Synthetic Resin Or Polymer Patents (Class 428/394)
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Publication number: 20080003435Abstract: Faux fibers, more particularly faux fibers including a dye, methods for making such faux fibers and fibrous structures employing such faux fibers are provided.Type: ApplicationFiled: June 20, 2007Publication date: January 3, 2008Inventors: Arnold William Trueman, Kenneth Douglas Vinson
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Patent number: 7279220Abstract: The highly flame-retardant acrylic fiber of the invention comprises 1 to 20 weight % of a glycidyl methacrylate polymer and 1 to 20 weight % of antimony oxide in an acrylonitrile copolymer obtained with use of monomers containing 20 to 70 weight % of at least one halogen-containing monomer, and can be cross-linked by heating. The cross-linked fiber and a highly flame-retardant composite produced with it are rarely ignited and difficult to be perforated with flame.Type: GrantFiled: March 3, 2004Date of Patent: October 9, 2007Assignee: Kaneka CorporationInventors: Akio Nishino, Masahito Ohno
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Patent number: 7273501Abstract: A highly white and highly moisture absorptive and desorptive fibrous structure where a moisture absorptive and desorptive synthetic fiber having a saturated index of moisture absorption of 10% by weight or more at 20° C. and 65% RH is blended, characterised in that, degree of whiteness of said fibrous structure in terms of indication method described in JIS Z 8729 is that L* is 90 or more, a* is within a range of ±2 and b* is within a range of ±10 and durability of whiteness degree against washing after washing for ten times is class 3-4 or higher.Type: GrantFiled: July 15, 2002Date of Patent: September 25, 2007Assignee: Japan Exlan Company, LimitedInventors: Shigeru Nakashima, Jo Mizobe
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Patent number: 7247373Abstract: A racquet string includes a core component whose principal component is a synthetic fiber, and a surface resin component, wherein fullerenes or by-product carbon particles derived from manufacture of fullerenes are blended into the surface resin component, and wherein the blended percentage content is in a range of at least 0.01 wt % and at most 5.0 wt % of the entire string. The surface resin component may be formed as a sheath component by coating or by composite spinning. It is preferable that the amount of fullerenes or by-product carbon particles derived from the manufacture of fullerenes that is included in the surface resin component is in a range of at least 0.1 wt % and at most 25 wt %. Thus, the durability of the racquet string is improved without substantially changing its physical properties.Type: GrantFiled: February 10, 2005Date of Patent: July 24, 2007Assignee: Gosen Co., Ltd.Inventors: Kazuhiro Akagi, Kenichi Umano, Yutaka Masuda
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Patent number: 7247372Abstract: The invention relates to a filament excellent in incision resistance comprising as a primary component a polyethylene filament having a weight-average molecular weight of 300,000 or less and a ratio of a weight-average molecular weight to a number-average molecular weight (Mw/Mn) of 4.0 or less as determined in the state of a filament as well as a modulus of 500 cN/dtex or more, and to a fabric excellent in incision resistance, a fibrous material for reinforcing cement mortar or concrete, and a rope, each of which comprises the filament. The filament can be produced by drawing a non-drawn polyolefin filament which comprises a polyethylene having a weight-average molecular weight of 60,000-600,000, a ratio of a weight-average molecular weight to a number-average molecular weight (Mw/Mn) of 4.5 or less, and a rate of birefringence (?n) of 0.008 or more, at a temperature not higher than the ?-relaxation temperature of said non-drawn filament.Type: GrantFiled: April 4, 2003Date of Patent: July 24, 2007Assignee: Toyo Boseki Kabushiki KaishaInventors: Godo Sakamoto, Syoji Oda, Hiroki Murase
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Patent number: 7241495Abstract: The present invention is a process for producing a fiber, comprising: melt-extruding polyhydroxyalkanoic acid; solidifying the polyhydroxyalkanoic acid by quenching it to its glass transition temperature +15° C. or less, to form an amorphous fiber; cold-drawing the amorphous fiber at its glass transition temperature +20° C. or less; and subjecting the fiber to heat treatment under tension. The present invention can provide: a process for producing a fiber with high strength, and the fiber produced through the process; and a process for producing a fiber with high strength and high modulus of elasticity and the fiber with high strength and high modulus of elasticity produced through the process, regardless of molecular weights of PHAs varying depending on origins such as a wild type PHAs-producing microorganism product, a genetically modified product, and a chemical product.Type: GrantFiled: February 28, 2003Date of Patent: July 10, 2007Assignees: Riken, Japan Science and Technology AgencyInventors: Tadahisa Iwata, Yoshiharu Doi, Hideki Yamane
