Physical Dimension Patents (Class 428/401)
  • Patent number: 11053387
    Abstract: A one-step spun composite DTY and preparation method thereof are provided. The bi-profiled fiber is manufactured with two types of modified polyester of different viscosities through the steps of melting, melt metering, composite extruding, cooling, oiling, drawing, heat setting and winding. Wherein those two modified polyesters have a molecular structure including terephthalic acid segments, ethylene glycol segments and branched diol segments, and the branched diol has a structural formula of here R1 and R2 are separately selected from the linear alkylene with 1-3 carbon atoms, R3 from the alkyl with 1-5 carbon atoms, and R4 from the alkyl with 2-5 carbon atoms. The obtained one-step spun composite DTY has an elastic shrinkage rate of no less than 35%. The method presented in this invention is involved in a simple and reasonable technological process for wide application range.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: July 6, 2021
    Assignee: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.
    Inventors: Hongwei Fan, Guanfan Jin, Ming Chen, Huailin Ren, Yongfeng Wang, Xiangming Wang
  • Patent number: 11047051
    Abstract: A process for the large-scale manufacturing vertically standing hybrid nanometer scale structures of different geometries including fractal architecture of nanostructure within a nano/micro structures made of flexible materials, on a flexible substrate including textiles is disclosed. The structures increase the surface area of the substrate. The structures maybe coated with materials that are sensitive to various physical parameters or chemicals such as but not limited to humidity, pressure, atmospheric pressure, and electromagnetic signals originating from biological or non-biological sources, volatile gases and pH. The increased surface area achieved through the disclosed process is intended to improve the sensitivity of the sensors formed by coating of the structure and substrate with a material which can be used to sense physical parameters and chemicals as listed previously.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: June 29, 2021
    Assignee: NANOWEAR INC.
    Inventors: Vijay K. Varadan, Pratyush Rai, Se Chang Oh
  • Patent number: 10988549
    Abstract: A method for producing a dry solid of cellulose nanofiber, the method comprising (A) preparing a dispersion in which cellulose nanofiber with an average fiber diameter of 2 to 500 nm is dispersed in a mixed solvent of water and a water-soluble organic solvent; and (B) drying the dispersion.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: April 27, 2021
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Takeshi Nakatani, Shinji Sato
  • Patent number: 10982044
    Abstract: A low-shrinkage polyester industrial yarn and a preparation method thereof are provided. The preparation method includes the following steps: subjecting the modified polyester to polycondensation, melting, measuring, extruding, cooling, oiling, stretching, heat setting and winding, wherein the content of the crown ether in the oil agent is 67.30-85.58 wt %. The material of the prepared low shrinkage polyester industrial yarn is a modified polyester, the molecular chain of the modified polyester includes a terephthalic acid segment, an ethylene glycol segment, and a branched diol segment, and the structural formula of the branched diol is as follows: Wherein R1 and R2 are each independently selected from a linear alkylene group having 1-3 carbon atoms, R3 is selected from an alkyl group having 1-5 carbon atoms, and R4 is selected from an alkyl group consisting of 2-5 carbon atoms.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: April 20, 2021
    Assignee: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.
    Inventors: Hongwei Fan, Yiwei Shao, Lixin Yin, Fangming Tang
  • Patent number: 10619275
    Abstract: A thermally stable nonwoven web including blended-polymer meltblown fibers containing a blend of poly (butylene terephthalate) and poly (ethylene terephthalate).
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: April 14, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Rui Chen, Xiaoshuan Fu, Jin Zhang You, Chiaki Hanamaki, Sachin Talwar
  • Patent number: 10479695
    Abstract: Provided are porous titanate compound particles capable of giving excellent fade resistance and moisture-proof properties when used in a friction material, a friction material composition, a friction material, a friction member, and a method for producing the porous titanate compound particles. Porous titanate compound particles have a cumulative pore volume of 5% or more within a pore diameter range of 0.01 to 1.0 ?m, are each formed of titanate compound crystal grains bonded together, and each includes a treated layer formed on a surface thereof and made of a hydrophobic surface treatment agent.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: November 19, 2019
    Assignee: OTSUKA CHEMICAL CO., LTD.
