High Modulus Filament Or Fiber Patents (Class 428/902)
  • Patent number: 10227443
    Abstract: A thermoplastic polyurethane is obtained via reaction of isocyanates (a) with a polyol component (b) having at least one polyesterdiol (b1), at least one polyetherdiol (b2) and at least one polycarbonatediol (b3), in each case with a molar mass of from 500 to 5000 g/mol, and also with at least one diol with a molar mass of from 62 to 500 g/mol. The thermoplastic polyurethane can be used for producing moldings, more particularly seals, coupling stars, valves, and profiles. The polyurethane has exceptional mechanical and chemical properties.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: March 12, 2019
    Assignee: CARL FREUDENBERG KG
    Inventors: Juergen Hieber, Edgar Freitag, Martin Franz Goerres, Mathias Burkert, Gonzalo Barillas, Juergen Jaeckel
  • Patent number: 10081159
    Abstract: Hybrid, multi-panel ballistic resistant articles useful for the fabrication of body armor. The articles include at least three different fabric sections that are arranged into a gradient wherein the outermost, strike-face section of the article is formed from fibers having the highest tenacity of the article.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: September 25, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Ashok Bhatnagar, Danelle Powers, Brian Waring, Terry Chern
  • Patent number: 9878771
    Abstract: An incombustible, non-telegraphing substrate for facing with a decorative aviation veneer is provided. The incombustible, non-telegraphing substrate comprises a backing layer comprising a polymer resin-impregnated paper and a fire-retardant chemical included in the backing layer and rendering the backing layer incombustible. An aviation panel and a method for installing the incombustible, non-telegraphing substrate in the aviation panel assembly are also provided.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: January 30, 2018
    Assignee: GOODRICH CORPORATION
    Inventors: Christopher L. Chapman, Ashish Kumar Agarwal, Chana Kesava Reddy
  • Patent number: 9817370
    Abstract: A pointer including a pointer body formed using a carbon fiber textile sheet having a carbon fiber woven thereinto.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: November 14, 2017
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Masao Amano
  • Patent number: 9334588
    Abstract: A three-dimension fabric by which a three-dimension fabric surface can be formed by supporting the fabric edges by a frame member and stretching the fabric, wherein the fabric per se, which constitutes the fabric surface, is provided with at least one heterogeneous portion that is different at least in yarn type and/or fabric structure type from the adjacent portion. Thus, the three-dimension fabric can be easily made into a construct of a desirable shape without using a frame having a complicated shape.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: May 10, 2016
    Assignee: Toray Industries, Inc.
    Inventors: Tatsuya Kosui, Hiroaki Date, Ryosuke Yamao, Hiroshi Tsuchikura
  • Patent number: 8298969
    Abstract: A composite having a first layer and a second layer. The first layer is a nonwoven layer containing high modulus fibers having a modulus of at least 8 GPa and thermoplastic binder fibers, where at least a portion of the high modulus fibers are connected to the binder fibers, and where the first layer has a solidity of between about 10 and 90%. The second layer is a textile layer selected from the group consisting of a knit layer, a woven layer, bidirectional laminates, and a unidirectional layer. The second layer contains high modulus fibers having a modulus of at least 8 GPa in a thermoplastic matrix.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: October 30, 2012
    Assignee: Milliken & Company
    Inventor: Pradip Bahukudumbi
  • Patent number: 8221840
    Abstract: A method to prepare a carbon fiber bundle which can develop satisfactory interfacial adhesion to polyolefin-based resins, especially polypropylene resins, is provided. The carbon fiber bundle comprises a plurality of single fibers sized with a sizing agent comprising: a polymer having a main chain formed of carbon-carbon bonds, containing an acid group in at least part of side chains or at least a part of main chain ends, and having an acid value of 23 to 120 mg KOH/g as measured in accordance with ASTM D1386; or a polymer having a main chain formed of carbon-carbon bonds and containing at least either of an epoxy group and an ester group in at least a part of side chains or at least a part of main chain ends.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: July 17, 2012
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Naoki Sugiura, Akihiko Fukushima, Shinobu Fujie
  • Patent number: 8153200
    Abstract: The present invention relates to a reinforced composite material and a method for its production. The composite material comprises at least one cured resin having a reinforcing material. Preferably the reinforcing material is a plurality of glass fibres which are treated such that the properties of the interphase substantially surrounding each fibre are substantially equivalent to those of the bulk cured resin. The fibre treatment may be selected from the group consisting of a polymeric coating, a hydrophilic surface coating, a surface coating of a free radical inhibitor, or a reduction in the total surface area of the fibres. The reinforced composite material of the invention provides improved long-term mechanical properties compared to traditional glass fibre reinforced materials.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: April 10, 2012
    Assignee: MIRteq Pty Ltd.