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Patent number: 7241498Abstract: Support based on organic and/or inorganic fibres covered at least on one of the faces thereof with a chitosan-based layer, characterized in that the layer is obtained by depositing a chitosan-based aqueous solution, the average molar mass of which has a mass less then 130 000 g/mol, the concentration of which is between 6 and 30% by weight and the viscosity of which is between 100 and 3000 cps.Type: GrantFiled: March 12, 2003Date of Patent: July 10, 2007Assignee: Ahlstrom CorporationInventors: Alain Domard, Eliane Espuche, Séverine Despond, Noël Cartier
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Patent number: 7223470Abstract: Drawn multi-filament polyethylene yarns and articles thereof having unique signatures in dynamic mechanical analysis reflective of unique microstructures, and having superior ballistic resistant properties.Type: GrantFiled: August 19, 2005Date of Patent: May 29, 2007Assignee: Honeywell International Inc.Inventors: Conor J. Twomey, Thomas Y-T. Tam, Ronald A. Moore
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Patent number: 7217760Abstract: A fluoropolymer-based water-and-oil repellant composition which comprises a copolymer comprising units derived from (a) an ethylenic monomer having a perfluoroalkyl group, (b) an ethylenic monomer having a group comprising an aromatic ring and a halogen atom or halogenomethyl group bonded thereto, and (c) an ethylenic monomer copolymerizable with these. The composition imparts excellent water and oil repellency through cold cure.Type: GrantFiled: March 6, 2002Date of Patent: May 15, 2007Assignee: Daikin Industries, Ltd.Inventors: Takuya Yoshioka, Masato Kashiwagi
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Patent number: 7214426Abstract: In a process for producing fine monofilaments having improved abrasion resistance from a polypropylene having a melt flow index (MFI)230° C./2.16 kg of 2–16 g/10 min at a linear density of 5–20 dtex (0.027 mm–0.053 mm), a compound consisting of 80 to 99.9% by weight of chips and 20 to 0.1% by weight of an additive is added to the extruder, the melt is spun at a speed of at least 1200 m/min, the fibre is cooled in an air bath at room temperature, supplementarily stretched at a temperature of 110–150° C. to a linear density of 5–20 dtex and wound up. The monofilaments comprising a polypropylene having a melt flow index (MFI)230° C./2.16 kg of 2–16 g/10 min, having improved abrasion resistance, and a linear density of 5–20 dtex (0.027 mm–0.053 mm) and an abrasion resistance score ?2. The monofilaments have a tenacity of at least 48 cN/tex and an elongation at break of less than 45% for a mechanical constant (constante méchanique) of at least 295 cN/tex and a specific work to break value of more than 61.Type: GrantFiled: October 12, 2004Date of Patent: May 8, 2007Assignee: Rhodia Industrial Yarns AGInventors: Gustav Schütze, Max Kurt
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Patent number: 7172810Abstract: Monofilaments comprising resin compositions which contain 1% by mass or more of a comonomer component (for example, hexafluoropropylene), have an intrinsic viscosity of 1.3 dl/g or more and a melting point of 165° C. or higher and contain a PVDF-based resin. Owing to the above composition and physical properties, the crystallinity and elastic modulus of the PVDF-based resin are altered. As a result, an appropriate flexibility can be imparted to the monofilaments while preventing deterioration in the mechanical properties.Type: GrantFiled: January 30, 2002Date of Patent: February 6, 2007Assignee: Kureha CorporationInventors: Satoshi Hashimoto, Shingo Taniguchi, Yasuhiro Tada, Masayuki Hino, Masaru Satou, Takeo Takahashi
