Mineral Patents (Class 162/145)
  • Patent number: 10696594
    Abstract: Acoustical tile including a dried base mat of: about 70 to about 90 wt % mineral wool; about 5 to about 15 wt % perlite; 0 to about 10 wt % starch; about 3 to about 10 wt % latex; 0 to about 5 wt % gypsum; and less than 5 wt % water. The dried base mat without including glass fibers and without a laminate layer or coating and without perforations has a NRC of about 0.70 or greater, a density of about 10 pcf to about 12 pcf, and a thickness of about ½ to about 1 inch. The acoustical tile can further include a back coating at a surface weight of about 5 grams per square foot (gsf) to about 40 gsf to the dried base mat, wherein the acoustical tile has the CAC rating of about 30 to about 35.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: June 30, 2020
    Assignee: USG INTERIORS, LLC
    Inventors: Wei Xu, Thomas M. Mayers, Scott C. Bakken
  • Patent number: 10457013
    Abstract: This invention is directed to a non-rigid composite sheet comprising in order (i) a first component having an areal weight of from 88 to 678 gsm comprising a first fabric of filamentary yarns having a tenacity of at least 11 g/dtex and a UV and weather impervious first polymeric layer. (ii) a second component having an areal weight of from 120 to 430 gsm comprising a flame resistant paper and (iii) a third component having an areal weight of from 88 to 678 gsm comprising a second fabric of filamentary yarns having a tenacity of at least 11 g/dtex and an impact and scratch resistant second polymeric layer, the second fabric of the third component being adjacent to the paper of the second component.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: October 29, 2019
    Assignee: DuPont Safety & Construction, Inc.
    Inventors: Dariusz Wlodzimierz Kawka, Tomas L. Perez
  • Patent number: 10230089
    Abstract: The present invention provides an electrolyte holder for a lithium secondary battery capable of holding an electrolytic solution inside electrodes or at an interface between the separator and each of the electrodes, preventing electrolyte shortage inside the electrodes, and restraining dendrite from precipitating and growing and also provide the lithium secondary battery, using the electrolyte holder, which is capable of achieving a cycle life to such an extent that the lithium secondary battery can be used for industrial application. An electrolyte holder (3) for use in the lithium secondary battery consists of a multi-layer structure having at least two hydrophilic fibrous layers (A, B) having different porosities. The electrolyte holder (3) is composed of an electrode group formed by winding a cathode (2) and an anode (1) or laminating the cathode (2) and the anode (1) one upon another with an electrolyte holder (3) serving as a separator interposed between the cathode (2) and the anode (1).
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: March 12, 2019
    Assignees: SEI CORPORATION, NIPPON KODOSHI CORPORATION
    Inventors: Takehiko Sawai, Shinji Saito, Kazunori Urao, Jyunichi Ushimoto, Masahiko Ueta, Norihiro Wada
  • Patent number: 10105471
    Abstract: A wound treatment appliance is provided for treating all or a portion of a wound. In some embodiments, the appliance comprises a cover or a flexible overlay that covers all or a portion of the wound for purposes of applying a reduced pressure to the covered portion of the wound. In other embodiments, the wound treatment appliance also includes a vacuum system to supply reduced pressure to the site of the wound in the volume under the cover or in the area under the flexible overlay. Methods are provided for using various embodiments of the invention.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: October 23, 2018
    Assignee: Smith & Nephew, Inc.
