Mineral Fiber Patents (Class 162/152)
  • Patent number: 10576419
    Abstract: A selective catalytic reduction system may include a single housing defining a single centerline axis. The selective catalytic reduction system may also include a diesel particulate filter disposed within the single housing and having a DPF center axis aligned with the single centerline axis. The selective catalytic reduction system may also include an SCR catalyst disposed within the single housing and having a center axis aligned with the single centerline axis. In some implementations, the diesel particulate filter may include one or more SiC filters. In some implementations, the SCR catalyst may include one or more extruded SCR catalysts.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: March 3, 2020
    Assignee: Cummins Emission Solutions, Inc.
    Inventors: Randolph G. Zoran, Ryan M. Johnson, David M. Sarcona, A. Carl McDonald, Jr., Kenneth R. Federle, John G. Buechler, Scott Lubenow
  • Patent number: 10541417
    Abstract: The purpose of the present invention is to provide an electrode active material layer exhibiting excellent mechanical strength. This electrode material for a non-aqueous electrolyte secondary battery includes at least an electrode active material, a carbon-based conductive auxiliary agent, and a binder. The carbon-based conductive auxiliary agent has a linear structure, and includes ultra-fine fibrous carbon having an average fibre diameter of more than 200 nm but not more than 900 nm. The electrode material configures an electrode active material layer in which the maximum tensile strength (?M) in a planar direction and the tensile strength (?T) in an in-plane direction orthogonal to the maximum tensile strength (?M) satisfy relational expression (a), namely ?M/?T?1.6.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: January 21, 2020
    Assignee: TEIJIN LIMITED
    Inventors: Kazuki Yachi, Shinya Komura, Asami Kanematsu, Takahiro Daido
  • Patent number: 10421047
    Abstract: A filter membrane includes carbon nanotubes and carbon nitride nanoparticles. Inter-particle atomic interactions between the carbon nanotubes and the carbon nitride nanoparticles bind the carbon nanotubes and the carbon nitride nanoparticles together. A filter cartridge includes such a filter membrane disposed within an outer housing between a fluid inlet and a fluid outlet such that fluid passing through the outer housing between the fluid inlet and the fluid outlet passes through the filter membrane. Such filter membranes may be formed by dispersing carbon nanotubes and carbon nitride nanoparticles in a liquid to form a suspension, and passing the suspension through a filter to deposit the nanotubes and nanoparticles on the filter. Liquid may be filtered by causing the liquid to pass through such a filter membrane.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: September 24, 2019
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Darryl N. Ventura, Sankaran Murugesan, Oleksandr V. Kuznetsov, Valery N. Khabashesku, Oleg A. Mazyar
  • Patent number: 9871257
    Abstract: Provided is a porous electrode substrate having excellent thickness precision, gas permeability and conductivity, handling efficiency, low production costs and a high carbonization rate during carbonization. Also provided are a method for manufacturing such a substrate, a precursor sheet and fibrillar fiber used for forming such a substrate, along with a membrane electrode assembly and a polymer electrolyte fuel cell that contain such a substrate. The method for manufacturing a porous electrode substrate includes step (1) for manufacturing a precursor sheet in which short carbon fibers (A) and carbon fiber precursor (b) are dispersed, and step (2) for carbonizing the precursor sheet, and the volume contraction rate of carbon fiber precursor (b) in step (2) is 83% or lower.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: January 16, 2018
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Kazuhiro Sumioka, Shigeru Tanoue, Yoshihiro Sako
  • Patent number: 9822488
    Abstract: The invention relates to an ultralong hydroxyapatite nanowire/microwire, a method of preparing the same, a hydroxyapatite paper comprising the same and a preparation method thereof, and provides an ultralong hydroxyapatite nanowire/microwire having a length of tens to hundreds of micrometers and a diameter of tens to hundreds of nanometers. There is also provided a method of preparing the ultralong hydroxyapatite nanowire/microwire, a hydroxyapatite paper comprising the ultralong hydroxyapatite nanowire/microwire, and a method of preparing the hydroxyapatite paper.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: November 21, 2017
    Assignee: Shanghai Institute of Ceramics, Chinese Academy of Sciences
    Inventors: Yingjie Zhu, Bingqiang Lu, Feng Chen
  • Patent number: 9752541
    Abstract: A filter media includes flutes, forward plugs, and aft plugs. Each of the flutes has a forward flute face, an aft flute face, and a flute body defining a flute conduit to convey the fluid. The forward plugs are disposed in alternating ones of the flutes. Each forward plug includes a plug base and an aerodynamic plug nose. The aerodynamic plug nose has a center axis and a nose surface tapering outwardly from the center axis towards the plug base. The plug nose is configured to aerodynamically redirect a flow of the fluid away from the center axis. The flutes that have forward plugs include a flute outlet disposed at the aft flute face. The aft plugs are disposed in the flutes adjacent to the flutes that have corresponding forward plugs. The flutes that have aft plugs include a flute inlet disposed at the forward flute face.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: September 5, 2017
    Assignee: Caterpillar Inc.
