Fibers Patents (Class 501/35)
  • Patent number: 10751367
    Abstract: An aluminoborate composition, an alumino-borosilicate glass composition, or a mixture thereof, and solid or hollow microspheres thereof, as defined herein. Also disclosed are methods of making and using the disclosed compositions, for example, forming microspheres for use in bioactive applications, and composition extracts for use in treating or healing wounds.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: August 25, 2020
    Assignee: Corning Incorporated
    Inventors: Huayun Deng, Ye Fang, Qiang Fu, Lina Ma, John Christopher Mauro, Michael Joshua Snyder, Dana Lynne Widmer-Quiel
  • Patent number: 10479721
    Abstract: New glass compositions and applications thereof are disclosed. A glass composition as described herein can include 50 to 55 weight percent SiO2, 17 to 26 weight percent B2O3, 13 to 19 weight percent Al2O3, 0 to 8.5 weight percent MgO, 0 to 7.5 weight percent ZnO, 0 to 6 weight percent CaO, 0 to 1.5 weight percent Li2O, 0 to 1.5 weight percent F2, 0 to 1 weight percent Na2O, 0 to 1 weight percent Fe2O3, 0 to 1 weight percent TiO2, and 0 to 8 weight percent of other constituents. Also described herein are glass fibers formed from such compositions, composites, and articles of manufacture comprising the glass compositions and/or glass fibers.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: November 19, 2019
    Inventor: Hong Li
  • Patent number: 10399889
    Abstract: The present invention provides a glass fiber composition, glass fiber and composite material therefrom. The glass fiber composition comprises the following components expressed as percentage by weight: 58.5-62.5% SiO2, 14.5-17% Al2O3, 10.5-14.5% CaO, 8-10% MgO, 0.5%<Li2O?1%, 0.05-1% Na2O, 0.05-1% K2O, 0.05-1% Fe2O3, 0.15-1.5% TiO2, wherein the range of the molar percentage ratio C1=Li2O/Al2O3 is 0.105-0.22, and the range of the molar percentage ratio C2=MgO/(CaO+MgO) is 0.435-0.55. Said composition can increase the mechanical properties of the glass while reducing the glass viscosity, crystallization risk and amount of bubbles, thereby making it more suitable for large-scale production with refractory-lined furnaces.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: September 3, 2019
    Assignee: JUSHI GROUP CO., LTD.
    Inventors: Lin Zhang, Guorong Cao, Wenzhong Xing, Guijiang Gu, Xiucheng Hong
  • Patent number: 10301213
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components and which further includes intended addition of lithium oxide to improve the thermal stability of the fiber. The inorganic fiber exhibits good thermal performance at 1260° C. and greater, low linear shrinkage, retains mechanical integrity after exposure to the use temperature, and exhibits low biopersistence in physiological fluids. Also provided are thermal insulation product forms prepared from a plurality of the inorganic fibers, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: May 28, 2019
    Assignee: Unifrax I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
  • Patent number: 10189742
    Abstract: A composition for producing a glass fiber, including the following components with the corresponding percentage amounts by weight: SiO2: 58-62%; Al2O3: 14-18%; CaO+MgO: 20-24.5%; CaO: greater than 14%; Li2O: 0.01-0.5%; Na2O+K2O: less than 2%; TiO2: less than 3.5%; Fe2O3: less than 1%; and F2: less than 1%. The weight percentage ratio of CaO/MgO is greater than 2 and less than or equal to 2.6; and the weight percentage ratio SiO2/CaO is between 3.3 and 4.3. The invention also provides a glass fiber produced using the composition and a composite material including the glass fiber.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: January 29, 2019
    Assignee: JUSHI GROUP CO., LTD.
