Synthetic (including Chemically Modified Cellulose) Patents (Class 162/146)
  • Patent number: 11131064
    Abstract: The present invention provides a preparation method of aramid fiber far-infrared emitting paper. In the present invention, para-aramid chopped fiber and para-aramid pulp fiber are used as paper base functional materials with excellent characteristics of high specific strength and high specific stiffness. In addition, the para-aramid chopped fiber and the para-aramid pulp fiber can form a paper material with pores and porous channels, and carbon nanotubes are embedded into the structural pores and porous channels of the paper material. Therefore, the aramid fiber far-infrared emitting paper has better molding quality and composite performance. Results of embodiments indicate that: A far-infrared wavelength emitted by the aramid fiber far-infrared emitting paper provided in the present invention is 4 ?m to 20 ?m, a main frequency band thereof is approximately 10 ?m, and far-infrared conversion efficiency is up to 99%; and the aramid fiber far-infrared emitting paper has tensile strength of 0.12 KN/mm2 to 0.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: September 28, 2021
    Assignee: NANOCARBON CO., LTD.
    Inventors: Xiaogang Sun, Dianmo Zheng, Manyuan Cai, Yanyan Nie, Long Chen, Hezheng Pan
  • Patent number: 11124920
    Abstract: A method of making a tissue basesheet includes: (a) forming a nascent web from an aqueous furnish of papermaking fiber; (b) applying an aqueous composition of nanofibrillar cellulose to a surface of the nascent web; and (c) drying the nascent web to provide the tissue basesheet. Typically the basesheet is constructed with a tissue substrate of cellulosic papermaking fiber having applied to a surface thereof a layer of nanofibrillar cellulose, the tissue substrate having a basis weight of from 15 g/m2 to 30 g/m2 and the layer of nanofibrillar cellulose having a coatweight of from 0.25 g/m2 to 3 g/m2. The product may be incorporated into 2-ply or 3-ply bath tissue.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: September 21, 2021
    Assignee: GPCP IP Holdings LLC
    Inventor: Carlos L. Salas Araujo
  • Patent number: 11111976
    Abstract: The present invention relates to a method and an apparatus for manufacturing a brake pad, which are configured to stabilize quality of the brake pad. The present invention provides a method of manufacturing a brake pad including a friction material and a backing plate which are coupled to each other, the method including: a preliminary process of preparing friction material powder and the backing plate; a forming process of forming the friction material powder in the form of the friction material and attaching the friction material to one surface of the backing plate; a quality stabilization process of heating and pressing the friction material after the forming process is completed; a heat treatment process of heating the brake pad at a predetermined temperature after the quality stabilization process is completed; and a grinding process of grinding the friction material.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: September 7, 2021
    Assignee: KB AUTOSYS CO., LTD
    Inventor: Yong Woong Kim
  • Patent number: 11078626
    Abstract: A method for forming a thermoplastic composite material in a papermaking machine, wherein the method comprises the steps of: forming an aqueous fiber material suspension; bringing said fiber suspension in contact with at least one additive, said additive being introduced into said fiber suspension, whereby said additive reacts to form a precipitation product onto or into the fibers, thereby forming an intermediate suspension, introducing, after the formation of the intermediate suspension, a plastic material into said intermediate suspension, thereby forming a plastic fiber composite suspension.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: August 3, 2021
    Assignee: Stora Enso OYJ
    Inventor: Kaj Backfolk
  • Patent number: 10883228
    Abstract: A method of making a tissue or paper towel product including forming two or more multi-layered webs of cellulosic fibers by a papermaking process using a structured fabric, the papermaking process comprising a step of adding a cross-linker to a pulp slurry comprising the cellulosic fibers so that at least some of the cellulosic fibers are cross-linked within the pulp slurry, and laminating the two or more multi-layered webs together so as to form a multi-ply product, each ply of the multi-ply product comprising cross-linked fibers as a percentage of the total fiber mix of the ply.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: January 5, 2021
    Assignee: STRUCTURED I, LLC
    Inventors: James E. Bradbury, Dustin Ziegelman, James E. Sealey, II, Byrd Tyler Miller, IV
  • Patent number: 10830296
    Abstract: The present application discloses a ceramic preform, a method of making a ceramic preform, a MMC comprising a ceramic preform, and a method of making a MMC. The method of making a ceramic preform generally comprises preparing reinforcing fibers, preparing a ceramic compound, and forming the compound into a desired shape to create the ceramic preform. In certain embodiments, the ceramic compound is formed as either a disc or a ring for use in a brake disc metal matrix composite. The metal matrix composite generally comprises the ceramic preform infiltrated with a molten metal to form the brake disc metal matrix composite. The method of making the metal matrix composite generally comprises heating the ceramic preform, placing the ceramic preform in a mold cavity of a die cast mold, and introducing molten metal into the mold cavity to infiltrate the ceramic preform to form the brake disc metal matrix composite.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: November 10, 2020