    Inventor: Peter Clifford Hodgson
  • Patent number: 7897241
    Abstract: A composite spacer operable to be mounted on a first component is disclosed herein, wherein compression loads associated with attaching the first component to some other structure are born by the composite spacer to limit compressive deformation of the first component. The composite spacer includes a first body formed of resin and defining an aperture extending along an axis. The composite spacer also includes a plurality of first fibers positioned in the first body about the aperture. Each of the first fibers extends substantially parallel to the axis and increases a compressive strength of the first body relative to the axial direction.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: March 1, 2011
    Assignee: Rolls-Royce Corporation
    Inventor: Edward Claude Rice
  • Patent number: 7790284
    Abstract: A flexible, low-bulk pre-impregnated (pre-preg) towpreg, which is the resultant impregnation of a low pressure impregnation of a bundle of un-spread fiber tows arranged in a predetermined cross-sectional shape. During the low pressure impregnation process, the resin does not enter into the fiber bundle, but rather only coats the surface fibers comprising the tow, resulting in un-coated fibers in the core of the prepreg and with molten resin, partially adhering onto and around the exterior fibers of the fiber bundle such that the interior fibers remain uncoated and a thin, irregular sheath of resin is created on and around the exterior of the fiber bundle surrounding the core of dry fibers.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: September 7, 2010
    Inventor: Robert M. Davies
  • Patent number: 7771810
    Abstract: This invention relates to a honeycomb including articles such as a panel or aerodynamic structure comprising matrix resin and paper, the paper comprising 50 to 80 parts by weight fibrous material having a modulus of 600 grams per denier (550 grams per dtex) or greater, 0 to 50 parts by weight powdered inorganic material, and 20 parts by weight or greater thermoplastic fiber, the improvement comprising the thermoplastic fiber is a binder for the paper and has a melting temperature above the curing temperature of the matrix resin; a glass transition temperature of greater than 100° C., and the weight average molecular weight of the thermoplastic polymer in the thermoplastic fibers changes 20% or less after being maintained for 10 minutes at the melting temperature.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: August 10, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mikhail R. Levit, Subhotosh Khan, Gary Lee Hendren
  • Patent number: 7771809
    Abstract: This invention relates to a honeycomb comprising cells having edges forming a face of the honeycomb, the face defined by a plurality of points and having an area of curvature wherein at least two of the points are located in different tangential planes, the walls of the cells comprising 5 to 50 parts by weight thermoplastic material having a melting point of from 120° C. to 350° C., and 50 to 95 parts by weight of a high modulus fiber having a modulus of 600 grams per denier (550 grams per dtex) or greater, based on the total amount of thermoplastic material and high modulus fiber in the walls; wherein less than 25 percent of the honeycomb cells in the area of curvature have a re-entrant angle of greater than 180 degrees. This invention also relates to articles including panels and/or aerodynamic structures comprising the honeycomb.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: August 10, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Gary Lee Hendren, Mikhail R. Levit, Subhotosh Khan
  • Patent number: 7771811
    Abstract: This invention relates to an improved high performance honeycomb, methods for making the same, and articles including aerodynamic structures comprising the honeycomb, the honeycomb made with a paper that allows rapid impregnation of the honeycomb by structural resins while retarding excessive impregnation of node-line adhesives during manufacture. The honeycomb comprises a paper having a thickness of from 25 to 75 microns and a Gurley porosity of 2 seconds or greater and comprising high modulus fiber and thermoplastic binder having a melt point of from 180° C. to 300° C., wherein at least 30 percent by weight of the total amount of thermoplastic material is in the form of discrete film-like particles in the paper, the particles having a film thickness of about 0.1 to 5 micrometers and a minimum dimension perpendicular to that thickness of at least 30 micrometers.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: August 10, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mikhail R. Levit, Subhotosh Khan, Gary Lee Hendren
  • Patent number: 7592072
    Abstract: Prepreg composite materials that include a fiber layer and a prepreg resin composed of a bismaleimide resin component, a thermoplastic toughening agent and a resin distribution stabilizer. The bismaleimide component is an amorphous mixture of at least three different bismaleimide monomers and a co-curing agent. The prepreg is useful in panel construction where a honeycomb core is sandwiched between two sheets of composite material.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: September 22, 2009
    Assignee: Hexcel Corporation
    Inventor: Robert A. Buyny
