Composite Or Conjugate Fiber (e.g., Fiber Contains More Than One Chemically Different Material In Monofilament Or Multifilament Form, Etc.) Patents (Class 428/296.7)
  • Patent number: 11692291
    Abstract: Nonwoven materials having at least one layer comprising high core bicomponent fibers are provided. The nonwoven materials can have multiple layers and are suitable for use in a variety of applications, including in absorbent products. Such nonwoven materials can be patterned to create a three-dimensional topography including indentations formed of valleys and ridges. The nonwoven materials can have improved resiliency and strength and can retain their structure under wetted conditions and after tension and compression. The nonwoven materials can further facilitate the transfer of the liquid through the nonwoven material for improved liquid distribution and can also have improved liquid retention properties.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: July 4, 2023
    Assignee: Glatfelter Corporation
    Inventors: James B. Parsons, Alan J. Campbell, Timothy J. Kistemaker, Ronald T. Moose, Jacek K. Dutkiewicz, Brian Fong, Thomas J. Cavanaugh
  • Patent number: 10577724
    Abstract: An arc resistant acrylic fiber includes an acrylic polymer. The arc resistant acrylic fiber also includes an infrared absorber in an amount of 1 wt % to 30 wt % with respect to a total weight of the acrylic polymer.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: March 3, 2020
    Assignee: KANEKA CORPORATION
    Inventors: Tatsuro Ohzeki, Keita Uchibori, Wataru Mio, Yasunori Tanaka, Yuto Utsunomiya
  • Patent number: 10112321
    Abstract: Herein is provided a fiber that includes a cladding material disposed along a longitudinal-axis fiber length and a plurality of discrete and disconnected high-stress domains that are disposed as a sequence along a longitudinal line parallel to the longitudinal fiber axis in at least a portion of the fiber length. Each high stress domain has an internal pressure of at least 0.1 GPa and comprises a material that is interior to and different than the fiber cladding material.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: October 30, 2018
    Assignee: Massachusetts Institute of Technology
    Inventors: Alexander Gumennik, Yoel Fink, Benjamin Jean-Baptiste Grena, John D. Joannopoulos
  • Patent number: 10023663
    Abstract: Propylene polymers having a melt flow index in the range from 3.0 dg/min to 8.0 dg/min can be particularly suited for high-tenacity fibers and yarns and nonwovens. The propylene polymers can be produced by a process that includes polymerizing propylene or propylene and at least one comonomer in presence of a Ziegler-Natta polymerization catalyst, an aluminium alkyl, and hydrogen.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: July 17, 2018
    Assignee: TOTAL RESEARCH & TECHNOLOGY FELUY
    Inventors: Peter Geeurickx, Alain Standaert, Jean-Luc Zuliani
  • Patent number: 9526303
    Abstract: The invention relates to a catching element of a male-female or male-male self-gripping device, which comprises a rod portion (1) and a catching portion (2), the rod portion extending in an axis that is transverse to a base strip (B) and the catching portion projecting laterally from the rod portion, characterized in that at least the catching portion is made of a thermoplastic material having a bending modulus of more than 1000 MPa, specifically more than 1200 MPa, in particular more than 1500 MPa at 25° C., the catching element being produced by molding, specifically by injection molding, and when the thermogram is plotted for the hook, in other words when differential scanning calorimetry is carried out, an absence or almost-absence of relaxation enthalpy near the glass transition can be seen during the first rise in temperature.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: December 27, 2016
    Assignee: APLIX
    Inventor: Anthony Mahe
  • Patent number: 9302947
    Abstract: Provided is a method for producing inorganic fiber including: preparing a spinning raw material liquid which comprises an aluminum source, a calcium source, a silicon source and a spinning auxiliary, in which the content of the spinning auxiliary is, in terms of solid matter, 3 parts by mass or more relative to 100 parts by mass of the total of the aluminum source, the calcium source and the silicon source; spinning the spinning raw material liquid by a sol-gel method to obtain crude inorganic fiber; and firing the crude inorganic fiber to produce inorganic fiber that comprises 35 mass % to 88 mass % of Al2O3, 3 mass % to 45 mass % of CaO and 5 mass % to 40 mass % of SiO2 in which the total of Al2O3, CaO and SiO2 is 97 mass % or more of the entire fiber.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: April 5, 2016
    Assignee: NICHIAS CORPORATION
    Inventors: Nobuya Tomosue, Kazutoshi Isomura, Kazutaka Murayama, Kiyoshi Sato