    Assignee: INTELLECTUAL PROPERTY HOLDINGS, LLC
    Inventors: Dan T. Moore, Evelyn M. Deliso, Joseph B. Richey, III, Ryan G. Sarkisian, Tongzhai Gao, Andrew Dorman
  • Patent number: 10767311
    Abstract: A fibrous substrate material for producing a porous coating base paper or prepreg comprises a planar impregnatable structure made of cellulose fibers, which contains at least one pigment species and optionally contains further additives conventional for paper. The cellulose fibers contain a proportion of 1 to 20 wt.-% of nanofibrillated cellulose (NFC). A method for producing the fibrous substrate material comprises the steps of: providing an aqueous suspension containing a cellulose containing material and an admixture of said pigment species and, optionally, further additives conventional for paper, sheet forming, drying. The cellulose containing material contains a proportion of 1 to 20 wt.-% of NFC with a specific surface (SSA) of at least 125 m2/g.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: September 8, 2020
    Assignees: Schattdecor AG, Factum Consult GmbH
    Inventors: Dieter Walesch, Tanja Zimmermann, Gilberto Siqueira, Sebastien Josset
  • Patent number: 10694813
    Abstract: The invention aims to provide a shoe sole member capable of achieving comfort when using shoes and exhibiting excellent shape-recovering properties after using the shoes. Provided is a shoe sole member formed using a polymer foam, and the polymer foam contains fibers dispersed therein.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: June 30, 2020
    Assignee: ASICS CORPORATION
    Inventor: Junichiro Tateishi
  • Patent number: 10646386
    Abstract: Provided is a method for efficiently recovering pulp fiber from used hygiene products that include pulp fiber and a polymer absorbent. This method is characterized by including a step for introducing the used hygiene product into a treatment tank in which an aqueous solution with ozone dissolved therein has been introduced, and a step for treating the used hygiene product while infusing water into the treatment tank at a first flow rate, extracting the aqueous solution from the treatment tank at a second flow rate and introducing a gas containing ozone into the aqueous solution in the treatment tank, thereby decomposing the polymer absorbent, lowering the molecular weight thereof, and making the same dissolvable.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: May 12, 2020
    Assignee: UNICHARM CORPORATION
    Inventors: Takayoshi Konishi, Toshio Hiraoka, Noritomo Kameda, Hideaki Ichiura
  • Patent number: 10563352
    Abstract: A scalable, energy efficient process for preparing cellulose nanofibers is disclosed. The process employs a depolymerizing treatment with one or both of: (a) a relatively high charge of ozone under conditions that promote the formation of free radicals to chemically depolymerize the cellulose fiber cell wall and interfiber bonds; or (b) a cellulase enzyme. Depolymerization may be estimated by pulp viscosity changes. The depolymerizing treatment is followed by or concurrent with mechanical comminution of the treated fibers, the comminution being done in any of several mechanical comminuting devices, the amount of energy savings varying depending on the type of comminuting system and the treatment conditions. Comminution may be carried out to any of several endpoint measures such as fiber length, % fines or slurry viscosity.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: February 18, 2020
    Assignee: University of Maine System Board of Trustees
    Inventors: Michael A. Bilodeau, Mark A. Paradis
  • Patent number: 10501892
    Abstract: The present invention provides a tissue product formed from a fiber furnish consisting essentially of short cellulosic fibers, such as fibers having an average fiber length less than about 2.0 mm, and a synthetic fiber having at least one cross-section dimension less than about 20 microns. The invention also provides a tissue product comprising at least one wet laid multi-layered tissue web comprising a fiber furnish consisting essentially of synthetic fibers and short cellulosic fibers, the multi-layered tissue web having a first and second outer layer and a middle layer disposed there between where the synthetic fibers are selectively disposed in the middle layer. Generally the tissue product comprises less than about 30 percent, by weight of the tissue product, synthetic fiber. In a preferred embodiment the tissue product comprises non-fibrillated polyethylene terephthalate (PET) fibers having a circular cross-section shape with a diameter less than about 5.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: December 10, 2019
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Thomas Gerard Shannon, Bo Shi
  • Patent number: 10471395
