Bicomponent, Conjugate, Composite Or Collateral Fibers Or Filaments (i.e., Coextruded Sheath-core Or Side-by-side Type) Patents (Class 428/373)
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Patent number: 9758925Abstract: To prepare a shaped product comprising a thermal adhesive fiber under moisture and having a fiber aggregate nonwoven structure. In the shaped product, the thermal adhesive fibers under moisture are melted to bond to fibers constituting the fiber aggregate nonwoven structure and the bonded fiber ratio is not more than 85%. The shaped product has an apparent density of 0.05 to 0.7 g/cm3, a maximum bending stress of not less than 0.05 MPa in at least one direction, and a bending stress of not less than ? of the maximum bending stress at 1.5 times as large as the bending deflection at the maximum bending stress. The moistenable-thermal adhesive fiber may be a sheath-core form conjugated fiber comprising a sheath part comprising an ethylene-vinyl alcohol-series copolymer and a core part comprising a polyester-series resin. Such a shaped product can be used for a building board or the like since the shaped product has a high bending stress although the product is light and has a low density.Type: GrantFiled: March 26, 2007Date of Patent: September 12, 2017Assignee: Kuraray Co., Ltd.Inventors: Tomoaki Kimura, Yasuro Araida, Toru Ochiai, Sumito Kiyooka
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Patent number: 9700656Abstract: Systems and methods related to polymer foams are generally described. Some embodiments relate to compositions and methods for the preparation of polymer foams, and methods for using the polymer foams. The polymer foams can be applied to a body cavity and placed in contact with, for example, tissue, injured tissue, internal organs, etc. In some embodiments, the polymer foams can be formed within a body cavity (i.e., in situ foam formation). In addition, the foamed polymers may be capable of exerting a pressure on an internal surface of a body cavity and preventing or limiting movement of a bodily fluid (e.g., blood, etc.).Type: GrantFiled: September 22, 2014Date of Patent: July 11, 2017Assignee: Arsenal Medical, Inc.Inventors: Upma Sharma, Irina Gitlin, Gregory T. Zugates, Adam Rago, Parisa Zamiri, Rany Busold, Toby Freyman, Robert J. Caulkins, Quynh P. Pham, Changchen You, Jeffrey D. Carbeck
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Patent number: 9633579Abstract: Disclosed are fibers which contains identification fibers. The identification fibers can contain a plurality of distinct features, or taggants, which vary among the fibers and/or along the length of the identification fibers, a fiber band, or yarn. The disclosed embodiments also relate to the method for making and characterizing the fibers. Characterization of the fibers can include identifying distinct features, combinations of distinct features, and number of fibers with various combinations of distinct features and correlating the distinct features to supply chain information. The supply chain information can be used to track the fibers, fiber band, or yarn from manufacturing through intermediaries, conversion to final product, and/or the consumer.Type: GrantFiled: June 24, 2015Date of Patent: April 25, 2017Assignee: Eastman Chemical CompanyInventors: Andrew Ervin McLeod, Scott Gregory Gaynor, Steven Anthony Wilson, Lydia Juanita Salyer, Humberto Collazo, Larry Wayne Renfro, Jeremy Kenneth Steach, Brian Douglas Seiler, Clarissa Tatum
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Patent number: 9624608Abstract: A denim fabric with high tenacity and/or moisture management and/or stretch materials is provided. Proportions of materials in the denim fabric may vary during the weave of the fabric to create different performance zones in the resulting garment with or without assembling different fabric pieces.Type: GrantFiled: February 14, 2013Date of Patent: April 18, 2017Assignee: NIKE, Inc.Inventors: John F. Martin, LaShurya M. Wise
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Patent number: 9580847Abstract: Provided is a porous laminate having satisfactory resistance to a mechanical load such as a bending stress while maintaining the characteristics of a porous structure. A porous laminate includes: a layer A formed on a support, the layer A including a porous film containing polymer nanofibers; and a layer B formed on the layer A, the layer B including a porous film containing polymer nanofibers, in which: an existence ratio of the polymer nanofibers contained in the layer A) is larger than an existence ratio of the polymer nanofibers contained in the layer B; and a difference between the existence ratio of the polymer nanofibers contained in the layer A and the existence ratio of the polymer nanofibers contained in the layer B is more than 40%.Type: GrantFiled: August 27, 2015Date of Patent: February 28, 2017Assignee: CANON KABUSHIKI KAISHAInventors: Kenji Takashima, Tetsuo Hino, Kazuhiro Yamauchi
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Patent number: 9566368Abstract: The present disclosure relates to compositions useful in synthetic bone graft applications. Particularly, the disclosure teaches moldable bone graft compositions, methods of making said compositions, and methods of utilizing the same.Type: GrantFiled: November 12, 2015Date of Patent: February 14, 2017Assignee: Bioventus, LLCInventors: John E. Brunelle, Russell L. Cook, Duraid S. Antone