    Inventor: Haruna Muragishi
  • Patent number: 10453583
    Abstract: A boron filled hybrid nanotube and a method for producing and rendering boron filled hybrid nanotubes suitable for applications are provided. A mixture of a boron containing nanowire producing compound and catalysts is prepared and ground for a predetermined time period. The ground mixture is subjected to a vapor deposition process including passing an inert gas over the ground mixture after adding a nanotube producing compound to the ground mixture or after passing a reactant gas on the ground mixture in a reactor at a configurable reaction temperature and a configurable reaction pressure for a configurable reaction time to produce the boron filled hybrid nanotubes with enhanced mechanical, thermal and electrical properties. Each boron filled hybrid nanotube includes one or more boron based nanowires embedded within one or more single walled or multi-walled nanotubes. The boron filled hybrid nanotubes are further purified and functionalized using acids, and/or bases, and/or surfactants.
    Type: Grant
    Filed: August 27, 2016
    Date of Patent: October 22, 2019
    Inventors: Rajen Bhupendra Patel, Zafar Iqbal
  • Patent number: 10415156
    Abstract: A method for separating out a continuous single thread of fiber from many fiber branches and controlling alignment and deposition of said fiber on a substrate, comprising: electrospinning synthetic polymer fiber streams from an electrically charged syringe needle; controlling the fiber using at least one electrically charged metallic disk rotating about an axis positioned below the needle; capturing the fiber using electrically grounded collector; extracting a single fiber branch thread from the polymer fiber streams, wherein the single fiber branch thread is attracted to and intercepted by the collector shape, and depositing the single fiber branch thread as substantially aligned fiber on the collector.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: September 17, 2019
    Assignee: University of Central Oklahoma
    Inventors: Morshed Khandaker, William Paul Snow
  • Patent number: 10364377
    Abstract: The present invention is related to adhesive composition, having a polymer blend comprising a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin, and a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer; wherein the polymer blend has a melt viscosity, measured at 190° C. and determined according to ASTM D-3236, of about 1,000 cP to about 5,000 cP; a propylene polymer; and wherein the adhesive composition is substantially free of a functionalized polyolefin, wherein the functionalized polyolefin is selected from at least one of a maleic anhydride-modified polypropylene and a maleic anhydride-modified polypropylene wax.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: July 30, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jan Kalfus, Jurgen J. Schroeyers, Jennifer J. Austin, James N. Coffey, Jean-Roch Schauder
  • Patent number: 10280532
    Abstract: Suture containing filaments of ultra-high molecular weight polyethylene (UHMwPE), characterized in that the suture contains a multi-filament yarn that is obtained by a process comprising the steps of: a) Providing a mixture containing UHMwPE, a spinning solvent and a pigment b) Spinning a multi-filament yarn from the mixture by the gel spinning process.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: May 7, 2019
    Assignee: DSM IP ASSETS B.V.
    Inventors: Joseph Arnold Paul Maria Simmelink, Claudia C. Vaz
  • Patent number: 10258643
    Abstract: Compositions are described that contain treated chitosan, modified chitosan and/or modified and treated chitosan for use in formulations for skin, hair and nails, and in compositions and methods of reducing topical agent-induced skin irritation and inflammation.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: April 16, 2019
    Assignees: Alumend, LLC, Wavepharma, LLC
    Inventors: Ronald E. Utecht, Therese M. Downey, Miri Seiberg, Stanley S. Shapiro, Jack V. Foster
  • Patent number: 10195603
    Abstract: Nanowires useful as heterogeneous catalysts are provided. The nanowire catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to ethylene. Related methods for use and manufacture of the same are also disclosed.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: February 5, 2019
    Assignee: Siluria Technologies, Inc.