    Abstract: A hollow fiber membrane and a method of preparing the same. The hollow fiber membrane has an inner surface and an outer surface, wherein the inner surface has a zebra-stripe pattern in which a dense portion and a porous portion are alternately formed in a longitudinal direction of the hollow fiber membrane.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: November 12, 2019
    Assignee: LOTTE CHEMICAL CORPORATION
    Inventors: Dong Jun Im, Bum Jin Park, Chang Min Seo
  • Patent number: 10400073
    Abstract: The invention concerns a method for the surface crosslinking of a polymer, in particle form, having one or a plurality of labile hydrogen functions, comprising a step of implementing a crosslinking agent comprising at least two functions likely to react with the labile hydrogen functions of the polymer, the crosslinking method being carried out at a temperature lower than the melting point of the polymer. The invention also concerns a powder particle and the uses of same.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: September 3, 2019
    Assignee: Arkema France
    Inventors: Geoffroy Cammage, Nicolas Dufaure, Guillaume Le, Cyrille Mathieu
  • Patent number: 10358773
    Abstract: The present invention relates to a resin fine particle dispersion optimal for manufacturing a sheet product such as paper. Specifically, an object of the present invention is to provide a resin fine particle dispersion with which a sheet product having excellent heat resistance and high mechanical strength is obtained, and which has a small environmental load due to a small amount of resin particles remaining in wastewater after papermaking. Provided are a resin fine particle dispersion including resin fine particles (A), a fiber material (B), an ionic polyacrylamide (C), and water as essential components, and a sheet product and a friction plate using this.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: July 23, 2019
    Assignee: DIC Corporation
    Inventors: Seiji Kimoto, Shigenobu Kida
  • Patent number: 10301775
    Abstract: Method for producing a sterilized foam web, wherein the method comprising the steps of preparing a wet foam (1), feeding the wet foam (1) to a head box (2, 11), distributing the wet foam by the head box (2, 11), treating the wet foam (1) with electron beam radiation (3a, 3b, 3c) to immobilize and sterilize the wet foam (1), receiving the electron beam treated foam on a moving wire (4) to form a foam web (6, 13), pressing and the foam web (6, 13), and drying the foam web (6, 13).
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: May 28, 2019
    Assignee: Stora Enso OYJ
    Inventors: Jan-Erik Nordström, Jari Räsänen
  • Patent number: 10263232
    Abstract: A drying device includes a first cylindrical member and a second cylindrical member. The first cylindrical member has an outer peripheral surface having a surface temperature that is higher on one width wise side where an end is present than on the other widthwise side where another end is present, whereas the second cylindrical member has an outer peripheral surface having a surface temperature that is lower on the one widthwise side where an end is present than on the other widthwise side where another end is present.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: April 16, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Akihiko Shin, Koichiro Watanabe
  • Patent number: 10161461
    Abstract: This invention relates to a paper friction material and a method of manufacturing the same, wherein the paper friction material is configured such that dispersibility and bondability are increased between a filler and a matrix. The paper friction material which is suitable for use in a vehicle, includes a friction base including pulp and a coating layer formed on the friction base using a mixture of latex and a functional material. The OH reactive group of the pulp and the aromatic ring of the latex are hydrogen-bonded so that the friction base and the coating layer are coupled with each other.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: December 25, 2018
    Assignees: Hyundai Motor Company, JINMYUNG FRICTECH CO., LTD.
    Inventors: Yoon Cheol Kim, Jai Min Han, Min Gyun Chung, Jae Young Lee, Byung Chan Lee, Yoon Joo Rhee, Sung Jin Hong, Eun Pa Cho, Chi Deuk Ahn
  • Patent number: 10131586
    Abstract: The invention relates to a solid inoculum carried in a superabsorbent agro-pellet with a variable volume, operating in a natural mini fermenter preloaded with an anhydrous nutritive medium, encouraging rapid regrowth of the viable micro-organisms and the continuous multiplication thereof. The liquid inoculum incorporated into the carrier at a low density of microbial cells is preferably comprised between 1/500e and 1/10e of the density recommended by the norm for a liquid inoculum of the same strain. The bioaugmentation of the microbial population is between 104 and 106 additional microbial cells. The solid inoculum according to the invention allows the preservation of the microorganisms and the handling thereof in advantageous conditions. It is not exposed to soil leaching caused by water. Said inoculum is used for the biological treatment of crops for the development and/or the preservation thereof from parasite attacks.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: November 20, 2018
    Assignee: AB7 Innovations S.A.S.U.