    Inventors: Lin Zhang, Guorong Cao, Wenzhong Xing, Guijiang Gu
  • Patent number: 10029443
    Abstract: Provided is a glass fiber fabric-resin composition laminate which is thinner than the conventional glass fiber fabric-resin composition laminates and has a strength equal to or higher than that of the conventional laminates. In the glass fiber fabric-resin composition laminate 1, one or more layers of first glass fiber fabrics 2 to 5 have a total thickness of 50 to 100% with respect to the overall thickness. The glass composition of the first glass fiber fabrics 2 to 5 is 57 to 70 mass % of SiO2, 18 to 30 mass % of Al2O3, 5 to 15 mass % of MgO, 0 to 12 mass % of CaO, 0 to 1 mass % of at least one of Li2O, Na2O, and K2O, 0 to 1 mass % of TiO2, and 0 to 1 mass % of B2O3.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: July 24, 2018
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Dai Sakuma, Noriyoshi Sato, Toshihiro Tashiro
  • Patent number: 10000404
    Abstract: One subject of the invention is a process for manufacturing a glass, the chemical composition of which comprises at least 3% by weight of iron oxide, expressed in the form Fe2O3, comprising a step of electric melting, using electrodes submerged in the molten glass, of a vitrifiable batch material mixture containing at least one manganese carrier wherein the manganese is in an oxidation state higher than +2.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: June 19, 2018
    Assignee: SAINT-GOBAIN ISOVER
    Inventors: Richard Clatot, Stéphane Maugendre
  • Patent number: 9919948
    Abstract: A high silica glass composition comprising about 92 to about 99.9999 wt. % SiO2 and from about 0.0001 to about 8 wt. % of at least one dopant selected from Al2O3, CeO2, TiO2, La2O3, Y2O3, Nd2O3, other rare earth oxides, and mixtures of two or more thereof. The glass composition has a working point temperature ranging from 600 to 2,000° C. These compositions exhibit stability similar to pure fused quartz, but have a moderate working temperature to enable cost effective fabrication of pharmaceutical packages. The glass is particularly useful as a packaging material for pharmaceutical applications, such as, for example pre-filled syringes, ampoules and vials.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: March 20, 2018
    Assignee: MOMENTIVE PERFORMANCE MATERIALS, INC.
    Inventors: Kipyung Ahn, Guangjun Xu, Martin Panchula, Samuel Conzone, Tianjun Rong, Konstantin S. Zuyev, Yen Zhou
  • Patent number: 9878941
    Abstract: A glass composition including SiO2 in an amount from about 70.0 to about 78.2% by weight, Al2O3 in an amount from about 18.6 to about 26.2% by weight, MgO in an amount from about 3.1 to about 10.7% by weight, CaO in an amount from 0.0 to about 7.6% by weight, Li2O in an amount from about 0.1 to about 5.0% by weight, and Na2O in an amount from 0.0 to about 0.2% by weight is provided. In exemplary embodiments, the glass composition is free or substantially free of B2O3 and fluorine. The glass fibers have a specific strength between about 1.6×106 J/kg and 2.24×106 J/kg and a specific modulus between about 3.3×107 J/kg and 3.7×107 J/kg. Glass fibers formed from the inventive composition possess exceptionally high specific strength and a low density, which make them particularly suitable in applications that require high strength, high stiffness, and low weight, such as in wind blades and aerospace structures.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: January 30, 2018
    Assignee: OCV Intellectual Capital, LLC
    Inventors: Douglas Alan Hofmann, Peter B. McGinnis
  • Patent number: 9771294
    Abstract: Methods, systems and apparatus for producing continuous basalt fibers, microfibers, and microspheres from high temperature melts are disclosed. A cold crucible induction furnace is used to super heat crushed basalt rock to form a melt. The melt is cooled prior to forming a fiber. The fiber produced from the superheated melt possesses superior properties not found with conventional basalt fibers produced in gas furnaces. In some implementations, the superheated melt is spun into continuous basalt fibers. In some implementations, the superheated melt is blown into microfibers and microspheres.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: September 26, 2017
    Assignee: Americas Basalt Technology, LLC
    Inventors: Yevgeniy Zubko, Yurii Zubko
  • Patent number: 9714189
