Electrical Or Magnetic Product Characteristic Patents (Class 162/138)
  • Patent number: 10570535
    Abstract: The present invention discloses a method for the manufacture of fibrous yarn. The said method includes the steps of providing an aqueous suspension having fibers and at least one rheology modifier, followed by directing said suspension through at least one nozzle, to form at least one yarn. The method further includes subjecting the said at least one yarn to dewatering. The method is characterized in that a hydrogel is provided onto surface of the yarn that exits the at least one nozzle. Further disclosed is a system for manufacture of fibrous yarn and the fibrous yarn so produced during the manufacturing.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: February 25, 2020
    Assignee: Spinnova Oy
    Inventors: Johanna Liukkonen, Sanna Haavisto, Pasi Selenius, Juha Salmela, Janne Poranen
  • Patent number: 10472536
    Abstract: Making formation of a plated layer on a surface of a resin molded article possible, without adding the LDS additive to the thermoplastic resin composition. Provided is a composition for forming a laser direct structuring layer, the composition comprising a water-compatible organic substance, water, and a laser direct structuring additive. Further provided is a kit having the composition for forming a laser direct structuring layer and a method for manufacturing a resin molded article with a plated layer, which uses the composition for forming a laser direct structuring layer.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: November 12, 2019
    Assignee: MITSUBISHI ENGINEERING-PLASTICS CORPORATION
    Inventors: Masahide Sugiyama, Ryusuke Yamada, Tatsuya Kikuchi, Yasushi Yamanaka
  • Patent number: 10374184
    Abstract: An object of the invention is to improve the reliability of a light-emitting device. Another object of the invention is to provide flexibility to a light-emitting device having a thin film transistor using an oxide semiconductor film. A light-emitting device has, over one flexible substrate, a driving circuit portion including a thin film transistor for a driving circuit and a pixel portion including a thin film transistor for a pixel. The thin film transistor for a driving circuit and the thin film transistor for a pixel are inverted staggered thin film transistors including an oxide semiconductor layer which is in contact with a part of an oxide insulating layer.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: August 6, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shingo Eguchi, Yoshiaki Oikawa, Kenichi Okazaki, Hotaka Maruyama
  • Patent number: 10186384
    Abstract: A structural capacitor and method for manufacturing the structural capacitor. A first layer of nonconductive fiber glass may be formed into a desired shape of the structural capacitor, and then a conductive layer made of carbon fiber pre-impregnated material may be placed on the fiber glass layer. A dielectric layer of parylene may then be coated onto the conductive layer using a conformal vapor deposition process. More conductive and dielectric layers may be added in alternating succession until desired structural and/or electrical properties are achieved. A final layer of fiber glass may then be applied and the resulting structural capacitor may be cured.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: January 22, 2019
    Assignee: Honeywell Federal Manufacturing & Technologies, LLC
    Inventors: Steven Todd LaPlant, Daniel John Salzman
  • Patent number: 10105680
    Abstract: The object of the present invention is to provide an activated carbon with a large equilibrium adsorption amount of 1,1,1-trichloroethane. And the activated carbon of the invention comprising: an equilibrium adsorption amount of 1,1,1-trichloroethane is 20 mg/g or more and a pore volume with the pore diameters of more than 20 ? and 300 ? or less is 0.04 cm3/g or more.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: October 23, 2018
    Assignee: KANSAI COKE AND CHEMICALS CO., LTD.
    Inventors: Shoichi Takenaka, Kojiro Tenno
  • Patent number: 10025233
    Abstract: An electroconductive member is provided which has an electric resistance unlikely to be much decreased even by use over a long time, wherein the electroconductive member includes a resin layer containing a thermoplastic resin, a conducting filler, and a diaryl ether compound having a specific structure.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: July 17, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshiyuki Yoshida
  • Patent number: 9902184
    Abstract: The present magnetically bound media with reattachable pages exemplarily comprise a magnetic binding, one or more reattachable pages, and one or more conductive metals attached to the pages and magnetically attracted to the magnetic binding. Thus, a user of the magnetically bound media may disengage one or more of the pages from the magnetic binding and reintegrate those pages into the magnetic binding in any order. This allows for customization of information presentation, sequence, and selection. The small size of the magnetic binding also affords a smaller minimum apparatus size and a quicker means with which to remove, rearrange, and reintegrate pages. Furthermore, the magnetic binding permits pages to be secured in a more professionally presentable manner without punched holes. In an exemplary embodiment, the magnetic binding is a cylindrical or a prismatic, rectangular neodymium or samarium alloy secured within the bound media by a magnet cover or clasp.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: February 27, 2018
    Assignee: REKONECT, INC.