    Inventors: Rene Chelle, Urbain Makoumbou
  • Patent number: 10100467
    Abstract: A process for manufacturing structured material by providing cellulose fibers and at least one filler and/or pigment, combining the cellulose fibers and the at least one filler and/or pigment, fibrillating the cellulose fibers in the presence of the at least one filler and/or pigment until a gel is formed, subsequently providing additional non-fibrillated fibers, and combining the gel with the additional non-fibrillated fibers.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: October 16, 2018
    Assignee: FiberLean Technologies Limited
    Inventors: Patrick A.C. Gane, Michel Schenker, Ramjee Subramanian, Joachim Scholkopf
  • Patent number: 10011951
    Abstract: A method for producing a meta-aramid fiber paper-based material includes steps of: adding functional powders into a first poly(m-phenylene isophthalamide) solution, and obtaining a homogeneous mixed solution; through a dry spinning method, obtaining meta-aramid chopped fibers; through a second poly(m-phenylene isophthalamide) solution, obtaining meta-aramid fibrids; processing the fibrids with a multi-stage classification, selecting the fibrids having an appropriate mesh number and combining in proportion; mixing the chopped fibers and the fibrids, and relieving until uniform; forming a paper through an ultralow concentration inclined wire forming machine with an ultrasonic process and a wet-papermaking process; after squeezing and drying, obtaining a meta-aramid fiber base paper, and then processing with surface coating; and, after multi-stage calendering, rewinding and slitting, obtaining the high-performance meta-aramid fiber paper-based material. The paper-based material has a thickness of 1.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: July 3, 2018
    Assignee: Yantai Metastar Special Paper Co., Ltd.
    Inventors: Zhixin Wang, Jing Sun, Ming Jiang, Yanlei Sun, Junbo Deng
  • Patent number: 9997756
    Abstract: A lead-acid battery separator with ultralow resistivity results from high porosity, controlled pore (10) size distribution, and an ionic surfactant (14) with a long alkyl side chain (18) that is anchored to the polymer matrix (12) of a silica-filled polyethylene separator. The surfactant cannot be easily removed or washed away and thereby imparts sustained wettability to the separator. Controlling the number of, and volume occupied by, the pores (i.e., porosity) and pore size distribution of the separator contributes to a reduction in electrical (ionic) resistivity.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: June 12, 2018
    Assignee: AMTEK RESEARCH INTERNATIONAL LLC
    Inventors: Richard W. Pekala, Chi Thuong-Le La, Cory S. Rogers, Jeffry M. Frenzel, Robert Waterhouse, David P. Walker
  • Patent number: 9972872
    Abstract: A battery system having at least one battery cell, an absorption element, and a temperature-control system having a liquid temperature-control medium configured to cool and/or heat the battery cells in a battery housing, and a motor vehicle having such a battery system.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: May 15, 2018
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Peter Dämon, Georg Eichberger
  • Patent number: 9922750
    Abstract: An electrical insulating paper having 40-80 wt % of aramid fibrid, 10-50 wt % of aramid pulp, and 10-50 wt % of aramid short-cut. The aramid pulp is para-aramid pulp with a length of 0.5-6 mm and has a Schopper Riegler value of 15-85; the aramid fibrid is para-aramid fibrid; and the aramid short-cut is para-aramid short-cut. The paper shows a high dielectric strength and tensile index. A method for manufacturing the paper and an insulated conductor that includes the paper.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: March 20, 2018
    Assignee: TEIJIN ARAMID B.V.
    Inventors: Ben Rolink, Richard Visser, Frank Diedering
  • Patent number: 9903073
    Abstract: Disclosed is colored aramid paper which comprises aramid paper comprising aramid fibrids and short aramid fibers and, formed on at least one surface thereof, a colored layer comprising a colorant and a binder, wherein the colored layer has a surface resistivity of 1×1012?/? or higher and the colored layer comprises portions colored in a single hue, the colored portions having a color difference of 5.0 or less.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: February 27, 2018
    Assignee: DUPONT TEIJIN ADVANCED PAPERS (JAPAN), LTD.