    Inventors: Kevin Martin, Jason Jura, Bryant Morris
  • Patent number: 9573853
    Abstract: A method and apparatus for providing molten metal infiltration into a component is provided.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: February 21, 2017
    Assignee: Rolls-Royce North American Technologies Inc.
    Inventor: Andrew J. Lazur
  • Patent number: 9200411
    Abstract: A process to manufacture a paper derived from minerals includes the steps of preparing a mineral preparation that includes 50% to 70% of total dry weight of rocks that have been crushed and ground into a powdery substance; combining the mineral preparation with a sodium silicate solution of total dry weight of 30% to 50%; and adding additives having a weight of 2% to 5% of a total dry weight. The powdery substance may have granules of about 0.05 mm to 0.08 mm in diameter and can be mixed with vitamin powder. The igneous rocks can be selected from the set of: dolostone, basalt, granite, gabbro, andesite, diorite, obsidian, pegmatite, peridotite, pumice, rylolite, and scoria. Sedimentary rocks can be selected from the set of: limestone, sandstone, conglomerate, shale, siltstone, brecca, gypsum, chert, travertine, flint, iron ore, rock salt, and oil shale.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: December 1, 2015
    Inventor: Lee Chen
  • 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: 20140034257
    Abstract: The present invention provides a base material for disk rolls which is a platy molded article for obtaining ring-shaped disks for use in a disk roll comprising a rotating shaft and ring-shaped disks fitted thereon by insertion, whereby the peripheral surface of the disks serves as a conveying surface, the base material comprising inorganic fibers having a crystallization temperature of 800-900° C., a filler, and a clay. Also disclosed is a disk roll which comprises disks cut out of the base material.
    Type: Application
    Filed: October 23, 2013
    Publication date: February 6, 2014
    Applicant: NICHIAS CORPORATION
    Inventors: Masaaki NAKAYAMA, Masatoshi Mitsuta
  • 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
  • Patent number: 8585864
    Abstract: Flame retardant composite materials are provided which include at least one first paper which comprises carbon nanofibers and graphite oxide particles. The composite materials may further include at least one second paper which comprises carbon nanofibers. The composites may further include one or more structural material layers sandwiched between the first and second papers. Occupant structures are also provided with fire and smoke retardant surfaces composed of carbon nanofibers/graphite oxide particles papers at least partially surrounding occupants of the occupant structures.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: November 19, 2013
    Assignee: Florida State University Research Foundation, Inc.