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Patent number: 9556541Abstract: Fibers comprising a first thermoplastic composition having a softening temperature up to 120° C and a curable resin. Also disclosed are compositions comprising a plurality of fibers, with some of the fibers comprising a first thermoplastic composition having a softening temperature up to 120° C and some of the fibers comprising a curable resin. The fibers have an aspect ratio of at least 2:1 and a maximum cross-sectional dimension up to 60 micrometers. Fluid compositions containing the fibers and methods of contacting a subterranean formation using the fibers are also disclosed.Type: GrantFiled: December 21, 2009Date of Patent: January 31, 2017Assignee: 3M Innovative Properties CompanyInventors: Michael R. Berrigan, James G. Carlson, Michael D. Crandall, Clayton A. George, Ignatius A. Kadoma, Yong K. Wu
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Patent number: 9445542Abstract: The invention relates to a cutting wire (10) which is intended for a vegetation-cutting or -trimming device. The inventive wire comprises a core (12) which is surrounded by a skin (14). The invention is characterised in that: the core is made from a polyamide or a copolyamide; the skin is made from a polyamide or a copolyamide which is different from that of the core and which has a melting point above that of the core, such as to limit the occurrences of sticking, particularly caused by friction, in relation to the normal occurrences of sticking produced with the core material; and the outer surface of the skin is smooth. The risks of sticking and, in particular, of one wire sticking to another wire, under the effect of heating of different origins, regardless of whether the wire is in a coil or in strands, are significantly reduced or even eliminated without disturbing the production process or altering the performances of the wire.Type: GrantFiled: May 14, 2004Date of Patent: September 20, 2016Assignee: Speed FranceInventor: Emmanuel Legrand
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Patent number: 9412488Abstract: To provide an electric cable that can satisfy flame retardancy and battery fluid resistance in the CHFUS region provided in ISO 6722 and also satisfy wear resistance and low-temperature impact property by using a halogen-containing flame retardant. An electric cable in which a coat layer is formed of a resin composition that includes (A) 55 to 85 parts by mass of a polypropylene homopolymer, (B) 5 to 20 parts by mass of a polypropylene-based modified resin, (C) 5 to 20 parts by mass of a polyolefin-based copolymer, and (D) 5 to 15 parts by mass of a modified olefin-based elastomer, respectively and further includes 1 to 45 parts by mass of a metal hydroxide and 10 to 80 parts by mass of a halogen-containing flame retardant based on 100 parts by mass of the resins (A), (B), (C), and (D) in total.Type: GrantFiled: February 24, 2012Date of Patent: August 9, 2016Assignee: YAZAKI CORPORATIONInventor: Kousuke Kogo
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Patent number: 9358486Abstract: Disclosed is a method of characterizing a fiber sample comprising standard fibers and identification fibers which can be used for tracking and tracing fibers through at least part of the supply chain. Each identification fiber exhibits at least one distinct feature. Each group of distinguishable identification fibers can exhibit a taggant cross-section shape, a taggant cross-section size, or combination of the same taggant cross-section shape and same taggant cross-section size. The distinct features and the number of fibers in each group of distinguishable identification fibers can represent at least one supply chain component of the fibers. The fiber sample can include a portion of an acetate tow band or a filter made from the acetate tow band, and the supply chain information can include the manufacturer of the acetate tow band and the customer of the acetate tow band.Type: GrantFiled: June 24, 2015Date of Patent: June 7, 2016Assignee: Eastman Chemical CompanyInventors: Andrew Ervin McLeod, Scott Gregory Gaynor, Steven Anthony Wilson, Humberto Collazo, Larry Wayne Renfro, Brian Douglas Seiler
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Patent number: 9356272Abstract: A polyolefin-based split-type conjugate fiber according to the present invention is a polyolefin-based split-type conjugate fiber obtained by composite spinning including a first component containing a polypropylene-based resin and a second component containing a polyolefin-based resin, wherein the first component contains, as a primary component, a polypropylene resin having a Q value (the ratio between the weight average molecular weight Mw and the number average molecular weight Mn) of 6 or greater and a melt flow rate according to JIS K 7210 (MFR at a measurement temperature of 230° C. under a load of 2.16 kgf (21.18 N)) of 5 g/10 min or greater and less than 23 g/10 min, and the first component and the second component are adjacent to each other in a cross section of the polyolefin-based split-type conjugate fiber.Type: GrantFiled: March 30, 2011Date of Patent: May 31, 2016Assignees: Daiwabo Holdings Co., Ltd., Daiwabo Polytec Co., Ltd.Inventor: Tatsunori Kida