  • Patent number: 8883305
    Abstract: The present invention relates to thermoset resin fiber components, composite materials including thermoset resin fiber components, composite articles manufactured using such composite materials and methodologies for manufacturing same. The thermoset resin fiber components may include a single fiber of thermoset resin or a plurality of fibers commingled together. The properties and characteristics of the thermoset resin used are chosen according to the material to be produced therefrom. The thermoset fiber components may be woven into reinforcement fibers to form prepregs. Thermoplastic fibers may be commingled and co-woven with the thermoset fiber components.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: November 11, 2014
    Assignee: Umeco Structual Materials (Derby) Limited
    Inventors: Mark Raymond Steele, Andrew Gibbs, Amy Grace Atkinson
  • Patent number: 8807931
    Abstract: A system may include a structure having a leading edge and a fiber-reinforced composite cover. The fiber-reinforced composite cover may include a protective portion and a retaining portion, wherein the retaining portion extends about the structure to self-retain the protective portion along the leading edge, and the protective portion is different from the retaining portion.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: August 19, 2014
    Assignee: General Electric Company
    Inventor: Herbert Chidsey Roberts
  • Patent number: 8778487
    Abstract: A tape that can be used to detect cracks in a structure to which it is attached is disclosed herein. The tape includes a plurality of structural fibers. The tape also includes an electrically-insulating binder at least partially encapsulating the plurality of structural fibers. The tape also includes quantities of electrically conductive particles, each quantity of electrically conductive particles connected with one of the plurality of structural fibers.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: July 15, 2014
    Assignee: Rolls-Royce Corporation
    Inventor: Edward Claude Rice
  • Patent number: 8557374
    Abstract: Disclosed are multicomponent fibers derived from a blend of a sulfopolyester with a water non-dispersible polymer wherein the as-spun denier is less than about 6 and wherein the water dispersible sulfopolyester exhibits a melt viscosity of less than 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec, and wherein the sulfopolyester comprising less than about 25 mole % of residues of at least one sulfomonomer, based on the total moles of diacid or diol residues. The multicomponent fiber is capable of being drawn at a relatively high fiber speed, particularly at least about 2000 m/min, and may be used to produce microdenier fibers. Fibrous articles may be produced from the multicomponent fibers and microdenier fibers. Also disclosed is a process for multicomponent fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: October 15, 2013
    Assignee: Eastman Chemical Company
    Inventors: Rakesh Kumar Gupta, Scott Ellery George, Daniel William Klosiewicz, Kab Sik Seo, Coralie McKenna Fleenor, Allen Lynn Crain
  • Patent number: 8501647
    Abstract: The present invention provides high strength nonwoven wipe materials and the process of making the materials. The high strength nonwoven wipe materials contain cellulosic fibers, synthetic fibers, or mixtures thereof, with bicomponent fibers and optionally, a binder. The present invention provides a high strength, high elongation, reduced stiffness nonwoven wipe material with superior tensile strength.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: August 6, 2013
    Assignee: Buckeye Technologies Inc.
    Inventors: Jeffrey Scott Hurley, Brian E. Boehmer, Alan Jeffrey Campbell, Jerry Michael Moore, Douglas William Vercauteren, Heather Fielder Horton, Barry George Burgess
  • Patent number: 8444896
    Abstract: Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57° C. and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. The fibrous articles include water-dispersible and microdenier nonwoven webs, fabrics, and multilayered articles such as wipes, gauze, tissue, diapers, panty liners, sanitary napkins, bandages, and surgical dressings. Also disclosed is a process for water-dispersible fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: May 21, 2013
    Assignee: Eastman Chemical Company
    Inventors: William Alston Haile, Scott Ellery George, Wesley Raymond Hale, Waylon Lewellyn Jenkins
  • Patent number: 8383006
    Abstract: Improved polisiloxane composite barrier to control, preventing the ingress, limiting the level of H2O within devices sensitive to its presence, method for its production, sensitive devices employing such barriers for the control of the H2O level within.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: February 26, 2013
    Assignee: SAES Getters S.p.A.