    Inventor: Richard Scott Weston
  • Patent number: 10045677
    Abstract: A dispersible, nonwoven multistrata wipe material is provided that is stable in a wetting liquid and flushable in use. More particularly, multilayered structures including, but not limited to, two, three, or four layers are provided to form the dispersible nonwoven wipe material. The layers contain combinations of cellulosic and noncellulosic fibers, and optionally a binder or additive.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: August 14, 2018
    Assignee: Georgia-Pacific Nonwovens LLC
    Inventors: John P. Baker, Maria Curran, Jeffrey S. Hurley, Ronald T. Moose, Jacek K. Dutkiewicz, Manuel V. Murcia, Thomas Hess
  • Patent number: 9994703
    Abstract: The bio composite (ABS/CF) material combined with the percentage of cellulose polymer compounds and chemical plant was built with nano-sized minerals. Cellulose compounds by chemical solution on specific treatments have been performed. Bio-composite material made of cellulose bio polymer composites, nano-sized minerals and compounds with a coupling agent was made.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: June 12, 2018
    Inventor: Mohammad Ali Bay
  • Patent number: 9932264
    Abstract: Inorganic fibers including the following composition, SiO2, MgO and CaO being main components: SiO2: 73.6 wt % to 85.9 wt %, MgO: 9.0 wt % to 21.3 wt %, CaO: 5.1 wt % to 12.4 wt %, Al2O3: 0 wt % or more and less than 2.3 wt %, and Fe2O3: 0 wt % to 0.50 wt %.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: April 3, 2018
    Assignee: NICHIAS CORPORATION
    Inventors: Koji Iwata, Hideki Kitahara, Ken Yonaiyama, Kazuki Soeda, Tatsuro Miki
  • Patent number: 9683142
    Abstract: A sealant composition comprising: (a) from 10 to 40 wt % of an acrylic polymer or copolymer; (b) from 20 to 65 wt % of a powdered filler; and (c) from 0.1 to 20 wt % of a hydrocarbon polymer.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: June 20, 2017
    Assignee: POLYSEAM LIMITED
    Inventor: Wolodymyr Hluchan
  • Patent number: 9656195
    Abstract: A coalescence media for separation of water-hydrocarbon emulsions, the coalescence media comprising an emulsion-contacting sheet formed as a single dry layer from a wet-laid process using a homogenously distributed, wet-laid furnish of (a) a mixture of fibrous components of (a1) at least one type of a first group of cellulose and/or cellulose-based fibers, and (a2) at least one type of a second group of fibers selected from the group consisting of fibrillated fibers and glass microfibers, and (b) at least one non-fibrous component selected from the group consisting of (b1) a dry strength additive, and (b2) a wet strength additive. The fibrous components of the coalescence media constitute at least about 70% of the coalescence media, and includes a pore structure sufficient to coalesce water droplets having a droplet size of <3.5 ?m in biodiesel blends or in surfactant stabilized water-hydrocarbon emulsions.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: May 23, 2017
    Assignee: AHLSTROM CORPORATION
    Inventors: Christine Stanfel, Frank Cousart
  • Patent number: 9637066
    Abstract: Provided is a high-quality and high-functionality glass chopped strand mat which is applicable to recent automotive molded ceiling materials which have excellent design and reduced weights. The glass chopped strand mat is a glass chopped strand mat (M) produced by forming glass chopped strands (S) into a sheet, in which the ratio of a tensile strength in a width direction to a tensile strength in a longitudinal direction (the width direction/the longitudinal direction) of the glass chopped strand mat (M) is at least 0.73 and less than 1.00, and the tensile strength in the width direction is not less than 80 N as measured in a tensile rupture test conducted according to the Japanese Industrial Standards (Section 7.25 of JIS R3420 (2006)), where the width of a test specimen is 150 mm.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: May 2, 2017
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Jiro Abe, Satoshi Nishie, Kiyomasa Sugimoto
  • Patent number: 9586745
    Abstract: A liner apparatus and method of extending the shelf like of produce items using said liner apparatus, in which the liner apparatus is comprised of a liner body containing a plurality of alpaca felting fibers, a substantially planar surface, and in certain embodiments a flexible covering provided over the liner body, whereby when the liner apparatus is positioned in a container suited for holding one or more produce items excess moisture on the surface of produce items placed in the container is transferred to the liner body.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: March 7, 2017