    Abstract: Embodiments of the present invention relate to glass compositions, glass fibers formed from such compositions, and related products. In one embodiment, a glass composition comprises 58-62 weight percent SiO2, 14-17 weight percent Al2O3, 14-17.5 weight percent CaO, and 6-9 weight percent MgO, wherein the amount of Na2O is 0.09 weight percent or less.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: July 25, 2017
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Hong Li
  • Patent number: 9650282
    Abstract: An application of glass fiber with low viscosity, high strength and energy saving, whose nominal diameter goes between 5-13 ?m, the deviation value of the diameter of the said glass fiber is within ±15% of the nominal diameter, characterized in that: the said glass fiber contains Al2O3, SiO2, MgO, CaO, Fe2O3 and Na2O, wherein, calculated as per weight percentage, the said glass fiber contains Al2O3 20-39%, Fe2O3 0.01-3%, Na2O 0.01-8.8%, B2O3 0-10%, MgO 7-20% and F2O 0%, wherein the content of SiO2 is 1.9-4.1 times that of CaO, and the content of CaO is 1-1.8 time(s) that of MgO.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: May 16, 2017
    Inventor: Dening Yang
  • Patent number: 9598309
    Abstract: Glass compositions are provided that are useful in a variety of applications including, for example, electronics applications, reinforcement applications, and others. Some embodiments of glass compositions can provide desirable dielectric constants, desirable dissipation factors, and/or desirable mechanical properties while also having desirable fiber forming properties.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: March 21, 2017
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Hong Li
  • Patent number: 9593038
    Abstract: Embodiments of the present invention provides fiberizable glass compositions formed from batch compositions comprising amounts of one or more glassy minerals, including perlite and/or pumice.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: March 14, 2017
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Hong Li, James C. Watson
  • Patent number: 9556059
    Abstract: Embodiments of the present invention provides fiberizable glass compositions formed from batch compositions comprising significant amounts of one or more glassy minerals, including perlite and/or pumice.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: January 31, 2017
    Inventors: Hong Li, James C. Watson
  • Patent number: 9556060
    Abstract: A low dielectric constant glass fiber, in mass percentage, includes 50%˜60% of SiO2, 10%˜20% of Al2O3, 12%˜20% of B2O3, 0˜4% of CaO, 4%˜10% of MgO, 0.1%˜0.5% of Na2O+K2O, 0˜0.5% of Li2O, 0.2%˜3% of F2 and 0˜0.2% of Fe2O3. Compared with the related art, the glass composition contains higher content of SiO2, which can greatly reduce dielectric properties of the glass fiber. Meanwhile, a small amount of F2 is added thereto, which not only can effectively improve the fiberizing temperature of the glass fiber but also can reduce glass viscosity and density and reduce glass refractive index and dielectric properties. In addition, lower content of CaO is further contained, but almost no alkali metal particles such as Na2O+K2O are contained, which further reduces the dielectric properties of the glass fiber.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: January 31, 2017
    Assignee: CHONGQING POLYCOMP INTERNATIONAL CORPORATION
    Inventors: Guoyun Yang, Yuan Yao, Cong Zhang, Haishen Liu, Lixiong Han
  • Patent number: 9428414
    Abstract: A composition for preparing high-performance glass fiber by tank furnace production comprising in preferred percentage by weight: 57.5˜62.5% of SiO2,14.5˜17.5% of Al2O3,13.5˜17.5% of CaO,6.5˜8.5% of MgO,0.05˜0.6% of Li2O,0.1˜2% of B2O3,0.1˜2% of TiO2,0.1˜2% of Na2O,0.1˜1% of K2O and 0.1˜1% of Fe2O3 and (CaO+MgO)/MgO>3, with the content of at least one of the three components, Li2O, B2O3 and TiO2higher than 0.5%, with the composition yielding glass fiber having improved mechanical property, causing the melting and clarification of glass and forming performance of fiber close to those of boron-free E glass, and facilitating industrial mass production by tank furnace processes with manufacturing costs close to those of conventional E glass.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: August 30, 2016
    Assignee: Jushi Group Co., Ltd.