    Inventors: Paolo Vacca, Antonio Bonucci, Sergio Rondena, Roberto Macchi
  • Publication number: 20120263935
    Abstract: A composition includes a carbon nanotube (CNT) yarn or sheet and a plurality of carbon nanostructures (CNSs) infused to a surface of the CNT yarn or sheet, wherein the CNSs are disposed substantially radially from the surface of the CNT yarn or outwardly from the sheet. Such compositions can be used in various combinations in composite articles.
    Type: Application
    Filed: June 5, 2012
    Publication date: October 18, 2012
    Applicant: Applied Nanostructured Solutions, LLC
    Inventors: Jordan T. Ledford, Matthew R. Laszewski, Harry C. Malecki
  • Patent number: 8273451
    Abstract: Disclosed are multicomponent fibers derived from a blend of a sulfopolyester with a water non-dispersible polymer wherein the as-spun denier is less than about 6 and wherein the water dispersible sulfopolyester exhibits a melt viscosity of less than 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec, and wherein the sulfopolyester comprising less than about 25 mole % of residues of at least one sulfomonomer, based on the total moles of diacid or diol residues. The multicomponent fiber is capable of being drawn at a relatively high fiber speed, particularly at least about 2000 m/min, and may be used to produce microdenier fibers. Fibrous articles may be produced from the multicomponent fibers and microdenier fibers. Also disclosed is a process for multicomponent fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: September 25, 2012
    Assignee: Eastman Chemical Company
    Inventors: Rakesh Kumar Gupta, Scott Ellery George, Daniel William Klosiewicz, Kab Sik Seo, Coralie McKenna Fleenor, Allen Lynn Crain
  • Patent number: 8247335
    Abstract: Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57° C. and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. The fibrous articles include water-dispersible and microdenier nonwoven webs, fabrics, and multilayered articles such as wipes, gauze, tissue, diapers, panty liners, sanitary napkins, bandages, and surgical dressings. Also disclosed is a process for water-dispersible fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: August 21, 2012
    Assignee: Eastman Chemical Company
    Inventors: William Alston Haile, Scott Ellery George, Wesley Raymond Hale, Waylon Lewellyn Jenkins
  • Patent number: 8236713
    Abstract: Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57° C. and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. The fibrous articles include water-dispersible and microdenier nonwoven webs, fabrics, and multilayered articles such as wipes, gauze, tissue, diapers, panty liners, sanitary napkins, bandages, and surgical dressings. Also disclosed is a process for water-dispersible fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: August 7, 2012
    Assignee: Eastman Chemical Company
    Inventors: William Alston Haile, Scott Ellery George, Wesley Raymond Hale, Waylon Lewellyn Jenkins
  • Patent number: 8216953
    Abstract: Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57° C. and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. The fibrous articles include water-dispersible and microdenier nonwoven webs, fabrics, and multilayered articles such as wipes, gauze, tissue, diapers, panty liners, sanitary napkins, bandages, and surgical dressings. Also disclosed is a process for water-dispersible fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: July 10, 2012
    Assignee: Eastman Chemical Company
    Inventors: William Alston Haile, Scott Ellery George, Wesley Raymond Hale, Waylon Lewellyn Jenkins
  • Patent number: 8163377
    Abstract: Thermal insulation comprises sol-gel formed fibers comprising 10 to 99 mol % of a refractory base composition, and 1 to 90 mol % of a component selected from earth metal oxides, alkali metal oxides, and mixtures thereof, and wherein said alkaline earth metal oxides if present comprise one or more of calcium oxide, strontium oxide, barium oxide or a mixture thereof. The refractory base comprises SiO2 and Al2O3.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: April 24, 2012
    Assignee: The Morgan Crucible Company PLC
    Inventors: Ronald Corbett Wainwright, David Hywel Thomas, Simon Paul Oliver
  • Patent number: 8158244
    Abstract: Disclosed are multicomponent fibers derived from a blend of a sulfopolyester with a water non-dispersible polymer wherein the as-spun denier is less than about 6 and wherein the water dispersible sulfopolyester exhibits a melt viscosity of less than 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec, and wherein the sulfopolyester comprising less than about 25 mole % of residues of at least one sulfomonomer, based on the total moles of diacid or diol residues. The multicomponent fiber is capable of being drawn at a relatively high fiber speed, particularly at least about 2000 m/min, and may be used to produce microdenier fibers. Fibrous articles may be produced from the multicomponent fibers and microdenier fibers. Also disclosed is a process for multicomponent fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 17, 2012
    Assignee: Eastman Chemical Company
    Inventors: Rakesh Kumar Gupta, Scott Ellery George, Daniel William Klosiewicz, Kab Sik Seo, Coralie McKenna Fleenor, Allen Lynn Crain
  • Patent number: 8148278