  • Patent number: 7510762
    Abstract: Disclosed herein is a composite film comprising a layer of an organic polymer, wherein the organic polymer is an elastomer; the organic polymer having an elastic modulus of less than or equal to about 105 Pascals when measured at room temperature; and a bundle of carbon fibers disposed in the layer of organic polymer; each bundle comprising a column and an end face; each bundle also having a longitudinal axis that is substantially parallel to the column and passes through the center of the column; the end face of the carbon fiber bundle intercalated with nitrate ions and fibrillated so as to have a surface area measured perpendicular to the longitudinal axis that is about 110% to about 250% greater than the surface area of a cross-section of the carbon fiber bundle measured at the column.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: March 31, 2009
    Assignee: International Business Machines Corporation
    Inventors: Kuniaki Sueoka, Yoichi Taira
  • Patent number: 7485592
    Abstract: 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: Grant
    Filed: September 13, 2006
    Date of Patent: February 3, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Anil Kohli, Herman Hans Forsten, Kurt Hans Wyss
  • Patent number: 7456120
    Abstract: 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: Grant
    Filed: September 13, 2006
    Date of Patent: November 25, 2008
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Anil Kohli, Herman Hans Forsten, Kurt Hans Wyss
  • Patent number: 7284280
    Abstract: An energy weapon protection device to be worn by a live potential target includes a generally flexible main panel having three main elements, a generally flexible, generally planar electrically non-conductive outer insulator panel, an electrically conductive inner conductive panel and an electrically non-conductive insulating backing panel. The inner conductive panel is mounted on the insulating back panel in generally parallel alignment and the outer insulator panel is mounted on the inner conductive panel in generally parallel alignment thereby forming the main panel, and the main panel is operative to receive an electrical pulse from an energy weapon through the outer insulator panel into the inner conductive panel which completes the electric circuit for the energy weapon and the insulating backing panel generally preventing electric current from passing therethrough from the inner conductive panel such that the live potential target is protected from the electrical pulse generated by the energy weapon.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: October 23, 2007
    Inventor: Gregory Russell Schultz
  • Patent number: 7276458
    Abstract: The invention provides a composite textile or material comprising a substrate of high strength fibers, and having a natural or synthetic diamond coating bonded thereto. Preferably, the textile is a high strength fabric including or made from aramide fibers, and the natural or synthetic coating is applied by a process such as plasma or flame spraying, chemical vapor deposition, sintering, or fast pulse laser deposition. The textile or fabric can preferably be used to make or reinforce protective clothing including vests, hats, helmets, jackets, pants, shoes or boots, coats, blankets, rugs, curtains, and the like. The textile or fabric may also include an iodine or iodine containing coating, to absorb radioactive radiation, and to kill airborne pathogens, including bacteria and viruses.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: October 2, 2007
    Inventor: Sheree H. Wen
  • Patent number: 7195620
    Abstract: An object of the present invention is to provide an interlabial pad, with which a wearer will hardly feel a sensation of using the interlabial pad, even when a wearer moves and pressure from the exterior is applied to the interlabial pad. An interlabial pad 10, with which a wearer will hardly feel a sensation of using the interlabial pad, can be provided by equipping a crease-spanning region 2 of the interlabial pad 10 with a pressure dispersion means 11, which, in repulsion to pressures that are applied from the vestibular floor to the crease-spanning region 2 of the interlabial pad 10 in accompaniment to movements of the wearer, prevents the direct transmission of the pressures to the vestibular floor.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: March 27, 2007
    Assignee: Uni-Charm Corporation
    Inventors: Satoshi Mizutani, Wataru Yoshimasa, Yuki Noda
  • Patent number: 6911247
    Abstract: A protective covering system having high-flexibility and low areal density characteristics. In one aspect of the invention, the protective system includes a plurality of metallic staples or wire elements secured to multi-layer matrix including woven fibers, the layers being oriented at cross angles to provide a grid-like pattern of protective elements. In one aspect of the invention, protective elements provide a coverage area of less than 90% and as little as 40% of total surface area. In one aspect of the invention, protective elements may be mechanically secured to a matrix by a puncture and crimp process. In another, wire elements may be attached or woven into one or more matrix layers.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: June 28, 2005
    Assignee: Warwick Mills, Inc.