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Patent number: 7153570Abstract: An optical fiber cord which is a single core optical fiber cord having an outer diameter of 1.2 mm or less, and has a structure in which an optical fiber core wire having a resin coating is provided at the center, a tensile-strength-fiber layer is provided around the outer periphery of the optical fiber core wire, and a coating layer is further provided around the outer periphery of the tensile-strength-fiber layer, wherein the coating layer is composed of a non-halogen fire-retardant resin, is disclosed. This optical fiber cord has excellent fire retardant, mechanical and handling properties, although the outer diameter thereof is made smaller.Type: GrantFiled: November 15, 2004Date of Patent: December 26, 2006Assignee: The Furukawa Electric Co., Ltd.Inventors: Fuminori Nakajima, Nobuhisa Ishii, Masao Tachikura, Shigenori Uruno, Hisashi Izumita, Hitoshi Ishimaru, Kuniaki Yamaguchi
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Patent number: 7141302Abstract: A suture material for surgery comprises one or more filaments and is formed with a coating, which is characterized in that the coating at least partly comprises a bioresorbable polymer, which is essentially formed from a random terpolymer with a completely amorphous structure.Type: GrantFiled: December 14, 2001Date of Patent: November 28, 2006Assignee: Deutsche Institute fur Textil-und Faserforschung Stuttgart Stiftung . . .Inventors: Erhard Mueller, Heinrich Planck, Sven Oberhoffner
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Patent number: 7141301Abstract: A high strength polyethylene filament, wherein said filament has a fineness of 1.5 dtex or less as a monofilament, a tensile strength of 15 cN/dtex or more and a tensile elastic modulus of 300 cN/dtex or more, and, the rate of dispersion-defective fibers cut from the filament is 2% or less, is disclosed, and a high strength polyethylene filament, wherein said filament has a tensile strength of 15 cN/dtex or more and a tensile elastic modulus of 300 cN/dtex or more, and, a long period structure of 100 ? or less is observed in an X-ray small angle scattering pattern is disclosed.Type: GrantFiled: April 15, 2005Date of Patent: November 28, 2006Assignee: Toyo Boseki Kabushiki KaishaInventors: Godo Sakamoto, Tooru Kitagawa, Syoji Oda, Yasuo Ohta
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Patent number: 7138178Abstract: A fiber having unique gloss of appearance (flickering gloss) with light diffusibility, while maintaining natural feeling of gloss necessary as fiber for hair, is provided. The present invention may be attained by an artificial fiber for hair obtained from an acrylic based synthetic fiber having a single fiber size of 20 dtex to 80 dtex, the fiber having a maximum reflectance to a white light of 15% to 36% in case of a fiber having less than 21 of L value, or of 36% to 70% in case of a fiber having not less than 21 of L value, and having an optical diffusion coefficient of not less than 0.25.Type: GrantFiled: July 14, 2003Date of Patent: November 21, 2006Assignee: Kaneka CorporationInventors: Kazuaki Fujiwara, Satoru Yoshimura
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Patent number: 7135228Abstract: Fibers having improved resistance to moisture at elevated temperatures comprise at least two elastic polymers, one polymer heat-settable and the other polymer heat-resistant, the heat-resistant polymer comprising at least a portion of the exterior surface of the fiber. The fibers typically have a bicomponent and/or a biconstituent core/sheath morphology. Typically, the core comprises an elastic thermoplastic urethane, and the sheath comprises a homogeneously branched polyolefin, preferably a homogeneously branched substantially linear ethylene polymer.Type: GrantFiled: July 15, 2002Date of Patent: November 14, 2006Assignee: Dow Global Technologies Inc.Inventors: Ashish Sen, John Klier, Rajen M. Patel, Hongyu Chen, Thoi H. Ho
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Patent number: 7135225Abstract: An object of the present invention is to provide an acrylic synthetic fiber having excellent stylability and heat resistance. The object may be attained by an acrylic synthetic fiber having a knot-like unevenness on a fiber surface thereof, a difference of distances between a depression and a projection of 5.0 micrometers to 15.0 micrometers, a distance between peaks of unevenness of 0.05 mm to 0.5 mm, a flexural rigidity value of the fiber of 7.0×10?7 N-m2/m to 10.0×10?7 N-m2/m, and a torsional rigidity value of the fiber of 5.0×10?9 N-m2 to 10.0×10?9 N-m2, and furthermore the object may be attained by an acrylic synthetic fiber comprising an acrylic copolymer having a content of acrylonitrile of not less than 60 mol %, a sulfur content originating in a vinyl based monomer including a sulfonic group of 0.15% by weight to 0.50% by weight, and a specific viscosity of 0.20 to 0.50.Type: GrantFiled: July 14, 2003Date of Patent: November 14, 2006Assignee: Kaneka CorporationInventors: Satoru Yoshimura, Kazuaki Fujiwara