    Abstract: Disclosed are multicomponent fibers derived from a blend of a sulfopolyester with a water non-dispersible polymer wherein the as-spun denier is less than about 6 and wherein the water dispersible sulfopolyester exhibits a melt viscosity of less than 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec, and wherein the sulfopolyester comprising less than about 25 mole % of residues of at least one sulfomonomer, based on the total moles of diacid or diol residues. The multicomponent fiber is capable of being drawn at a relatively high fiber speed, particularly at least about 2000 m/min, and may be used to produce microdenier fibers. Fibrous articles may be produced from the multicomponent fibers and microdenier fibers. Also disclosed is a process for multicomponent fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: April 3, 2012
    Assignee: Eastman Chemical Company
    Inventors: Rakesh Kumar Gupta, Scott Ellery George, Daniel William Klosiewicz, Kab Sik Seo, Coralie McKenna Fleenor, Allen Lynn Crain
  • Patent number: 8119237
    Abstract: A fiber is obtainable from or comprises a blend of a propylene based polymer and an ethylene/?-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481?1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven, knitted or non-woven fabrics can be made from such fibers.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: February 21, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Hong Peng, Hongyu Chen, Yuen-Yuen D. Chiu, Shih-Yaw Lai, Eddy I. Garcia-Meitin, Charles F. Diehl
  • Patent number: 8114323
    Abstract: Amphoteric polymer composite nanoparticles are added into the polymer grains of synthetic fibers. The synthetic fibers are woven to form a textile capable of adjusting pH value.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: February 14, 2012
    Assignee: Taiwan Textile Research Institute
    Inventors: Jia-Peng Lin, Pui-Leng Lai, Wan-Ling Lu, Ding-Han Huang, Chao-Huei Liu, Chun-Hung Lin
  • Patent number: 8114507
    Abstract: A multi-layered fiber containing a core and a skin layer. The core has an exterior surface portion containing polypropylene. The skin layer is disposed on at least a portion of the core and contains a first polymer and a second polymer. The first polymer contains a polymer having at least 70% ?-olefin units and is characterized by a melting temperature lower than the melting temperature of the exterior surface portion of the core. The second polymer contains a co-polymer having at least 50% ?-olefin units and is characterized by a number-average molecular weight of about 7,000 g/mol to 50,000 g/mol, a viscosity of between about 2,500 and 150,000 cP measured at 170° C., and a melting temperature lower than the melting temperature of the exterior surface portion of the core. The viscosity of the second polymer is not greater than about 10 percent of the viscosity of the first polymer measured at 170° C. Methods of forming the multi-layered fiber are also disclosed.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: February 14, 2012
    Assignee: Milliken & Company
    Inventors: Sujith Nair, Sasha Stankovich, Yunzhang Wang, Venkatkrishna Raghavendran
  • Patent number: 8003555
    Abstract: A flame retardant synthetic fiber and a flame retardant fiber composite that satisfy high flame retardance and high fire resistance, a method for producing the flame retardant synthetic fiber and the flame retardant fiber composite, and a textile product are provided. The flame retardant synthetic fiber of the present invention includes a polymer (1) containing 30 to 70 parts by mass of acrylonitrile, 70 to 30 parts by mass of a halogen-containing vinylidene monomer and/or a halogen-containing vinyl monomer, and 0 to 10 parts by mass of a vinyl-based monomer copolymerizable therewith, based on 100 parts by mass of the polymer, and at least one kind of a metal compound (2) that accelerates a dehalogenation reaction of the polymer (1) during burning and a carbonization reaction of the polymer (1) during burning, wherein the flame retardant synthetic fiber has a shrinkage variation of 45% or less when a temperature is raised from 50° C. to 300° C. under a load of 0.0054 mN/dtex.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: August 23, 2011
    Assignee: Kaneka Corporation
    Inventors: Takeshi Tanaka, Hiroyasu Hagi, Toshiaki Ebisu
  • Patent number: 8002879
    Abstract: There is disclosed a method of controlling pore size in a porous material comprising the steps of: providing a porous material comprising a plurality of interconnected auxetic fibres; and applying a tensile or compressive load to the porous material so as to vary the pore size of the porous material in order to produce a desired effect.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: August 23, 2011
    Assignee: Auxetix Limited
    Inventor: Patrick Hook
  • Patent number: 7960299
    Abstract: A reinforced fabric that includes a first fiber group and a thread. The first fiber group includes a plurality of fiber sets positioned substantially parallel to one another. Each of the fiber sets includes a plurality of fibers. The thread is formed of at least one strand of material. The thread has an outer surface that is formed of a material having a melting point that is less than the melting point of the fibers in the fiber sets. The thread is stitched about the fiber sets to at least partially maintain a position of the fiber sets relative to one another. The thread forms a plurality of heat created permanent closed loop structures in the reinforced fabric. At least one of the loop structures encircles at least one fiber set. At least one of the fibers in the fibers sets is not strongly bonded to the thread that encircles the fiber set.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: June 14, 2011
    Assignee: Garland Industries, Inc.