    Inventor: Charles Good-Man
  • Patent number: 9897547
    Abstract: A nanocomposite structure includes: a) a charged fibrous substrate including fibers having disposed on their surfaces a multilayer structure including a layer of a first polyelectrolyte and disposed thereon a layer of a second polyelectrolyte of opposite charge from the first, the second polyelectrolyte forming the outermost layer of the charged fibrous substrate; and b) charged nanorods having a charge opposite that of the charged fibrous substrate, including gold nanorods each having disposed on its surface one or more layers, the outermost of which is a third polyelectrolyte having a charge opposite that of the second polyelectrolyte, wherein the first and third polyelectrolytes may be the same or different; wherein the charged nanorods are disposed unaligned with respect to each other on the charged fibrous substrate.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: February 20, 2018
    Assignee: UNIVERSITY OF DELAWARE
    Inventors: John F. Rabolt, Wenqiong Tang, D. Bruce Chase, Donald L. Sparks
  • Patent number: 9631318
    Abstract: A printable recording media having a weight that is below 75 gsm and that contains a blend of hardwood and softwood fibers, wherein the total fiber content is at least 80 wt % of the total weight of the recording media; and a polymeric-modified pigment carbon black in an amount representing from about 0.02 wt % to about 1 wt % of the total weight of the recording media. Also disclosed herein are methods for making the printable recording media and a printing method using the printable recording media.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: April 25, 2017
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Lokendra Pal, Jr., John L. Stoffel, Xulong Fu
  • Patent number: 9506193
    Abstract: Methods for making a molded non-woven carbon fiber containing mat are provided, along with the resulting mats. Furthermore, methods are generally provided for using the molded non-woven carbon fiber containing mat to form a molded product, along with the resulting molded products.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: November 29, 2016
    Assignee: Neenah Paper, Inc.
    Inventor: Ganesh Deka
  • Patent number: 9406938
    Abstract: A three-dimensional porous electrode architecture for a microbattery includes a substrate having first and second conductive patterns disposed thereon where the first and second conductive patterns are electrically isolated from each other, a three-dimensional porous cathode disposed on the first conductive pattern, and a three-dimensional porous anode disposed on the second conductive pattern. The porous cathode includes a first conductive scaffold conformally coated with a layer of a cathode active material and having a porosity defined by a network of interconnected pores, where the first conductive scaffold has a lateral size and shape defined by the first conductive pattern and porous side walls oriented substantially perpendicular to the substrate. The porous anode includes a second conductive scaffold conformally coated with a layer of an anode active material and having a porosity defined by a network of interconnected pores.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: August 2, 2016
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: William P. King, Paul V. Braun, James H. Pikul
  • Patent number: 9260820
    Abstract: A process is provided for making a fluff pulp sheet, comprising contacting at least one cationic trivalent metal, salt thereof, or combination thereof with a composition comprising fluff pulp fibers and water at a first pH, to form a first mixture; contacting at least one debonder surfactant with the first mixture and raising the pH to a second pH, which is higher than the first pH, to form a fluff pulp mixture; forming a web from the fluff pulp mixture; and drying the web, to make the fluff pulp sheet. A fluff pulp sheet is also provided, comprising a web comprising fluff pulp fibers; at least one cationic trivalent metal, salt thereof, or combination thereof; at least one debonder surfactant; and a fiberization energy of <145 kJ/kg. Products and uses of the fluff pulp sheet are also provided.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: February 16, 2016
    Assignee: INTERNATIONAL PAPER COMPANY
    Inventors: James E. Sealey, Michael Hevenor
  • Patent number: 9169601
    Abstract: A method for treating a paper to provide at least a part of it with anisotropic electric conductivity, by i) applying to the paper a dispersion comprising a non-aqueous, liquid dispersing agent and conductive particles, ii) applying an electric field over at least part of the paper, so that a number of the conductive particles are aligned with the field, thus creating conductive pathways, and wholly or partially eliminating the dispersing agent and allowing the paper to dry thereby stabilizing and preserving the conductive pathways in the paper as well as paper so produced. The paper may alternatively be prepared from a cellulose dispersion comprising conductive particles and subjecting the dispersion for similar aligning of the conductive particles.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: October 27, 2015
    Assignee: CONDALIGN AS
    Inventors: Geir Helgesen, Matti Knaapila, Mark Buchanan
  • Patent number: 9062417
    Abstract: Methods for making a molded non-woven carbon fiber containing mat are provided, along with the resulting mats. Furthermore, methods are generally provided for using the molded non-woven carbon fiber containing mat to form a molded product, along with the resulting molded products.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: June 23, 2015
    Assignee: Neenah Paper, Inc.
