. Bridges
  • Patent number: 7491438
    Abstract: 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: Grant
    Filed: July 11, 2003
    Date of Patent: February 17, 2009
    Assignee: Milliken & Company
    Inventors: Roy Phillip Demott, Tim Meade, Jim Porterfield
  • Patent number: 7465685
    Abstract: A filter material comprising at least one nonheatsealable ply and at least one heatsealable ply which comprises fibers of synthetic material and contains an adhesion promoter, and also processes for producing same.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: December 16, 2008
    Assignee: Glatfelter Gernsbach GmbH & Co. KG
    Inventors: Yves Le Brech, Günter Heinrich, Manfred Kauβen, Stefan Kuntz, Danny Meger
  • Patent number: 7135096
    Abstract: A press felt for use in the press section of a papermaking machine is provided. The press felt includes a base fabric layer and at least one layer of a staple fiber batt material connected thereto. The staple fiber batt material is includes between 20% to 100% by weight of a regenerated cellulosic staple fiber material, such as rayon, and from 80% to 0% by weight of a polymeric staple fiber, such as nylon. A scrim including regenerated cellulosic material can also be incorporated into the press felt construction, either between two layers of batt material, or between a batt layer and the base fabric. The regenerated cellulosic staple fibers of the batt and/or scrim having a dtex from at least about 1.1 to about 44, and are preferably non-fibrillatable. As a further option, at least a portion of the base fabric includes a regenerated celluliosic material.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: November 14, 2006
    Assignee: AstenJohnson, Inc.
    Inventors: Marc P. Despault, Brady S. Patterson
  • Patent number: 6942748
    Abstract: An elastomeric film is bonded between two or more layers of nonwoven webs formed of nonelastomeric thermoplastic fibers. The laminate has, in a predefined transverse direction, an elastic elongation value greater than the predefined elastic elongation value of the nonwoven webs, and an ultimate force to break in the predefined transverse direction of at least 3000 g/in. The laminate advantageously provides a tear resistant, multiple ply, fabric that is soft to the touch as a result of the outwardly disposed nonwoven webs, and has a high elastic modulus. The laminate is particularly useful in applications where closure portions of a product must be stretched to keep the product in place when worn.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: September 13, 2005
    Assignee: Tredegar Film Products Corporation
    Inventors: James W. Cree, Jeffrey A. Middlesworth, Stephen D. Bruce
  • Patent number: 6900147
    Abstract: A neckable nonwoven web is provided with a central region and two edge regions, the central region being selectively easier to neck than the two edge regions. The nonwoven fibers in the central region have a polymer composition and/or physical properties which differ from the nonwoven fibers in the two edge regions. The selectively easier necking in the central region causes the central region to neck to about the same extent as the two edge regions, which otherwise would experience greater necking than the central region if the starting nonwoven web were completely uniform. Necked nonwoven webs and neck-bonded laminates made using the improved neckable nonwoven web, are also provided.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: May 31, 2005
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Michael T. Morman, Charles J. Morell
  • Patent number: 6874282
    Abstract: A system for utilizing a hazardous apparatus with a pad of fibrous fabric embedded in cement to shield a protectable surface from hazards produced by the hazardous apparatus.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: April 5, 2005
    Assignee: Diversitech Corporation
    Inventors: Jeff S. Sweeney, Raymond E. Shelor
  • Publication number: 20040224589
    Abstract: A method is disclosed for using discarded carpet segments or other recycled textiles to make wood-like material in sheets that are comparable to plywood. The carpet segments or other recycled materials are shredded, then layered across a slow-moving conveyor to form a thick, low-density belt of fibers. This belt is compressed between rollers, and then needle-punched, using needles with surface barbs that pull fibers downward and upward. This needle-punching causes fibers inside the mat to be pulled into vertical alignment (i.e., perpendicular to the top and bottom surfaces of a horizontal mat), to form a needle-punched mat that will hold together without chemical adhesives. A binder material is then applied to at least one and possibly both surfaces of the mat, by means such as spreading or spraying a liquid binder on either or both surfaces of the mat, or stretching a continuous film of the binder material across either or both surfaces of the mat.
    Type: Application
    Filed: October 31, 2002
    Publication date: November 11, 2004
    Inventors: Forrest C. Bacon, Wendell R. Holland, Jesse D. Bacon
  • Patent number: 6809047
    Abstract: A composite non-woven needlefelt ink absorber that is particularly suited for use with an ink jet printer to absorb and disperse waste ink utilizes at least two distinct layers. The layer initially contacted by the ink is low density/course denier. The final ink receiving and retaining layer is high density/fine denier. Any intermediate layers are also intermediate in density and denier.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: October 26, 2004
    Assignee: BMP America, Inc.