    Inventors: Yuqiang Zhang, Guorong Cao, Bing Zhang, Lin Zhang, Wenzhong Xing, Guijiang Gu
  • Patent number: 9381277
    Abstract: Biocompatible and resorbable melt derived glass compositions which include: SiO2 60-70 weight-%, Na2O 5-20 weight-%, CaO 5-25 weight-%, MgO 0-10 weight-%, P2O5 0.5-3.0 weight-%, B2O3 0-15 weight-%, Al2O3 0-5 weight-%, and which contain less than 0.05 weight-% potassium. Biocompatible and resorbable glass fibers manufactured from these glass compositions, medical devices containing fibers of the invention, the use of these compositions for the manufacture of glass fiber and the use of the fibers for the manufacture of medical devices are also disclosed.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: July 5, 2016
    Assignee: Purac Biochem bv
    Inventors: Timo Lehtonen, Jukka Tuominen, Fredrik Ollila
  • Patent number: 9340449
    Abstract: Ceramic frit compositions including a cathode ray tube (CRT) glass component and methods for their manufacture are provided. Also provided are coating compositions including these ceramic frit compositions.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: May 17, 2016
    Inventor: Nazim Muhammad
  • Patent number: 9289534
    Abstract: A composite material including biocompatible and bioresorbable glass, a biocompatible and bioresorbable matrix polymer and a coupling agent capable of forming covalent bonds. The composite also includes a compatibilizer, where at least 10% of the structural units of the compatibilizer are identical to the structural units of the matrix polymer, and the molecular weight of the compatibilizer is less than 30000 g/mol. The use of this composite, a medical device which includes the composite and a method for preparing the composite are also disclosed.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: March 22, 2016
    Assignee: Purac Biochem bv
    Inventors: Timo Lehtonen, Jukka Tuominen
  • Patent number: 9287023
    Abstract: An electromagnetically active composite has an electrically-nonconductive host matrix and electrically-conductive nanostrand bodies embedded in a substantially uniform distribution throughout the host matrix. Each of the nanostrand bodies comprises a volume containing at least one nanostrand of filamentary metal. Adjacent nanostrand bodies that are sufficiently mutually proximate will interact electromagnetically with each other. The filamentary metal of the one or more nanostrands in each of the nanostrand bodies occupies a deminimus fraction of the overall volume occupied by the at least one nanostrand that comprises each of the nanostrand bodies. The filamentary metal is chosen from among the group of metals that includes nickel, nickel aluminides, iron, iron aluminides, alloys of nickel and iron, and alloys of nickel and copper.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: March 15, 2016
    Assignee: Conductive Composites Company, LLC
    Inventors: George Clayton Hansen, Nathan D. Hansen, Lauren Hansen
  • Patent number: 9242892
    Abstract: Glass fibers having non-circular cross sections, excellent strength and excellent modulus of elasticity, and a fiber-reinforced resin compact using the same are provided. The glass fibers having non-circular cross sections are obtained by spinning the molten glass prepared by melting a glass composition as a raw material for the glass fibers. The glass fibers have a composition in which the content of SiO2 is 57.0 to 63.0% by mass, the content of Al2O3 is 19.0 to 23.0% by mass, the content of MgO is 10.0 to 15.0% by mass and the content of CaO is 5.5 to 11.0% by mass, in relation to the total amount of the glass fibers, and the ratio of the content of MgO to the content of CaO, MgO/CaO falls within a range from 0.8 to 2.0.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: January 26, 2016
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Takashi Nonaka, Tsunefumi Aizawa
  • Patent number: 9227870
    Abstract: There is provided a glass fiber comprising the SiO2 content is 57.0 to 63.0% by weight; the Al2O3 content is 19.0 to 23.0% by weight; the MgO content is 10.0 to 15.0% by weight; the CaO content is 4.0 to 11.0% by weight; and the total content of SiO2, Al2O3, MgO and CaO is 99.5% by weight or higher based on the total weight.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: January 5, 2016
    Assignee: NITTO BOSEKI CO., LTD.