    Inventor: Charles Howland
  • Patent number: 6863980
    Abstract: A ceramic fabric and a resin are combined to form a fire protection sheet capable of being co-cured onto a parent laminate structure. The resulting monolithic composite firewall shows fire protection ability comparable to that of the conventional titanium structure, without the problems associated therewith, such as titanium panel separation and disbonding. The fire protection sheet easily conforms to the shape of the parent laminate and is also useful as a repair material for damaged conventionally protected firewalls.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: March 8, 2005
    Assignee: The Boeing Company
    Inventors: David T. Misciagna, Dennis J. Landi, Philip G. Persaud
  • Patent number: 6861120
    Abstract: A protective covering system having high-flexibility and low areal density characteristics. In one aspect of the invention, the protective system includes a plurality of metallic staples or wire elements secured to multi-layer matrix including woven fibers, the layers being oriented at cross angles to provide a grid-like pattern of protective elements. In one aspect of the invention, protective elements provide a coverage area of less than 90% and as little as 40% of total surface area. In one aspect of the invention, protective elements may be mechanically secured to a matrix by a puncture and crimp process. In another, wire elements may be attached or woven into one or more matrix layers.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: March 1, 2005
    Assignee: Warwick Mills, Inc.
    Inventor: Charles Howland
  • Patent number: 6830798
    Abstract: A friction disk suitable for running as an assembly of interleaved disks in a transmission is disclosed. A rigid metallic core on backing plate is covered on one or both sides with a wafer of non-woven yarn wherein the yarn comprises a continuous wound length of heat resistant yarn in a non-overlapping fashion. The yarn is bonded to the core by a thermosetting resin, which is impregnated into the yarn by less than 80% by weight to preserve porosity and allowing penetration of the cooling transmission fluid. The yarn preferably is composed of carbon fibers or filaments.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: December 14, 2004
    Assignee: Raytech Composites, Inc.
    Inventors: Laurie S. Bowles, Samuel A. Truncone, James J. Petroski
  • Patent number: 6824862
    Abstract: Fiber-reinforced ceramic composites contain bundles, tows or hanks of long fibers, wherein the long fiber bundles, tows or hanks are completely surrounded by a short fiber-reinforced matrix, with the long and short fibers having, independently of one another, a mean diameter of from 4 to 12 &mgr;m and the long fibers having a mean length of at least 50 mm and the short fibers having a mean length of not more than 40 mm, a process for producing them and their use for producing clutch disks or brake disks.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: November 30, 2004
    Assignee: SGL Carbon AG
    Inventors: Moritz Bauer, Georg Burkhart, Martin Christ, Ronald Huener, Andreas Kienzle, Peter Winkelmann, Rainer Zimmermann-Chopin
  • Patent number: 6794012
    Abstract: A structural panel comprised of a composite preform having an electrically conductive stitching. The stitching forms an electrically conductive grid-like network on the structural panel to better dissipate electrical energy received in a lightning strike throughout at least a portion of the thickness of the composite preform. Advantageously, the electrically conductive stitching is applied to the composite preform during the primary manufacturing process, rather than in a subsequent manufacturing step, to thereby help reduce the overall manufacturing cost of the structural panel. In one alternative embodiment a non-conductive polymer stitching is also applied throughout the entire thickness of the composite preform.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: September 21, 2004
    Assignee: The Boeing Company
    Inventor: Thomas Karl Tsotsis
  • Publication number: 20040147191
    Abstract: The invention provides a composite textile or material comprising a substrate of high strength fibers, and having a natural or synthetic diamond coating bonded thereto. Preferably, the textile is a high strength fabric including or made from aramide fibers, and the natural or synthetic coating is applied by a process such as plasma or flame spraying, chemical vapor deposition, sintering, or fast pulse laser deposition. The textile or fabric can preferably be used to make or reinforce protective clothing including vests, hats, helmets, jackets, pants, shoes or boots, coats, blankets, rugs, curtains, and the like. The textile or fabric may also include an iodine or iodine containing coating, to absorb radioactive radiation, and to kill airborne pathogens, including bacteria and viruses.