    Inventors: Alan Lebold, Thomas Sass
  • Patent number: 6800572
    Abstract: The present invention relates to fibrous web materials comprising polymeric material wherein the structure of the polymeric material contains elastic amorphous areas nano-scale-size reinforced with self arranged crystalline domains of nano-crystals.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: October 5, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Bernhard Rieger, Mike Orroth, Gian De Belder
  • Publication number: 20040157520
    Abstract: A fabric material includes one or more non-fluorescent or non-illuminative fibers and one or more fluorescent or illuminative fibers engaged or woven or entangled or intermingled with each other, to solidly engage the fluorescent fibers in the non-fluorescent fibers, and to prevent the fluorescent fibers from being disengaged from the non-fluorescent fibers. The fluorescent fibers may reflect the lights, or may absorb the lights in the day time, and to generate fluorescence or illuminative lights in the night or in the dark environment, and thus for allowing the users to be seen in the dark environment, to prevent accidents.
    Type: Application
    Filed: February 10, 2003
    Publication date: August 12, 2004
    Inventors: Chin Chuan Huang, Chi Yuan Chang, Poen Chen
  • Publication number: 20040152387
    Abstract: This invention relates to a new nonwoven material which has very high Frazier permeability while having substantial hydrostatic head liquid barrier properties. The material is comprised of fibers which are approximately one denier and finer fibers which have sufficient strength properties so as not to need a support scrim. The fabric is quite comfortable because of its breathability, quite soft because of its construction, and protective from liquids from rain to hazardous chemicals.
    Type: Application
    Filed: January 22, 2004
    Publication date: August 5, 2004
    Inventors: Edgar N. Rudisill, Hans Rudolf Edward Frankfort, Rudolph F. Janis, Stephen Buckner Johnson, David Jackson McGinty, H. Vaughn Samuelson, Hyunkook Shin, George Vassilatos
  • Patent number: 6753276
    Abstract: A nonwoven fabric includes a cohesively integrated web of hydrodynamically entangled short-staple or “waste cotton” fibers. A batt of waste cotton fibers is hydrodynamically needled by high-pressure streams of water. The hydrodynamic energy of the streams causes the fibers to cohere and to become mutually entangled, which in turn results in a fabric of sufficient strength to be used for, among other things, a bag for a bulk material and particularly a bag or cover for a cotton bale.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: June 22, 2004
    Assignee: Magnolia Manufacturing Company, Inc.
    Inventors: Anderson Warlick, Quintin Shuler
  • Publication number: 20030186612
    Abstract: A lightweight nonwoven material having hydrophilic characteristics is described. The nonwoven material includes at least three layers wherein a first layer is spunlaid, a second layer is meltblown, and a third layer is spunlaid, the first and third layers being external layers. The basis weight of the nonwoven material is 13.5 gsm or less and the basis weight of the second meltblown layer is 3.5 gsm or less, preferably less than 3.0 gsm, and more preferably less than 2.5 gsm. Hydrophilicity is imparted to the nonwoven material by inclusion of a surfactant additive in an extrusion melt during formation of fibers, or by topical treatment following formation of the layers of the nonwoven material. The method of making the nonwoven material involves formation of the layers thereof as continuous fibers and forming the layers in a continuous sequential manner, i.e., a subsequent layer being formed on top of a preceding layer or layers.
    Type: Application
    Filed: July 15, 2002
    Publication date: October 2, 2003
    Applicant: Avgol Ltd.
    Inventors: Moshe Goldwasser, Achai Bonneh
  • Publication number: 20030022583
    Abstract: The invention relates to a ballistic resistant material having a V50 value of at least about 1000 feet per second. The ballistic resistant material includes at least two types of fibrous materials, which are blended and consolidated together, preferably by needlepunching, to create a single layer of nonwoven, composite material. The needle punching is preferably in the range of 200 to 1000 needlepunches per square inch. The fibrous materials are characterized by being deformed when subjected to the impact of a ballistic object. One of the fibers phase changes, e.g. melting, upon impact and at least one other fiber fibrillates upon impact. One of the fibers must phase change at a temperature at least 80° C. lower than the highest melting or destruction point fiber in the high modulus fiber blend.