    Inventors: Chuck Zhang, Zhiyong Liang, Ben Wang, Qiang Wu
  • Patent number: 8317978
    Abstract: A method of fabricating a non-brittle, carbon nanopaper from single wall, multiwall, and combination thereof, from carbon nanotubes, using a vacuum deposition, high temperature annealing, and polystyrene polymer rinse process; which nanopaper can be nitrided by either a plasma-enhanced chemical vapor deposition (PECVD) process, or an by an electrochemical method, to obtain a useful chemically functionalized substrate, a substrate containing metastable N4, N8, and longer chain polymeric nitrogen clusters. Such nitrided carbon nanopaper can be used to enhance the ballistic performance of gun propellants, while reducing gun barrel wear and erosion thereof.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: November 27, 2012
    Inventors: Thelma G. Manning, Zafar Iqbal
  • Patent number: 8062565
    Abstract: A non-woven material, that can be formed into an acoustic ceiling tile, is provided. The material includes a substantially planar and self-supporting core of an inorganic base fiber and a synthetic thermal bonding fiber. The synthetic thermal bonding fiber preferably has an increased bonding surface area that improves adhesion and porosity to provide a base mat or core with a low density to provide sound absorption required by an acoustic ceiling tile.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: November 22, 2011
    Assignee: USG Interiors, Inc.
    Inventors: Donald S. Mueller, Bangji Cao, Weixin D. Song, Qing Yu
  • Patent number: 8038843
    Abstract: A method for manufacturing a sheet of paper from a pulp and a sheet of paper obtained by the present method, wherein said pulp comprises a mixture of natural and/or synthetic fibers, water, and at least one aqueous suspension and/or dispersion comprising at least one mineral material, wherein said dispersion or suspension comprises, as a steric dispersing agent of at least one mineral material, at least one copolymer comprising at least one vinylic monomer, at least one non-ionic monomer, or a mixture of several monomers having formula (I) in the present method, wherein said agent limits the presence of divalent ions in the aqueous phase and said agent is not a chelating agent.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: October 18, 2011
    Assignee: Coatex S.A.S.
    Inventors: Olivier Guerret, Francois Dupont, Jacques Mongoin
  • Publication number: 20110247839
    Abstract: Gravity-laid inorganic fiber webs and methods of making and using are disclosed. The gravity-laying process comprises mechanically separating inorganic fibers and collecting the fibers as a web, and may comprise blending of multiple types of inorganic fibers and/or blending of inorganic particulate additives with the fibers.
    Type: Application
    Filed: April 5, 2011
    Publication date: October 13, 2011
    Inventors: Lahoussaine Lalouch, John J. Rogers, George W. Frost
  • 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: 7927459
    Abstract: Methods for improving the tear strength in non-woven chopped strand mats during the manufacturing process of the mats are provided. In particular, the tear strength of the mat can be improved as the mat is being formed in response to current manufacturing conditions by the addition of a water soluble polyol, such as polyvinyl alcohol, or a cationic dispersant to the binder seal pit. Alternatively, a cationic dispersant may be added to the white water chest to improve the tear strength of the chopped strand mat. The addition of polyvinyl alcohol or a cationic dispersant to the binder seal pit results in an immediate or nearly immediate improvement of the tear strength of the chopped strand mat. Both the polyvinyl alcohol and the cationic dispersant can be utilized to improve the tear strength of a chopped strand mat regardless of the type of binder or components in the white water.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: April 19, 2011
    Assignee: OCV Intellectual Capital, LLC
    Inventors: Helen Y. Huang, Paul Klett, Liang Chen, Timothy A. Miller, Timothy R. Gilbert
  • 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
  • Patent number: 7862687
    Abstract: A process useful for producing low density high mineral wool based acoustical panels with improved acoustical absorption properties using a water felting process is disclosed. The process includes forming a dilute slurry mixture including water, mineral wool, a thermoplastic binder and/or starch; and distributing the dilute slurry on a porous carrier to have the slurry dewatered to a base mat by gravity drainage to remove water by gravity. A vacuum is adjusted to gradually apply vacuum to the gravity dewatered base mat to further dewater the base mat without subjecting the mat to static pressure that would compress the base mat. The base mat is dried to form an acoustical ceiling product that has a low density and excellent acoustical absorption properties.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: January 4, 2011
    Assignee: United States Gypsum Company
    Inventors: Mark H. Englert, Qing Yu
  • Publication number: 20100314061
    Abstract: A method for manufacturing a sheet of paper from a pulp and a sheet of paper obtained by the present method, wherein said pulp comprises a mixture of natural and/or synthetic fibers, water, and at least one aqueous suspension and/or dispersion comprising at least one mineral material, wherein said dispersion or suspension comprises, as a steric dispersing agent of at least one mineral material, at least one copolymer comprising at least one vinylic monomer, at least one non-ionic monomer, or a mixture of several monomers having formula (I) in the present method, wherein said agent limits the presence of divalent ions in the aqueous phase and said agent is not a chelating agent.