    Inventors: Erik C. Scher, Fabio R. Zurcher, Joel M. Cizeron, Wayne P. Schammel, Alex Tkachenko, Joel Gamoras, Dmitry Karshtedt, Greg Nyce
  • Patent number: 10098980
    Abstract: Multilayer articles having an absorbent nonwoven layer and a barrier layer are described, including those having a surfactant-treated, aliphatic polyester, nonwoven absorbent layer and a barrier layer. Multilayer articles including a tie layer used to enhance the bond between the hydrophilic absorbent layer and the barrier layer are also described. Methods of making and using such articles are also described.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: October 16, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Korey W. Karls, Matthew T. Scholz, Jeffrey O. Emslander, Amy S Determan
  • Patent number: 10087580
    Abstract: The present description relates to a process of producing a dry mixed product comprising cellulose filament (CF) and a carrier fiber, and a dry mixed product of re-dispersible cellulose filament and a carrier fiber that permits the CF to retain its dispersibility in water and hence superior reinforcement ability in papermaking furnishes, composite materials, or other materials where CF is used. The process comprises mixing a water suspension of never-dried CF with a cellulose fiber pulp carrier followed by thickening to a suitable concentration so that it can be further processed and dried in a conventional device such as a dryer can of a pulp machine or a flash dryer.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: October 2, 2018
    Assignee: FPInnovations
    Inventors: Yuxia Ben, Gilles Dorris, Xiaolin Cai, Xujun Hua, Zhirun Yuan, Patrick Neault
  • Patent number: 9975777
    Abstract: The present invention relates to a segmented graphene nanoribbon, comprising at least two different graphene segments covalently linked to each other, each graphene segment having a monodisperse segment width, wherein the segment width of at least one of said graphene segments is 4 nm or less and to a method for preparing it by polymerizing at least one polycyclic aromatic monomer compound and/or at least one oligo phenylene aromatic hydrocarbon monomer compound to form at least one polymer and by at least partially cyclodehydrogenating the one or more polymer.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: May 22, 2018
    Assignees: BASF SE, EMPA MATERIALS SCIENCE AND TECHNOLOGY
    Inventors: Roman Fasel, Pascal Ruffieux, Klaus Muellen, Stephan Blankenburg, Jinming Cai, Xinliang Feng, Carlo Pignedoli, Daniele Passerone
  • Patent number: 9944552
    Abstract: Inorganic fibers having the composition: 10?Al2O3?50 mol %; 2?K2O?40 mol %; 30?SiO2?70 mol %; and in which SiO2+Al2O3+K2O>=80 mol % can be protected against surface crystallization of kalsilite by: including an amount of a nucleation promoting component effective to promote bulk crystallization in the glass; and/or providing on at least part of their surface, potassium scavenging materials.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: April 17, 2018
    Assignee: Morgan Advanced Materials plc
    Inventors: Ronald Wainwright, Gary Jubb, Fontaine Fadiora
  • Patent number: 9926655
    Abstract: Nonwoven textile fabrics in accordance with the present invention include a web of entangled polymeric fibers with substantially pectin-free, individualized bast fibers having a mean length less than 9 millimeters (mm). A method of making a nonwoven fabric includes forming a web of polymeric fibers, forming a randomly arrayed fiber web of the substantially individualized bast fibers having a mean length less than 9 mm, disposing the web of the substantially individualized bast fibers onto the web of polymeric fibers, and entangling the polymeric fibers with the substantially individualized bast fibers to form the nonwoven fabric. In addition, laminates include the nonwoven fabric, a film, and an adhesive disposed between the fabric and the film to bond the nonwoven fabric to the film.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: March 27, 2018
    Assignee: GPCP IP Holdings LLC
    Inventors: Samuel C. Baer, Alan E. Wright, Micheal S. Lerch
  • Patent number: 9889229
    Abstract: The present invention provides implant devices comprising nanoscale structures on the surface thereof and methods of manufacturing such implant devices. In some embodiments, methods of manufacturing an implant device comprise exposing a surface of the implant device to an oxidative hydrothermal environment for a duration sufficient to generate nanoscale structures on the exposed surface(s) of the implant device.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: February 13, 2018
