Synthetic Material Patents (Class 57/255)
  • Publication number: 20100132327
    Abstract: A sewing thread comprising a first yarn that is a filament yarn made or a fire resistant polymer and a second yarn that is a synthetic and/or natural yarn. The sewing thread may also contain a third yarn that is a synthetic and/or natural yarn. The first, second, and third yarns each have a first twist in the same direction. The first, second, and third yarns are then combined to form the sewing thread using a second twist which is in the opposite direction of the first twist. No bonding agent is used in the sewable, fire resistant thread.
    Type: Application
    Filed: February 4, 2010
    Publication date: June 3, 2010
    Inventor: Robert S. Hegan, JR.
  • Publication number: 20100112325
    Abstract: A splittable conjugate fiber for obtaining a fiber structure excellent in denseness and bulkiness includes a polyamide resin composition and a fiber-forming polymer not having an affinity with the polyamide resin composition. The polyamide resin composition and the fiber-forming polymer are combined with each other in a fiber longitudinal direction. The polyamide resin composition contains aromatic polyamide and aliphatic polyamide. Preferably, the aromatic polyamide is a nylon MXD6 polymer, and the aliphatic polyamide is a nylon 6 polymer.
    Type: Application
    Filed: April 17, 2008
    Publication date: May 6, 2010
    Inventors: Hayato Iwamoto, Shinji Yoshida, Satoshi Kishi, Toru Ito
  • Publication number: 20100077717
    Abstract: Disclosed are a method of folding multiple filaments and a bundle of filament produced by the same. More particularly, the method of folding multiple filaments includes release-winding the filaments under a uniform release-winding tension, folding the released filaments in non-twisted states and winding the folded filaments to produce a bundle of filament, so as to effectively prevent some of the filaments in the bundle of filament from hanging down or becoming loose due to different tensions when the bundle of filament is release-wound for post processing. The bundle of filament includes a plurality of filaments folded together in non-twisted states and has a standard deviation in weight of the filaments per unit length of the bundle of filament ranging from 0.0001 to 0.01.
    Type: Application
    Filed: May 13, 2008
    Publication date: April 1, 2010
    Applicant: Kolon Tower
    Inventors: Chang-Bae Lee, Tae-Hak Park, Il Nam
  • Patent number: 7678718
    Abstract: A base layer apparel is provided that is formed from a single or double-knit fabric. The fabric is formed of ring spun fire resistant yarns that are an intimate blend of at least 60 percent modacrylic fibers and up to 40 percent fire-resistant viscose fibers. Anti-microbial and wicking treatments may be applied to the knit fabric.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: March 16, 2010
    Assignee: Longworth Industries, Inc.
    Inventors: William W. Harris, Tony G. Connor
  • Publication number: 20090320436
    Abstract: The invention relates to a rope made of a textile fibre material and present in the form of a core-sheath structure in a manner known per se. The rope according to the invention is characterized in that the specific strength of the rope Fs (in [daN/g core/m rope]) complies with the following formula depending on the diameter of the rope DM (in [mm]): Fs?212?DM.
    Type: Application
    Filed: March 30, 2007
    Publication date: December 31, 2009
    Applicant: Teufelberger Gesellschaft M.B.H.
    Inventors: Rudolf Kirth, Erich Ruhrnossl
  • Publication number: 20090318048
    Abstract: The invention provides yarns made of filaments of different average diameters, having excellent cut-resistance.
    Type: Application
    Filed: October 10, 2006
    Publication date: December 24, 2009
    Inventors: Serge Rebouillat, Stephen Donald Moore, Benoit Steffenino
  • Publication number: 20090308048
    Abstract: An unstretched filament composed of a PET-based aromatic polyester multifilament comprising a polyoxyalkylene-based polyether and an organic ionic compound is subjected to simultaneous stretching and false twisting under specified conditions to produce a polyester false twisted yarn, whereby rapid and stable false twisting can be accomplished without section deformation or fluff generation during false twisting, and the resulting yarn has a highly satisfactory hand quality and a fibrillation resistant fiber structure, while also exhibiting a highly durable antistatic property. Interlacing of the unstretched filament with an unstretched polyester filament comprising a polymethyl methacrylate-based polymer and/or polystyrene-based polymer and stretching/false twisting thereof under specified conditions allows rapid and stable production of conjugated false twisted yarn exhibiting highly satisfactory bulkiness and a spun feel with the absence of fluff, as well as a highly durable antistatic property.