    Type: Application
    Filed: October 10, 2007
    Publication date: December 16, 2010
    Applicant: COATEX S.A.S.
    Inventors: Olivier Guerret, Francois Dupont, Jacques Mongoin
  • Publication number: 20100279061
    Abstract: The present invention relates to a machine for fabricating a medium for abrasive-coated grinding material, wherein at least one continuous reinforcing element in the form of a tape or a yarn is introduced continuously during wet formation of the medium.
    Type: Application
    Filed: November 26, 2008
    Publication date: November 4, 2010
    Applicant: Arjowiggins Arches
    Inventor: Thierry Mayade
  • Publication number: 20100115900
    Abstract: A flexible fibrous material comprises inorganic fibers and a binder and methods of making the same. The binder comprises at least one of: a first organic polymer having anionic groups and a flocculent, the flocculent comprising a second organic polymer having cationic groups; or a reaction product of the first organic polymer and the flocculent. Flexible fibrous material according to the present invention may be used as components in certain pollution control devices.
    Type: Application
    Filed: January 29, 2008
    Publication date: May 13, 2010
    Inventors: Anne N. De Rovere, Gary F. Howorth, Michael Patrick M. Mandanas
  • Patent number: 7387704
    Abstract: A non-woven mat of inorganic fiber is disclosed having a substance which is lower at the edges of the mat than in the remainder of the mat. Apparatus for making such a mat includes: a source of a slurry of inorganic fiber in a liquid; a forming wire disposed to move past the source, the liquid passing through the forming wire to deposit the inorganic fiber on the forming wire; a mask across a part of the width of the forming wire to hinder passage of the liquid through the forming wire over the part, the effectiveness of the mask varying in the direction of movement of the forming wire past the slurry source.
    Type: Grant
    Filed: January 4, 2005
    Date of Patent: June 17, 2008
    Assignees: BPB PLC, Moy Isover Limited
    Inventors: John Walters, Jocelyn Fitzsimons
  • Patent number: 7384514
    Abstract: A non-woven mat of inorganic fiber is disclosed having a substance which is lower at the edges of the mat than in the remainder of the mat. Apparatus for making such a mat includes: a source of a slurry of inorganic fiber in a liquid; a forming wire disposed to move past the source, the liquid passing through the forming wire to deposit the inorganic fiber on the forming wire; a mask across a part of the width of the forming wire to hinder passage of the liquid through the forming wire over the part, the effectiveness of the mask varying in the direction of movement of the forming wire past the slurry source.
    Type: Grant
    Filed: January 4, 2005
    Date of Patent: June 10, 2008
    Assignees: BPB PLC, Moy Isover Limited
    Inventors: John Walters, Jocelyn Fitzsimons
  • Patent number: 7323082
    Abstract: A method for forming plate-like ceramic articles, comprising at least one step for deposition by pouring of at least one layer of a ceramic mixture that comprises an aqueous vehicle on a substantially absorbent transfer surface adapted to draw the aqueous vehicle, at least one step for drying so as to obtain a continuous material strand, and a cutting step for cutting the strand into a plurality of ceramic articles. An apparatus for performing the method comprising a framework for supporting an absorbent transfer surface, at least one unit for depositing at least one mixture layer onto the surface, at least one drying unit for at least partial drying of the mixture layer to obtain a continuous strand of plastic ceramic material, and a cutting unit.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: January 29, 2008
    Assignee: Officine Morandi S.r.L.