    Inventor: JoAnne L. Givler
  • Patent number: 9556539
    Abstract: To provide an add-in material to be added to a porous molded body base, the add-in material being capable of developing a pore of appropriate size efficiently without degrading the formability and productivity of a porous molded body, particularly a porous fired body when producing the porous molded body. A shrinkable fiber composed of a thermoplastic resin and to be dispersed in a base of a porous molded body, particularly a porous fired body, wherein the shrinkable fiber has a fiber diameter of 10 to 40 ?m, a fiber length of 1 to 20 mm, and a dry-heat shrinkage percentage of at least 8% when subjected to heat treatment at 80° C. for 5 minutes.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: January 31, 2017
    Assignees: ES FiberVisions Co., Ltd., ES FiberVisions Hong Kong Limited, ES FiberVisions LP, ES FiberVisions ApS
    Inventors: Minoru Miyauchi, Yasushi Matsuda, Yuji Koyama
  • Patent number: 9474989
    Abstract: An immiscible lipophilic or hydrophilic liquid phase separated respectively from a continuous hydrophilic phase or a lipophilic phase liquid. Fibers having hydrophilic and hydrophobic properties are formed into a filter. The separation mechanism involves capture of small droplets of the immiscible phase, coalescence of the small droplets into larger droplets as the immiscible liquid flows through the fiber filter, and release of the large immiscible droplets from the filter. Regarding separation of a hydrophilic immiscible fluid such as water in a lipophilic continuous fluid such as oil, the hydrophobic fibers cause small water droplets to migrate towards the hydrophilic fibers whereby large droplets form on hydrophilic surface. The large droplets stay on hydrophilic fiber surface for extended periods of time and continue to coalescence until they are so large that they can no longer be maintained by the hydrophilic fibers and are released and drained off of the filter.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: October 25, 2016
    Assignee: The University of Akron
    Inventors: George Chase, Prashant Kulkarni
  • Patent number: 9443665
    Abstract: Nanobiomimetic supercapacitors comprise an “Electron Well” and an “Electron-Dam” Membrane Electrode Assembling (MEA); the “Electron-Well” MEA compromises an electrode comprising a substrate of glassy carbon; a self-assembling membrane comprises a polymer matrix; wherein the polymer matrix is comprised of an electrically conductive copolymer; wherein the copolymer is further comprised of one or more first ?-cyclodextrin molecules having at least one or more free acetyl groups; one or more polyethylene glycol molecules; one or more poly(4-vinylpyridine) molecules; and one or more second ?-cyclodextrin molecules; the self-assembling membrane having a surface structure comprising one or more nanopores and pillars; the nanopores and pillars are vertically oriented on the substrate to form nanopore and pillar array; the “Electron-Dam” MEA compromises the nanopore/pillar layer sealed with an embedded hydrophobic aromatic substance having a flat lid structure; Wherein the MEA can be as either said positive or negativ
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: September 13, 2016
    Inventor: Ellen T. Chen
  • Patent number: 9388008
    Abstract: The present invention relates to a process for producing a base material for obtaining therefrom ring-shaped disks for use in a disk roll including a rotating shaft and the ring-shaped disks fitted thereon by insertion, whereby the peripheral surface of the disks serves as a conveying surface, the process including molding a raw slurry material into a platy shape and drying the plate, the raw slurry material containing inorganic fibers which have a wet volume of 300 mL/5 g or larger and which are amorphous or have a degree of crystallinity of 50% or lower.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: July 12, 2016
    Assignee: Nichias Corporation
    Inventors: Osamu Horiuchi, Kazuhisa Watanabe, Masaaki Nakayama
  • Patent number: 8940134
    Abstract: Inorganic fiber paper including bio-soluble inorganic fibers which have been subjected to a heat treatment and a binder. A method for producing inorganic fiber paper including: the first step of subjecting amorphous bio-soluble inorganic fibers to a heat treatment; and the second step of making paper comprising the heat-treated bio-soluble inorganic fibers and a binder. Equipment for heating and/or thermal insulation which includes the inorganic fiber paper.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: January 27, 2015
    Assignee: Nichias Corporation
    Inventors: Tetsuya Ishihara, Tetsuya Mihara, Ken Yonaiyama, Tomohiko Kishiki
  • Patent number: 8894811