    Inventors: Tatsushi Fujimori, Shinji Naruse, Chihiro Kondo
  • Patent number: 9902885
    Abstract: A non-reactive hot melt adhesive containing a copolymer being substantially composed of a reaction product of lactide (L) and caprolactone (C) in a molar ratio (L/C) of at least 1.5. The adhesive further includes a carbodiimide compound. The presence of a small but effective amount of carbodiimide causes a stabilizing effect on the sealing properties of the adhesive, especially if it is exposed to higher temperatures. A method manufactures the adhesive and a method seals a package with the adhesive.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: February 27, 2018
    Assignee: PURAC BIOCHEM B.V.
    Inventor: Chris François Hubert Schaekens
  • Patent number: 9885154
    Abstract: A multi-faceted family of non-woven webs that can take the form of a filter media, an adaptable forming process and a machine capable of making the range of media are disclosed. The filter medium can have a first surface and a second surface defining a thickness. The medium can comprise a region having a gradient. Such a gradient is formed by having a medium wherein the concentration of a fiber, a property or other component varies from one surface to the next surface. The gradient region of the media can comprise the entire thickness of the medium or can comprise a region that comprises a portion of the media thickness. The media are characterized by the presence of a continuous change of the fiber concentration or property within the region. A non-woven web can also be made comprising a planar fiber structure having a gradient. Such a web can comprise fibers having diameters that can range from 1 to 40 microns and a second fiber having a diameter that can range from 0.5 microns to about 5 microns.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: February 6, 2018
    Assignee: Donaldson Company, Inc.
    Inventor: Hemant Gupta
  • Patent number: 9834889
    Abstract: A toner cleaning sheet includes at least one type of fiber selected from among different thermoplastic fibers formed of thermoplastic resin with a melting point of 265° C. or more and at least one type of fiber selected from among different cellulose fibers, wherein at least part of the aforementioned thermoplastic fiber is fusion-bonded to neighboring thermoplastic fiber filaments. The toner cleaning sheet can be produced by a method that includes at least one type of fiber selected from among different thermoplastic fibers formed of thermoplastic resin with a melting point of 265° C. or more and at least one type of fiber selected from among different cellulose fibers, the method including a bonding step in which at least part of the aforementioned thermoplastic fiber is fusion-bonded to neighboring thermoplastic fiber filaments.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: December 5, 2017
    Assignee: Toray Industries, Inc.
    Inventors: Satoshi Naruko, Takashi Kimura
  • Patent number: 9796790
    Abstract: A liquid composition contains a cellulosic material constituted by a material containing at least one of cellulose and a cellulose derivative, and an ionic liquid having a functional group with reactivity. It is preferred that the ionic liquid has an imidazolium salt structure. It is also preferred that the functional group with reactivity contains a carbon-carbon double bond.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: October 24, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Toshihiro Otake
  • Patent number: 9782749
    Abstract: The aluminum silicate of the invention has: an element ratio of Si and Al, represented by Si/Al, of from 0.3 to 1.0 by molar ratio; a peak at approximately 3 ppm in a 27Al-NMR spectrum; peak A at approximately ?78 ppm and peak B at approximately ?85 ppm in a 29Si-NMR spectrum; and a peak at approximately 2?=26.9° and a peak at approximately 2?=40.3° in a powder X-ray diffraction spectrum. The aluminum silicate has an area ratio of peak B with respect to peak A of from 2.0 to 9.0, or does not include a tubular substance having a length of 50 nm or more as observed in a transmission electron microscope (TEM) photograph of the aluminum silicate taken at a magnification of 100,000.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: October 10, 2017
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Hiroki Mikuni, Kiyoshi Kawai
  • Patent number: 9777129
    Abstract: The present invention is directed to articles of manufacture, including fibers and films, and methods of making thereof. In accordance with the present invention, the article includes a binder impregnated with or encapsulating a filler. The binder is a polyvinyl alcohol (PVOH), cellulose nanofibrils, or a combination of the PVOH and cellulose nanofibrils. The filler is deinking waste solids comprising ash and cellulose fines.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: October 3, 2017
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Daniel W. Sumnicht, Thomas Schulze, Frank-Gunther Niemz
  • Patent number: 9763667
    Abstract: A system for occluding a blood vessel includes an embolization coil having barbed fibers coupled thereto. The coil can be delivered in a straight configuration and then transition into a larger coiled structure. The barbed fibers can overlap within a lumen defined by the larger coiled structure and attached to each other to define a mesh. The barbs of the barbed fiber can limit the fibers from being pulled out of the coil, as well as provide anchoring of the coil to the blood vessel in which the coil is deployed. The barbed fibers can also be used to anchor two coils to each other.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: September 19, 2017
    Assignee: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: Carrie L. Fercik Grant, Kurt J. Tekulve
  • Patent number: 9655490
    Abstract: A disposable cellulosic wiper includes a percentage by weight of pulp-derived papermaking fibers, and from about 10% to about 75% by weight of fibrillated regenerated independent cellulosic microfibers having a number average diameter of less than about 2 microns and a characteristic Canadian Standard Freeness (CSF) value of less than 175 ml.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: May 23, 2017
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Daniel W. Sumnicht, Joseph H. Miller
  • Patent number: 9657441
    Abstract: The present invention relates to a filler comprising clay and cellulose derivative having a degree of substitution of net ionic groups up to about 0.65.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: May 23, 2017
    Assignee: Akzo Nobel N.V.