    Inventor: Louis Kevin Horne
  • Patent number: 7931957
    Abstract: Described are fiber materials having improved malodor scavenger properties and a process for the manufacture of said materials. In particular, described are fiber materials usable in the manufacture of disposable or washable diapers, incontinent products, sanitary napkins and other such hygiene and personal care articles with improved malodor scavenger properties, and to methods of manufacturing such materials. It has been found that the incorporation of, especially nanosized, metal particles and/or a cyclodextrin material into fibers creates a “reactive” material having excellent malodor scavenging properties. More specifically, it has been found that the presence of nanosized metal or metal alloy particles and/or a cyclodextrin material in a fiber material, preferably a synthetic polymer material and more preferably a synthetic thermoplastic polymer fiber material leads to fiber materials or nonwovens having odor-controlling properties.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: April 26, 2011
    Assignee: Cellresin Technologies, LLC
    Inventors: Will Wood, Neil Beaverson
  • Patent number: 7928024
    Abstract: A composite pad is made of two layers joined together at their interface. The top layer of the composite pad, which has a smooth surface has a dense and firm fine denier fibrous structure. The bottom layer of the composite pad has a lighter and softer coarser denier fibrous structure in order to be able to have a large fluid holding capacity. A method of manufacturing the composite stamp pad is described.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: April 19, 2011
    Assignee: American Felt and Filter Company
    Inventors: Francis F. Kochesky, Kalyn S. Kimler, Mark A. Pryne
  • Patent number: 7902094
    Abstract: Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57° C. and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. The fibrous articles include water-dispersible and microdenier nonwoven webs, fabrics, and multilayered articles such as wipes, gauze, tissue, diapers, panty liners, sanitary napkins, bandages, and surgical dressings. Also disclosed is a process for water-dispersible fibers, nonwoven fabrics, and microdenier webs.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: March 8, 2011
    Assignee: Eastman Chemical Company
    Inventors: William Alston Haile, Scott Ellery George, Wesley Raymond Hale, Waylon Lewellyn Jenkins
  • Patent number: 7892389
    Abstract: A reinforced fabric that includes a first fiber group and a thread. The first fiber group includes a plurality of fiber sets positioned substantially parallel to one another. Each of the fiber sets includes a plurality of fibers. The thread is formed of at least one strand of material. The thread has an outer surface that is formed of a material having a melting point that is less than the melting point of the fibers in the fiber sets. The thread is stitched about the fiber sets to at least partially maintain a position of the fiber sets relative to one another. The thread forms a plurality of heat created permanent closed loop structures in the reinforced fabric. At least one of the loop structures encircles at least one fiber set. At least one of the fibers in the fibers sets is not strongly bonded to the thread that encircles the fiber set.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: February 22, 2011
    Assignee: Garland Industries, Inc.