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Patent number: 9340672Abstract: A resin composition including 10 to 90% by mass of (A) a component to be polymerized containing a compound represented by Formula (1), and 90 to 10% by mass of (B) a thermosetting resin, the (A) and (B) each being capable of undergoing a reaction to increase molecular weight by itself when heated: wherein, Ar represents an aryl; and X represents at least one selected from the group consisting of ethers, ketones, sulfides, sulfones, amides, carbonates and esters.Type: GrantFiled: December 7, 2011Date of Patent: May 17, 2016Assignee: Toray Industries, Inc.Inventors: Kentaro Sano, Yuki Mitsutsuji, Masato Honma
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Patent number: 9234303Abstract: Polypropylene composition comprising a polypropylene having a melt flow rate MFR2 (230° C.) of at least 450 g/10 min and a molecular weight distribution (MWD) of not more than 3.5, a polypropylene having a melt flow rate MFR2 (230° C.) of equal or below 20 g/10 min, wherein the composition has a melt flow rate MFR2 (230° C.) of at least 200 g/10 min.Type: GrantFiled: November 11, 2010Date of Patent: January 12, 2016Assignee: Borealis AGInventors: Antti Tynys, Joachim Fiebig, Pascal Perrillat-Collomb
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Patent number: 9200148Abstract: There is provided a controlled degradation fiber and methods of making such controlled degradation fiber, wherein at least one first material and at least one second material are selected such that the fiber has a weight loss of greater than 6 wt. % and less than 60 wt. % based on the total weight of the fiber after one week at 130° C. in the presence of water.Type: GrantFiled: December 8, 2011Date of Patent: December 1, 2015Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Yong K. Wu, Michael D. Crandall, Rudolf J. Dams, Michelle M. Hewitt, Ignatius A. Kadoma, Siegmund Papp, Jay M. Jennen, Sasha B. Myers
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Patent number: 9200386Abstract: A method of forming color change fiber, comprises preparing polymer base material and preparing color changeable material; mixing said polymer base material and said color changeable material with a weight percentage ratio; loading said mixed said polymer base material and said color changeable material into a melting apparatus; forming polymer fiber by spinning, weaving process, wherein said polymer fiber is color changeable when sunlight irradiates on said polymer fiber.Type: GrantFiled: November 14, 2012Date of Patent: December 1, 2015Inventors: Kuo-Ching Chiang, Mei-Ling Lo
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Patent number: 9103056Abstract: Polymer structures and methods for making such polymer structures are provided. More particularly, polymer structures comprising a hydroxyl polymer structure, such as a fiber comprising a hydroxyl polymer are provided. Even more particularly, fibrous structures comprising a hydroxyl polymer structure, such as a fiber comprising a hydroxyl polymer, wherein the fibrous structure exhibits a CETM Factor of less than 20 and/or a CETM*L2 Factor of less than 950 are provided.Type: GrantFiled: August 14, 2013Date of Patent: August 11, 2015Assignee: The Procter & Gamble CompanyInventors: Linda Evers Smith, David William Cabell, Larry Neil Mackey, Gregory Charles Gordon, Paul Dennis Trokhan, Tedi-Lea Anne De Bruler
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Patent number: 9085833Abstract: A polyester monofilament comprising a high-viscosity polyester as a core component and a low-viscosity polyester as a sheath component is provided, the polyesters having been combined together in a core-sheath arrangement. The polyester monofilament has a fineness of 3.0-13.0 dtex, a breaking strength of 6.0-9.3 cN/dtex, a strength at 10% elongation of 5.0-9.0 cN/dtex, a difference in wet heat stress in the filament-length direction of 3.0 cN or less, and a residual torque value of at most 4 turns per m. Provided is a process for producing a polyester monofilament by a direct spinning/drawing method in which two ingredients, i.e., a high-viscosity polyester as a core component and a low-viscosity polyester as a sheath component, are melt-extruded from a spinnert while being combined together in a core-sheath arrangement, and cooled and solidified, and the resultant extrudate filament is continuously drawn and wound up.Type: GrantFiled: January 27, 2010Date of Patent: July 21, 2015Assignee: Toray Industries, Inc.Inventors: Tomoyuki Ichikawa, Hirofumi Yamamoto, Hiroyuki Kurokawa
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Publication number: 20150147569Abstract: The present invention provides a thermo-regulated fiber and a preparation method thereof by using a new polymeric phase-change material and adopting a new fiber preparation method, and the resulting thermo-regulated fiber has good thermo-regulating properties and a good thermal stability. The thermo-regulated fiber has a composite structure, and the cross-sectional structure is an sea-island type or a concentric sheath/core type, characterised in that the polymeric phase-change material is a polyethylene glycol n-alkyl ether (structural formula: H(OCH2CH2)mOCnH2n+1), where the repeating unit number m of the ethylene glycol is 1 to 100, the number n of carbon atoms in the n-alkyl is 11 to 30. The present invention further relates to a preparation method of a thermo-regulated fiber which includes one of the following processes: (1) A melt composite spinning process; (2) Solution composite spinning process; (3) Electrostatic solution composite spinning process.Type: ApplicationFiled: March 21, 2013Publication date: May 28, 2015Inventors: Xing Xiang Zhang, Jie Yun Meng, Xiao Fen Tang, Hai Feng Shi