    Abstract: A method of forming a dilute water slurry for water felting a basemat for an acoustical ceiling tile comprising delivering a bale of compressed mineral wool with a density of at least 8 lbs. per cubic foot at an unbaling station, releasing a binding holding the bale in compression, mechanically separating the fibers of a mineral wool bale with mechanical instrumentalities arranged to disperse the fibers to a generally uniform density of less than 2 lbs. per cubic foot prior to passage of the fibers through the tank inlet, and causing the separated mineral fibers to pass into the mixing tank for contact with water suspended binder.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: November 25, 2014
    Assignee: USG Interiors, LLC
    Inventor: Martin W. Brown
  • Publication number: 20140311695
    Abstract: A process of making a paper or nonwoven article is provide. The process comprising: a) providing a fiber furnish comprising a plurality of fibers and a plurality of binder microfibers, wherein the binder microfibers comprise a water non-dispersible, synthetic polymer; wherein the binder microfibers have a length of less than 25 millimeters and a fineness of less than 0.5 d/f; and wherein the binder microfibers have a melting temperature that is less than the melting temperature of the fibers; b) routing the fiber furnish to a wet-laid nonwoven process to produce at least one wet-laid nonwoven web layer; c) removing water from the wet-laid nonwoven web layer; and d) thermally bonding the wet-laid nonwoven web layer after step (c); wherein the thermal bonding is conducted at a temperature such that the surfaces of the binder microfibers at least partially melt without causing the fibers to melt thereby bonding the binder microfibers to the fibers to produce the paper or nonwoven article.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 23, 2014
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Mark Dwight Clark, Keh Dema, Sungkyun Sohn, Ernest Phillip Smith, Chris Delbert Anderson, Charles Stuart Everett
  • Publication number: 20140311694
    Abstract: A paper or nonwoven article is provided comprising a nonwoven web layer, wherein the nonwoven web layer comprises a plurality of fibers and a plurality of binder microfibers, wherein the binder microfibers comprise a water non-dispersible, synthetic polymer; wherein the binder microfibers have a length of less than 25 millimeters and a fineness of less than 0.5 d/f; and wherein the binder microfibers have a melting temperature that is less than the melting temperature of the fibers.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 23, 2014
    Applicant: Eastman Chemical Company
    Inventors: Mark Dwight Clark, Keh Dema, Sungkyun Sohn, Ernest Phillip Smith, Chris Delbert Anderson, Charles Stuart Everett
  • Patent number: 8758563
    Abstract: A method of making a nonwoven fibrous mat that retains good strength and recovery after scoring and folding, properties making the mat useful in making collapsible ceiling tile. The mat comprises a majority of glass fibers and a minority of polymer fibers, the fibers being bound together with up to 35 wt. percent of a polyacrylic acid and polyol polymer binder based on the dry weight of the mat. The mat can be cured to “B stage”, thermoformed into the desired shape and then heated further to complete the cure of the binder.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: June 24, 2014
    Assignee: Johns Manville
    Inventors: Alan Michael Jaffee, Richard Emil Kajander
  • Patent number: 8734613
    Abstract: A wet laid basemat for an acoustical ceiling tile comprising on a dry weight basis, 50% or more mineral wool fiber, including shot, less than 9% binder, and between 5 and 20% chopped strand glass fiber, and, optionally, minor amounts of other constituents, whereby the chopped strand glass fibers serve to promote and/or maintain voids in the mat such that the dry basemat has a density of between about 7½ to about 10½ lbs. per cubic foot and an NRC substantially greater than 0.55.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: May 27, 2014
    Assignee: USG Interiors, LLC
    Inventors: William A. Frank, Terry Rosenstiel
  • Patent number: 8658272
    Abstract: A basecoat including a pigment blend, the pigment blend including at least a calcined clay and a hyper-platy clay, the hyper-platy clay having a shape factor of at least about 40:1.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: February 25, 2014
    Assignee: MeadWestvaco Corporation
    Inventors: Steven G. Bushhouse, Terry L. Clark, Gary P. Fugitt, James P. E. Jones, Anthony V. Lyons, Roger W. Wygant
  • Patent number: 8641868