    Inventor: Louis Kevin Horne
  • Patent number: 7892994
    Abstract: Amphoteric polymer composite nanoparticles are added into the polymer grains of synthetic fibers. The synthetic fibers are woven to form a textile capable of adjusting pH value.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: February 22, 2011
    Assignee: Taiwan Textile Research Institute
    Inventors: Jia-Peng Lin, Pui-Leng Lai, Wan-Ling Lu, Ding-Han Huang, Chao-Huei Liu, Chun-Hung Lin
  • Patent number: 7867607
    Abstract: A polyolefin fiber includes 0.2 to 5.0 wt % of hydrophilic additive, and 0.05 to 3.00 wt % of titanium dioxide (TiO2). The polyolefin fiber may further include 0.2 to 1.0 wt % of spin finish provided on a surface thereof. The polyolefin fiber is spun to have a circular section, a modified cross-section including an X-shaped section, a Y-shaped section, a deltaic section, an oval section, a diamond section, a bladebone-shaped section, and a combined section thereof, or a combined section of the circular section and the modified cross-section. A method of producing a polyolefin fiber includes (a) melt extruding a composition which contains 93 to 99 wt % of polyolefin resin, 0.2 to 5.0 wt % of hydrophilic additive, and 0.05 to 3.00 wt % of any one titanium dioxide (TiO2) of rutile titanium dioxide, anatase titanium dioxide, and brookite titanium dioxide at 240 to 300° C. and performing winding at a spin speed of 500 to 2,000 mpm to produce a undrawn yarn, and (b) drawing the undrawn yarn at a draw ratio of 1.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: January 11, 2011
    Assignee: Kolonglotech, Inc.
    Inventors: Pyung-Youl Park, Dong-Hun Kwak
  • Patent number: 7829484
    Abstract: The present invention is aimed at a method of providing wettability to polyester fibers or filaments, to woven or nonwoven fabrics made therefrom and to resultant articles of manufacture. The method comprises melt extruding a mixture comprising a polyester and one or more alkyl metal sulfonates where the metal is Na, Li or K and the alkyl is straight or branched chain alkyl of 1 to 24 carbon atoms, or is straight or branched chain alkenyl of 2 to 24 carbon atoms. The alkyl metal sulfonates are present from about 0.1% to about 1.9% by weight based on the weight of the polyester. A post treatment step such as an alkaline treatment step is not included. The melt extrusion mixtures do not include certain additives such as polyoxyalkylene compounds, alkylmonoethonolamide compounds, alkyldiethanolamine compounds and polyetheramide compounds.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: November 9, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Ashutosh Sharma, Michael Tinkl, Andrew Leggio, Matthew Gande, Armin Schneider
  • Patent number: 7820289
    Abstract: Composite fibrous constructs are made of combinations of inorganic-organic hybrid monofilament or multifilament yarns containing at least 6 weight percent of inorganic micro-/nanoparticles and organic monofilament or multifilament yarn with typical examples of the hybrid yarn matrix made of absorbable or non-absorbable thermoplastic polymers and final constructs being in the form of knitted or woven meshes and braided ligatures intended to perform under specific mechanically, biologically, and/or radiologically related functions.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: October 26, 2010
    Assignee: Poly-Med, Inc.
    Inventors: Shalaby W Shalaby, Kimberly A Carpenter, Kenneth W Clinkscales
  • Patent number: 7811498
    Abstract: The invention relates to a process for the production of a shaped article comprising the compression of one or more fibre layers containing polyolefin fibres. The invention also relates to shaped articles obtainable with the process according to the invention and their use in anti-ballistic applications. In the process according to the invention the fibre layers contain 0.02 to 25 wt. % of a solvent for the polyolefin. The shaped articles obtained have an improved anti-ballistic quality.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: October 12, 2010
    Assignee: DSM IP Assets B.V.
    Inventors: Floribertus C. H. Mokveld, Jean H. M. Beugels
  • Patent number: 7807593
    Abstract: In one embodiment the invention is an article comprising at least two layers, a first or low crystallinity layer comprising a low crystallinity polymer and a second or high crystallinity layer comprising a high crystallinity polymer. The high crystallinity polymer has a melting point as determined by differential scanning calorimetry (DSC) that is about the same or within less than 25 C of the melting point of the low crystallinity polymer. The article is elongated at a temperature below the melting point of the low crystallinity polymer in at least one direction to an elongation of at least about 50% of its original length or width, to form a pre-stretched article. Preferably, the high crystallinity layer is capable of undergoing plastic deformation upon the elongation.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: October 5, 2010
    Assignee: Dow Global Technologies Inc.
    Inventors: Rajen M. Patel, Andy Chang
  • Publication number: 20100215940
    Abstract: The glass fiber sizing agent of the invention comprises an amphoteric polymer compound, an organosilane compound and water, wherein the amphoteric polymer compound has a cationic unit derived from a cationic monomer such as an allylamine and an anionic unit derived from an anionic monomer such as maleic acid.