    Inventor: Ganesh Deka
  • Publication number: 20150083353
    Abstract: An electrical insulating paper, and methods of making and using same, having a dielectric strength of greater than 40 kV/mm, including 20% to 99% by weight of cellulose and 1% to 80% by weight of mineral fillers.
    Type: Application
    Filed: April 29, 2013
    Publication date: March 26, 2015
    Inventors: Tobias A. Kleemann, Angelika Kleemann
  • Patent number: 8986907
    Abstract: Provided is a porous electrode substrate having high mechanical strength, good handling properties, high thickness precision, little undulation, and adequate gas permeability and conductivity. Also provided is a method for producing a porous electrode substrate at low costs. A porous electrode substrate is produced by joining short carbon fibers (A) via mesh-like of carbon fibers (B) having an average diameter of 4 ?m or smaller. Further provided are a membrane-electrode assembly and a polymer electrolyte fuel cell that use this porous electrode membrane. A porous electrode substrate is obtained by subjecting a precursor sheet, in which short carbon fibers (A) and short carbon fiber precursors (b) having an average diameter of 5 ?m or smaller have been dispersed, to carbonization treatment after optional hot press forming and optional oxidization treatment.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: March 24, 2015
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Kazuhiro Sumioka, Yoshihiro Sako
  • Patent number: 8900413
    Abstract: A nonwoven fabric suitable for electrical insulation or as a battery separator is provided. The nonwoven fabric includes a PPS fiber, the nonwoven fabric being obtainable by a process for papermaking and having a front surface with a water contact angle greater than that of a back surface of the nonwoven fabric by 5° or more. A suitable method for producing the nonwoven fabric includes dispersing an undrawn polyphenylene sulfide fiber in water, depositing the fiber to form paper, and performing heat and pressure treatment with a calender having two rolls with surface temperatures different by 10° C. or more.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: December 2, 2014
    Assignee: Toray Industries, Inc.
    Inventors: Kenko Yamada, Satoshi Naruko
  • Publication number: 20140299820
    Abstract: A composition of matter comprising graphene nano platelets, one or more ceramic fillers and, one or more high temperature fibers. In another embodiment, there is a flat sheet article comprising a calendered combination of graphene nano platelets, one or more ceramic fillers and, one or more high temperature fibers. A process for preparing an article containing graphene nano platelets, one or more ceramic fillers and, one or more high temperature fibers.
    Type: Application
    Filed: April 8, 2013
    Publication date: October 9, 2014
    Inventors: Michael Harandek, Hiroyuki Fukushima, Jeffri Narendra
  • Publication number: 20140231035
    Abstract: “PROCESS FOR OBTAINING MAGNETIC CELLULOSE PAPER AND THE RESPECTIVE PRODUCT” refers to a method for the production of magnetic paper and the respective paper, belonging to the field of paper products; in its usual form, the magnetic sheets, known as magnetic paper, are composed by magnetic blankets covered with cellulose sheets, and this setting results in a sheet of high thickness and high cost, in order to solve these disadvantages, the object of the present patent application was developed, referring to a magnetic paper, which differentiates itself from others because it has magnetic particles in its fibers, and also in its production process, more specifically in the magnetic cellulose sheet, in presentation is comprised by paper sheet (17) which can be of varied densities and has magnetized (11) ferrous-magnetic granules or particles of magnets inserted between its cellulose fibers during the manufacturing process of the sheet.