    Abstract: Inorganic fiber paper includes first biosoluble inorganic fibers having an average fiber diameter of 3 to 7 ?m, second biosoluble inorganic fibers having an average fiber diameter of 2 to 3 ?m, and a binder, the average fiber diameter of the second biosoluble inorganic fibers being smaller than that of the first biosoluble inorganic fibers.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: February 4, 2014
    Assignee: Nichias Corporation
    Inventors: Tetsuya Mihara, Ken Yonaiyama, Tetsuya Ishihara, Tomohiko Kishiki
  • Publication number: 20130340962
    Abstract: Embodiments for methods and apparatuses for forming a nonwoven web are described herein. In one embodiment, an apparatus includes one or more sources configured to dispense a first fluid flow stream comprising a fiber and a second fluid flow stream also comprising a fiber. The apparatus also includes a mixing partition downstream from the one or more sources, where the mixing partition is positioned between the first and second flow streams from the one or more sources. The mixing partition defines one or more openings that permit fluid communication between the two flow streams. The apparatus also includes a receiving region situated downstream from the one or more sources and designed to receive at least a combined flow stream and form a nonwoven web by collecting fiber from the combined flow stream.
    Type: Application
    Filed: August 27, 2013
    Publication date: December 26, 2013
    Applicant: Donaldson Company, Inc.
    Inventors: Hemant Gupta, Brad E. Kahlbaugh
  • Publication number: 20130292076
    Abstract: A composite sheet material in one embodiment includes a porous core layer. The porous core layer includes a thermoplastic polymer, about 20 weight percent to about 80 weight percent of reinforcing fibers based on a total weight of the porous core layer, and an effective amount of a flame retardant agent.
    Type: Application
    Filed: March 14, 2013
    Publication date: November 7, 2013
    Inventors: Venkat Krishna Raghavendran, Thomas Arnold Ebeling
  • Patent number: 8568563
    Abstract: Methods of making the burnthrough resistant non-woven mat include forming the mat from glass fibers and at least two binders, a first binder having a vinyl component and a second binder having a strengthening component. The vinyl component may be, for example, ethylene vinyl chloride, and the strengthening component may be, for example, melamine formaldehyde. In one method, the vinyl component is added to the glass fibers by a beater addition process and the strengthening component is sprayed onto the glass fibers. The burnthrough resistant non-woven mat may be used in conjunction with an insulation blanket, and may be especially suited to use in insulating aircraft.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: October 29, 2013
    Assignee: Jonhs Manville
    Inventor: Glenda Beth Bennett
  • 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: 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
  • Publication number: 20120312488
    Abstract: Embodiments for methods and apparatuses for forming a nonwoven web are described herein. In one embodiment, an apparatus includes one or more sources configured to dispense a first fluid flow stream comprising a fiber and a second fluid flow stream also comprising a fiber. The apparatus also includes a mixing partition downstream from the one or more sources, where the mixing partition is positioned between the first and second flow streams from the one or more sources. The mixing partition defines one or more openings that permit fluid communication between the two flow streams. The apparatus also includes a receiving region situated downstream from the one or more sources and designed to receive at least a combined flow stream and form a nonwoven web by collecting fiber from the combined flow stream.
    Type: Application
    Filed: August 20, 2012
    Publication date: December 13, 2012
    Applicant: DONALDSON COMPANY, INC.
    Inventors: Hemant Gupta, Brad E. Kahlbaugh
  • Patent number: 8309231
    Abstract: The present invention relates to an acoustical tile that includes a core and a surface treatment. The surface treatment comprises a formaldehyde-free latex binder, the binder including at least one formaldehyde-free biocide. The present invention also provides a process of manufacturing an acoustical tile.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: November 13, 2012
    Assignee: USG Interiors, LLC
    Inventors: Adelaida Carbo, Gary Hacker, Charles Byers, Scott Daryl Cimaglio
  • Publication number: 20120272686
    Abstract: A disk roll base material includes 25 to 50 wt % of ceramic wool, 5 to 30 wt % of kibushi clay, 2 to 20 wt % of bentonite, and 25 to 45 wt % of a filler selected from alumina, wollastonite and calcined kaolin clay.