    Type: Application
    Filed: July 11, 2007
    Publication date: December 17, 2009
    Applicant: TEIJIN FIBERS LIMITED
    Inventors: Masaaki Yanagihara, Suguru Nakajima
  • Publication number: 20090235629
    Abstract: The present invention relates to a mooring line comprising synthetic fibers, said mooring line having a length of at least 800 meters and being suitable to secure in place a water floating system, whereby the mooring line comprises at least a first and a second module, wherein at least the first and the second module have different compositions. The line according to the invention is suitable for use to secure in place a water floating system. The water floating systems may be a system floating on water or a system buoyant in water at a certain water depth, suitable examples including floating production storage and offloading vessels, spar buoys, semi-submersible or other hydrocarbon storage and/or processing and the like.
    Type: Application
    Filed: February 15, 2007
    Publication date: September 24, 2009
    Inventor: Rigobert Bosman
  • Patent number: 7188462
    Abstract: A process for making a high-strength spun yarn begins by feeding one or more tows of substantially uncrimped continuous filaments of high-modulus material having a tensile modulus exceeding about 20×106 psi through a high-speed stretch-breaking apparatus operating at low total draft ratio (preferably about 2.0) to break the filaments into high-modulus staple fibers having an average length in the range of about 5 to 6 inches. The tows advantageously are heavy, for example, having a denier of about 25,000 to about 500,000. Following the stretch-breaking step, the staple fibers are collected in sliver cans, and the staple fibers are advanced from the sliver cans to a spinning machine, where the fibers are spun into yarn. An important aspect of the invention is that no intermediate processes are performed between the stretch-breaking and spinning processes, which minimizes disruption of the alignment of and damage to the staple fibers.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: March 13, 2007
    Assignee: Stowe-Pharr Mills, Inc.
    Inventors: James Easton Hendrix, Donald Hershel Hamrick, Harold B. Edwards
  • Patent number: 7065950
    Abstract: A yarn, fabric and garment suitable for use in arc and flame protection contains modacrylic, p-aramid and m-aramid fibers.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: June 27, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Reiyao Zhu, Debbie Guckert, Susan L. Lovasic
  • Patent number: 6755226
    Abstract: A composite cord is provided which is simple in manufacture, highly productive, less costly, and improved in rubber penetration. The composite cord has a 1×n construction (n is an integer from 3 to 12) with 2 to 11 metallic filaments and 1 to 5 polymer fibers having a melting point of 50 to 200 degrees twisted together. The pneumatic tire employing this composite cord for its reinforcing element is restricted in rust formation and improved in strength retention.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: June 29, 2004
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Shinichi Miyazaki, Osamu Toda
  • Patent number: 6750162
    Abstract: An abrasion resistant and water resistant fabric is disclosed. The fabric is particularly well suited for use in constructing luggage. The fabric, however, is also well suited for many other applications, such as use in constructing sportswear, outdoor apparel, military apparel, and the like. The fabric is treated with a chemical composition. It has been discovered that the chemical composition greatly enhances the abrasion resistance of the fabric. In one embodiment, the fabric is made from nylon multifilament yarns.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: June 15, 2004
    Assignee: Safety Components Fabric Technologies, Inc.
    Inventors: Joey K. Underwood, T. Doyle Kelley
  • Publication number: 20040011017
    Abstract: A spun yarn comprising poly(trimethylene terephthalate) staple fibers at a content of at least 15% by weight, the spun yarn having an elastic recovery percentage of elongation at 5% elongation (%) ≧0.1X+70 (wherein X represents the content of poly(trimethylene terephthalate) staple fibers in the spun yarn (wt %)). The spun yarn is excellent in knitting and weaving characteristics, stretchability and stretch-back property and in shape stability and durability when worn for a prolonged period of time.