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Publication number: 20150133018Abstract: The present invention provides bi-component polymeric macrofibers having an ethylene-vinyl alcohol (EVOH) outer component and a core or second component comprising a polymer blend of polypropylene grafted with maleic anhydride and polypropylene or polyethylene. The bi-component polymeric macrofibers provide excellent fiber reinforcement in concrete applications.Type: ApplicationFiled: November 10, 2014Publication date: May 14, 2015Inventor: Prasanna K. Jog
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Publication number: 20150132574Abstract: A fiber is provided with a polymer having a cross-section and a length. A particulate is distributed in the polymer in an amount to make the fiber detectable by X-ray detection or magnetic detection. The particulate is present in a core, a sheath, or both portions of polymer matrix. A process of detecting a fabric article is provided that includes the formation of a fiber in the form of a polymer having a cross-section and a length. A particulate is distributed in the polymer. A fiber is formed into a fabric. A fabric article is then manufactured from the fabric. The fabric article passes through an X-ray detector or a magnetic detector. A signal is collected from the X-ray detector or the magnetic detector indicative of the presence of the fabric article.Type: ApplicationFiled: September 25, 2014Publication date: May 14, 2015Inventors: Emily Aldridge, Robert Martin, Karen Mertins
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Publication number: 20150125504Abstract: Melt blown bicomponent fibers comprising a first thermoplastic polymeric material and a second thermoplastic polymeric material comprising homo- or co-polymer(s) of poly(m-xylene adipamide) or polyphenylene sulfide. The first thermoplastic polymeric material may be one or more homo- or co-polymer(s) of nylon 6 (polycaprolactam), nylon 6,6 (poly(hexamethylene adipamide)), polypropylene, and/or polybutylene terephthalate. A plurality of bicomponent fibers may thermally bonded to one another at spaced apart points of contact to define a porous structure that substantially resists crushing. The nonwoven fabric webs and rovings and self-supporting, three-dimensional porous elements may be formed from the plurality of bicomponent fibers.Type: ApplicationFiled: November 7, 2014Publication date: May 7, 2015Inventors: Bennett C. Ward, Brenton D. Dillie
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Publication number: 20150111450Abstract: Disclosed herein are polyesters and fibers made therefrom. The fiber comprises a polymer, poly(trimethylene furandicarboxylate) (PTF), and PTF based copolymers.Type: ApplicationFiled: March 30, 2013Publication date: April 23, 2015Inventors: Fredrik Nederberg, Bhuma Rajagopalan
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Patent number: 8986832Abstract: Disclosed is an optical-modulation object, including birefringent island-in-the-sea yarns, whose island portions are grouped, based on two or more spinning cores, in a matrix. The optical-modulation object causes formation of an optical modulation interface between island portions and sea portions, thus maximizing optical modulation efficiency, as compared to conventional birefringent island-in-the-sea yarns.Type: GrantFiled: January 26, 2010Date of Patent: March 24, 2015Assignee: Woongjin Chemical Co., Ltd.Inventors: Yeon Soo Kim, Deog Jae Jo, Jin Soo Kim, Do Hyun Kim, In Young Yang
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Publication number: 20150079391Abstract: The present invention relates to a fiber which is produced by means of a melt spinning method, including a first component including a melt processable, fully fluorinated first polymer, and a second component including a thermoplastic second polymer.Type: ApplicationFiled: September 17, 2014Publication date: March 19, 2015Inventors: Claudia Stern, Michael Schlipf
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Publication number: 20150079390Abstract: A high surface area fiber and method of construction thereof is provided. The high surface area fiber includes an inner fiber extending along a longitudinal central axis. The inner fiber has a plurality of legs extending lengthwise in generally parallel relation with one another and with the central axis. Each of the legs extends radially away from the central axis to a first peak. First channels are formed between adjacent legs in generally parallel relation with one another and with the central axis. At least some of the legs have protrusions extending laterally outwardly therefrom. The protrusions extend lengthwise in generally parallel relation with one another and with the central axis.Type: ApplicationFiled: September 12, 2014Publication date: March 19, 2015Inventor: Eric K. Staudt