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Patent number: 7132479Abstract: The present invention relates to polymer mixtures including hydrogel-forming polymers capable of absorbing aqueous fluids and prepared by polymerization of olefinically unsaturated carboxylic acids or derivatives thereof together with copolymers of C2–C8 olefins or styrenes with anhydrides and also their preparation, use and hygiene articles which include same.Type: GrantFiled: March 4, 2003Date of Patent: November 7, 2006Assignee: BASF AktiengesellschaftInventors: Friedrich Engelhardt, Rüdiger Funk, Mariola Wanior
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Patent number: 7128960Abstract: Several laminate materials are provided that are particularly useful for making furniture pieces. The laminate materials may include several interleaved wood veneer and carbon fiber layers. The thickness and characteristics of these layers are chosen so that the resultant material can be used either as a support member, such as a leg, that must withstand large tensile and/or compressive forces, or is thin and flexible, for example for making chair seats or backrest. Another laminate material includes a thick stiff core. This laminate material is used for furniture members that must resist warping, such as table tops.Type: GrantFiled: September 26, 2003Date of Patent: October 31, 2006Inventors: Kevin Randall Walz, Barry Richard Walz
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Patent number: 7122244Abstract: The present invention relates to a polyamideimide resin solution preparable by reacting (a) aromatic polycarboxylic acids and/or their anhydrides with (b) aromatic imide- and amide-forming components in cresol at temperatures above 170° C., to the use of this polyamideimide solution for the preparation of wire enamels, to the wire enamels in question, and to the enamelled wires coated therewith.Type: GrantFiled: August 27, 2001Date of Patent: October 17, 2006Assignee: Altana Electrical Insulation GmbHInventors: Sascha Tödter König, Klaus Wilhelm Lienert, Gerold Schmidt
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Patent number: 7115318Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.Type: GrantFiled: August 17, 2005Date of Patent: October 3, 2006Assignee: Honeywell International Inc.Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
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Patent number: 7108913Abstract: The present invention provides a highly reflective fluorescent polymer composition comprising a benzoxzolyl naphthalene optical brightener and a polymeric substrate support material formed into three dimensional articles or fibers. The enhanced light reflectivity of the instant compositions occurs over a wavelength range of from about 400 to 700 nanometers. The fiber embodiment comprises a body or support portion made of a flexible and durable thermoplastic material which is at least partially translucent and bis(benzoxazolyl)napthalenes optical brightener molecularly dispersed throughout the polymeric body potion of the fiber. The fibers are fluorescent to a UV source and can be effectively utilized for artificial hair for toy dolls as well as for various other textile applications.Type: GrantFiled: May 9, 2005Date of Patent: September 19, 2006Assignee: Mattel, Inc.Inventors: Abimael Cordova, Jason Kroskrity
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Patent number: 7090715Abstract: Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of useful applications including the formation of filter materials.Type: GrantFiled: September 30, 2003Date of Patent: August 15, 2006Assignee: Donaldson Company, Inc.Inventors: Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik
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Patent number: 7087300Abstract: Fire retardant and heat resistant yarns, fabrics, and other fibrous blends incorporate one or more fire retardant and heat resistant strands comprising oxidized polyacrylonitrile and one or more strengthening filaments such as metallic filaments (e.g., stainless steel), high strength ceramic filaments, or high strength polymer filaments. Such yarns, fabrics, and other fibrous blends have a superior tensile strength, cut resistance, abrasion resistance, LOI, TPP and continuous operating temperature compared to conventional fire retardant fabrics. The yarns, fabrics, and other fibrous blends are also more soft, supple, breathable and moisture absorbent and are therefore more comfortable to wear, compared to conventional fire retardant fabrics. The inventive yarns may be woven, knitted or otherwise assembled into a desired fabric or other article of manufacture.Type: GrantFiled: August 24, 2004Date of Patent: August 8, 2006Assignee: Chapman Thermal Products, Inc.Inventors: William J. Hanyon, Michael R. Chapman