    Type: Application
    Filed: April 4, 2003
    Publication date: January 22, 2004
    Inventor: Yasunori Yuuki
  • Patent number: 6658835
    Abstract: The yarns of the invention include untwisted wrapped singles yarns having a core strand and a wrapper yarn. The wrapper yarn is a base synthetic fiber and a heat-activated binder fiber with a melting point substantially below that of the base synthetic fiber. The Saxony carpets of the invention are made from untwisted singles yarn tufts and are possessed of surface appearance, individual tip retention, pile density, resilient hand and wear resistance comparable or superior to conventional Saxony carpets made from multiple plied twist set yarns.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: December 9, 2003
    Assignee: Honeywell International Inc.
    Inventor: Charles Edward Bowers
  • Patent number: 6485829
    Abstract: A polyester composition is disclosed that is particularly suitable for filament. The composition is formed of polyethylene terephthalate; polyethylene glycol in an amount sufficient to increase the wetting and wicking properties of a filament made from the composition to a level substantially similar to the wetting and wicking properties of cotton and other cellulosic fibers (natural or synthetic) but less than the amount that would reduce the favorable elastic memory properties of the polyester composition; and a chain branching agent selected from the group consisting of trifunctional alcohols and acids and tetrafunctional alcohols and acids that will copolymerize with polyethylene terephthalate, the chain branching agent being present in an amount sufficient to raise the melt viscosity of the polyester composition to a level that permits filament manufacture under conditions that are substantially the same as those under which filament can be formed from unmodified polyethylene terephthalate.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: November 26, 2002
    Assignee: Wellman, Inc.
    Inventors: Carl S. Nichols, Billy Mack Humelsine
  • Publication number: 20020136859
    Abstract: Antistatic yarns, fabrics and carpets incorporating such antistatic yarns, and fiber blends for making such antistatic yarns are disclosed wherein the antistatic yarns are formed such that at least about 35 percent by weight of the staple fibers present are conductive staple fibers, quasi-conductive staple fibers, or mixtures of conductive and quasi-conductive staple fibers. Conductive staple fibers may include metal staple fibers, metal-coated non-conductive polymer staple fibers, carbon-loaded polymer staple fibers, polymer staple fibers loaded with antimony-doped tin oxide, conductive polymer solution-coated non-conductive polymer staple fibers, inherently-conductive polymer staple fibers, and bicomponent staple fibers. Quasi-conductive staple fibers may include bicomponent quasi-conductive staple fibers. Continuous fibers and non-conductive staple fibers may also be present.
    Type: Application
    Filed: June 2, 2000
    Publication date: September 26, 2002
    Applicant: SOLUTIA INC.
    Inventors: W. Keith Fisher , John J. Elliot
  • Patent number: 6354067
    Abstract: A process for producing dyed spun cotton yarns having a reduced number of irregularities and increased luster is described. The process involves dyeing at least a portion of the cotton fibers which are to form the yarn, then combing the dyed fibers subsequent to the dyeing process. The dyed and combed fibers are then optionally blended with fibers having a visually distinct appearance, and spun into a yarn using conventional spinning methods. The resulting yarns having a dramatically reduced number of thick and thin places and improved yarn properties including improved luster and hand. Furthermore, when the thus-dyed fibers are blended with differently-colored fibers prior to the combing operation, the resultant yarns match the visual colors of like-colored yarns produced by conventional processes, while the color is more intimately blended and the yarns have a markedly increased uniformity, luster and tenacity.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: March 12, 2002
    Assignee: Tuscarora Yarns, Inc.
    Inventor: Martin Boger Foil, Jr.