    Inventors: Takashi Nonaka, Hiroshi Kanno, Takamichi Inaba
  • Patent number: 9205030
    Abstract: Provided are a hard tissue restoration material, which is excellent in hard tissue restoration ability, extremely effective in promoting recalcification of dental enamel, and excellent in protection properties and aesthetic properties, and a hard tissue restoration method. The hard tissue restoration material according to the present invention is a biocompatible ceramic film with flexibility and pliability that is obtained, for example, by immersing a substrate, having the biocompatible ceramic film formed thereon, in a solvent, which does not dissolve the biocompatible ceramic but dissolves at least a portion of the substrate, to dissolve or separate the substrate. Also, with the hard tissue restoration method according to the present invention, the hard tissue restoration material according to the present invention is bonded to or wound around a hard tissue defect site.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: December 8, 2015
    Assignee: KINKI UNIVERSITY
    Inventors: Shigeki Hontsu, Hiroaki Nishikawa, Masanobu Kusunoki, Kazushi Yoshikawa, Kazuyo Yamamoto
  • Patent number: 9206068
    Abstract: A method of forming high strength glass fibers in a continuous system is provided. The method includes supplying a glass batch to a glass melting furnace lined with a material substantially free of noble metals. The glass batch comprises about 50-about 75 weight percent SiO2, about 15-about 30 weight percent Al2O3, about 5-about 20 weight percent MgO, about 0-about 10 weight percent CaO, about 0.25-about 5 weigh percent R2O. The method further includes melting the glass batch in the furnace and forming a pool of molten glass in contact with the furnace glass contact surface, transporting the molten glass from the furnace to the bushing using a forehearth that is at least partially lined with a material substantially free of noble metal materials, discharging the molten glass from the forehearth into the bushing; and forming the molten glass into continuous fibers.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: December 8, 2015
    Assignee: OCV Intellectual Capital, LLC
    Inventors: Peter B. McGinnis, Douglas Hofmann, David J. Baker, John W. Wingert, Byron Bemis
  • Publication number: 20150133284
    Abstract: The present invention concerns glass fibre composition comprising the following oxides: Si02: 57.5-59.5 wt. % AI2O3: 17.0-20.0 wt. % CaO: 11.0-13.5 wt. % MgO: 8.5-12.5 wt. % wherein the sum of Na2O, K2O, and TiO2 is at least 0.1 wt. % and Li2O?2.0 wt. %, all amounts being expressed in weight % with respect to the total weight of the composition. It also concerns composite materials reinforced with such fibres, used in applications such as wind(a) mill blades, pressure vessels, components in the automotive, machinery, aerospace applications and such products produced therewith, and wherein the temperature difference, ?T, defined as the difference between the temperature, T3, at which the composition has a viscosity of 103 Poise and the liquidus temperature, Tliq, is at least 50° C.
    Type: Application
    Filed: April 16, 2013
    Publication date: May 14, 2015
    Inventors: Houet Yves, Laurent Dimitri
  • Patent number: 9029279
    Abstract: A glass composition including SiO2 in an amount from 74.5 to 80.0% by weight, Al2O3 in an amount from 5.0 to 9.5%>> by weight, MgO in an amount from 8.75 to 14.75% by weight, CaO in an amount from 0.0 to 3.0% by weight, Li2O in an amount from 2.0 to 3.25% by weight, Na2O in an amount from 0.0 to 2.0% by weight is provided. Glass fibers formed from the inventive composition may be used in applications that require high strength, high stiffness, and low weight. Such applications include woven fabrics for use in forming wind blades, armor plating, and aerospace structures.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: May 12, 2015
    Assignee: OCV Intellectual Capital, LLC
    Inventors: Douglas Alan Hofmann, Peter Bernard McGinnis
  • Publication number: 20150125823
    Abstract: The present application provides a glass composition comprising 10-50% by weight CaO, at least 15% and less than 50% by weight P2O5, less than 3% by weight Al2O3, less than 10% by weight Li2O, Na2O, and K2O combined, and 0-60% by weight of SrO, MgO, BaO, ZnO, or combinations thereof; dental compositions comprising the glass composition, and methods of making and using such dental compositions.