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Patent number: 8956986Abstract: A binding fiber having, as at least one first thermoplastic component, a copolyamide which has a relative viscosity of at least 1.50 (measured at 0.5% in m-cresol at 25° C.), a MVR of maximum 20 cm3/10 min at 190° C. and 2.16 kg load, a hydrophobicity of less than 7.2, a melting temperature lower than 105° C. in the water saturated condition and a higher melting temperature in the dry condition. The binding fiber can, on the one hand, be activated with hot steam at approximately ambient pressure during the manufacture of flat materials containing natural fibers, such as paper, cardboard, wood fiber boards, or fiber mats. The finished flat material can, on the other hand, be subjected to higher temperatures, and the copolyamide develops good bonding with respect to the cellulose fibers normally used in the indicated flat materials.Type: GrantFiled: December 17, 2010Date of Patent: February 17, 2015Assignee: EMS-Patent AGInventors: Klaus Bender, Gunther Schäch, Eberhard Kinkelin
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Publication number: 20150044448Abstract: Disclosed herein are spandex fibers having reduced friction. The spandex fibers have a sheath-core cross-section with a lubricating additive is included in the sheath. A fusing additive is optionally included where a coalesced multifilament spandex yarn is desired.Type: ApplicationFiled: July 7, 2011Publication date: February 12, 2015Applicant: INVISTA NORTH AMERICA S.A.R.L.Inventor: Steven W. Smith
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Patent number: 8951633Abstract: Disclosed herein are bicomponent fibers comprising first and second polymer components present in distinct portions of the cross section of the filament, wherein the first polymer component of the filaments is partially crystalline and serves as the matrix component of the filaments and the second polymer component of the filament is amorphous and serves as the binder component of the filaments, and wherein the fibers exhibit a single melting peak as evidenced by a differential scanning calorimetry (DSC) trace. Also disclosed herein are methods of making bicomponent fibers and nonwoven fabrics.Type: GrantFiled: January 11, 2013Date of Patent: February 10, 2015Assignee: Fiberweb, Inc.Inventors: Gregory W. Farell, Edward Keith Willis
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Patent number: 8951325Abstract: A bi-component fiber is provided. The bi-component fiber includes a sheath formed of polyphenylene sulfide (PPS) and a core formed of a high glass transition polyester. A PPS material of the sheath has a higher melting point than a high glass transition polyester material of the core. The core is at least partially crystallized whereby the high glass transition polyester material of the core effectively has a higher softening point than a softening point of the PPS material of the sheath.Type: GrantFiled: February 27, 2013Date of Patent: February 10, 2015Assignee: BHA Altair, LLCInventors: Vishal Bansal, Jeffery Michael Ladwig, Rana Ghufran Rasheed
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Publication number: 20150017439Abstract: Polymer blends include bio-based polymers or copolymers with post-consumer and/or post-industrial polymers or copolymers and a compatibilizer. Fibers may be prepared from the polymer blends. In addition, a life cycle analysis of the polymer blends may be superior in at least four of seven categories of the life cycle analysis relative to virgin polyamide 6.6. Methods of making the fibers from polymer blends are also described. The polymer blends are particularly useful in flooring applications, such as carpeting.Type: ApplicationFiled: July 10, 2014Publication date: January 15, 2015Inventor: Luigi Pontarin
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Publication number: 20150017866Abstract: A bi-component fiber (1), in particular for the production of spunbond fabrics (4), with a first component (2) and a second component (3), whereby the first component (2) has a first polymer as an integral part and the second component has a second polymer as an integral part. It is provided that the difference between the melt-flow indices of the first component (2) and the second component (3) is less than or equal to 25 g/10 minutes and that the melt-flow indices of the first component (2) and the second component (3) in each case are less than or equal to 50 g/10 minutes.Type: ApplicationFiled: July 15, 2014Publication date: January 15, 2015Inventors: Jörn Schröer, Daniel Placke
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Publication number: 20150017865Abstract: A bi-component fiber (1), in particular for the production of spunbond fabrics (4), with a first component (2) and a second component (3), whereby the first component (2) has a first polymer as an integral part and the second component has a second polymer as an integral part. The first component (2) has an additive, and the second component (3) has a percentage by weight of the additive that is smaller than that in the first component (2).Type: ApplicationFiled: July 15, 2014Publication date: January 15, 2015Inventors: Jörn Schröer, Daniel Placke