  • Patent number: 6132866
    Abstract: A staple yarn comprising a blend of 35 to 90 weight percent fluoropolymer fiber and 65 to 10 weight percent of one or more types of blend fiber.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: October 17, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Arthur Russell Nelson, Reginald Thomas Kruszewski
  • Patent number: 6032450
    Abstract: A method for producing an electrically conductive compound yarn. An electrically conductive monofilament metal thread is spun into a compound yarn together with textile fibers. A compound yarn of this type is particularly suitable for producing woven and knit materials.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: March 7, 2000
    Assignee: Spoerry & Co. AG
    Inventor: Fritz Blum
  • Patent number: 6010588
    Abstract: Novel fibers have been made of reactor grade isotactic poly-alpha-olefin wherein polypropylene is produced by single-site catalysis and has a melt flow rate of greater than zero to about 5,000, MWD in the range of about 1.0 to about 3.5.
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: January 4, 2000
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Glenn Allan Stahl, James John McAlpin
  • Patent number: 5910361
    Abstract: A hybrid yarn is made up of an intimate mixture of spun yarns of reinforcing fibers and spun yarns of thermoplastic matrix fibers. The spun yarns are obtained by cracking with slow, gradual stretching of the multifilaments. After stretching, parallel fibers are wrapped with a continuous thermoplastic filament. The invention may be used to produce hot-stamped parts.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: June 8, 1999
    Assignee: SA Schappe
    Inventors: Jean Guevel, Marc Francois, Guy Bontemps
  • Patent number: 5749212
    Abstract: A jet spun twistless core/wrapped elastic yarn product. The core yarn of the core/wrapped yarn is a unitary elastomeric filament. The core yarn is contiguously provided around the core with staple fibers. The inner portion of the staple fibers extends in the same direction as the elastomeric core and an outer wrapper portion of the staple fibers is helically wound around and holds the inner portion of the staple fibers on the core.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: May 12, 1998
    Assignee: Dixy Yarns, Inc.
    Inventors: John Joseph M. Rees, Leonard L. Hixon, Jr.
  • Patent number: 5624752
    Abstract: There is provided a spun yarn of a polybenzazole fiber having a single fiber fineness of 1 to 3 deniers and an average fiber length of 30 to 200 mm, the spun yarn having a tenacity of 15 g/d or higher and satisfying the following relationship:10.0.ltoreq.K.multidot.(L).sup.1/3 .ltoreq.15.0 (1)where K is the twist constant expressed by T/(Ne).sup.1/2 and L is the average fiber length in millimeter, and where T is the number of twist per inch and Ne is the British cotton count of the spun yarn. The spun yarn can be used for various purposes because it has high tenacity, high heat resistance, high flame retardance, good feeling, and good appearance.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: April 29, 1997
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventor: Toshiaki Hokudoh
  • Patent number: 5492758
    Abstract: The present invention is directed to a fiber blend useful in the manufacture of carpet yarn used for pile in carpet construction. The blend includes, by weight based on the weight of the total blend, about 40% to about 70% normally crimped fibers, about 5% to about 50% crimpset fibers and about 4% to about 40% high shrinkage fibers having a shrinkage value of from about 15% to about 50%. Carpets including pile yarn formed from the blends of the present invention exhibit superior resistance to watermarking as well as other desirable characteristics.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: February 20, 1996
    Assignee: Monsanto Company
    Inventors: William M. Baggett, Patrick Byrne, Michael R. Sargent
  • Patent number: 5478624
    Abstract: A synthetic yarn made from a blend of base fibers selected from the group consisting of polyester, nylon 6 and nylon 66, and 1-12 weight percent of a heat activated binder fiber having a melting point within the range of 165.degree.-190.degree. C., said binder fiber being made from a copolyamide which is derived from a mixture of 50 to 85 wt. % caprolactam, 0 to 40 wt. % hexamethylenediamine adipate or a combination of hexamethylenediamine and adipic acid, and optionally a salt selected from the group consisting of hexamethylenediamine dodecanedioate, hexamethylenediamine azeleate, hexamethylenediamine sebacate and hexamethylenediamine terephthalate; and a chain terminator selected from at least one of the group consisting of a fatty acid and a fatty amines, wherein said fatty acid or fatty amine include at least 14 carbon atoms.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: December 26, 1995
    Assignee: AlliedSignal Inc.