    Type: Application
    Filed: November 6, 2013
    Publication date: August 21, 2014
    Inventor: Nathan Tafla Rabinovitch
  • Patent number: 8785623
    Abstract: The present invention relates to ferromagnetic materials based on nano-sized bacterial cellulose templates. More specifically, the present invention provides an agglomerate free magnetic nanoparticle cellulose material and a method of forming such magnetic nanoparticle cellulose material. Further, the magnetic nonoparticles are physically attached on the cellulose material and evenly distribute.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: July 22, 2014
    Assignee: Cellutech AB
    Inventors: Richard T. Olsson, My Ahmed Said Samir Azizi, Lars Berglund, Ulf W. Gedde
  • Patent number: 8764938
    Abstract: A method is provided for making “smart” paper and “smart” microfibers by means of nanotechnology layer-by-layer techniques. The method comprises forming an aqueous pulp of lignocellulose fibers and nanocoating it by alternatively adsorbing onto the fibers multiple consecutively-applied layers of organized ultra thin and oppositely-charged polyelectrolytes, at least one of which is an electrically conductive polymer or nanoparticle (or a magnetically active polymer or nanoparticle, or an optically active polymer or nanoparticle), and another one of which has a charge opposite of said electrically conductive polymer or nanoparticle (or magnetically active polymer or nanoparticle, or optically active polymer or nanoparticle), thereby making a modified aqueous pulp of electrically conductive (or magnetically active, or optically active) multi-layer nanocoated lignocellulose fibers.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: July 1, 2014
    Assignee: Louisiana Tech Research Foundation; a Division of Louisiana Tech University Foundation, Inc.
    Inventors: Mangilal Agarwal, Yuri M. Lvov, Khodadad Varahramyan
  • Publication number: 20140178661
    Abstract: A fibrous substrate comprising a consolidated product of a fiber composition is provided comprising polyimide fibers; fibers selected from aromatic polyamide fibrids or polycarbonate fibers; aromatic polyamide fibers. A process of preparing a fibrous substrate is disclosed, comprising forming a layer from a slurry comprising a suspension solvent; and fiber composition comprising a combination of polyimide fibers; aromatic polyamide fibers; aromatic polyamide fibrids; each based on the total weight of the fibers in the fiber composition; dewatering the layer; and consolidating the layer to form the fibrous substrate; wherein a layer of polyimide fiber aromatic polyamide fibrid is applied to each surface of the fibrous substrate either before or after said consolidating step, and the substrate and polyimide layers are together subjected to a consolidating step. In another embodiment, articles comprising the above fibrous substrates are provided.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Inventors: Thomas Adjei, Benny E. David, John R. Krahn, Dennis G. Lockyer, Paul B. Lockyer, David Smith, Erich Otto Teutsch, Peter J. Zuber
  • Patent number: 8747614
    Abstract: Provided is a conductive aramid paper comprising an aramid short fiber, an aramid fibrid, and a conductive filler, and having a density of 0.45 to 1.10 g/cm3, a tensile strength of 2.5 kN/m or higher, and a surface resistivity of 1.0×101 to 5.0×102?/?. This conductive aramid paper has an electric field relaxation function and an antistatic function enough to be favorably used as a material for reducing corona in rotating electrical machines, and also antistatic components for electrical and electronic devices, and sub-materials for processing or assembling any of these.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: June 10, 2014
    Assignee: Dupont Teijin Advanced Papers (JAPAN), Ltd.
    Inventors: Tatsushi Fujimori, Shinji Naruse
  • Publication number: 20140034256
    Abstract: Provided is a conductive aramid paper comprising an aramid short fiber, an aramid fibrid, and a conductive filler, and having a density of 0.45 to 1.10 g/cm3, a tensile strength of 2.5 kN/m or higher, and a surface resistivity of 1.0×101 to 5.0×102?/?. This conductive aramid paper has an electric field relaxation function and an antistatic function enough to be favorably used as a material for reducing corona in rotating electrical machines, and also antistatic components for electrical and electronic devices, and sub-materials for processing or assembling any of these.