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Patent number: 7081297Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.Type: GrantFiled: July 11, 2005Date of Patent: July 25, 2006Assignee: Honeywell International Inc.Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
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Patent number: 7081298Abstract: This invention is to provide yarns including fishing lines which contain ultra-high molecular weight polyethylene filaments with low elongation rate, adjustable specific gravity and excellent abrasion resistance, and to provide a method for manufacturing the same.Type: GrantFiled: October 10, 2002Date of Patent: July 25, 2006Assignee: Yoz-Ami CorporationInventor: Shigeru Nakanishi
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Patent number: 7081299Abstract: The present invention is a meltblown fiber and a fabric manufactured from the fiber comprising reactor grade polypropylene having a melt flow rate of from 100 to 5000 and having less than 50 stereo defects per 1000 units. Further, the polypropylene is typically produced from a metallocene catalyzed process, the metallocene being at least one bridged 2,4 di-substituted indenyl metallocene in one embodiment, and a bridged 4-phenyl indenyl metallocene in another embodiment. The metallocene is part of a system that can include a fluorided support and a non-coordinating anion activator.Type: GrantFiled: August 22, 2001Date of Patent: July 25, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventor: Galen Charles Richeson
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Patent number: 7078099Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.Type: GrantFiled: August 17, 2005Date of Patent: July 18, 2006Assignee: Honeywell International Inc.Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
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Patent number: 7078096Abstract: There are provided a process for producing a polyester fine multifilament yarn having a single filament fineness of 0.9 dtex or below, a total number of single filaments of 100 to 400 and a birefringence of 0.03 to 0.06 comprising passing polymer streams of a polyester polymer melt extruded from a spinneret surface through an atmosphere wherein a distance of 0 to 40 mm from the spinneret surface is regulated to a temperature within the range of 100 to 300° C., further cooling the polymer streams and then converging the cooled filaments into a filament bundle at a position of 350 to 500 mm from the spinneret surface; a process for producing a polyester fine false twist textured yarn comprising subjecting a polyester fine multifilament yarn having a single filament fineness of 0.9 dtex or below, a total number of single filaments of 100 to 400 and a bifringence of 0.03 to 0.Type: GrantFiled: April 25, 2003Date of Patent: July 18, 2006Assignee: Teijin Fibers LimitedInventors: Masahiro Konishi, Satoshi Nagamune, Hiroyuki Osaka
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Patent number: 7078097Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.Type: GrantFiled: August 17, 2005Date of Patent: July 18, 2006Assignee: Honeywell International Inc.Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
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Patent number: 7074483Abstract: Disclosed is a method of forming multifilament polyolefin yarns and yarns formed according to the disclosed method. The yarns can be polypropylene yarns and can exhibit any of a high modulus, high tenacity, and a unique crystalline structure for multifilament polyolefin yarns. The process can generally include extruding a polymeric melt including the polyolefin at a relatively high throughput and low spinline tension and quenching the filaments in a liquid bath prior to drawing the fiber bundle at a relatively high draw ratio, for example greater than 10, in some embodiments.Type: GrantFiled: November 5, 2004Date of Patent: July 11, 2006Assignee: Innegrity, LLCInventor: Brian G. Morin