    Inventor: Eugenio Morandi
  • Publication number: 20070277948
    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: Application
    Filed: May 10, 2007
    Publication date: December 6, 2007
    Applicant: USG INTERIORS, INC.
    Inventors: Adelaida CARBO, Gary HACKER, Charles BYERS
  • Patent number: 6919132
    Abstract: A fine texture fiberboard panel having a low resistivity value and a high board hardness value. The panel includes mineral fibers, perlite, cellulosic fibers, and binder. The mineral fibers comprise from about 50% to about 85%, the perlite includes from 0% to about 18%, the cellulosic fiber comprises from about 2% to about 7% and the binder includes from about 6% to about 15% of the panel on a dry solids weight basis. The concentration of mineral fibers includes from about 30% to about 65% nodulated mineral fiber. The perlite has a density in the range from about 7 to about 20 pcf.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: July 19, 2005
    Assignee: AWI Licensing Company
    Inventors: John Felegi, Jr., Robert C. Garman
  • Patent number: 6855404
    Abstract: A laminate of inorganic sheet and polyester resin having an overall thickness of 5 to 25 mils and having an elongation at break in both the cross direction and machine direction of at least 25%.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: February 15, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: David Wayne Anderson, Dariusz Wlodzimierz Kawka
  • Patent number: 6830656
    Abstract: The present invention relates to a nonwoven web comprised of metal or refractory fibers with nylon as a binder. The nonwoven web is prepared by forming a foam furnish by agitating the fibers in a foamed medium, and passing the foam furnish onto a screen and defoaming the furnish. It is preferred that the nylon binder is added to the foam furnish in the form of fibers. Once the furnish is defoamed to form a nonwoven web, the sheet is dried at a temperature sufficient to melt the nylon binder.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: December 14, 2004
    Assignee: FiberMark, Inc.
    Inventor: Homan B. Kinsley, Jr.
  • Patent number: 6746571
    Abstract: A mat containing highly machine direction oriented (90% or greater), discontinuous reinforcement fibers, is produced on inclined wire or rotary paper making machinery. Fibers are first uniformly dispersed in an aqueous medium containing thickeners and wetting agents. In one embodiment, antifoaming agents are also added to prevent floating fibers which entangle and reduce orientation. Thermoplastic fibers or particles may also be included. Stock is brought into an open headbox in a flow pattern which allows the fibers to decelerate before approaching the porous suction belt (wire). As the fibers approach the suction belt, the fibers begin to turn and align in the streamline so as to present one end toward the suction wire. The leading ends of the fibers are gripped by the moving belt which drags the fibers out of the dispersion stock in a straight line. The porous mat produced may be dried and bonded through hot air, heat and/or pressure, or chemical binders.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: June 8, 2004
    Assignee: Virginia Tech Foundation, Inc.
    Inventor: Stephen P. Scheinberg
  • Patent number: 6706146
    Abstract: A method for manufacturing a preform having a desirably uniform distribution of structural forms (for example and without limitation, particles, flakes, and fibers) therethrough. The method according to the present invention includes using an electrical charge reaction between cationic and anionic agents (such as, without limitation, cationic and anionic polymers) to cause the structural forms to floc or clump together in a mass in which the structural forms are desirably uniformly distributed therethrough. The flocculent mass is then dewatered and/or dried to form a preform that is ready for further processing.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: March 16, 2004
    Assignee: Honeywell International Inc.
    Inventor: Roger Lee Ken Matsumoto
  • Publication number: 20040026055
    Abstract: The present invention is drawn to a thermally and structurally stable, noncombustible paper, comprising a dominant amount of aluminosilicate refractory fibers and from 0.2% to 4% by weight of a polymeric binder. The refractory fibers can be substantially from 1 micron to 35 microns in width and from 1 cm to 15 cm in length, though other functional dimensions can be used. Optionally, from 0.1% to 5% by weight of viscose fibers and/or from 0.2% to 5% by weight of silicic acid aquagel can also be present. The papers of the present invention are mat-type papers that can be structurally stable at very high temperatures up to about 1400° C. or more.