    Type: Application
    Filed: September 30, 2008
    Publication date: August 26, 2010
    Inventors: Hirotaka Itoh, Shunichi Hikino, Kazutoshi Satoh, Hiroyuki Takayama
  • Patent number: 7674522
    Abstract: The invention relates to wood fiber insulating material boards and mats, in which the wood fibers and the binder fibers are aligned three-dimensionally. The fleece of wood fibers and binder fibers can alternatively have synthetic resin granules scattered on it. Likewise, a woven fabric or a film can be applied to one or both sides. The product obtained in this way is heated in a heating/cooling oven, calibrated and/or compacted to the desired final thickness.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: March 9, 2010
    Assignee: Kronotec AG
    Inventor: Cevin Marc Pohlmann
  • Patent number: 7674731
    Abstract: A fiber for thermal bonding comprising semicrystalline random copolymers of propylene, 1-hexene and optionally another ?-olefin, the amount of 1-hexene being from 0.75 to less 1.52 mol % (i.e. 1.5 to less than 3 wt %) with respect to the total weight of the copolymer. The said copolymers possess a value of melt flow rate (MFR) ranging from 4 to 35 g/10 min and a molecular weight distribution, in terms of the ratio between weight average molecular weight and numeric average molecular weight ( Mw/ Mn), ranging from 4 to 12.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: March 9, 2010
    Assignee: Basell Poliolefine Italia s.r.l.
    Inventors: Roberta Marzolla, Enrico Beccarini
  • Patent number: 7642208
    Abstract: A composite polymeric material is provided that may be used to construct an abrasion resistant layer or sheet such as an abrasion resistant meltblown layer. Desirably, the composite polymeric material comprises blends of syndiotactic and isotactic polypropylene with ferroelectric materials. The composite polymeric material is particularly useful for constructing a filter media comprising an abrasion resistant fine fiber layer such as a nonwoven layer. The composite polymeric material of the present invention also allows for electret treatment to improve its filtration characteristics.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: January 5, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jeffrey Lawrence McManus, David Grant Midkiff
  • Patent number: 7632765
    Abstract: Composite fibrous constructs are made of combinations of inorganic-organic hybrid monofilament or multifilament yarns containing at least 6 weight percent of inorganic micro-/nanoparticles and organic monofilament or multifilament yarn with typical examples of the hybrid yarn matrix made of absorbable or non-absorbable thermoplastic polymers and final constructs being in the form of knitted or woven meshes and braided ligatures intended to perform under specific mechanically, biologically, and/or radiologically related functions.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: December 15, 2009
    Assignee: Poly - Med, Inc.
    Inventors: Shalaby W Shalaby, Kenneth W Clinkscales, Kimberly A. Carpenter
  • Patent number: 7598187
    Abstract: A mat useful for reinforcing composite materials is made up of at least first and second sets of fibers, the first set of fibers laid as a ply in spaced apart parallel relationship in the direction of construction and the second set laid as a ply in spaced apart parallel relationship perpendicular to the direction of construction. These fibers define interstices, into which a continuous filament is knitted to provide stability. The filament has a core portion and a sheath portion, the sheath portion having a lower melting point than the core portion. The sheath portion is thermally fusible to form a plurality of closed loops in which the respective sets of fibers are entrapped. The fibers are glass or glass rovings and the filament is a polyester, the core portion being a high-viscosity poly(ethylene terephthalate) and the sheath portion being a low-viscosity poly(ethylene terephthalate).
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: October 6, 2009
    Assignee: The Garland Company, Inc.
    Inventors: Colin J. Hallam, Derrell M. Winowich, Louis Kevin Horne
  • Patent number: 7585796
    Abstract: A polypropylene based nonwoven fabric is excellent in surface appearance and stretch properties and exhibits a small residual strain and excellent adhesiveness to polyolefins. The nonwoven fabric is obtained by forming a polypropylene resin composition comprising 1 to 40 weight parts of (i) an isotactic polypropylene, and 60 to 99 weight parts of (ii) a propylene/ethylene/?-olefin copolymer obtained by copolymerizing 45 to 89 mole % of propylene, 10 to 25 mole % of ethylene and the balance of ?-olefin having 4 to 20 carbon atoms (with the proviso that the copolymerized amount of the ?-olefin having 4 to 20 carbon atoms does not exceed 30 mole %), characterized by a small residual strain after stretching at a stretch ratio of 150%. The nonwoven fabric can be effectively used as sanitary materials or the like by virtue of its characteristics including stretch properties.