    Inventors: Erik Sanne, Rune Kjell Andersson, Johan Nyander
  • Patent number: 9534091
    Abstract: Disclosed is a dispersion liquid containing fine cellulose fiber capable of uniform dispersion in an organic solution or resin and capable of use in electronic components. Further disclosed are a laminate body and a cellulose film obtained from fine cellulose fibers with improved water resistance. Further disclosed are a fine cellulose fiber dispersion liquid which forms a film as an undercoat of a base material, in particular of a base material made from naturally occurring materials such as polylactic acid, wherein said film has an improved adhesiveness with respect to said base material; and a laminate body using the same. The fine cellulose fiber dispersion liquid contains at least fine cellulose fibers, and either an ammonia or an organic alkali.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: January 3, 2017
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Akiko Saiki, Yumiko Oomori
  • Patent number: 9403936
    Abstract: A method for preparing a pitch for carbon fibers and a pitch for carbon fibers prepared by the same are disclosed. The method includes introducing a peroxide compound and ozone into a petroleum-process residual oil, followed by heat treatment for reaction. By the method, the pitch for carbon fibers, which exhibits excellent oxidative stabilization and oxidative incompatibility while having a high softening point and high strength, can be obtained at high yield at a relatively low temperature.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: August 2, 2016
    Assignee: GS CALTEX CORPORATION
    Inventors: Sang-Wook Park, Young-Se Oh, Ji-Su Choi, Ki-Ung Kim, Sang-Hee Park
  • Patent number: 9370292
    Abstract: An absorbent paper sheet for tissue or towel includes an amount by weight of pulp-derived papermaking fibers, and an amount by weight of fibrillated regenerated cellulosic microfibers prepared from a cellulosic dope of dissolved cellulose comprising a solvent selected from tertiary amine N-oxides, cellulose dissolving imidazolium salts, cellulose dissolving pyridinium salts, cellulose dissolving pyridazinium salts, cellulose dissolving pyrimidinium salts, cellulose dissolving pyrazinium salts, cellulose dissolving pyrazolium salts, cellulose dissolving oxazolium salts, cellulose dissolving 1,2,3-triazolium salts, cellulose dissolving 1,2,4-triazolium salts, cellulose dissolving thiazolium salts, cellulose dissolving piperidinium salts, cellulose dissolving pyrrolidinium salts, cellulose dissolving quinolinium salts, and cellulose dissolving isoquinolinium salts.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: June 21, 2016
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Daniel W. Sumnicht, Joseph H. Miller
  • Patent number: 9365981
    Abstract: Methods of producing cellulosic or lignocellulosic materials for use in papermaking include treating a cellulosic or lignocellulosic dry feedstock having a first average molecular weight with ionizing radiation, and controlling the dose of ionizing radiation such that the average molecular weight of the feedstock is reduced to a predetermined level. A method of producing an irradiated paper product includes treating a paper product including a first carbohydrate-containing material having a first molecular weight with ionizing radiation, and controlling the dose of ionizing radiation so as to provide an irradiated paper product with a second carbohydrate-containing material having a second molecular weight higher than the first molecular weight. Pulp and paper products are produced.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: June 14, 2016
    Assignee: XYLECO, INC.