    Inventor: Robert A. Lofquist
  • Patent number: 5340650
    Abstract: A fiber comprising a vinyl alcohol units-containing polymer, said polymer being modified at the oxygen atoms of its alcoholic hydroxyl groups with a group represented by the following formula I ##STR1## wherein M represents a chelate-forming metal atom and R represents an alkyl group. The fiber has excellent resistance to hot water and wet heat and does not stick, adhere or shrink even when dyed at high temperatures or treated by steam ironing, thus proving to be of markedly high commercial value.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: August 23, 1994
    Assignee: Kuraray Company Limited
    Inventors: Kiyoshi Hirakawa, Izumi Watadani, Kazuhiko Tanaka, Masao Kawamoto, Takaaki Tanaka, Hirohumi Sano, Hayami Yoshimochi, Masahiro Sato
  • Patent number: 5313774
    Abstract: A blended staple fiber yarn having a high grade cotton yarn-like touch, hand and appearance and superior mechanical strength, abrasion resistance, flame resistance and scratching resistance is comprised of 30 to 80 parts by weight of extremely fine polyester staple fibers having a denier of 0.9 or less and 20 to 70 parts by weight of super high modulus staple fibers having a Young's modulus of 4000 kg/mm.sup.2 or more, and can be produced by a specific draft zone system spinning process in which individual filaments are drawn-cut and the resultant staple fibers are cohered to each other to form a spun yarn.
    Type: Grant
    Filed: July 23, 1992
    Date of Patent: May 24, 1994
    Assignee: Teijin Limited
    Inventors: Mitsuo Matsumoto, Nobuo Takahashi, Yoshiyuki Sasaki
  • Patent number: 5305593
    Abstract: Spun yarns are made at high speeds of up to 220 meters per minute, using spinning techniques in which air is used to twist the fibers of a three component blend, one component of which consists of staple fibers made from electrically conductive filaments having a denier no greater than 2.5 times the denier of the filaments of the other components.
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: April 26, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: David J. Rodini, Donald E. Hoffman
  • Patent number: 5215795
    Abstract: An shock-absorbing air bag for an automobile or aircraft, has a high heat and flame resistance and satisfactory mechanical strength and comprises a high density woven fabric composed of warps and wefts each comprising (a) 0 to 90% by weight of thermoplastic synthetic fibers, for example, polyester fibers, having a denier or 5 or less and a Young's modulus of 1300 kg/mm.sup.2 or less, and (b) 10 to 100% by weight of heat resistant organic fibers, for example, aramid fibers, having a denier of 2 or less and a thermal decomposition temperature of 300.degree. C. or more, the woven fabric preferably having a high cover factor of 1900 or more.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: June 1, 1993
    Assignee: Teijin Limited
    Inventors: Mitsuo Matsumoto, Nobuo Takahashi, Hideo Nakagawa, Masayuki Takahashi, Kunio Nishimura
  • Patent number: 5188892
    Abstract: Spun textile yarns from new polyester staple fiber, and downstream textile articles, such as fabrics and garments, made from such, and blends thereof, wherein the staple fiber is of intentionally mixed denier, the higher denier being about twice the lower denier. Such staple fiber and precursor tows are preferably made by spinning filaments of different deniers, and collecting them in the same filament bundle on the same spinning machine, from orifices/capillaries of different diameters and/or throughputs.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: February 23, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Teddy H. Grindstaff
  • Patent number: 5169467
    Abstract: According to the present invention, the ink occlusion material for writing utensils comprises a fiber bundle of a mixture of (a) and acrylic synthetic fiber and (b) at least one hydrophobic fiber selected from the group consisting of polyester fibers and polypropylene fibers in a weight ration of 20 to 70:80 to 30. The two fibers are drawn so as to show a sea-island form in the cross-section of the fiber bundle, spot-adhered by the partial melt-adhesion of the acrylic synthetic fiber, and the fiber bundle is twisted at a rate of 1 to 30 T/M.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: December 8, 1992
    Assignee: Kanebo, Ltd.