    Type: Application
    Filed: May 1, 2012
    Publication date: November 1, 2012
    Applicant: NICHIAS CORPORATION
    Inventors: Osamu Horiuchi, Kazuhisa Watanabe, Masaaki Nakayama
  • Publication number: 20120248034
    Abstract: Filtration media for filtering a liquid includes a plurality of fibers having a coating thereon of a fluorine containing compound. Also disclosed are processes for forming fibrous non-woven liquid filtration media having the coating of the fluorine containing compound. Suitable fluorine containing compounds generally include fluoropolymers, fluorinated hydrocarbons, fluoroacrylate polymers, and the like. The liquid filtration media having the coating of the fluorine containing compound provides markedly improved dirt holding capacity and efficiency properties, among others.
    Type: Application
    Filed: March 22, 2012
    Publication date: October 4, 2012
    Applicant: LYDALL, INC.
    Inventors: PAUL N. SEGIT, ROBERT A. CHENEY, JR., DAVID R. LAMBERT
  • Publication number: 20120244337
    Abstract: A fiber is manufactured from thermosetting binder compounds by fiberizing an aqueous dispersion of thermoset compounds having a high solids content of at least 35%, 40% or 50% solids and/or a high viscosity of at least about 30 cps, 50 cps or 100 cps at room temperature. The fibers may be rotary fiberized or otherwise extruded. They may be co-fiberized with base fibers, including other polymeric fibers and/or inorganic fibers like glass fibers, or they may be intermingled post fabrication by other means, such as fluid dispersion processes or carding. The thermoset fibers are useful for binding together base fibers in fibrous products like glass fiber insulation.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 27, 2012
    Applicant: OWENS CORNING INTELLECTUAL CAPITAL, LLC
    Inventor: Patrick Michael Gavin
  • Patent number: 8187423
    Abstract: In one aspect, the invention is directed to an efficient and economical process for dispersing fiber in water and clay. In another aspect, the process for dispersing fiber in water and clay is used in methods of making fiber reinforced composite products. In another aspect, the dispersed fiber/clay material is formulated to make products which include, but which are not limited to, fiber reinforced thermoplastic composites, paperboard products, kitty litter, and/or lightweight building materials comprising fiber.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: May 29, 2012
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Gregory M. Glenn, Charles N. Ludvik
  • Patent number: 8187418
    Abstract: A multilayer fibrous nonwoven mat containing at least one transition zone comprised of a mixture of the slurries used to form the layers on each side of the transition zone, the transition zone having a thickness of at least 1 percent of the thickness of the mat. At least one of the layers contains glass fibers. The multilayer mats are particularly useful as facers on gypsum wall board, insulating foam, a wood material and a broad range of other materials. The multilayer mats are made by a method that involves using a lamella in the forming box on a wet laid mat machine, between slurries, the lamella ending a significant distance prior to a moving forming wire. The transition zone or zones provide superior interlaminar shear strength and other properties compared to multilayer fibrous mats produced on wet laid machines having two or more separate forming boxes.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: May 29, 2012
    Assignee: Johns Manville
    Inventors: Richard Emil Kajander, Alan Michael Jaffee, Paul Russell Swartz, Richard Jon Kindle
  • Publication number: 20120118521
    Abstract: A process for producing a veil comprising glass fibers and cellulose fibers which includes dispersing cellulose fibers and chopped glass fibers into a white water, forming a bed in a forming device by passage of the dispersion over a forming fabric through which the white water is drained off, the fibers being retained on the fabric and the dispersion including, during passage, a cationic white water, and performing a heat treatment step an oven device.