    Type: Application
    Filed: January 27, 2003
    Publication date: July 29, 2004
    Inventor: Sheree H. Wen
  • Patent number: 6759130
    Abstract: An electroconductive sheet comprising a substrate layer of a thermoplastic resin comprising an acrylonitrile-butadiene-styrene copolymer type resin and/or a polystyrene type resin and having laminated on at least one side of the substrate layer, a surface layer of an electroconductive resin composition comprising a polycarbonate type resin and from 5 to 50 wt % of carbon black.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: July 6, 2004
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Kazuhiro Kosugi, Takeshi Miyakawa, Masanori Higano, Mikio Shimizu
  • Publication number: 20040102115
    Abstract: A laminar reinforcing structure is provided for impact resisting face on an article, such as toe-puffs of safety shoes, striking faces on baseball bat and ice hockey stick, outsoles for boots of ice skates, and heads or faces of golf clubs, to increase an impact-resistant strength at such faces. The reinforcing structure includes a basic layer and at least one reinforcing layer. The basic layer is made of one or more plies of a fiber-reinforced thermosetting resin material and molded into a profile matching with that of the impact-resisting face of the article. The reinforcing layer is made of a thermoplastic resin-fiber woven fabric dip-coated with thermosetting resin to cover at least part of surfaces of the basic layer or be sandwiched between any two adjacent plies of the basic layer. The laminar reinforcing structure provides excellent mechanical strength and has low weight without substantially increasing the article weight.
    Type: Application
    Filed: November 27, 2002
    Publication date: May 27, 2004
    Inventor: Juan-Cheng Chou
  • Patent number: 6737368
    Abstract: The present invention relates to multiple threat penetration resistant articles. The articles include, in order, fabric layers, polymer impregnated fabric layers, and woven fabric layers. The articles can additionally include tightly woven fabric layers which define the strike face of the article.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: May 18, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Minshon J. Chiou
  • Patent number: 6720277
    Abstract: A protective fabric of high penetration resistance is formed from a plurality of layered, densely woven base fabrics, each formed by tightly weaving multifilament yarns to obtain a warp yarn “density” or “cover” in excess of 100% at the center of the fill yarn, and a fill yarn density or cover preferably also in excess of 75%. The yarns themselves preferably comprise a high modulus, high breaking strength yarn of materials such as Kevlar, Spectra, or Vectran. The resultant layered fabric offers especially high penetration resistance to weapons such as ice picks and the like. Additional resistance to penetration by sharp knives is provided by interruptedly coating the base fabric with an epoxy in such a manner as to inhibit penetration while providing drapability and breathability.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: April 13, 2004
    Assignee: Warwick Mills, Inc.
    Inventor: Charles A. Howland
  • Patent number: 6693052
    Abstract: A protective fabric includes a plurality of warp yarns interwoven with a plurality of fill yarns. The denier of each of the warp and fill yarns is less than 500. The yarns are made from at least one of liquid crystal polyesters, para-aramids, and high density polyethylenes.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: February 17, 2004
    Assignee: Warwick Mills, Inc.