    Inventor: Marshall Medoff
  • Patent number: 9352607
    Abstract: Systems and methods provide a user with the ability to mark a surface, easily remove the marking, and remark the same surface. The systems and methods include a marking implement and a mark-receiving surface. When the mark-receiving surface is marked, the resulting mark dries relatively quickly, tends not to smudge, and can be wiped from the surface easily, efficiently and effectively without lasting effect to the mark-receiving surface, which then is available to be marked again.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: May 31, 2016
    Inventor: Abraham R. Albenda
  • Patent number: 9282872
    Abstract: A disposable cellulosic wiper includes a percentage by weight of pulp-derived papermaking fibers, and a percentage by weight of regenerated independent cellulosic microfibers having a number average diameter of less than about 2 microns and a characteristic Canadian Standard Freeness (CSF) value of less than 175 ml. The microfibers are selected and present in amounts such that the wiper exhibits a Relative Bendtsen Smoothness at 1 kg of pressure of at least 1.5 as compared with a like wiper prepared without microfibers.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: March 15, 2016
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Daniel W. Sumnicht, Joseph H. Miller
  • Patent number: 9282871
    Abstract: A disposable cellulosic wiper includes a percentage by weight of pulp-derived papermaking fibers, and a percentage by weight of regenerated independent cellulosic microfibers having a number average diameter of less than about 2 microns and a characteristic Canadian Standard Freeness (CSF) value of less than 175 ml. The microfibers are selected and present in amounts such that the wiper exhibits a relative wicking ratio of at least 1.5.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: March 15, 2016
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Daniel W. Sumnicht, Joseph H. Miller
  • Patent number: 9271880
    Abstract: A pant type absorbent article such as a pant diaper, a sanitary pant or incontinence pant, said article having a core region (3) comprising an absorbent core (2) and a chassis region (4) surrounding the core region. The chassis comprises front, back and waist regions (5, 6 and 7). The article in at least a part of the chassis region (4) comprises an outer coversheet (10) in the form of an elastic web material (11) constituting the sole component of the chassis (4) in at least 20% of the total surface area of the article (1), said elastic laminate having an opacity of at least 40% and a basis weight of no more than 100 g/m2.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: March 1, 2016
    Assignee: SCA HYGIENE PRODUCTS AB
    Inventors: Tomas Karlson, Anders Gustafsson, Urban Widlund, Jan Wastlund-Karlsson, Margareta Wennerback
  • Patent number: 9271622
    Abstract: A disposable cellulosic wiper includes a percentage by weight of pulp-derived papermaking fibers, and a percentage by weight of regenerated independent cellulosic microfibers having a number average diameter of less than about 2 microns and a characteristic Canadian Standard Freeness (CSF) value of less than 175 ml. The microfibers are selected and present in amounts such that the wiper exhibits a relative water residue removal efficiency of at least 150% as compared with a like sheet without regenerated independent cellulosic microfibers.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: March 1, 2016
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Daniel W. Sumnicht, Joseph H. Miller
  • Patent number: 9271623
    Abstract: A disposable cellulosic wiper includes a percentage by weight of pulp-derived papermaking fibers having a characteristic scattering coefficient of less than 50 m2/kg, and a percentage by weight of fibrillated regenerated independent cellulosic microfibers having a number average diameter of less than about 2 microns and a characteristic Canadian Standard Freeness (CSF) value of less than 175 ml. The microfibers are selected and present in amounts such that the wiper exhibits a scattering coefficient of greater than 50 m2/kg.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: March 1, 2016
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Daniel W. Sumnicht, Joseph H. Miller
  • Patent number: 9271624
    Abstract: A disposable cellulosic wiper includes a percentage by weight of pulp-derived papermaking fibers, and a percentage by weight of regenerated independent cellulosic microfibers having a number average diameter of less than about 2 microns and a characteristic Canadian Standard Freeness (CSF) value of less than 175 ml. The microfibers are selected and present in amounts such that the wiper exhibits a Laplace pore volume fraction at pore sizes less than 15 microns of at least 1.5 times that of a like wiper prepared without regenerated independent cellulosic microfibers.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: March 1, 2016
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Daniel W. Sumnicht, Joseph H. Miller