    Type: Application
    Filed: January 23, 2012
    Publication date: May 17, 2012
    Applicant: SAINT-GOBAIN TECHNICAL FABRICS EUROPE
    Inventors: Michel Droux, Carl Desaint Jean
  • 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
  • Patent number: 8157957
    Abstract: A process for producing a veil comprising glass fibers and cellulose fibers which includes dispersing cellulose fibers and chopped glass fibers into a white water, forming a bed in a forming device by passage of the dispersion over a forming fabric through which the white water is drained off, the fibers being retained on the fabric and the dispersion including, during passage, a cationic white water, and performing a heat treatment step an oven device.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: April 17, 2012
    Assignee: Saint-Gobain Technical Fabrics Europe
    Inventors: Michel Droux, Carl DeSaint Jean
  • Patent number: 7998312
    Abstract: Moisture absorptive and desorptive paper having both high moisture absorptive and desorptive properties and high dimensional stability is provided. Moisture absorptive and desorptive paper comprising organic fine particles having cross-linking structure and 1 to 10 mmol/g of acidic group where not less than 1 mmol/g of metal ion of at least one kind of metal selected from the group consisting of Li, Na, K, Mg and Ca is bonded to said acidic group, inorganic fiber and pulp-shaped fiber. By the basic constitution as above, on one hand the moisture absorptive and desorptive properties inherent to the organic fine particles are efficiently utilized by suppressing the use of binder as much as possible, and on the other hand deformation or thermal shrinking of the paper due to swelling in water at the time of absorption etc. is able to be suppressed.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: August 16, 2011
    Assignee: Japan Exlan Company Limited
    Inventors: Ryosuke Nishida, Hideo Naka
  • Publication number: 20110180225
    Abstract: A panel includes about 0.1% to about 95% by weight of a renewable component. The panel has at least one of a CAC value of at least about 25, an NRC value of at least about 0.25 and an STC of at least about 25. A method for manufacturing such panels is also provided.
    Type: Application
    Filed: April 5, 2011
    Publication date: July 28, 2011
    Inventors: Bangii Cao, Te Hua Lau, Curt Malone, W. David Song, Martin W. Brown
  • Patent number: 7938933
    Abstract: Disclosed is a method for making fiber paper. In this method, mineral fibers and PVA resin are blended in water, thus forming first solution. Polymer fibers and PVA resin are blended in water, thus forming second solution. The first solution is mixed with the second solution. A wet paper-making machine is used to make mineral fiber paper from the mixture.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: May 10, 2011
    Assignee: Atomic Energy Council—Institute of Nuclear Energy Research
    Inventors: To-Mai Wang, Sheng-Fu Yang, Yung-Wou Lee, Kin-Seng Sun, Wen-Cheng Lee, Ching-Liang Chen, Chin-Ching Tzeng
  • Patent number: 7928023
    Abstract: A composite sheet material, useful as a component of roofing shingles, and a process of making same, which includes a glass fiber web bound with a thermosetting resin which includes a fatty acid amide having the structural formula RCOONH2, where R is a C8-C25 alkyl.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: April 19, 2011
    Assignee: Building Materials Investment Corporation
    Inventors: V. Robert Canfield, Robson F. Storey, Betty C. Roberts
  • Patent number: 7897012
    Abstract: This invention is to provide a sheet product that is excellent in moisture absorption amount, moisture absorption speed and moisture release speed and is capable of keeping a powder from falling off and that can have a large content of a moisture adsorbent, and the sheet product of this invention contains (a) a moisture adsorbent formed of a tubular or fibrous metal oxide, (b) a cellulosic fibrillated fiber, and (c) an organic fiber having a fineness of 0.01 dtex to 0.45 dtex and is characteristically produced by a paper-making method.
    Type: Grant
    Filed: July 4, 2007
    Date of Patent: March 1, 2011
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Kazuchiyo Takaoka, Masanobu Matsuoka, Masatoshi Kito
  • Publication number: 20110017414
    Abstract: Disclosed is a method for making fiber paper. In this method, mineral fibers and PVA resin are blended in water, thus forming first solution. Polymer fibers and PVA resin are blended in water, thus forming second solution. The first solution is mixed with the second solution. A wet paper-making machine is used to make mineral fiber paper from the mixture.