    Type: Application
    Filed: March 27, 2012
    Publication date: February 6, 2014
    Inventors: Tatsushi Fujimori, Shinji Naruse
  • Patent number: 8628839
    Abstract: A recording medium comprising a magnetic material inside, and having a Taber abrasion amount of 10 mg or less. Also provided is a recording medium comprising a magnetic material inside, and having, in an environment of 23° C. and 50% RH, a surface electroresistivity of 1×109 ?/sq to 2×1011 ?/sq and a volume electroresistivity of 1×1010 ?cm to 2×1012 ?cm.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: January 14, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tsukasa Matsuda, Eizo Kurihara, Shoji Yamaguchi, Kunihiro Takahashi, Mario Fuse, Yasunori Koda, Ryuichi Kisaka, Tomotsugu Takahashi
  • Patent number: 8597465
    Abstract: A paper includes a paper body containing pulp fibers, a low electric-resistance region provided in a layer inside the paper body and being lower than the paper body in electric resistivity, and magnetic bodies arranged inside the low electric-resistance region and having a large Barkhausen effect.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: December 3, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Eizo Kurihara, Katsumi Sakamaki, Mario Fuse, Shoji Yamaguchi
  • Publication number: 20130277089
    Abstract: An electrical insulating paper including 40-100% by weight of para-aramid fibrid wherein the para-aramid has at least 95% para bonds between the aromatic moieties. The paper may further contain up to 60% by weight of at least one of aramid pulp, aramid floc, aramid staple fiber, aramid fibril, meta-aramid fibrid, meta-/para-aramid fibrid, fillers, thermal conductive fillers, and common paper additives such as fillers, for example kaolin, binders, fibers, tackifiers, and adhesives. The paper can be used in insulated conductors and transformers, generators and electric motors.
    Type: Application
    Filed: December 23, 2011
    Publication date: October 24, 2013
    Applicant: TEIJIN ARAMID B.V.
    Inventors: Ben Gerhardus Antonius Rolink, Richard Visser, Frank Diedering
  • Publication number: 20130264019
    Abstract: A method for treating a paper to provide at least a part of it with anisotropic electric conductivity, by i) applying to the paper a dispersion comprising a non-aqueous, liquid dispersing agent and conductive particles, ii) applying an electric field over at least part of the paper, so that a number of the conductive particles are aligned with the field, thus creating conductive pathways, and wholly or partially eliminating the dispersing agent and allowing the paper to dry thereby stabilizing and preserving the conductive pathways in the paper as well as paper so produced. The paper may alternatively be prepared from a cellulose dispersion comprising conductive particles and subjecting the dispersion for similar aligning of the conductive particles.
    Type: Application
    Filed: December 14, 2011
    Publication date: October 10, 2013
    Applicant: CONDALIGN AS
    Inventors: Geir Helgesen, Matti Knaapila, Mark Buchanan
  • Patent number: 8444813
    Abstract: A method for preparing aramid insulating paper, includes the operations of: providing aramid pulp slurry and aramid short fiber slurry at respective desired concentrations; blending, beating and fluffing the aramid pulp slurry and the aramid short fiber slurry in a given ratio to afford a paper pulp at a desired concentration; transiting the paper pulp to a papermaking machine fitted with a head box to form and make wet paper sheets; pressing to dewater the wet paper sheets and drying the dewatered paper sheets; and calendering the dried paper sheets at a high temperature to obtain the aramid insulating paper, wherein in operation iii), at least one ultrasonic generator is mounted on the head box to apply directional ultrasonic waves to the paper pulp flowing through the heat box. The aramid insulating paper prepared according to the method of the invention has enhanced strength, smoothness and uniformity.
    Type: Grant
    Filed: September 5, 2011
    Date of Patent: May 21, 2013
    Inventor: Zhou Zhong
  • Patent number: 8381536
    Abstract: Conductive nonwoven webs are disclosed. The nonwoven webs contain pulp fibers combined with conductive fibers. In one embodiment, the webs are made in a wetlaid tissue making process.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: February 26, 2013
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Davis-Dang H. Nhan, Duane Joseph Shukoski, Michael J. Rekoske
  • Patent number: 8382945
    Abstract: Expandable microspheres formed by suspension polymerization using a shot growth method are provided. The microspheres are formed of a continuous, gas impermeable shell surrounding a blowing agent. The shell includes a first polymer layer formed from primary monomers and a second layer that includes a chemically reactive monomer or a high Tg monomer. To form the microspheres, the primary monomers are polymerized in a reaction vessel to an approximate 90% polymerization, at which time a secondary monomer that is either a monomer having a Tg of at least 85° C. or a chemically reactive monomer, is added to the reaction vessel to drive the polymerization reaction to completion. The outer layer thus contains either a larger amount of the high Tg monomer or a chemically reactive monomer that possesses the ability to covalently bond a cationic species. The microspheres may be used in papermaking processes to increase the paper bulk.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: February 26, 2013
    Assignee: International Paper Company
    Inventors: Yaoliang Hong, Kosaraju Krishna Mohan, Peter M. Froass, Mark Fagan, Christopher D. Anderson, Brian Boyars, Eric Scott Daniels, Victoria Laurentia Dimonie, Edward David Sudol, Andrew Klein
  • Patent number: 8372242
    Abstract: Conductive nonwoven webs are disclosed. The nonwoven webs contain pulp fibers combined with conductive fibers. In one embodiment, the webs are made in a wetlaid tissue or paper making process. The pulp fibers contained in the webs may comprise softwood fibers, while the conductive fibers may comprise carbon fibers. Base webs can be produced having a resistance of less than about 100 Ohms/square in one embodiment. Once produced, the conductive material can be cut into slits that are then wound on spools. From the spools, the conductive slits can be fed into a process for making any suitable product.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: February 12, 2013
    Assignee: Kimberly-Clark Worldwide, inc.