    Assignee: Georgia Tech Research Corporation
    Inventors: Rolando A. Gittens Ibacache, Jonathan Vernon, Kenneth H. Sandhage, Barbara D. Boyan
  • Patent number: 9833469
    Abstract: Compositions are described that contain treated chitosan, modified chitosan and/or modified and treated chitosan for use in formulations for skin, hair and nails, and in compositions and methods of reducing topical agent-induced skin irritation and inflammation.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: December 5, 2017
    Assignees: Alumend, LLC, WavePharma, LLC
    Inventors: Ronald E. Utecht, Therese M. Downey, Miri Seiberg, Stanley S. Shapiro
  • Patent number: 9803320
    Abstract: The present invention relates to dry cellulose filaments and particularly those that are re-dispersible in water. Dry cellulose filaments comprise at least 50% by weight of the filaments having a filament length up to 350 ?m; and a diameter of between 100 and 500 nm, wherein the filaments are re-dispersible in water. Also described here is a film of dry cellulose filaments comprising the filaments described, wherein the film is dispersible in water. A method of making a dry film of cellulose filaments is also described that includes providing a liquid suspension of the cellulose filaments described; and retaining the filaments on the forming section of a paper or tissue making machine or on a modified paper or tissue making machine. The film can be optionally converted to powders or flakes for shipment, storage or subsequent uses. The filaments, the film, the powders or flakes and the method are in a preferred embodiment free of additives and the derivatization of the filaments.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: October 31, 2017
    Assignee: FPINNOVATIONS
    Inventors: Gilles Marcel Dorris, Yuxia Ben, Thomas-Qiuxiong Hu, Patrick Neault
  • Patent number: 9695345
    Abstract: The present invention relates to a dicing die bonding film employed in a semiconductor packaging process, and a semiconductor device using the same. The dicing die bonding film is configured such that a ratio X/Y of adhesive power X between the wafer and the adhesive layer of the die bonding portion to tacky power Y between the die bonding portion and the tacky layer of the dicing portion is 0.15 to 1, and the adhesive layer of the die bonding portion has a storage modulus of 100 to 1000 MPa at a normal temperature. The dicing die bonding film according to the present invention reduces burr generation in dicing process, and thereby preparing a semiconductor device having excellent reliability without inferiority caused by bad connection reliability due to the burr covering a bonding pad.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: July 4, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Jee Yoo, Jang Soon Kim, Jong Wan Hong, Hyo Soon Park, Dong Han Kho
  • Patent number: 9506168
    Abstract: Suture containing filaments of ultra-high molecular weight polyethylene (UHMwPE), characterized in that the suture contains a multi-filament yarn that is obtained by a process comprising the steps of: a) Providing a mixture containing UHMwPE, a spinning solvent and a pigment b) Spinning a multi-filament yarn from the mixture by the gel spinning process.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: November 29, 2016
    Assignee: DSM IP ASSETS B.V.
    Inventors: Joseph Arnold Paul Maria J. A. P. M Simmelink, Claudia C. Vaz
  • Patent number: 9206530
    Abstract: Melt-blown fiber (MBF) comprising a propylene copolymer (PP), wherein the melt-blown fiber (MBF) and/or the propylene copolymer (PP) has/have (a) a melt flow rate MFR2 (230° C.) measured according to ISO 1133 of at least 300 g/10 min, (b) a comonomer content of 1.5 to 6.0 wt.-%, the comonomers are ethylene and/or at least one C4 to C12 ?-olefin, (c) <2,1> regiodefects of more than 0.4 mol.-% determined by 13C-NMR spectroscopy.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: December 8, 2015
    Assignee: BOREALIS AG
    Inventors: Antti Tynys, Joachim Fiebig
  • Patent number: 9187641
    Abstract: There is provided a polyphenylene sulfide resin composition, comprising 5 to 95% by weight of a component (B) which is a polyphenylene sulfide resin having a weight-average molecular weight of not less than 10,000 and a weight loss percentage ?Wr of not greater than 0.18% under heating, relative to 95 to 5% by weight of a component (A) which is a polyphenylene sulfide resin having the weight loss percentage ?Wr of greater than 0.18%, wherein a total of the component (A) and the component (B) is equal to 100% by weight.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: November 17, 2015
    Assignee: Toray Industries, Inc.