  • Patent number: 9228624
    Abstract: The invention relates to a friction element (1), comprising a main body (2) having a friction layer (5), characterized in that the friction layer (5) has an arithmetic average roughness value Ra according to DIN EN ISO 4287 between 3 ?m and 10 ?m, a wave depth Wt according to DIN EN ISO 4287 of at least 30 ?m and a mean groove width Rsm according to DIN EN ISO 4287 of at least 150 ?m. Pores of the friction layer have a pore size which is selected from a range with a lower limit of 25 ?m and an upper limit of 900 ?m.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: January 5, 2016
    Assignee: Miba Frictec GmbH
    Inventors: Volker Foege, Manuel Eder
  • Patent number: 9200453
    Abstract: A roof ridge vent mat for installation overlying an open roof ridge to provide ventilation to a space beneath a roof is provided. The ridge vent mat is a continuous elongate material of randomly convoluted polymeric filaments having an openwork upper face, an openwork lower face, a plurality of hollow recesses extending into the mat and opening into the lower face, and opposite longitudinally extending openwork side edges. The openwork upper face is formed of randomly convoluted filaments formed to provide a relatively flat surface of sufficient density to catch heads of fasteners. The plurality of hollow recesses is defined by a plurality of upstanding openwork walls of convoluted filaments that extend from the upper face to the lower face of the mat. The upstanding openwork walls are arranged in a latticework structure such that no unobstructed passageway extent through the mat through which wind-blown rain and snow can freely pass into the side edges of the mat and laterally pass through the mat.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: December 1, 2015
    Assignees: Benjamin Obdyke Incorporated, Colbond, Inc.
    Inventors: Ted Kerwood-Winslow, George Caruso, Michael S. Coulton, Lori Curtiss Hascher, James Emory Mathis, II, Jeffrey Scott Denton
  • Patent number: 9187866
    Abstract: A compression-molded tray of fiber material, said tray being formed of fiber material in a compression method, from a suspension of mechanical pulp of cellulose. The formed tray has been formed by press-drying using heat to a dry content of 80-95%, preferably 90-95%, and the fiber material of the formed tray has a density in the order of 400-650 kg/m3. The inside of the tray is provided with a protective barrier.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: November 17, 2015
    Assignee: SIG Technology AB
    Inventors: Per Sunblad, Roger Soderlund, Bengt Nordin, Lars Blecko
  • Patent number: 9175440
    Abstract: A process for producing a microfiber product stream, the process comprises: (A) contacting cut multicomponent fibers having a length of less than 25 millimeters with a treated aqueous stream in a fiber slurry zone to produce a cut multicomponent fiber slurry; (B) contacting the cut multicomponent fiber slurry with a heated aqueous stream in a mix zone to produce a heated multicomponent fiber slurry; (C) routing the heated multicomponent fiber slurry to a fiber opening zone to remove a portion of the water dispersible sulfopolyester to produce an opened microfiber slurry; wherein the opening zone comprises a pipe reactor; and (D) routing the opened microfiber slurry to a primary solid liquid separation zone to produce the microfiber product stream and a first mother liquor stream.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: November 3, 2015
    Assignee: Eastman Chemical Company
    Inventors: Kenny Randolph Parker, Daniel William Klosiewicz, Ramesh Chand Munjal, David J. Rogers, Dustin A. Tremaine
  • Patent number: 9127408
    Abstract: It has now been discovered that the sheet bulk of a tissue web may be increased, with little or no degradation in tensile strength, by forming the web with at least a portion of cellulosic fiber that has been reacted with a water soluble cellulose reactive agent such as a cyanuric halide or a vinyl sulfone and then reacting the fiber with monochloroacetic acid, or salts thereof, in the presence of a caustic.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: September 8, 2015
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jian Qin, Dave Allen Soerens, Alison Elizabeth Vickman
  • Patent number: 9073290
    Abstract: A multilayer structure particularly useful in a transformer which contains (a) a first layer of aramid and cellulose wherein (i) the aramid is present as an meta-aramid in an amount of 0 to 50 weight percent floc and 50 to 100 weight percent fibrid, (ii) the cellulose is present in the form of cellulosic pulp fiber and (iii) the aramid is present in an amount of 16 to 75 weight percent and the cellulose is present in an amount of 25 to 84 weight percent, said percentages on the basis of the aramid and cellulose and (b) a second layer containing cellulosic pulp fiber with the proviso that the second layer does not contain aramid.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: July 7, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Mikhail R. Levit, Byoung Sam Kang