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Patent number: 7067189Abstract: An adhesion promoter comprises a polymeric strand with an epoxy-reactive group other than a phenolic hydroxyl group, and a crosslinking group that crosslinks the polymeric strand with a rubber in a crosslinking reaction, wherein the polymeric strand is water soluble in an amount of at least 10 g/l, and more preferably at least 100 g/l. Particularly contemplated adhesion promoters may further comprise styrene-butadiene-vinylpyridine copolymer, and may advantageously be employed as a replacement for resorcinol-formaldehyde latex in the fabrication of a rubber containing tire. Especially contemplated rubber compositions may additionally comprise maleinized polybutadiene to synergistically improve adhesion of the rubber to a polymeric fiber coupled via contemplated adhesion promoters.Type: GrantFiled: July 8, 2004Date of Patent: June 27, 2006Assignee: Performance Fibers, Inc.Inventors: Truc-Chi Huynh-Tran, Huy X. Nguyen
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Patent number: 7060354Abstract: A dental floss comprising a porous PTFE fiber having a density of less than about 0.7 g/cc. The inventive floss is abrasion resistant, grippable and has a soft feel to the hands and a rough feel in the mouth. The floss is made by an extrusion process with non-contact heating during subsequent expansion with amorphous locking.Type: GrantFiled: January 9, 2003Date of Patent: June 13, 2006Assignee: Gore Enterprise Holdings, Inc.Inventors: Richard L. Baillie, James H. Chastain, John W. Dolan, William Hammond Wiley
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Patent number: 7056579Abstract: A high strength polyethylene filament having tenacity of at least 15 cN/dTex, which comprises a polyethylene having a weight-average molecular weight of 300,000 or less and a ratio of a weight-average molecular weight to a number-average molecular weight (Mw/Mn) of 4.0 or less as determined in a state of the filament, and containing 0.01 to 3.0 branched chains per 1,000 backbone carbon atoms. When cut fibers are obtained by cutting the polyethylene filament, a rate of dispersion-defective fibers is 2.0% or less.Type: GrantFiled: August 2, 2002Date of Patent: June 6, 2006Assignee: Toyo Boseki Kabushiki KaishaInventors: Godo Sakamoto, Syoji Oda, Yoshihiko Teramoto
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Patent number: 7045209Abstract: The present invention discloses novel fibers for use as secondary reinforcement materials in cementitious composites, which fibers are effective in preventing cracking far better than prior art fibers. Also disclosed are methods of producing the fibers and methods for producing cementitious composite containing the fibers.Type: GrantFiled: March 28, 2000Date of Patent: May 16, 2006Inventor: Dror Selivansky
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Patent number: 7041368Abstract: Improvements in permitting greater efficiency for high denier polypropylene fiber and yarn production are provided. Generally, spinning speeds are limited for polypropylene fibers and yarns as such materials tend to break easily upon exposure to excessively high tensions associated with low- to medium-spinning speeds. As spinning is required to properly draw such high denier fibers sufficiently for fiber and yarn production, such limitations effectively prevent widespread utilization of such fibers and yarns in various end-use applications. Thus, it has been surprisingly been determined that such high denier manufactured fibers and yarns can be produced with certain nucleating additives that permit tensile strength increases to the level required for high-speed spinning procedures to be followed. Additionally, low-shrink and/or better resiliency properties are also available with the addition of such nucleating compounds within the target high denier polypropylene resins.Type: GrantFiled: November 17, 2002Date of Patent: May 9, 2006Assignee: Milliken & CompanyInventors: Martin E. Cowan, Brian G. Morin
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Patent number: 7039322Abstract: An optical communication apparatus comprises an optical transmitter (1) which emits light signals corresponding to external electric signals (11) using light emitted from a short-wavelength light-emitting element (14) such as a yellow light-emitting diode of maximum wavelength in a range of 560–590 nm or a green light-emitting diode of maximum wavelength in a range of 490–550 nm; a plastic fiber (2) including a methacrylate polymer core free from benzene rings and having one end connected optically with the short-wavelength light-emitting element (14), the core containing less than 5 ppm free sulfur; and an optical receiver (3) having a photodetector element (31) connected optically with the other end of the plastic fiber (2) and adapted to producing an output electric signal (35) in accordance with the output from the photodetector element (31).Type: GrantFiled: November 21, 1999Date of Patent: May 2, 2006Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Tomonari Yoshimura, Noritaka Saito, Akimitsu Okita