    Inventors: Kunihiko Komiya, Kenji Arai, Toshihiro Yamamoto
  • Patent number: 5087499
    Abstract: The present invention relates to improvements in puncture-resistant and medicinal treatment garments. Garments made from fibers such as KEVLAR.RTM. and designed to deter penetration of objects are subjected to an additional brushing step to enhance the fibers' abilities to prevent penetration of sharp needle-like penetrating objects. The fibers may also be coated with an abrasive material to further engage and deflect penetrating objects. In another aspect of the invention, the fibers may be coated with a disinfectant or pharmaceutical agent. The coated fibers, having the improved fiber structure resulting from the brushing step, may be used in fabrics to treat skin conditions, disinfect penetrating objects in puncture-resistant materials, or as a disinfecting prevention fabric for use in textiles in high risk infection areas such as hospitals and public facilities.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: February 11, 1992
    Inventor: Thomas M. Sullivan
  • Patent number: 5077126
    Abstract: Staple yarns of cotton and high modulus fiber are wet and then dried under tension to provide warp yarn for durable, abrasion resistant fabrics.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: December 31, 1991
    Assignee: E. I. Du Pont de Nemours & Company
    Inventor: James R. Green
  • Patent number: 5026603
    Abstract: Staple fibers having a crimp frequency in the range of 3 to 6 crimps per centimeter are mae by a process including a co-crimping step in which conductive and nonconductive filaments are crimped together.
    Type: Grant
    Filed: November 8, 1990
    Date of Patent: June 25, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: David J. Rodini
  • Patent number: 4991387
    Abstract: The present invention relates to a polyester and cotton blended yarn capable of obtaining a polyester and cotton blended fabric having a superior bulkiness and a soft touch, and a polyester staple fiber stock which is useful to obtain the blended yarn as a yarn having superior properties with regard to neps and a yarn uneveness. To obtain the above-mentioned polyester cotton blended yarn, a coarse denier staple fiber having a predetermined range of fineness and a fine denier staple fiber having a predetermined range of fineness are used, and a suitable number of staple fibers constituting the blended yarn and fiber lengths of the staple fibers are defined in the present invention.
    Type: Grant
    Filed: November 18, 1989
    Date of Patent: February 12, 1991
    Assignee: Teijin Limited
    Inventors: Mikio Tashiro, Akira Kimura, Tsukasa Kobayashi, Nobuharu Izawa, Tamio Mitamura, Sei Tanizawa
  • Patent number: 4970854
    Abstract: The ink occlusion material for writing utensils according to the present invention comprises a fiber bundle of a mixture of an acrylic synthetic fiber and at least one hydrophobic fiber selected from the group consisting of polyester fibers and polypropylene fibers in a weight ratio of 20 to 70: 80 to 30. The two fibers are drawn so as to show a sea-island form in the cross section of said fiber bundle and spot-adhered by the partial melt-adhesion of the acrylic synthetic fiber and the fiber bundle is twisted at a rate of 1 to 30 T/M.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: November 20, 1990
    Assignee: 501 Kanebo, Ltd.
    Inventors: Kunihiko Komiya, Kenji Arai, Toshihiro Yamamoto
  • Patent number: 4942089
    Abstract: Rapidly shrinking fibers hardly soluble in water and capable of shrinking in water at 20.degree. C. by not less than 30% in not longer than 10 seconds are obtained, for example, by spinning, drawing and heat-treating a carboxy-modified polyvinyl alcohol under specific conditions. Yarns made from a fiber of this kind in conjunction with a fiber slowing shrinking in water as well as nonwoven fabrics made by incorporating yarns containing said rapidly shrinking fibers in nonwoven fabric shrinkable upon absorption of water are suited as means of tightly fitting edge portions of disposable diapers to the thigh.