    Type: Grant
    Filed: November 25, 2005
    Date of Patent: September 8, 2009
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kenichi Suzuki, Akio Matsubara, Shigeyuki Motomura
  • Patent number: 7575800
    Abstract: The present invention relates to sliding parts, precision parts and timepieces and electronic equipment using those parts. Sliding parts are composed by a resin in which the degree of orientation of a fibrous filler is higher at the portion serving as the sliding surface than inside the sliding part, and the fibrous filler is oriented along the sliding surface on the sliding surface. Alternatively, precision parts are composed by a resin to which has been added carbon fibers for which a carbon compound is thermally decomposed to carbon in the vapor phase and simultaneously grown directly into fibers simultaneous to this thermal decomposition. Moreover, timepieces and electronic equipment are composed by these sliding parts or these precision parts.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: August 18, 2009
    Assignees: Kitagawa Industries Co., Ltd., Seiko Instruments Inc.
    Inventors: Morinobu Endo, Tetsuo Uchiyama, Akio Yamaguchi, Teruaki Yuoka, Hiroshi Aoyama, Kazutoshi Takeda, Yoshifumi Maehara, Masato Takenaka, Koichiro Jujo, Shigeo Suzuki, Takeshi Tokoro
  • Patent number: 7504347
    Abstract: A fiber is obtainable from or comprises a propylene/?-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481-1629 (d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: March 17, 2009
    Assignee: Dow Global Technologies Inc.
    Inventors: Benjamin C. Poon, Yunwa W. Cheung, Shih-Yaw Lai, Ashish Sen, Hongyu Chen, Yuen-Yuen D. Chiu, Rajen M. Patel, Andy C. Chang, Antonios K. Doufas, Hong Peng
  • Patent number: 7470464
    Abstract: Described are fiber materials having improved malodor scavenger properties and a process for the manufacture of said materials. In particular, described are fiber materials usable in the manufacture of disposable or washable diapers, incontinent products, sanitary napkins and other such hygiene and personal care articles with improved malodor scavenger properties, and to methods of manufacturing such materials. It has been found that the incorporation of, especially nanosized, metal particles and/or a cyclodextrin material into fibers creates a “reactive” material having excellent malodor scavenging properties. More specifically, it has been found that the presence of nanosized metal or metal alloy particles and/or a cyclodextrin material in a fiber material, preferably a synthetic polymer material and more preferably a synthetic thermoplastic polymer fiber material leads to fiber materials or nonwovens having odor-controlling properties.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: December 30, 2008
    Assignee: Cellresin Technologies, LLC
    Inventors: Will Wood, Neil Beaverson
  • Patent number: 7468335
    Abstract: A meltblown web of polymeric polyester fibers, where the polyester polymer includes an aromatic dicarboxylic acid, a butanediol, and at least one additional branched or cycloaliphatic diol compound. The webs of the invention achieve high tensile strength values, and are particularly suitable for use as filter media.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: December 23, 2008
    Inventors: Robert H. Imes, Arvind G. Karandikar
  • Patent number: 7465489
    Abstract: This invention deals with a family of inorganic-organic hybrid, melt-extruded filaments having variable cross-sectional geometry with a cross-sectional area ranging between 100 ?2 and 4 mm2, wherein the inorganic component comprises at least 10 weight percent of the total system and is present as dispersed micro-/nanoparticles in an organic absorbable or non-absorbable matrix representing no more than 90 weight percent. Hybrid filaments are particularly useful for the production of absorbable/disintegratable coil components of an absorbable/disintegratable endoureteral stent and radiopaque surgical markers or sutures.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: December 16, 2008
    Assignee: Poly-Med, Inc.
    Inventors: Shalaby W Shalaby, Kenneth W Clinkscales, Kimberly A. Carpenter
  • Patent number: 7455902
    Abstract: A mixed polymer composite fiber including a carboxyalkyl cellulose and a galactomannan polymer or glucomannan polymer.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: November 25, 2008
    Assignee: Weyerhaeuser Company
    Inventors: S. Ananda Weerawarna, Mengkui Luo, Bing Su, Alena Michalek