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Publication number: 20150017864Abstract: A bi-component fiber (1), in particular for the production of spunbond fabrics (4), has a first component (2) and a second component (3), whereby the first component (2) has a first polymer as an integral part and the second component has a second polymer as an integral part. It is provided that the difference between the melting points of the first component (2) and the second component (3) is less than or equal to 8° C.Type: ApplicationFiled: July 15, 2014Publication date: January 15, 2015Applicant: Ewald Dörken AGInventors: Jörn Schröer, Daniel Placke
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Publication number: 20140374106Abstract: In general, the current disclosure relates to multicomponent fibers that have accelerated degradation in water in low temperature conditions, and their various industrial, medical and consumer product uses. Such materials are especially useful for uses in subterranean wells in oil and gas production. In some embodiments, the compositions of materials have accelerated degradation even at Ultra Low Temperature (“ULT”) (?60° C.) in subterranean formations.Type: ApplicationFiled: December 21, 2012Publication date: December 25, 2014Inventors: S. Sherry Zhu, Huilin Tu, Vadim Kamil'evich Khlestkin, Miranda Amarante
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Publication number: 20140377555Abstract: A water-disintegrable composite fiber comprising: a phase containing a polyglycolic acid resin; and a phase containing another resin having a mass loss of 25% or greater after immersion for 7 days in 80° C. pure water and having a glass transition temperature Tg of 25° C. or higher; the two phases extending continuously in the lengthwise direction; and the fiber having a side surface in which a region formed from the phase containing the polyglycolic acid resin is 50% or less in terms of area ratio, and a cross section in which a region formed from the phase containing the polyglycolic acid resin is 50% or greater in terms of area ratio.Type: ApplicationFiled: February 21, 2013Publication date: December 25, 2014Applicant: Kureha CorporationInventor: Kotaku Saigusa
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Patent number: 8916262Abstract: The invention provides composite components, structures and method for producing composite components. A composite component has a negative effect Poisson's ratio and comprises a first component and a second component. The first component and the second component extend longitudinally relative to an axis, the first component being provided around the second component through one or more turns which are spaced longitudinally relative to the axis. A variation in the tensile load on the first component causes the radial position of the second component relative to the axis to vary.Type: GrantFiled: May 18, 2009Date of Patent: December 23, 2014Assignee: Dow Corning CorporationInventors: Patrick Barry Hook, Kenneth E. Evans, Jonathan Paul Hannington, Claire Hartmann-Thompson, Timothy Rex Bunce
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Publication number: 20140370283Abstract: The present invention provides a conjugated fiber suitable for use as a crimped fiber capable of producing an artificial leather having highly dense texture and good quality. The present invention also provides a base body for an artificial leather and an artificial leather produced by using such conjugated fiber. The conjugated fiber of the present invention includes a conjugated fiber comprising a readily soluble polyester component and a less readily soluble component, and the readily soluble polyester component comprises a copolymerized polyester having 5 to 10% by mole of 5-sodium sulfoisophthalate copolymerized therewith and the readily soluble polyester component contains a polyalkylene glycol. The polyalkylene glycol is in the form of streaks extending in longitudinal direction of the fiber in the longitudinal cross section of the conjugated fiber.Type: ApplicationFiled: December 13, 2012Publication date: December 18, 2014Applicant: TORAY INDUSTRIES, INC.Inventors: Hajime Nishimura, Yukihiro Matsuzaki, Makoto Nishimura
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Publication number: 20140363653Abstract: A structural fiber product usable as an adsorbent or the like is provided. A graft component for forming a graft chain is graft-polymerized onto a structural fiber object; the structural fiber object comprises a fiber assembly comprising at least a conjugated fiber, and an ethylene-vinyl alcohol-series copolymer exists on at least part of a surface of the fiber. The graft polymerization may be conducted, for example, by exposing a structural fiber object to radiation to generate an active species and immersing the structural fiber object in a liquid containing a graft component to bring the structural fiber object into contact with the graft component. According to the method, the graft component can be polymerized at a high degree of grafting, and a structural fiber product having an excellent adsorption characteristic is obtained.Type: ApplicationFiled: June 7, 2012Publication date: December 11, 2014Applicants: University of Fukui, Kuraray Co., Ltd.Inventors: Teruo Hori, Tomoki Sakai, Hideki Hoshiro, Atsumi Adachi, Yasuro Araida, Sumito Kiyooka