    Type: Application
    Filed: January 31, 2003
    Publication date: February 12, 2004
    Inventors: John J. Titus, Roger C.Y. Wang
  • Publication number: 20030201082
    Abstract: The present invention relates to a nonwoven web comprised of metal or refractory fibers with nylon as a binder. The nonwoven web is prepared by forming a foam furnish by agitating the fibers in a foamed medium, and passing the foam furnish onto a screen and defoaming the furnish. It is preferred that the nylon binder is added to the foam furnish in the form of fibers. Once the furnish is defoamed to form a nonwoven web, the sheet is dried at a temperature sufficient to melt the nylon binder.
    Type: Application
    Filed: April 30, 2002
    Publication date: October 30, 2003
    Inventor: Homan B. Kinsley
  • Patent number: 6616802
    Abstract: The present invention relates to a method for forming a non-woven fibrous web comprised of refractory fibers which comprises forming a foam furnish by agitating the fibers in a foamed medium, and passing the foam furnish onto a screen and defoaming the furnish. The present invention employs a unique apparatus for effectively agitating the refractory fibers in the foamed medium, the agitating means being mounted for displacement within the foamed medium and including a convex leading surface facing in the direction of displacement. The leading surface includes upper and lower portions converging in the direction of displacement to form a generally convex leading surface and driving means for displacing the agitating means in the direction of displacement for dispersing and mutually separating the metal fibers within the foamed medium.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: September 9, 2003
    Assignee: FiberMark, Inc.
    Inventors: Homan B. Kinsley, Jr., Christopher B. Peart
  • Publication number: 20030056912
    Abstract: The invention concerns a catalyst carrier comprising a fibre paper impregnated with a slurry comprising silica sol, micro fibres and a filler, wherein said micro fibres have an equivalent average particle size, measured with sedigraph method, from about 200 nm to about 30000 nm and said filler has an average equivalent particle size, measured with sedigraph method, from about 300 to about 10000 nm. The invention further concerns a method of its preparation, a slurry useful therefore, a catalyst comprising such a catalyst carrier and use of the catalyst.
    Type: Application
    Filed: September 28, 2001
    Publication date: March 27, 2003
    Applicant: AKZO NOBEL N.V.
    Inventors: Anna-Carin Dellve, Bozena Tokarz, Mats Nystrom
  • Publication number: 20030051839
    Abstract: A method for manufacturing a preform having a desirably uniform distribution of structural forms (for example and without limitation, particles, flakes, and fibers) therethrough. The method according to the present invention includes using an electrical charge reaction between cationic and anionic agents (such as, without limitation, cationic and anionic polymers) to cause the structural forms to floc or clump together in a mass in which the structural forms are desirably uniformly distributed therethrough. The flocculent mass is then dewatered and/or dried to form a preform that is ready for further processing.
    Type: Application
    Filed: October 28, 2002
    Publication date: March 20, 2003
    Inventor: Roger Lee Ken Matsumoto
  • Patent number: 6533897
    Abstract: The present invention is drawn to a thermally and structurally stable, noncombustible paper, comprising a dominant amount of aluminosilicate refractory fibers and from 0.2% to 4% by weight of a polymeric binder. The refractory fibers can be substantially from 1 micron to 35 microns in width and from 1 cm to 15 cm in length, though other functional dimensions can be used. Optionally, from 0.1% to 5% by weight of viscose fibers and/or from 0.2% to 5% by weight of silicic acid aquagel can also be present. The papers of the present invention are mat-type papers that can be structurally stable at very high temperatures up to about 1400° C. or more.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: March 18, 2003
    Assignee: FMJ Technologies, LLC
    Inventors: Roger C. Y. Wang, John Titus
  • Patent number: 6524438
    Abstract: A method for manufacturing a preform having a desirably uniform distribution of structural forms (for example and without limitation, particles, flakes, and fibers) therethrough. The method according to the present invention includes using an electrical charge reaction between cationic and anionic agents (such as, without limitation, cationic and anionic polymers) to cause the structural forms to floc or clump together in a mass in which the structural forms are desirably uniformly distributed therethrough. The flocculent mass is then dewatered and/or dried to form a preform that is ready for further processing.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: February 25, 2003
    Assignee: Honeywell International Inc.