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: July 17, 1990
    Assignee: Kuraray Company Limited
    Inventors: Tsuneo Genba, Junichi Yoshinaka, Shingo Nakanishi
  • Patent number: 4918912
    Abstract: Spun yarns and fabrics having a high level of both abrasion and cut-resistance are disclosed. Such yarns are made from a blend of about 40-60 percent para-aramid fiber, about 20-40 percent nylon fiber, and about 10-30 percent acrylic fiber. The yarns and fabrics are particularly useful in making articles of clothing such as socks.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: April 24, 1990
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Grant H. Warner
  • Patent number: 4882222
    Abstract: A blend of conventional carpet fibers (e.g. nylon fibers) and high shrinkage fibers (e.g. acrylic fibers) is described. Saxony carpet made from the blend has better appearance retention characteristics than corresponding saxony carpet made from the conventional carpet fibers.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: November 21, 1989
    Assignee: Monsanto Company
    Inventors: Arthur Talley, Jr., Arnold E. Wilkie
  • Patent number: 4880691
    Abstract: Fine denier fibers and/or multi-filaments prepared from linear low density polyethylene copolymers (LLDPE) are found to offer advantages over other forms of polyolefins.
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: November 14, 1989
    Assignee: The Dow Chemical Company
    Inventors: Lawrence H. Sawyer, George W. Knight
  • Patent number: 4869951
    Abstract: A yarn which is a blend of from 98.01% by weight of a conventional textile fiber or filament and from 2 to about 0.09% by weight of a non-linear anti-static carbonaceous filament or fiber.
    Type: Grant
    Filed: February 17, 1988
    Date of Patent: September 26, 1989
    Assignee: The Dow Chemical Company
    Inventors: Francis P. McCullough, Jr., David M. Hall
  • Patent number: 4830907
    Abstract: Fine denier fibers and/or multi-filaments prepared from linear low density polyethylene copolymers (LLDPE) are found to offer advantages over other forms of polyolefins.
    Type: Grant
    Filed: November 6, 1984
    Date of Patent: May 16, 1989
    Assignee: The Dow Chemical Company
    Inventors: Lawrence H. Sawyer, George W. Knight
  • Patent number: 4809493
    Abstract: Rapidly shrinking fibers hardly soluble in water and capable of shrinking in water at 20.degree. C. by not less than 30% in not longer than 10 seconds are obtained, for example, by spinning, drawing and heat-treating a carboxy-modified polyvinyl alcohol under specific conditions. Yarns made from a fiber of this kind in conjunction with a fiber slowing shrinking in water as well as nonwoven fabrics made by incorporating yarns containing said rapidly shrinking fibers in nonwoven fabric shrinkable upon absorption of water are suited as means of tightly fitting edge portions of disposable diapers to the thigh.
    Type: Grant
    Filed: October 21, 1986
    Date of Patent: March 7, 1989
    Assignee: Kuraray Company Limited
    Inventors: Tsuneo Genba, Junichi Yoshinaka, Shingo Nakanishi
  • Patent number: 4771596
    Abstract: A fine heterogeneous hybrid spun yarn is blended from electrostatically conductive staple fibers and electrostatically non-conductive staple fibers so that the yarn is electrostatically conductive only over short discrete lengths. When used in pile fabrics, such as carpets, the fine yarn is introduced with at least some of the carpet facing yarns during the carpet making operations. The resultant carpet structure substantially eliminates electrostatic shock to a human walking across the carpet and approaching a ground such as a light switch, radio, or another person. Such a carpet does not constitute a dangerous floor covering.The unique heterogeneous hybrid spun blended yarn is achieved by process techniques completely contrary to accepted blending practices.