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Publication number: 20140356612Abstract: A molded article excellent in dynamic characteristics and water degradation resistance can be obtained by using a fiber-reinforced polypropylene resin composition including a carbodiimide-modified polyolefin (a), a polypropylene resin (b) and reinforcing fibers (c), wherein the content of the carbodiimide group contained in a resin component in the fiber-reinforced polypropylene resin composition is 0.0005 to 140 mmol based on 100 g of a matrix resin component, and the reinforcing fibers (c) are sizing-treated with a polyfunctional compound (s); and a molding material using the fiber-reinforced polypropylene resin composition.Type: ApplicationFiled: January 17, 2013Publication date: December 4, 2014Applicant: Toray Industries, Inc.Inventors: Kentaro Sano, Noriyuki Hirano, Masato Honma, Atsuki Tsuchiya
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Publication number: 20140357144Abstract: Fibers having two or more alternating polymer layers are formed by co-extrusion followed by electroprocessing. The fibers can be used as a non-woven mat or other substrate for a variety of applications. Delamination of the fibers using ultrasonication yields separated, micro and nanolayer, fiber ribbons which may also be used a non-woven mat or other substrate.Type: ApplicationFiled: December 14, 2012Publication date: December 4, 2014Inventors: Eugene G. Joseph, Naresh Budhavaram, Roop Mahajan
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Patent number: 8900702Abstract: An artificial hair and a wig using the same are provided which have the property of thermal deformation expanding upon heating by a hair drier or others used for hair styling. The artificial hair 1 is made by mixing at the pre-determined ratio a semi-aromatic polyamide having a glass transition temperature between 60-120° C. and a resin not expanding in said temperature range. The artificial hair may have a sheath/core structure comprising a core portion 5B and a sheath portion covering the core portion. As the resin not expanding in said temperature range, polyethylene terephthalate or others can be used, and as the sheath, nylon 6 or nylon 66 can be used. Said artificial hair 1 can maintain its shape at room temperature or after shampooing due to thermal deformation by heating in steam atmosphere at temperature of glass transition or higher or about 80-100° C.Type: GrantFiled: August 7, 2007Date of Patent: December 2, 2014Assignee: Aderans Company LimitedInventors: Yutaka Shirakashi, Takayuki Watanabe, Osamu Asakura, Nobuyoshi Imai, Akemi Irikura
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Patent number: 8895459Abstract: The present invention relates to a new bicomponent fiber, a nonwoven fabric comprising said new bicomponent fiber and sanitary articles made therefrom. The bicomponent fiber contains a polyethylene-based resin forming at least part of the surface of the fiber longitudinally continuously and is characterized by a Co-monomer Distribution Constant greater than about 45, a recrystallization temperature between 85° C. and 110° C., a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa·sec or less. The nonwoven fabric comprising the new bicomponent fiber according to the instant invention are not only excellent in softness, but also high in strength, and can be produced in commercial volumes at lower costs due to higher thoughputs and requiring less energy.Type: GrantFiled: January 29, 2013Date of Patent: November 25, 2014Assignee: Trevira GmbHInventors: Jorg Dahringer, Bernd Blech, Werner Stefani, Werner Grasser, Mehmet Demirors, Gert Claåsen
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Publication number: 20140342629Abstract: Provided is a composite fiber capable of forming a fabric giving a good wearing feeling to a human body. This composite fiber is composed of a polyurethane elastomer having a glass transition temperature of 15 to 50° C. as a component A, and a readily soluble thermoplastic polymer as a component B. In a cross section of the fiber, the component A constitutes a core, and the component B covers 70% or longer of the circumference of the component A. The component B may be, for example, a readily soluble polyester or thermoplastic polyvinyl alcohol-based polymer. The composite ratio (mass ratio) of the component A to the component B may be 90:10 to 40:60.Type: ApplicationFiled: July 31, 2014Publication date: November 20, 2014Applicant: KURARAY CO., LTD.Inventors: Hitoshi NAKATSUKA, Nobuhiro KOGA, Eiji AKIBA, Shunichi HAYASHI
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Patent number: 8889573Abstract: The present invention relates to a fiber assembly obtained by electrifying a resin in a melted state by application of voltage between a supply-side electrode and a collection-side electrode so as to extend the resin into an ultrafine composite fiber by electrospinning, and accumulating the ultrafine composite fiber, wherein the ultrafine composite fiber includes at least two polymeric components and the ultrafine composite fiber includes at least one type of composite fiber selected from a sea-island structure composite fiber and a core-sheath structure composite fiber as viewed in fiber cross section, at least one selected from an island component and a core component has a volume specific resistance of 1015?·cm or less, and at least one selected from a sea component and a sheath component has a volume specific resistance exceeding 1015?·cm.Type: GrantFiled: September 4, 2009Date of Patent: November 18, 2014Assignees: Daiwabo Holdings Co., Ltd., Daiwabo Polytec Co., Ltd.Inventor: Toshio Kamisasa