    Inventors: Thomas Michael Ales, Davis-Dang H. Nhan, Duane Joseph Shukoski, Michael John Rekoske
  • Patent number: 8349131
    Abstract: A method is provided for making “smart” paper and “smart” microfibers by means of nanotechnology layer-by-layer techniques. The method comprises forming an aqueous pulp of lignocellulose fibers and nanocoating it by alternatively adsorbing onto the fibers multiple consecutively-applied layers of organized ultra thin and oppositely-charged polyelectrolytes, at least one of which is an electrically conductive polymer or nanoparticle (or a magnetically active polymer or nanoparticle, or an optically active polymer or nanoparticle), and another one of which has a charge opposite of said electrically conductive polymer or nanoparticle (or magnetically active polymer or nanoparticle, or optically active polymer or nanoparticle), thereby making a modified aqueous pulp of electrically conductive (or magnetically active, or optically active) multi-layer nanocoated lignocellulose fibers; then draining the water out of the modified aqueous pulp to form sheets of smart microfibers.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: January 8, 2013
    Assignee: Louisiana Tech Research Foundation: a division of Louisiana Tech University Foundation, Inc.
    Inventors: Mangilal Agarwal, Yuri M. Lvov, Khodadad Varahramyan
  • Patent number: 8313832
    Abstract: The present invention provides for a high thermal conductivity (HTC) paper that comprises a host matrix, such as mica, and HTC materials intercalated into the host matrix. The HTC materials are comprised of at least one of nanofillers, diamond like coatings directly on the host matrix, and diamond like coatings on the nanofillers.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: November 20, 2012
    Assignee: Siemens Energy, Inc.
    Inventors: James D Smith, Gary Stevens, John W Wood
  • Patent number: 8257840
    Abstract: The present invention provides a security functional thin film and a security product containing such a thin film. The security functional thin film is of an amorphous structure, and possesses soft magnetic characteristics. Large Barkhausen effect can be detected along the in-plane preferred direction of magnetization; and the Large Barkhausen effect significantly attenuates, or no such signal can be detected, in a direction perpendicular to the in-plane preferred direction of magnetization. The thin film has a thickness of 20-300 nm, and the thin film also possesses element encoding characteristics that can be authenticated by experts. The security functional thin film of the present invention can be fabricated by magnetron sputtering web coating process.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: September 4, 2012
    Assignee: China Banknote Printing And Minting Corporation
    Inventors: Xiaowei Li, Xinyu Li, Ce Li, Jing Yang, Feng Pan, Caixia Li, Yu Cao
  • Patent number: 8172982
    Abstract: Conductive nonwoven webs are disclosed. The nonwoven webs contain pulp fibers combined with conductive fibers. In one embodiment, the webs are made in a wetlaid tissue or paper making process. The pulp fibers contained in the webs may comprise softwood fibers, while the conductive fibers may comprise carbon fibers. Base webs can be produced having a resistance of less than about 100 Ohms/square in one embodiment. Once produced, the conductive material can be cut into slits that are then wound on spools. From the spools, the conductive slits can be fed into a process for making any suitable product.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: May 8, 2012
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Thomas Michael Ales, Davis-Dang H. Nhan, Duane Joseph Shukoski, Michael John Rekoske
  • Publication number: 20120055641
    Abstract: Conductive nonwoven webs are disclosed. The nonwoven webs contain pulp fibers combined with conductive fibers. In one embodiment, the webs are made in a wetlaid tissue making process.