    Type: Application
    Filed: May 9, 2002
    Publication date: January 30, 2003
    Inventors: Howard L. Thomas, Greg J. Thompson
  • Publication number: 20020168911
    Abstract: An absorbent fleece for use in hospital supplies, comprises a fiber blend of about 80-95% viscose and 10% polyester formed into a dry laid, nonwoven web, wherein the web consists of multiple, carded and cross-lapped layers that are consolidated using a needle-punch process, whereby the fleece has a water absorbtion of at least about 1,000 wt % and an absorbing speed of at least about 20 mm after 10 seconds.
    Type: Application
    Filed: May 2, 2002
    Publication date: November 14, 2002
    Inventor: Kathleen C. Tonner
  • Patent number: 6444774
    Abstract: This invention relates generally to fibers and fabrics prepared using crystalline propylene polymer compositions comprising both propylene homopolymer and propylene copolymer. The propylene polymer compositions are prepared using at least one metallocene catalyst system in a polymerization process that involves the initial homopolymerization of propylene followed by the copolymerization of propylene with a small amount of comonomer. Fibers prepared with these propylene polymers are significantly more elastic and fabrics prepared with these polymers have a significantly broader bonding window which allows for more easy processing compared to fibers and fabrics prepared from known propylene polymers.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: September 3, 2002
    Assignee: ExxonMobil Chemical Patents, Inc.
    Inventors: G. Allan Stahl, Galen C. Richeson
  • Patent number: 6268302
    Abstract: A spunbond nonwoven fabric is provided which has superior strength characteristics to conventional fabrics yet is comparably soft. The fabric is a laminate having a web made from a high melt flow rate polyolefin polymer and a low melt flow rate polymer. The spunbond laminate fabric of this invention may have therebetween a layer of meltblown nonwoven fabric or film. The laminate produced according to this invention has a strength which is at least 10% greater than a comparable fabric made without the high melt flow rate polymer web. The nonwoven fabric of this invention may be used in products such as, for example, garments, personal care products, medical products, protective covers and outdoor fabrics.
    Type: Grant
    Filed: April 2, 1997
    Date of Patent: July 31, 2001
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Simon Kwame Ofosu, Peter Michailovich Kobylivker, Mary Lou DeLucia, Robert Leslie Hudson, John Joseph Sayovitz
  • Patent number: 6211100
    Abstract: A composite filter media (100) includes a meltblown/spunbond composite fiber material and a mixed fiber triboelectric material are preferably attached to each other by needling the mixed fiber material with the meltblown/spunbond composite fiber material. A netting (104) is then attached by preferably needling the mixed fiber triboelectric material and meltblown through the netting (104).
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: April 3, 2001
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Pierre Legare
  • Patent number: 6177370
    Abstract: The present invention desirably provides a fabric including a synthetic fiber structure first zone, a synthetic fiber structure second zone, and a short fiber third zone. The first zone may include a spunbond web layer and a meltblown web layer. The synthetic fiber structure second zone may be positioned proximate to the synthetic fiber structure first zone and the short fiber third zone may be positioned substantially between the first and second zones. Desirably, the first and second zones are entwined.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: January 23, 2001
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Henry Skoog, Fred R. Radwanski, Terry R. Cleveland, Frances W. Mayfield, Lawrence M. Brown
  • Patent number: 6159882
    Abstract: Nonwoven fibrous webs having substantial strength in the direction normal to their planes and the preparation of such webs.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: December 12, 2000
    Assignee: Boricel Corporation
    Inventors: James Harvey Kean, Tod Mitchell Kean, Kenneth Roger Williams
  • Patent number: 6133171
    Abstract: To avoid breakage and weak points at the points of deflection in case of a large deflection angle and deep deformations a non-woven is formed of several fiber components, which forms a flexible, dimensionally stable molded article under pressure and temperature. An additional CoPES-fiber component facilitates lamination with other fibers without having to use additional auxiliaries.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: October 17, 2000
    Assignee: Lohmann GmbH & Co., KG
    Inventors: Bernd Potzler, Wolfgang Riediger
  • Patent number: 6087279
    Abstract: A textile surface-area material used for cleaning, having a non-woven material and structures raised over the non-woven material. The structures are on both sides of the surface-area material. The structures can be full-surface or partial surfaces, and the base non-woven material can have structures, staggered on both sides, formed by structure needling. Spacings can be maintained between the structures which corresponds at least to a dimension of the structure on the opposite side. The non-woven can have at least two layers, laminated together, of a non-woven material provided on one side with structures.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: July 11, 2000
    Assignee: Firma Carl Freudenberg
    Inventor: Heinrich Hans Laun