    Inventor: Roger Lee Ken Matsumoto
  • Patent number: 6521086
    Abstract: A sized staple fiber product that disperses quickly, thoroughly and uniformly in water is particularly useful in the manufacture of gypsum board by the slurry process. An aqueous chemical size composition on the surface of the fibers contains a high level of surfactant and can contain a polymer film former and a biocide. Preferably, the fiber is chopped glass fiber. Novel sizing composition and methods of making and using the fiber are also disclosed.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: February 18, 2003
    Assignee: Johns Manville International, Inc.
    Inventor: Henry Dall Smith, Jr.
  • Patent number: 6517675
    Abstract: Provided by the present invention is a wet-layed, nonwoven sheet which is comprised of metal fiber and metal powder. Generally, the amount of metal fiber comprises from 20 to 95% by weight and the amount of metal comprises from 5 to 80% by weight of the sheet. Such a wet-layed nonwoven sheet is economically preferable to a sheet comprised totally of metal fiber, since the metal powder is much less expensive. Among other factors, the present invention is based upon the recognition that by using various process techniques, the combination of metal fiber and metal powder can be wet-layed to obtain a structure of sufficient strength for subsequent handling and sintering.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: February 11, 2003
    Assignee: FiberMark, Inc,
    Inventor: Homan B. Kinsley, Jr.
  • Patent number: 6497787
    Abstract: A method of making a microsphere-filled wet-laid veil involves forming a non-woven fibrous veil, contacting the veil with an impregnation binder composition having a binder and microspheres, and impregnating the microspheres of the impregnation binder composition into the veil to form a microsphere-filled wet-laid veil. The microsphere-filled wet-laid veils produced according to the method of the present invention are useful to make molded composite articles.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: December 24, 2002
    Assignee: Owens-Corning Veil Netherlands B.V.
    Inventor: Paul Adriaan Geel
  • Publication number: 20020189774
    Abstract: This invention relates to an improvement in coatings particularly suited for the preparation of paper products having an ink jet coating applied thereto and to the resulting paper products. The improvement in ink jet coatings resides in the incorporation of a primary amine functional polyvinyl alcohol (PVOH/PVNH2) as a polymeric binder. One form of an amine functional polyvinyl alcohol is produced by the hydrolysis of a copolymer of vinyl acetate and N-vinylformamide or vinyl acetate and allyl amine. Another is the polyvinyl butyral derivative of polyvinyl alcohol which typically is formed by the reaction of a 4-amino alkyl aldehyde dialkyl acetal, such as 4-aminobutyraldehyde dimethyl acetal with polyvinyl alcohol.
    Type: Application
    Filed: March 8, 2001
    Publication date: December 19, 2002
    Inventor: John Richard Boylan
  • Publication number: 20020174963
    Abstract: The present invention is drawn to a thermally and structurally stable, noncombustible paper, comprising a dominant amount of aluminosilicate refractory fibers and from 0.2% to 4% by weight of a polymeric binder. The refractory fibers can be substantially from 1 micron to 35 microns in width and from 1 cm to 15 cm in length, though other functional dimensions can be used. Optionally, from 0.1% to 5% by weight of viscose fibers and/or from 0.2% to 5% by weight of silicic acid aquagel can also be present. The papers of the present invention are mat-type papers that can be structurally stable at very high temperatures up to about 1400° C. or more.