    Type: Application
    Filed: November 15, 2011
    Publication date: March 8, 2012
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Davis-Dang H. Nhan, Duane Joseph Shukoski, Michael J. Rekoske
  • Patent number: 8118975
    Abstract: This invention relates to papers made with fibrids containing a polymer or copolymer derived from a monomer selected from the group consisting of 4,4?diaminodiphenyl sulfone, 3,3?diaminodiphenyl sulfone, and mixtures thereof. Such papers have high thermal stability and accept ink more readily than papers made solely with aramid fibrids.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: February 21, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mikhail R. Levit, Vlodek Gabara, Gary Lee Hendren
  • Patent number: 8114251
    Abstract: This invention relates to papers made with fibrids containing a polymer or copolymer derived from a monomer selected from the group consisting of 4,4?diaminodiphenyl sulfone, 3,3?diaminodiphenyl sulfone, and mixtures thereof. Such papers have high thermal stability and accept ink more readily than papers made solely with aramid fibrids.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: February 14, 2012
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mikhail R Levit, Vlodek Gabara, Gary Lee Hendren
  • Patent number: 8110008
    Abstract: The present invention relates to secure paper (1), characterized by the fact that it comprises: at least one fiber layer (2); and at least one electronic chip (3) integrated in the fiber layer (2), said chip (3) including a memory (10) in which at least a first key is stored for use in authenticating the secure paper; the chip being configured to spoil, and in particular to delete, the first key in the event of an attempt at forced access to the chip, so as to make it impossible subsequently to authenticate the secure paper (1).
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: February 7, 2012
    Assignee: Arjowiggins Security
    Inventors: Paolo Perori, Frederic Vicentini, Dayton Marcucci, Pierre Doublet
  • Patent number: 7998592
    Abstract: A recording paper used for an electrophotographic system is provided, wherein, in a gas chromatograph generated using a headspace method by holding two pieces of the paper of dimensions about 1 cm×about 1 cm at about 120° C. for about 3 minutes, the quantity of aldehyde compounds generated having a straight-chain alkyl chain of about 5 to about 20 carbon atoms is equivalent to a peak surface area ratio of no more than about 65% and a peak surface area of no more than about 40,000.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: August 16, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Chizuru Koga, Tsukasa Matsuda, Toshiyuki Kasahara, Kouzou Ohta
  • Publication number: 20110186252
    Abstract: In an engineered composite product containing cellulose fibres, cellulosic fibrillar fines and pigment, the main component of the composite product is pigment with a percentage of 40-80% by weight, the percentage of cellulosic fibrillar fines is 15-40% by weight, and the percentage of cellulose fibres is 5-30% by weight. Method of making the engineered composite product comprises the steps of combining said components in an aqueous solution and preparing the composite product by de-watering the aqueous solution. The components are combined in the aqueous solution in such proportion that the percentage of pigment in the final composite product is 40-80% by weight, the percentage of cellulosic fibrillar fines is 15-40% by weight, and the percentage of cellulose fibres is 5-30% by weight.