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Patent number: 7026435Abstract: Polymer derivatives based upon polyalkyleneimine backbones having from about 20% to about 60% of their reactive amino functionalities substituted by C14-20 carboxylic acids, are disclosed. Fiber lubricants and/or sizing compositions comprising such polymer derivatives are also disclosed. The disclosed fiber lubricants exhibit excellent affinity for fiberglass fibers and have excellent hydrophobicity, while also providing excellent lubrication. Methods for preparing said derivatives are also disclosed. Also disclosed are methods for treating fibers using the polymer derivatives.Type: GrantFiled: June 6, 2001Date of Patent: April 11, 2006Assignee: Cognis CorporationInventors: Douglas F. Fry, Frank Norman Tuller
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Patent number: 7021349Abstract: The present spin finish composition comprises at least about 10 percent by weight based on the spin finish composition of components (a) and (b) having the formula R1—(CO)x—O—(CH(R2)—CH2—O)y—(CO)z—R3 wherein each of R1 and R3 is selected from the group consisting of hydrogen or an alkyl group having from one to 22 carbon atoms or an alkylene hydroxy group having from one to 22 carbon atoms, x is zero or one, R2 may vary within component (a) or component (b) and is selected from the group consisting of hydrogen or an alkyl group having from one to four carbon atoms, y is zero, or from one to 25, and z is zero or one, in component (a), x and z are equal to zero and the average molecular weight of component (a) is less than or equal to 1,900 and if R2 varies, component (a) is a random copolymer; and in component (b), at least x or z is equal to one or component (b) is a complex polyoxyethylene glyceride-containing compound having greater than 10 polyoxyethylene units; up to about five percent by weight baseType: GrantFiled: September 3, 2004Date of Patent: April 4, 2006Assignee: Performance Fibers, Inc.Inventor: Ralf Klein
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Patent number: 7019103Abstract: A terminal-crosslinkable polyamic acid oligomer having 1) heat resistance indicated by Tg of 300° C. or more and a pyrolysis temperature of 500° C. or more, 2) toughness, and 3) capability of allowing an increase in concentration. The polyamic acid oligomer is obtained by reacting an aromatic tetracarboxylic dianhydride including 2,2?,3,3?-biphenyltetracarboxylic dianhydride, an aromatic diamine compound, and a reactive crosslinking agent including an amino group or acid anhydride group and a crosslinkable group in the molecule, and includes a crosslinkable group at the molecular terminal.Type: GrantFiled: May 5, 2004Date of Patent: March 28, 2006Assignees: JSR Corporation, Ube Industries, Ltd.Inventors: Rikio Yokota, Kohei Goto, Hideki Ozawa
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Patent number: 6998443Abstract: Moisture curable flame retardant insulation compositions for wire and cable having improved adhesion are provided. The compositions are comprised of an ethylene-silane copolymer, high density polyethylene resin, halogenated flame retardant, silanol condensation catalyst and stabilizer combination consisting of a zinc mercaptobenzimidazole and aromatic secondary amine.Type: GrantFiled: September 2, 2003Date of Patent: February 14, 2006Assignee: Equistar Chemicals, LPInventors: Lester Y. Lee, Jeffrey S. Borke, Steven W. Horwatt
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Patent number: 6994913Abstract: The present invention presents a thermoplastic elastomer that exhibits superior moisture permeability, excellent flexibility and mechanical properties at a high temperature, particularly settling resistance at a high temperature, and excellent moisture permeability. The thermoplastic elastomer includes, as a constituting unit, a polyether component (A) and a polyester component (B), wherein the polyether component (A) includes poly-oxyalkylene groups (—CnH2nO—) having a carbon/oxygen atomic ratio in a range from 2.0 to 2.5, the polyester component (B) has a number-average molecular weight in a range from 500 to 10,000, the thermoplastic elastomer has a content of polyether component (A) in a range from 50 to 95 weight %, and the thermoplastic elastomer has a glass transition temperature of not more than ?20° C.Type: GrantFiled: September 29, 2000Date of Patent: February 7, 2006Assignee: Sekisui Chemical Co., Ltd.Inventors: Akihiro Niki, Hirotake Matsumoto, Akihiko Fujiwara, Yasuhiro Nakatani, Shoji Nozato