    Type: Grant
    Filed: June 12, 1972
    Date of Patent: September 20, 1988
    Assignee: Brunswick Corporation
    Inventor: William G. Klein
  • Patent number: 4729215
    Abstract: Improved yarn for manufacturing artificial fur, having underfur and guard hairs. The guard hairs have a multiplicity of staple fibers having tapered ends. The underfur fibers are shorter and of less denier. The guard hairs and underfur fibers are relatively longitudinally slidable to separate at least some of the fibers from others of the fibers.Temporary binding means may be connected to maintain the respective fibers in continuity and resistant to longitudinal sliding separation during one or more fabrication operations.Inactivation of the binding means breaks the continuity of said pile fibers whereupon at least some of the fibers may be longitudinally slidingly separated without being broken.
    Type: Grant
    Filed: October 28, 1986
    Date of Patent: March 8, 1988
    Assignee: Toray Industries, Inc.
    Inventors: Kenji Sato, Seiichi Yamagata, Masaaki Sakai
  • Patent number: 4712366
    Abstract: The present invention relates to a denier-mixed composite yarn containing 20 weight percent or more coarse filaments whose single filament fineness is 3 deniers or more and 5 weight percent or more fine filaments whose single filament fineness is 1.5 denier or less. Part or all of the coarse filaments are of non-circular cross-section, the stress of the composite yarn at 10% elongation is 2.5 g/d or less, and the composite yarn has a particular distribution of elongation. According to such denier-mixed composite yarn, superior dry feel fullness and softness can be imparted to woven and knit fabrics.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: December 15, 1987
    Assignee: Nippon Ester Co., Ltd.
    Inventors: Keizo Tsujimoto, Takashi Katagiri, Eiji Ichihashi, Hitoshi Otsubo
  • Patent number: 4698956
    Abstract: A continuous process of making a blended yarn of staple fiber and long-fiber or filamentary material in which the long-fiber or filamentary material is passed through a rupture zone to produce lengths thereof which are fed directly into an air stream with the staple fibers to produce an intimate blend which is conveyed by the air stream directly to an open end spinning device which produces the yarn.
    Type: Grant
    Filed: May 29, 1986
    Date of Patent: October 13, 1987
    Assignee: Gentex Corporation
    Inventors: Steven R. Clarke, John B. Price, Robert A. Sallavanti, Stephen P. Zawislak
  • Patent number: 4530206
    Abstract: A string for a tennis racket and having a composite cross-section structure aving a central reinforcing core comprising twisted Kevlar aromatic polyamide and glass yarns or Kevlar aromatic polyamide yarns, this core layer having a peripheral protective coating of a polyamide.
    Type: Grant
    Filed: September 2, 1983
    Date of Patent: July 23, 1985
    Assignee: Societe Anonyme D'Explosifs et de Produits Chimiques & Max Siguier
    Inventors: Alain Benichou, Max Siguier
  • Patent number: 4520623
    Abstract: An activated carbon fiber spun yarn having excellent workability and adsorptive property is disclosed. The activated carbon fiber spun yarn comprising activated carbon fibers having a specific surface area of 500 to 1,500 m.sup.2 /g, a ductility of at least 0.5%, and a tensile strength of at least 10 kg/mm.sup.2 and derived from acrylonitrile-based fibers. The spun yarn has a twist coefficient of 30 to 60.
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: June 4, 1985
    Assignee: Toho Beslon Co., Ltd.
    Inventors: Hiroyasu Ogawa, Kazuo Izumi, Kenji Shimazaki
  • Patent number: 4519201
    Abstract: The present invention relates to an improved process for blending together textile like fibers exhibiting a relatively high modulus of elasticity together with textile fibers exhibiting a relatively low modulus of elasticity which blend can further be converted into a high quality blended yarn structure. When the textile fibers exhibiting the relatively high modulus of elasticity are also electrically conductive, such as e.g. metal or carbon fibers, then the resulting yarns and fabrics can be designed with a predetermined level of electrical conductivity.
    Type: Grant
    Filed: September 8, 1982
    Date of Patent: May 28, 1985
    Inventor: John J. Toon