    Type: Application
    Filed: August 3, 2009
    Publication date: August 4, 2011
    Applicant: UPM-KYMMENE CORPORATION
    Inventors: Ramjee Subramanian, Hannu Paulapuro
  • Patent number: 7943066
    Abstract: The present invention provides electrically conductive paper composites prepared from cellulose fibers modified to bind a conducting polymer to a surface of the cellulose fibers and mixing these with unmodified cellulose fibers and forming paper products from the composite. Conducting paper composites so formed were investigated for their conductivity and strength properties as a function of monomer dosage or percentage of modified fibers in the mixture and for the composites it was found that less monomer (i.e. conductive polymer) was needed to achieve the same conductivity obtained from conducting paper made from only the modified cellulose. A higher tensile strength was obtained with the composite conducting paper than was attained with conducting paper made from only the modified cellulose. The electrically conductive paper composites may also be prepared from cellulose fibers mixed with particulate fillers modified to bind a conducting polymer to a surface of the particulate fillers.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: May 17, 2011
    Assignee: The University of New Brunswick
    Inventors: Yonghao Ni, Bin Huang, Guojun Kang
  • Patent number: 7816002
    Abstract: A recording paper contains a pulp fiber and a magnetic fiber having a large Barkhausen effect. The fiber orientation ratio of this recording paper by an ultrasonic propagation velocity method is in a range of more than 1.3 to less than 1.8, and the degree of shrinkage in an MD thereof is 0.25% or less.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: October 19, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tsukasa Matsuda, Eizo Kurihara, Mario Fuse, Shoji Yamaguchi, Kunihiro Takahashi, Tomofumi Tokiyoshi
  • Patent number: 7803247
    Abstract: This invention relates to papers made with floc containing a polymer or copolymer derived from a monomer selected from the group consisting of 4,4?diaminodiphenyl sulfone, 3,3?diaminodiphenyl sulfone, and mixtures thereof. Such papers have higher elongation-at-break and work-to-break (toughness) properties and exhibit less shrinkage at high temperatures than papers made with solely with poly (metaphenylene isophthalamide) floc.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: September 28, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mikhail R. Levit, Vlodek Gabara, Gary Lee Hendren
  • Publication number: 20100071609
    Abstract: The present invention relates to a security film comprising a fibrous substrate incorporated at least partially in which is a security strip that comprises at least one security element and that extends between two edges of said fibrous substrate, said security strip being made of paper and comprising an adhesive.
    Type: Application
    Filed: October 11, 2007
    Publication date: March 25, 2010
    Applicant: ARJOWIGGINS
    Inventor: Henri Rosset
  • Publication number: 20100051220
    Abstract: Expandable microspheres formed by suspension polymerization using a shot growth method are provided. The microspheres are formed of a continuous, gas impermeable shell surrounding a blowing agent. The shell includes a first polymer layer formed from primary monomers and a second layer that includes a chemically reactive monomer or a high Tg monomer. To form the microspheres, the primary monomers are polymerized in a reaction vessel to an approximate 90% polymerization, at which time a secondary monomer that is either a monomer having a Tg of at least 85° C. or a chemically reactive monomer, is added to the reaction vessel to drive the polymerization reaction to completion. The outer layer thus contains either a larger amount of the high Tg monomer or a chemically reactive monomer that possesses the ability to covalently bond a cationic species. The microspheres may be used in papermaking processes to increase the paper bulk.
    Type: Application
    Filed: August 28, 2009
    Publication date: March 4, 2010
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: Yaoliang Hong, Kosaraju Krishna Mohan, Peter M. Froass, Mark Fagan, Christopher D. Anderson, Brian Boyars, Eric Scott Daniels, Victoria Laurentia Dimonie, Edward David Sudol, Andrew Klein
  • Publication number: 20100032114
    Abstract: This invention relates to composition containing expandable microspheres and at least one ionic compound and having a zeta potential that is greater than or equal to zero mV at a pH of about 9.0 or less at an ionic strength of from 10?6 M to 0.1M, as well as methods of making and using the composition.
    Type: Application
    Filed: March 26, 2009
    Publication date: February 11, 2010
    Inventors: Krishna K. Mohan, Cynthia A. Goliber, Yaoliang Hong, Peter M. Froass, Herbert Young, D. W. Anderson, Richard D. Faber
  • Patent number: 7641764
    Abstract: The object of the present invention is to provide a non-woven fabric comprising a glass fiber which has a strength, flexibility and water resistance, has less skin irritancy and a good surface decoration property, and a process for producing the same, more specifically, to provide a non-woven fabric for a gypsum board which is used as a reinforcing material for a gypsum board placed on one side or both sides of the gypsum board, and a process for producing the same. A non-woven fabric for a gypsum board comprising 20 to 60% by weight of a glass fiber, 10 to 50% by weight of an organic fiber and 10 to 50% by weight of a fibrous binder, which contains the organic fiber at least on a gypsum core contact surface, is provided.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: January 5, 2010
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Mitsuo Yoshida, Kunihiro Tanabe, Hitoshi Fujiki
  • Patent number: 7510627
    Abstract: An acoustic paper diaphragm excellent in moisture resistance and acoustic characteristics and not impairing the biodegradability is provided. An acoustic paper diaphragm is formed of paper in which polylactide resin emulsion that is a biodegradable polymeric material is internally added as a sizing agent.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: March 31, 2009
    Assignee: Sony Corporation
    Inventors: Masaru Uryu, Kunihiko Tokura