    Inventor: Charles A. Howland
  • Publication number: 20040001978
    Abstract: This invention is related to a protective fabric resistant to molten metals, comprising 10 to 40 percent by weight meta-aramid fiber, 30 to 50 percent by weight wool fiber, and at least 20 percent by weight flame-retardant viscose fiber. Such fabrics typically have a total weight in the range of 200 to 450 grams per square meter and preferably have a total weight in the range of 200 to 260 grams per square meter.
    Type: Application
    Filed: July 1, 2002
    Publication date: January 1, 2004
    Inventors: Yves Bader, Hamid M. Ghorashi, Genevieve M. Laverty
  • Patent number: 6670005
    Abstract: The disclosed method can manufacture a thick-walled cylindrical part of an excellent quality which is free from the interlayer separation, by using a fiber reinforced plastic composite material. The fiber reinforced plastic composite material having a small thermal expansion coefficient is laminated in the circumferential direction of a mandrel; the laminated fiber reinforced plastic composite material layer is heat-cured to form an auxiliary member of the mandrel; a plurality of sorts of fiber reinforced plastic composite materials having a different elastic modulus, respectively are laminated on the formed auxiliary member; and the laminated fiber reinforced plastic composite materials are all heat-cured.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: December 30, 2003
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Minoru Kimura, Haruko Nagai, Yumi Ito, Naoya Takizawa, Takashi Nagumo
  • Publication number: 20030228815
    Abstract: Bi-directional and multi-axial fabrics, fabric composites, ballistically resistant assemblies thereof, and the methods by which they are made. The fabrics are comprised of sets of strong, substantially parallel, unidirectional yarns lying in parallel planes, one above the other, with the direction of the yarns in a given plane rotated at an angle to the direction of the yarns in adjacent planes; and one or more sets of yarns having lower strength and higher elongation interleaved with the strong yarns.
    Type: Application
    Filed: June 25, 2002
    Publication date: December 11, 2003
    Inventors: Ashok Bhatnagar, Elizabeth Stroud Parrish
  • Patent number: 6652950
    Abstract: The conformal thermal insulating blanket may have generally rigid batting material covered by an outer insulating layer formed of a high temperature resistant woven ceramic material and an inner insulating layer formed of a woven ceramic fiber material. The batting and insulating layers may be fastened together by sewing or stitching using an outer mold layer thread fabricated of a high temperature resistant material and an inner mold layer thread of a ceramic fiber material. The batting may be formed to a composite structure that may have a firmness factor sufficient to inhibit a pillowing effect after the stitching to not more than 0.03 inch. The outer insulating layer and an upper portion of the batting adjacent the outer insulating layer may be impregnated with a ceramic coating material.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: November 25, 2003
    Assignee: The Boeing Company
    Inventors: Andrea Barney, Charles A Whittington, Bryan Eilertson, Zenon Siminski
  • Patent number: 6652966
    Abstract: A transparent and flexible composite membrane produced from two immiscible polymers. The first polymer is a polymeric fibrous network with interconnecting pores. The second polymer is an elastomer with a refractive index matching the first polymer. The resultant composite membrane is a transparent interpenetrated network of polymers with an altered molecular structure, and mechanical strength superior to the parent polymers. A method of producing the new composite membrane involves dissolving the elastomer in a suitable solvent to form a diluted elastomeric solution, impregnating the polymeric membrane with the elastomer by adding the diluted elastomeric solution to the membrane to form a wet composite membrane, and then drying the wet composite membrane to form an interpenetrated membrane.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: November 25, 2003
    Assignees: Agency for Science, Technology and Research, National University of Singapore
    Inventors: Teoh Swee Hin, Tang Zheng Gui, Ramakrishna Seeram
  • Patent number: 6643991
    Abstract: The invention is directed to a fire door having a core, stiles, and rails formed of resin bonded exfoliated vermiculite, wherein the core has a density which exceeds that of the stiles and rails. The invention is also directed to such a fire door additionally having an intumescent material placed on some or all of the exposed edges of the stiles and rails.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: November 11, 2003
    Assignee: Premdor International, Inc.