    Type: Application
    Filed: April 13, 2001
    Publication date: November 28, 2002
    Applicant: FMJ Technologies, LLC
    Inventors: Roger C.Y. Wang, John Titus
  • Patent number: 6451167
    Abstract: A mat containing highly machine direction oriented (90% or greater), discontinuous reinforcement fibers, is produced on inclined wire or rotary paper making machinery. Fibers are first uniformly dispersed in an aqueous medium containing thickeners and wetting agents. In one embodiment, antifoaming agents are also added to prevent floating fibers which entangle and reduce orientation. Thermoplastic fibers or particles may also be included. Stock is brought into an open headbox in a flow pattern which allows the fibers to decelerate before approaching the porous suction belt (wire). As the fibers approach the suction belt, the fibers begin to turn and align in the streamline so as to present one end toward the suction wire. The leading ends of the fibers are gripped by the moving belt which drags the fibers out of the dispersion stock in a straight line. The porous mat produced may be dried and bonded through hot air, heat and/or pressure, or chemical binders.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: September 17, 2002
    Assignee: Virginia Tech Foundation, Inc.
    Inventor: Stephen P. Scheinberg
  • Publication number: 20020096279
    Abstract: Provided by the present invention is a wet-layed, nonwoven sheet which is comprised of metal fiber and metal powder. Generally, the amount of metal fiber comprises from 20 to 95% by weight and the amount of metal comprises from 5 to 80% by weight of the sheet. Such a wet-layed nonwoven sheet is economically preferable to a sheet comprised totally of metal fiber, since the metal powder is much less expensive. Among other factors, the present invention is based upon the recognition that by using various process techniques, the combination of metal fiber and metal powder can be wet-layed to obtain a structure of sufficient strength for subsequent handling and sintering.
    Type: Application
    Filed: October 26, 2001
    Publication date: July 25, 2002
    Inventor: Homan B. Kinsley
  • Patent number: 6413303
    Abstract: An activated carbon air filter for use in room air cleaners and the like has a corrugated paper structure formed of substantially non-porous paper, preferably Kraft paper, whose surface is coated with carbon by means for example of a dipping process in which the structure is immersed in an aqueous slurry containing carbon and a binder. Through use of a particular paper thickness and channel dimensions, a highly efficient, low volume, long lifetime air cleaning filter is obtained.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: July 2, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Sigrid M. R. Gelderland, Johannes Marra
  • Patent number: 6346168
    Abstract: Provided by the present invention is a wet-layed, nonwoven sheet which is comprised of metal fiber and metal powder. Generally, the amount of metal fiber comprises from 20 to 95% by weight and the amount of metal comprises from 5 to 80% by weight of the sheet. Such a wet-layed nonwoven sheet is economically preferable to a sheet comprised totally of metal fiber, since the metal powder is much less expensive. Among other factors, the present invention is based upon the recognition that by using various process techniques, the combination of metal fiber and metal powder can be wet-layed to obtain a structure of sufficient strength for subsequent handling and sintering.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: February 12, 2002
    Assignee: Fibermark, Inc.
    Inventor: Homan B. Kinsley, Jr.
  • Patent number: 6312561
    Abstract: A sheet composition with certain proportions of meta-aramids and mica used as a flame barrier composition.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: November 6, 2001
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Herman Hans Forsten, Sami Khan
  • Patent number: 6299727
    Abstract: The present invention provides a ceiling panel intended for good design which exhibits a light weight, sufficient flexural strength, incombustibility, sound-absorbing properties and heat insulation properties and desirable electric radiation-absorbing properties as an interior ceiling panel that acts as a best member for solving problems with communications by wireless LAN. The present invention also provides an interior ceiling panel having enhanced electric radiation barrier properties attained by applying a metal foil to the foregoing ceiling panel. A novel incombustible sound-absorbing electric radiation-absorbing ceiling panel having a thickness of from 1 mm to 30 mm is obtained by subjecting a water-dispersed slurry of a mixture of from 67 to 92 wt-% of a rock wool, from 0.5 to 8 wt-% of a beaten pulp, from 2 to 13 wt-% of a binder made of an organic resin, from 0.15 to 1 wt-% of a flocculating agent, from 0.5 to 10 wt-% of a natural mineral fiber and from 0.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: October 9, 2001
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Hideyuki Hatanaka, Masato Ohtsubo