  • Patent number: 6066388
    Abstract: A nonwoven (1) comprising two outer fiber layers (3, 4) and at least one inner fiber layer (2) having a different composition from that of the outer layers (3, 4). The nonwoven (1) comprises structural fibers (7, 8) and binding fibers (5, 6), said binding fibers (5, 6) at least partially consisting of a polymer with a lower melting point than the structural fibers (7, 8). Said nonwoven (1) is densified by needling on both sides to a given depth while leaving an undensified central region. A method for producing the nonwoven is also disclosed.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: May 23, 2000
    Inventor: Jozef Van Kerrebrouck
  • Patent number: 5952252
    Abstract: There is provided a fully elastic, breathable, barrier fabric comprising a nonwoven web layer of fibers of less than 40 microns in average diameter, where the web has a hydrohead of at least 10 mbar, a Frazier Permeability of at least 100 CFM, a basis weight of less than 68 gsm and which is made from an elastic polymer. If the fabric is a laminate it may be an SMS, SBL or NBL laminate. This fabric is particularly well suited to use as a containment flap for personal care products such as diapers, incontinence products and feminine hygiene products and in infection control products.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: September 14, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Susan Elaine Shawver, Leslie Warren Collier, IV, Paul Windsor Estey, Susan Carol Paul
  • Patent number: 5928973
    Abstract: A non-woven fabric formed from a blend of lyocell fibers and polyester fibers has good loftiness and softness, low lint level, improved wet strength, good working properties as well as fluid retention properties.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: July 27, 1999
    Assignee: American Nonwovens Corporation
    Inventors: Mason B. Daniel, Erman L. Creekmore, Jeffery A. Hedrick
  • Patent number: 5877099
    Abstract: A web, formed from dielectric fibers and non-dielectric fibers, which has been subjected to corona discharge to improve the particulate filtration properties of the web is provided. The dielectric and non-dielectric fibers may be intermingled within the web such that the distribution of the dielectric and non-dielectric fibers within the web is generally uniform. In one embodiment, the dielectric fibers may be formed from a thermoplastic polymer, and particularly polyolefin and the non-dielectric fibers may be formed from cellulose, and particularly wood pulp.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: March 2, 1999
    Inventor: Bernard Cohen
  • Patent number: 5817403
    Abstract: A nonwoven fabric characterized in that it contains:1) a fiber comprising a copolymer of propylene and ethylene; and2) a fiber comprising a polypropylene homopolymer is disclosed.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: October 6, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Emile M. Gillyns, Victor L. E. Paquay, Joseph A. Rausch
  • Patent number: 5744408
    Abstract: An improved article of manufacture and method thereof utilizing a fibrous structure of initially discrete layers, each having first and second sides. At least one side of each layer is rough and the structure has a shrinkage of no more than about 2 percent. The structure is impregnated with a thermoplastic-type polymeric material, and in the final structure there is no visible layer separation.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 28, 1998
    Inventor: Robert J. Rossi
  • Patent number: 5733826
    Abstract: An insole for shoes is a three-dimensionally shaped laminate composed of two adhesive-free formed fabrics, the formed fabric on the foot side being thin and abrasion-resistant, and the thicker formed fabric forming the base material of the insole consisting of staple fibers, having a composition of 50-60% by weight of core/sheath-polyester/copolyester fibers with a melting range of the core component of 255.degree.-260.degree. C. and of the sheath component of 110.degree.-140.degree. C., 5-15% by weight of high-shrinkage polyester fibers, and 25-40% by weight of absorbent fibers. The base material has a mass per unit area of 800-1200 g/m.sup.2 with a thickness of 0.70-0.85 cm.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: March 31, 1998
    Assignee: Firma Carl Freudenberg
    Inventor: Dieter Groitzsch
  • Patent number: 5707906
    Abstract: Method to produce a nonwoven needled fabric in which the needled fabric includes 15-30% of low melt nylon 6 and nylon 12 fusible fibers to aid in holding the nonwoven fabric together when passed through an oven to melt the fusible fibers and then allow them to cool and bind the fabric together.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: January 13, 1998
    Assignee: Milliken Research Company
    Inventor: Paul William Eschenbach
  • Patent number: 5631073
    Abstract: Nonwoven sheet materials, and pressure sensitive adhesive tapes formed from nonwoven sheet materials are provided. The nonwoven sheet materials comprise a randomly interlaced fibrous web of tensilized nonfracturable staple fibers and binder fibers, wherein the fibrous web is pattern embossed, and is interbonded by a chemical bonding agent, physical entanglement, or a combination thereof, and further wherein the nonwoven sheet material is readily finger-tearable in the cross web direction. Methods of making nonwoven sheet materials and adhesive tapes are also provided.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: May 20, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John E. Riedel, Lauren K. Cran