    Type: Application
    Filed: January 12, 2015
    Publication date: May 7, 2015
    Inventors: Richard P. Rusin, Kevin M. Cummings, Sumita B. Mitra, Paul A. Burgio, Tsi-Zong Tzou, David S. Arney
  • Patent number: 9012342
    Abstract: The invention relates to a melt composition for the production of man-made vitreous fibers and man-made vitreous fibers comprising the following oxides, by weight of composition: SiO2 39-43 weight % Al2O3 20-23 weight % TiO2 up to 1.5 weight % Fe2O3 5-9 weight %, preferably 5-8 weight % CaO 8-18 weight % MgO 5-7 weight % Na2O up to 10 weight %, preferably 2-7 weight % K2O up to 10 weight %, preferably 3-7 weight % P2O5 up to 2% MnO up to 2% R2O up to 10 weight % wherein the proportion of Fe(2+) is greater than 80% based on total Fe and is preferably at least 90%, more preferably at least 95% and most preferably at least 97% based on total Fe.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: April 21, 2015
    Assignee: Rockwool International A/S
    Inventors: Mette Solvang, Svend Grove-Rasmussen, Mathilde Rosendahl Foldschack
  • Patent number: 8986845
    Abstract: A ceramic composite article includes ceramic carbide fibers and a ceramic matrix in which the ceramic carbide fibers are embedded. The ceramic matrix includes a laminar structure with at least one layer of a first ceramic material and at least one layer of a second, different ceramic material.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: March 24, 2015
    Assignee: United Technologies Corporation
    Inventors: Michael A. Kmetz, Kirk C. Newton, Douglas M. Berczik, Timothy Coons
  • Patent number: 8987154
    Abstract: An R-glass composition including SiO2 in an amount from 59.0 to 64.5% by weight, Al2O3 in an amount from 14.5 to 20.5% by weight, CaO in an amount from 11.0 to 16.0% by weight, MgO in an amount from 5.5 to 11.5% by weight, Na2O in N an amount from 0.0 to 4.0% by weight, TiO2 in an amount from 0.0 to 2.0% by weight, Fe2O3 in an amount from 0.0 to 1.0% by weight, B2O3 in an amount from 0.0 to about 3.0% by weight, K2O, Fe2O3, ZrO2, and Fluorine, each of which is present in an amount from 0.0 to about 1.0% by weight, and SrO and ZnO, each of which is present in an amount from 0.0 to about 2.0% by weight. In exemplary embodiments, the glass composition does not contain lithium or boron.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: March 24, 2015
    Assignee: OCV Intellectual Capital, LLC
    Inventors: Douglas Hofmann, Peter McGinnis, John Wingert, Anne Berthereau
  • Patent number: 8969225
    Abstract: A method includes a providing a molten glass fiber core and disposing a plurality of nanoparticles that include a transition metal oxide on the molten glass fiber core at or above the softening temperature of the glass fiber core, thereby forming a nanoparticle-laden glass fiber. The plurality of nanoparticles are embedded at the surface of said glass fiber core. A method includes providing a mixture of molten glass and a plurality of nanoparticles. The plurality of nanoparticles include a transition metal. The method further includes forming nanoparticle-laden glass fibers, in which the plurality of nanoparticles are embedded throughout the glass fibers.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: March 3, 2015
    Assignee: Applied Nano Structured Soultions, LLC
    Inventors: Tushar K. Shah, Harry C. Malecki
  • Publication number: 20150057143
    Abstract: Embodiments of the present invention relate to glass compositions, glass fibers formed from such compositions, and related products. In one embodiment, a glass composition comprises 58-62 weight percent SiO2, 14-17 weight percent Al2O3, 14-17.5 weight percent CaO, and 6-9 weight percent MgO, wherein the amount of Na2O is 0.09 weight percent or less.
    Type: Application
    Filed: October 31, 2014
    Publication date: February 26, 2015
    Inventor: Hong Li
  • Publication number: 20150018194
    Abstract: The present invention relates generally to glass compositions incorporating rare earth oxides. In one embodiment, a glass composition suitable for fiber forming comprises 51-65 weight percent SiO2, 12.5-19 weight percent Al2O3, 0-16 weight percent CaO, 0-12 weight percent MgO, 0-2.5 weight percent Na2O, 0-1 weight percent K2O, 0-2 weight percent Li2O, 0-3 weight percent TiO2, 0-3 weight percent ZrO2, 0-3 weight percent B2O3, 0-3 weight percent P2O5, 0-1 weight percent Fe2O3, at least one rare earth oxide in an amount not less than 0.05 weight percent, and 0-11 weight percent total other constituents. In some embodiments, the at least one rare earth oxide comprises at least one of La2O3, Y2O3, Sc2O3, and Nd2O3. The at least one rare earth oxide is present in an amount of at least 1 weight percent in some embodiments. The at least one rare earth oxide, in some embodiments, is present in an amount of at least 3 weight percent.