    Inventor: Hartley Moyes
  • Patent number: 6610617
    Abstract: A flexible ballistic resistant article is disclosed that includes a plurality of layers of fabric having an areal density of 2 to 10 kg/m2, wherein at least two of the layers of fabric are loosely woven. The loosely woven fabric layers include fabric woven with a fabric tightness factor of 0.3 to 0.6 and are made using continuous filament yarns with a linear density of at least 200 dtex, a tenacity of at least 10 grams per dtex and a tensile modulus of at least 150 grams per dtex. Adjacent loosely woven fabric layers are joined together by means for securing the layers to restrict the movement of the loosely woven fabric layers relative to one another.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: August 26, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Minshon J. Chiou
  • Patent number: 6599610
    Abstract: A stitched laminate, in which plural sheets respectively having plural tow-like carbon fibers arranged in parallel to each other are laminated, with the orienting directions of the carbon fiber yarns of the respective sheets kept at different angles against a reference direction, and are stitched integrally using stitching threads. The fineness of each of the carbon fiber yarns is in a range of 1,200 to 17,000 Tex, and the pitch of the arranged carbon fibers yarns is in the range of 8 to 60 mm. In the sheets, the arranged carbon fiber yarns are widened in yarn width to ensure that no gap substantially exists between the respectively adjacent carbon fiber yarns. The plural carbon fiber yarns supplied to form sheets are respectively brought into contact with plural rollers, to be bent and widened in yarn width.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: July 29, 2003
    Assignee: Toray Industries, Inc.
    Inventors: Kiyoshi Homma, Akira Nishimura
  • Patent number: 6599626
    Abstract: A coaxial cable construction comprising (i) an inner electrical conductor comprising a single electrical conductor or a core of two or more electrical conductors; (ii) dielectric insulation comprising an inert gas and a solid, said solid comprising (a) a polymer selected from the group consisting of polyethylene, polypropylene, fluoropolymers, and mixtures of two or more of said polymers and (b) an alkylhydroxyphenylalkanoyl hydrazine; and (iii) an outer electrical conductor.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: July 29, 2003
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Jeffrey Morris Cogen, Sandra Germaine Mary Maki
  • Patent number: 6576345
    Abstract: Thin films possessing low dielectric constants (e.g., dielectric constants below 3.0) are formed on integrated circuits or other substrates. Caged-siloxane precursors are linked in such a way as to form dielectric layers, which exhibit low dielectric constants by virtue of their silicon dioxide-like molecular structure and porous nature. Supercritical fluids may be used as the reaction medium and developer both to the dissolve and deliver the caged-siloxane precursors and to remove reagents and byproducts from the reaction chamber and resultant porous film created.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: June 10, 2003
    Inventors: Patrick A. Van Cleemput, Ravi Kumar Laxman, Jen Shu, Michelle T. Schulberg, Bunsen Nie
  • Patent number: 6565959
    Abstract: A high strength, high modulus fiber is applied to uncured adhesive in the glueline of a laminar wood beam as an anti-sag agent and for improved shear strength, creep resistance, and gapability. In one embodiment, discontinuous fibers are evenly applied over the adhesive at approximately 0.25 to 1.35 wt % fiber. The applied fibers are chopped fibers of aramid, carbon, glass, or other high strength, high modulus fiber and are applied in lengths of approximately 0.025 to 2.54 centimeters. In another embodiment, discontinuous fibers are used as an additive to a resin matrix for reconstituted fiber products to control dimensional change. In a third embodiment, continuous fibers are used in the glueline in a pretensioned or an untensioned way to improve shear resistance, creep resistance, and strength.
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: May 20, 2003
    Inventor: Daniel A. Tingley
  • Patent number: 6555730
    Abstract: The invention relates to the use of a non-woven fabric which is over-stitched by means of stitching threads as a supporting material for medical purposes. The invention is characterized in that the maximum tensile force of supporting material is equal to at least 30 N/cm and at least one side of the supporting material is partially or completely coated with a self-adhesive mass.