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Publication number: 20140335355Abstract: This invention is a hybrid composite yarn comprising: a first polyolefin yarn having >about 80% crystallinity according to WAXS measuring techniques; a second yarn taken from the group consisting of: glass; quartz; carbon; poly(p-phenylene terephthalamide), poly(m-phenylene terephthalamide); poly(vinyl alcohol); poly(1,4-phenylene-2,14-benzibisoxazole) (PBO); poly(1,4-phenylene-2,14-benzobisthiazole) (PBT); poly(benzimidizole) (PBI); poly(ethylene-2,14-naphthalate) (PEN); lyotropic liquid crystalline polymers formed by polycondensation of aromatic organic monomers to form aromatic polyesters, polyamides, aluminia-silicates, basalt, regenerated cellulosic materials and ultra-high molecular weight polyethylene (UHMWPE); and, wherein the first polyolefin yarn and the second yarn are physically combined to form a composite yarn having at least one of the following properties: tenacity greater than about 100% of the expected tenacity based on the volume fraction of the second; an initial modulus >about 100%Type: ApplicationFiled: July 28, 2014Publication date: November 13, 2014Inventors: Jeffrey Ettin, Elizabeth Cates
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Patent number: 8883305Abstract: 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: GrantFiled: November 16, 2011Date of Patent: November 11, 2014Assignee: Umeco Structual Materials (Derby) LimitedInventors: Mark Raymond Steele, Andrew Gibbs, Amy Grace Atkinson
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Patent number: 8883304Abstract: A synthetic fiber including core and sheath is provided. The sheath covers the core and includes a plurality of segment portions and a plurality of sacrificial portions. The plurality of sacrificial portions are connected to the plurality of segment portions, where the plurality of segment portions and the plurality of sacrificial portions are arranged alternately to each other on an outer surface of the core, and the material of the plurality of segment portions is different with that of the plurality of sacrificial portions.Type: GrantFiled: November 4, 2009Date of Patent: November 11, 2014Assignee: Taiwan Textile Research InstituteInventors: Chao-Huei Liu, Ruey-Loung Chern
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Publication number: 20140323003Abstract: The present invention relates to bicomponent polymer fibers, and to processes for forming those fibers. Bicomponent polymer fibers are described, having a core comprising a core polymer and a sheath comprising a sheath polymer, wherein the sheath polymer is a polyolefin having an Mw less than about 65,000 g/mol. The core polymer has an Mw at least about 20,000 g/mol greater than the Mw of the sheath polymer. Processes for forming bicomponent fibers are also described, comprising (i) forming a molten blend of a core polymer and a sheath polymer; (ii) extruding the molten polymer blend using an extrusion die having a length to diameter ratio greater than or equal to about 10 and under shear conditions sufficient to drive the sheath polymer to the die wall; and (iii) forming meltblown fibers having a core comprising the core polymer and a sheath comprising the sheath polymer.Type: ApplicationFiled: October 18, 2011Publication date: October 30, 2014Inventors: Galen C. Richeson, Alistair D. Westwood, Aspy K. Mehta
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Publication number: 20140322512Abstract: According to one aspect of the invention, multicomponent fiber are provided, which comprise (a) a polymeric core that comprises a core-forming polymer and (b) a polymeric sheath that comprises a sheath-forming polymer that is different than the core-forming polymer. Examples of core-forming polymers include, for instance, crosslinked polysiloxanes and thermoplastic polymers, among others. Examples of sheath-forming polymers include, for instance, solvent-soluble polymers, degradable polymers and hydrogel-forming polymers, among others. Other aspects of the present invention pertain to methods of forming such multicomponent fibers. For example, in certain preferred embodiments, the multicomponent fibers are formed using coaxial electrospinning techniques. Still other aspects of the present invention pertain to meshes and other articles that are formed using the multicomponent fibers.Type: ApplicationFiled: March 14, 2014Publication date: October 30, 2014Inventors: Quynh Pham, Xuri Ray Yan, Abby Deleault, Toby Freyman, Joseph Lomakin, Gregory T. Zugates
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Patent number: RE45778Abstract: Braided or twisted lines made from a) gel spun polyolefin yarns and b) at least one other yarn or monofilament are stretched to increase line tenacity. If desired, stretching conditions can also be chosen to significantly reduce the denier of the line.Type: GrantFiled: August 26, 2013Date of Patent: October 27, 2015Assignee: Pure Fishing, Inc.Inventors: Roger Cook, Jim Thelen, Joe Meyer