    Inventors: Naoya Ouchiyama, Shunsuke Horiuchi, Hideki Matsumoto, Kei Saitoh
  • Patent number: 9105800
    Abstract: A method for forming a coating of material on selected portions of a surface of a substrate having a plurality of cavities, each cavity having outer, peripheral sidewalls extending outwardly from the surface. The method includes: providing a structure having a release agent thereon; contacting top surface of the wafer with the release agent to transfer portions of the release agent to the top surface of the wafer while bottom portions of the cavities remain spaced from the release agent to produce an intermediate structure; the release agent disposed on the top surface of the wafer and with the bottom portions of the cavities void of the release agent; exposing the intermediate structure to the material to blanket coat the material on both the release agent and the bottom portions of the cavities; and selectively removing the release agent together with the coating material while leaving the coating material on the bottom portions of the cavities.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: August 11, 2015
    Assignee: RAYTHEON COMPANY
    Inventors: Roland Gooch, Thomas Allan Kocian, Buu Diep, Adam M. Kennedy, Stephen H. Black
  • Publication number: 20150143774
    Abstract: An unbonded loosefill insulation material including a multiplicity of discrete, individual tufts formed from a plurality of insulative fibers and a plurality of conductive fibers mixed with the insulative fibers is provided. The conductive fibers are configured to dissipate static electrical charges.
    Type: Application
    Filed: November 26, 2013
    Publication date: May 28, 2015
    Inventors: William E. Downey, Michael E. Evans
  • Publication number: 20150147570
    Abstract: Fibers and fabrics with improved anti-microbial activity in after laundering, and a method of producing the same, are described. One embodiment includes a method for generating a synthetic fiber, the method comprising creating a mixture, the mixture comprising a polymer, an anti-microbial agent, and a dispersion liquid, and extruding the mixture to form a synthetic fiber.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventor: Stephen Woodrow FOSS
  • Publication number: 20150145314
    Abstract: Disclosed is a high strength polyester fiber for a seat belt, and in particular, a polyester fiber for a seat belt, which has intrinsic viscosity of 0.8 to 1.5 dl/g, tensile strength of 8.8 g/d or more, and total fineness of 400 to 1800 denier. A method of preparing the fiber is disclosed. The polyester fiber includes filaments having high strength, low modulus, and high elongation to significantly lower shrinkage, while securing excellent mechanical properties, it is possible to manufacture a seat belt having excellent impact absorption and significantly improved abrasion resistance and heat resistant strength retention, even with a woven density of 260 yarns/inch or less.
    Type: Application
    Filed: June 28, 2013
    Publication date: May 28, 2015
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Byoung-Wook An, Gi-Woong Kim, Seong-Young Kim, Young-Soo Lee
  • Publication number: 20150132575
    Abstract: Luminescent fibers, articles including the luminescent fibers, and methods of forming the luminescent fibers are provided herein. In an embodiment, a luminescent fiber includes a regenerated cellulose and a luminescent polycyclic compound. The luminescent polycyclic compound includes a heterocyclic ring. The heterocyclic ring includes two nitrogen atoms therein.
    Type: Application
    Filed: October 27, 2014
    Publication date: May 14, 2015
    Inventor: Thomas Potrawa
  • Publication number: 20150132574
    Abstract: 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: Application
    Filed: September 25, 2014
    Publication date: May 14, 2015
    Inventors: Emily Aldridge, Robert Martin, Karen Mertins
  • Publication number: 20150125754
    Abstract: There is provided a method of forming silicon anode material for rechargeable cells. The method includes providing a metal matrix, comprising no more than 30 wt % silicon, including silicon structures dispersed therein. The method further includes at least partially etching the metal matrix to at least partially isolate the silicon structures.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 7, 2015
    Applicant: NEXEON LTD.