    Type: Application
    Filed: April 23, 2008
    Publication date: January 27, 2011
    Applicant: ATOMIC ENERGY COUNCIL- INSTITUTE OF NUCLEAR ENERGY RESEARCH
    Inventors: To-Mai Wang, Sheng-Fu Yang, Yung-Wou Lee, Kin-Seng Sun, Wen-Cheng Lee, Ching-Liang Chen, Chin-Ching Tzeng
  • Patent number: 7815774
    Abstract: An element made by papermaking for use in the production of a casting cast which comprises an organic fiber, an inorganic fiber, and a binder. The contents of the organic fiber, the inorganic fiber, and the binder are preferably 10 to 70 parts by weight, 1 to 80 parts by weight, and 10 to 85 parts by weight, respectively. The binder is preferably an organic binder. The organic fiber is preferably pulp fiber.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: October 19, 2010
    Assignee: Kao Corporation
    Inventors: Tokuo Tsuura, Hiroaki Kobayashi, Yoshimasa Takagi, Shigeo Nakai, Tokihito Sono
  • 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
  • Publication number: 20090242320
    Abstract: A water-resistant composite paper, suitable for use as a loudspeaker component, is made from a composition including wood pulp, hydrophobic fibers, and stiffening fibers that retain stiffness when wet. In some examples, fibrillated acrylic fibers and glass fibers are used.
    Type: Application
    Filed: March 27, 2008
    Publication date: October 1, 2009
    Applicant: BOSE CORPORATION
    Inventors: Agota F. Fehervari, Samuel D. Parrish, Martin J. Schad, Mark P. Temple, Robert E. Evans, Christopher D. Weaver
  • Publication number: 20090211717
    Abstract: A process of producing a part for casting including the step of preparing a raw material slurry containing inorganic fibers, organic fibers, a thermosetting resin, a papermaking binder, and a sulfonate-based and/or a cellulose-based dispersant. The raw material slurry preferably further contains an inorganic powder and/or a water repellant.
    Type: Application
    Filed: November 29, 2006
    Publication date: August 27, 2009
    Applicant: Kao Corporation
    Inventors: Yoshimasa Takagi, Akira Yoshida
  • Publication number: 20090151884
    Abstract: The invention concerns a paper comprising (a) 40 to 70 parts by weight of polypyridobisimidazole fiber, polypyridobisimidazole pulp, or mixtures thereof and (b) 30 to 60 parts by weight of friction modifiers, structural resins, wet-strength resins, processing aids, fillers, and mixtures thereof; the parts by weight being based on the total amount of a) and b) in the paper.
    Type: Application
    Filed: December 19, 2006
    Publication date: June 18, 2009
    Inventors: Edmund A. Merriman, Achim Amma
  • Publication number: 20080311815
    Abstract: A water non-dispersible polymer microfiber is provided comprising at least one water non-dispersible polymer wherein the water non-dispersible polymer microfiber has an equivalent diameter of less than 5 microns and length of less than 25 millimeters. A process for producing water non-dispersible polymer microfibers is also provided, the process comprising: a) cutting a multicomponent fiber into cut multicomponent fibers; b) contacting a fiber-containing feedstock with water to produce a fiber mix slurry; wherein the fiber-containing feedstock comprises cut multicomponent fibers; c) heating the fiber mix slurry to produce a heated fiber mix slurry; d) optionally, mixing the fiber mix slurry in a shearing zone; e) removing at least a portion of the sulfopolyester from the multicomponent fiber to produce a slurry mixture comprising a sulfopolyester dispersion and water non-dispersible polymer microfibers; and f) separating the water non-dispersible polymer microfibers from the slurry mixture.
    Type: Application
    Filed: August 27, 2008
    Publication date: December 18, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Rakesh Kumar Gupta, Daniel William Klosiewicz, Melvin Glenn Mitchell