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Patent number: 6986899Abstract: A composition for coating an implantable prosthesis, such as a stent is disclosed. A method of forming the composition is also disclosed.Type: GrantFiled: August 12, 2003Date of Patent: January 17, 2006Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Syed F. A. Hossainy, Debbie Sanders-Millare, Steven Z. Wu
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Patent number: 6969553Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.Type: GrantFiled: September 3, 2004Date of Patent: November 29, 2005Assignee: Honeywell International Inc.Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
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Patent number: 6958187Abstract: High strength polyethylene fibers and their applications, for example, chopped fibers, ropes, nets, ballistic materials or items, protective gloves, fiber reinforced concrete products, helmets, and other products obtained therefrom, in which the fiber is characterized in that: it contains a high molecular weight polyethylene consisting essentially of a repeating unit of ethylene; it has an intrinsic viscosity number of 5 or larger and an average strength of 22 cN/dtex or higher; and the measurement of the fiber by differential scanning calorimetry (DSC) exhibits a temperature-increasing DCS curve having at least one endothermic peak over a temperature region of 140° C. to 148° C. (on the low temperature side) and at least one endothermic peak over a temperature region of 148° C.Type: GrantFiled: April 2, 2003Date of Patent: October 25, 2005Assignee: Toyo Boseki Kabushiki KaishaInventors: Yasuo Ohta, Godo Sakamoto, Tadayo Miyasaka, Takayoshi Okano, Junichi Nakahashi, Yukihiro Nomura, Takuya Konishi
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Patent number: 6955850Abstract: Polymeric structures, methods for making same, fibrous structures comprising same and product incorporating same are provided.Type: GrantFiled: April 29, 2004Date of Patent: October 18, 2005Assignee: The Procter & Gamble CompanyInventors: David William Cabell, Paul Dennis Trokhan, David Warren Loebker
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Patent number: 6951685Abstract: A method for the production of films/fibers of UHMWPE below 3 mils and preferably about 2 mils in thickness. The process involves calendering and/or drawing the materials of the prior art under careful tension control at a temperature above the melting point of the UHMWPE material. Before and after subsequent slitting, and/or fibrillation, UV resistance treatments, etc the thin films/fibers thus produced find use in such diverse applications as personal armor, dental floss, and sails for sail boats.Type: GrantFiled: August 25, 2004Date of Patent: October 4, 2005Assignee: Integrated Textile Systems, Inc.Inventors: Gene C. Weedon, Charles Paul Weber, Jr., Kenneth C. Harding
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Patent number: 6943231Abstract: Transparent polyamide molding materials are provided which are characterized in that they have a melting enthalpy between 0 and 12 J/g and the polyamides are constituted of 100 mole-% of a diamine mixture having 10-70 mole-% of PACM [bis-(4-amino-cyclohexyl)-methane] with less than 50 wt.Type: GrantFiled: June 2, 2003Date of Patent: September 13, 2005Assignee: EMS-Chemie AGInventor: Friedrich Severin Bühler
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Patent number: 6926962Abstract: The invention provides dyed yarn characterized by comprising dyed polytrimethylene terephthalate fiber, having an elastic recovery of 60% or greater under 10% elongation, and having a boiling water shrinkage of no greater than 4%. The dyed yarn of the invention has excellent stretchability and dimensional stability as well as a soft feel, and is therefore suitable for use in fabrics.Type: GrantFiled: May 17, 2001Date of Patent: August 9, 2005Assignee: Asahi Kasei Kabushiki KaishaInventors: Hiroshi Yamazaki, Kazuto Oue, Mitsuyuki Yamamoto
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Patent number: 6924329Abstract: A water- and oil-repellent, antistatic composition comprises (a) at least one polymeric salt consisting of (i) at least one cation having at least one polyoxyalkylene moiety bonded to a cationic nitrogen center, and (ii) at least one weakly coordinating anion, the conjugate acid of the anion having an acidity greater than or equal to that of a hydrocarbon sulfonic acid; (b) at least one fluorochemical repellent; and (c) at least one insulating material. The composition exhibits good antistatic and repellency characteristics.Type: GrantFiled: November 5, 2001Date of Patent: August 2, 2005Assignee: 3M Innovative Properties CompanyInventors: Thomas P. Klun, William M. Lamanna