    Inventor: Philip John Rayner
  • Publication number: 20150125696
    Abstract: A melt blowing process comprising: (a) providing a thermoplastic polymer material that includes at least one or a plurality of polyester polymers and at least one or a combination of different meltable metal phosphinates; and (b) melt blowing the thermoplastic polymer material into at least one fiber or a plurality of fibers, with each fiber having a diameter or thickness that is less than about 10 microns. The metal phosphinate is in an amount that (a) reduces the viscosity of the polyester polymer and (b) functions as a crystallizing agent, which at least promotes crystallization of the polyester polymer, when the thermoplastic polymer material is melt blown into the at least one fiber. Non-woven and woven fibrous structures can be made using fibers made from this process.
    Type: Application
    Filed: December 20, 2012
    Publication date: May 7, 2015
    Inventors: Nataliya V. Fedorova, Eric M. Moore, Sehyun Nam, Pamela A. Percha, Sachin Talwar
  • Publication number: 20150118491
    Abstract: Disclosed are a hollow graphene nanoparticle and a method for manufacturing the same. The hollow graphene nanoparticle is made of graphene sheets stacked together, and has a particle size of 10˜500 nm and a specific surface area greater than 500 m2/g. The method includes the steps of forming graphene, etching and heat treatment. First, a reducing agent is injected into an oven filled with protective gas, a carbon-containing gas compound or a second gas compound decomposing to generate carbon at higher temperature is added, a processing temperature is heated up to perform a redox reaction so as to form graphene nanoparticles containing side products, the graphene nanoparticles is then immersed in the acidic etching solution to remove the side products and obtain the hollow graphene nanoparticles.
    Type: Application
    Filed: January 30, 2014
    Publication date: April 30, 2015
    Applicant: ENERAGE INC.
    Inventors: Mark Y. WU, Cheng-Yu HSIEH, Cheng-Shu PENG
  • Publication number: 20150118195
    Abstract: The presently disclosed subject matter provides a scalable and electrostretching approach for generating microfibers exhibiting uniaxial alignment from polymer solutions. Such microfibers can be generated from a variety of natural polymers or synthetic polymers. The hydrogel microfibers can be used for controlled release of bioactive agents. The internal uniaxial alignment exhibited by the presently disclosed fibers provides improved mechanical properties to microfibers, contact guidance cues and induces alignment for cells seeded on or within the microfibers.
    Type: Application
    Filed: April 30, 2013
    Publication date: April 30, 2015
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Hai-Quan Mao, Shuming Zhang, Xi Liu, Brian Patrick Ginn
  • Publication number: 20150111455
    Abstract: The present invention is directed toward an apparatus comprising a high speed rotating disk or bowl for nanofiber spinning from the rotational sheared thin film fibrillation at the enclosed serrations with the optimized stretching zone to produce the defects-free nanofibrous web and nanofibrous membrane comprising a nanofiber network with a number average nanofiber diameter less than 500 nm that yield the crystallinity higher than the polymer resin used in making the web.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 23, 2015
    Inventors: TAO HUANG, Thomas Patrick Daly, Zachary R. Dilworth
  • Publication number: 20150104643
    Abstract: The invention relates to a crosslinked hyaluronan derivative in the form of a hydrogel or microfibers, and to a method of preparation thereof, consisting in a C—C coupling reaction. The C—C coupling reaction is performed via reaction of a hyaluronan derivative carrying a terminal aryl-halide and/or aryl-borate group, and a hyaluronan derivative carrying an alkenyl or alkynyl group, in water, phosphates buffer or a mixture of an organic acid and an alcohol, and in the presence of a palladium active catalyst. The palladium active catalyst may be e.g. a complex of palladium (II) acetate and an inorganic or organic base, or a complex of palladium (II) and 2-amino-4,6-dihydroxypyrimidine.