    Type: Grant
    Filed: July 3, 2000
    Date of Patent: April 29, 2003
    Assignee: Beiersdorf AG
    Inventors: Andreas Albrod, Frank Ganschow, Peter Himmelsbach, Klaus Keite-Telgenbüscher, Daniela Peeters-Bendix, Heidi Sacker
  • Patent number: 6548430
    Abstract: A protective fabric includes a plurality of warp yarns interwoven with a plurality of fill yarns. The denier of each of the warp and fill yarns is less than 500. The yarns are made from at least one of liquid crystal polyesters, para-aramids, and high density polyethylenes.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: April 15, 2003
    Assignee: Warwick Mills, Inc.
    Inventor: Charles A. Howland
  • Patent number: 6544910
    Abstract: Essentially inelastic backing material for medical purposes, characterized in that the backing material has an addition of high-strength fibers, multi-strand yarns, mixed multistrands or filaments having an ultimate tensile stress strength of at least 60 cN/tex, preferably from 80 to 500 cN/tex, the high-strength fibers, multi-strand yarns, mixed multistrands or filaments having a water absorption of less than 10%, preferably less than 5% and, with particular preference, less than 3% and the high-strength fibers, multi-strand yarns, mixed multistrands or threads giving the backing material an ultimate stress strength of at least 50 N/cm, preferably from 60 to 450 N/cm and, with particular preference, from 65 to 250 N/cm, and in that the backing material is coated at least partially on at least one side with a hotmelt adhesive composition.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: April 8, 2003
    Assignee: Beiersdorf AG
    Inventors: Peter Himmelsbach, Stefan Bodenschatz
  • Patent number: 6475936
    Abstract: A combination of layered structures is disclosed for protection from both knife stab and ballistic threats wherein the outer face is the knife stab strike face and includes layers of loosely woven fabrics and the inner face includes ballistic layers.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: November 5, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Minshon J. Chiou
  • Publication number: 20020160146
    Abstract: A stitched laminate, in which plural sheets respectively having plural tow-like carbon fibers arranged in parallel to each other are laminated, with the orienting directions of the carbon fiber yarns of the respective sheets kept at different angles against a reference direction, and are stitched integrally using stitching threads. The fineness of each of the carbon fiber yarns is in a range of 1,200 to 17,000 Tex, and the pitch of the arranged carbon fibers yarns is in the range of 8 to 60 mm. In the sheets, the arranged carbon fiber yarns are widened in yarn width to ensure that no gap substantially exists between the respectively adjacent carbon fiber yarns. The plural carbon fiber yarns supplied to form sheets are respectively brought into contact with plural rollers, to be bent and widened in yarn width.
    Type: Application
    Filed: October 3, 2001
    Publication date: October 31, 2002
    Inventors: Kiyoshi Homma, Akira Nishimura
  • Patent number: 6468625
    Abstract: A reinforcing lamina sheet and a process of making a reinforcing sheet for use in a glue laminated beam. The reinforcing lamina sheet increases the compressive and/or tensile strength of the glue laminate beam. The lamina sheet is formed from unidirectionally oriented reinforcing filaments, preferably aramid filaments in an epoxy resin, and is cured in a curved configuration. The resulting lamina sheet includes filaments which are uniformly tensioned and, therefore, when a load is applied to the glue laminate beam having the reinforcing lamina sheet, the fibers receive the load substantially simultaneously. The process of forming the lamina sheet includes drawing reinforcement yarns through a resin bath to form a resin impregnated substantially planar yarn band, contacting one side of the resulting impregnated band with a curved heated surface to promote partial curing of at least the contacting surface of the band, and further applying heat to at least the opposite side of the partially cured band.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: October 22, 2002
    Assignee: Hexcel CS Corporation
    Inventor: Gordon L. Brown, Jr.
  • Patent number: 6458725
    Abstract: An airbag base fabric is formed of thermoplastic synthetic filament yarns, wherein the yarn strength of the filament yarn is 7.0 g/denier or more and the fineness of the filament yarn is 200-250 denier. The fabric is thin and lightweight, which is thus excellent in accommodation, and is effective in reducing the size and weight of an airbag module.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: October 1, 2002
    Assignee: Takata Corporation
    Inventors: Yasushi Masuda, Akira Kokeguchi, Ryosuke Nakanishi