    Type: Application
    Filed: April 25, 2013
    Publication date: April 16, 2015
    Inventors: Gloria Huerta-Angeles, Zuzana Jouklova, Eva Prikopova, Vladimir Velebny
  • Publication number: 20150104662
    Abstract: Provided is a polymer nanowire which contains nanoparticles so as to have new functionalities. A thin film 103 is formed on a substrate 101 and includes functional nanoparticles and polymers, and further includes a photosensitive pigment as required. The thin film 103 is irradiated with a pulsed laser. This causes a polymer nanowire 109 containing the functional nanoparticles to grow from a surface of the thin film 103.
    Type: Application
    Filed: December 13, 2012
    Publication date: April 16, 2015
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Michiko Sasaki, Masahiro Goto, Akira Kasahara, Toyohiro Chikyo, Masahiro Tosa
  • Patent number: 9005756
    Abstract: Disclosed are block copolymer nanostructures formed on surface patterns different from nanostructure of the block copolymer and preparation methods thereof.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: April 14, 2015
    Assignee: Advanced Institute of Science and Technology
    Inventors: Sang Ouk Kim, Dong Ok Shin, Bong Hoon Kim
  • Patent number: 8999867
    Abstract: Melt-blown fiber having an average diameter of not more than 5.0 ?m, said fiber comprises at least 85 wt.-% of a propylene copolymer, wherein •said melt blown fiber and/or said propylene copolymer has/have a melt flow rate MFR2 (230° C.) measured according to ISO 1133 of at least 200 g/10 min, •said propylene copolymer has a comonomer content of 0.5 to 5.5 wt.-%, the comonmers are ethylene and/or at least one C4 to C20 ?-olefin selected from the group consisting of 1-butene, 1-pentene, 1-hexene, 1-heptene, and 1-octene, •the propylene copolymer has <2,1> regiodefects of not more than 0.4 mol.-% determined by 13C-spectroscopy, and •said melt blown fiber and/or said propylene copolymer fulfill(s) the equation (1). wherein Tm [° C.] is the melting temperature [given in ° C.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: April 7, 2015
    Assignee: Borealis AG
    Inventors: Henk Van Paridon, Bert Broeders, Wilhelmus henricus Adolf Sars, Joachim Fiebig, Nina Ackermans
  • Publication number: 20150093574
    Abstract: Provided herein are methods for the manufacture of fibers from solution-phase peptide-based polymers by electrospinning, and compositions produced thereby. In particular embodiments, various embodiments provide electrospinning supramolecular fibers from low concentration peptide amphiphile filaments.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Inventors: Alok S. Tayi, E. Thomas Pashuck, III, Samuel I. Stupp
  • Publication number: 20150079866
    Abstract: A method of producing a fine fiber, including treating a cellulose raw material with an enzyme; and fibrillating the treated cellulose raw material; treating with the enzyme under a condition where at least a ratio of endo-glucanase activity to cellobiohydrolase activity that is 0.06 or greater. The cellulose raw material may be a plant fiber. The method efficiently produces a fine fiber from a cellulose raw material at low cost and with a low environmental burden, a fine fiber, and a non-woven fabric.
    Type: Application
    Filed: May 16, 2013
    Publication date: March 19, 2015
    Applicant: Oji Holdings Corporation
    Inventors: Yaping Chao, Yasutomo Noishiki
  • Publication number: 20150064439
    Abstract: Provided is the following sample fixing member for a nano indenter. The member can stably fix a sample, the plastic deformation of the member is alleviated, and the member enables accurate nano indenter measurement. A sample fixing member for a nano indenter of the present invention includes a fibrous columnar structure including a plurality of fibrous columnar objects each having a length of 200 ?m or more.
    Type: Application
    Filed: January 29, 2013
    Publication date: March 5, 2015
    Applicant: NITTO DENKO CORPORATION
    Inventor: Youhei Maeno
  • Publication number: 20150044464
    Abstract: Described herein are nanofibers and methods for making nanofibers that include any one or more of (a) a non-homogeneous charge density; (b) a plurality of regions of high charge density; and/or (c) charged nanoparticles or chargeable nanoparticles. In one aspect, the present invention fulfills a need for filtration media that are capable of both high performance (e.g., removal of particle sizes between 0.1 and 0.5 ?m) with a low pressure drop, however the invention is not limited in this regard.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 12, 2015
    Applicant: CORNELL UNIVERSITY
    Inventors: Yong Lak Joo, Daehwan Cho, Alexander Naydich
  • Publication number: 20150044929
    Abstract: A method for forming biodegradable fibers is provided. The method includes blending polylactic acid with a polyepoxide modifier to form a thermoplastic composition, extruding the thermoplastic composition through a die, and thereafter passing the extruded composition through a die to form a fiber. Without intending to be limited by theory, it is believed that the polyepoxide modifier reacts with the polylactic acid and results in branching of its polymer backbone, thereby improving its melt strength and stability during fiber spinning without significantly reducing glass transition temperature. The reaction-induced branching can also increase molecular weight, which may lead to improved fiber ductility and the ability to better dissipate energy when subjected to an elongation force. Through selective control over this method, the present inventors have discovered that the resulting fibers may exhibit good mechanical properties, both during and after melt spinning.
    Type: Application
    Filed: October 23, 2014
    Publication date: February 12, 2015
    Inventors: Vasily A. Topolkaraev, Ryan J. McEneany, Thomas A. Eby, Tyler J. Lark
  • Patent number: 8951325
    Abstract: 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: Grant
    Filed: February 27, 2013
    Date of Patent: February 10, 2015
    Assignee: BHA Altair, LLC
    Inventors: Vishal Bansal, Jeffery Michael Ladwig, Rana Ghufran Rasheed
  • Patent number: 8940135
    Abstract: The present invention relates to a process for producing filled paper, card and board comprising dewatering a paper stock with sheet formation and drying, wherein biodegradable polyester fibers and/or polyalkylene carbonate fibers are added to the paper stock.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: January 27, 2015
    Assignee: BASF SE
    Inventors: Gabriel Skupin, Rainer Blum
  • Publication number: 20150024158
    Abstract: A copolymer which can be formed from a mixture of nylon 6,12 and nylon 6,10 along with other possible components. The nylon copolymer is not only clear (transparent) but also exhibits high dimensional stability in varying environments, limited water absorption, good wear resistance, the ability to accommodate large amounts of glass fillers, and is more resilient and tougher than either nylon 6,10 or nylon 6, 12. Moreover, the crystallinity rate of this combination of homopolymers is reduced to further improve clarity and transparency.
    Type: Application
    Filed: January 14, 2013
    Publication date: January 22, 2015
    Inventors: Saumitra Bhargava, Keith D. Parks
  • Publication number: 20150024650
    Abstract: The present invention is directed to a new polypropylene composition, polypropylene fibres comprising said polypropylene composition, a spunbonded fabric comprising said polypropylene fibres and/or polypropylene composition, an article comprising said polypropylene fibres and/or said spunbonded fabric as well as to a process for the preparation of such spunbonded fabric and the use of such polypropylene composition for improving the stability of a fibre spinning line.
    Type: Application
    Filed: February 15, 2013
    Publication date: January 22, 2015
    Inventors: Guido Boelaers, Bert Broeders, Joachim Fiebig, Henk Van Paridon
  • Publication number: 20150017439
    Abstract: 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: Application
    Filed: July 10, 2014
    Publication date: January 15, 2015
    Inventor: Luigi Pontarin
  • Publication number: 20150008044
    Abstract: The disclosed invention is a unique drilling fluid composition and method for reducing lost mud circulation in wellbores due to seepage loss into fluid permeable subterranean formations. The drilling fluid composition comprises a variety of shapes and sizes of distinctive unadulterated elastomeric rubber particles derived from the tire retreading (recapping) process. These elastomeric rubber particles are incorporated into an aqueous, hydrocarbon, or synthetic drilling fluid in sufficient amounts as to plug holes, fractures, and fissures, form a mud cake, and thus stem the loss of drilling fluids from the lost circulation zone.
    Type: Application
    Filed: July 5, 2013
    Publication date: January 8, 2015
    Inventor: James Blair Fontenot