    Type: Application
    Filed: July 8, 2014
    Publication date: January 15, 2015
    Inventors: Hong Li, Paul A. Westbrook
  • Patent number: 8932968
    Abstract: A biodegradable ceramic fiber composition for a high-temperature thermal insulator is provided. The composition includes: 58 to 67% by weight SiO2, 26 to 34% by weight CaO, 2 to 8% by weight MgO, 0 to 1% by weight Al2O3, 0 to 5% by weight B2O3, 0 to 3% by weight Na2O+K2O, and 1% by weight or less impurities selected from TiO2 and Fe2O3. The composition has a linear thermal contraction coefficient of 3% or less (when maintained at 1100° C. for 24 hours) and a dissolution rate constant of 700 ng/cm2·hr or more in a synthetic body fluid. When compared to known biodegradable ceramic fibers, the ceramic fiber composition also has a significantly improved solubility in a synthetic body fluid so that it can easily be dissolved and removed even when inhaled into the human lungs, thereby reducing harmfulness to the human body.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: January 13, 2015
    Assignee: KCC Corporation
    Inventors: Jin Heuk Lee, Si Moo Lee, Hong Kyeom Kim, Won Sik Jung
  • Publication number: 20150011373
    Abstract: A method of making refractory alkaline earth silicate fibres from a melt, including the use as an intended component of alkali metal to improve the mechanical properties of the fibre in comparison with a fibre free of alkali metal.
    Type: Application
    Filed: March 24, 2014
    Publication date: January 8, 2015
    Applicant: THE MORGAN CRUCIBLE COMPANY PLC
    Inventors: Craig John FREEMAN, Gary Anthony JUBB
  • Publication number: 20150011374
    Abstract: There is provided a glass fiber comprising the SiO2 content is 57.0 to 63.0% by weight; the Al2O3 content is 19.0 to 23.0% by weight; the MgO content is 10.0 to 15.0% by weight; the CaO content is 4.0 to 11.0% by weight; and the total content of SiO2, Al2O3, MgO and CaO is 99.5% by weight or higher based on the total weight.
    Type: Application
    Filed: August 22, 2014
    Publication date: January 8, 2015
    Applicant: NITTO BOSEKI CO., LTD.
    Inventors: Takashi Nonaka, Hiroshi Kanno, Takamichi Inaba
  • Patent number: 8912107
    Abstract: A composition for preparing high-performance glass fiber by tank furnace production comprising in preferred percentage by weight: 57.5˜62.5% of SiO2, 14.5˜17.5% of Al2O3, 13.5˜17.5% of CaO, 6.5˜8.5% of MgO, 0.05˜0.6% of Li2O, 0.1˜2% of B2O3, 0.1˜2% of TiO2, 0.1˜2% of Na2O, 0.1˜1% of K2O and 0.1˜1% of Fe2O3 and (CaO+MgO)/MgO>3, with the content of at least one of the three components, A2O, B2O3 and TlO2 higher than 0.5%, with the composition yielding glass fiber having improved mechanical property, causing the melting and clarification of glass and forming performance of fiber close to those of boron-free E glass, and facilitating industrial mass production by tank furnace processes with manufacturing costs close to those of conventional E glass.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: December 16, 2014
    Assignee: Jushi Group Co., Ltd.
    Inventors: Yuqiang Zhang, Guorong Cao, Bing Zhang, Lin Zhang, Wenzhong Xing, Guijiang Gu
  • Patent number: 8901020
    Abstract: Embodiments of the present invention relate to glass compositions, glass fibers formed from such compositions, and related products. In one embodiment, a glass composition comprises 58-62 weight percent SiO2, 14-17 weight percent Al2O3, 14-17.5 weight percent CaO, and 6-9 weight percent MgO, wherein the amount of Na2O is 0.09 weight percent or less.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: December 2, 2014
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Hong Li
  • Patent number: 8871662
    Abstract: The subject of the invention is a mineral wool, the glass fibers of which have a chemical composition substantially free of boron oxide and comprising the following constituents in the limits defined below, expressed in percentages by weight: 60 to 75 SiO2; 0 to 4 Al2O3; 17 to 22 Na2O; 5 to 15 CaO; 0 to 2 Fe2O3; and 0 to 3 P2O5.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: October 28, 2014
    Assignee: Saint-Gobain Isover
    Inventors: Emmanuel Lecomte, Yannick Lefrere
  • Patent number: 8841222
    Abstract: There is provided a glass fiber comprising the SiO2 content is 57.0 to 63.0% by weight; the Al2O3 content is 19.0 to 23.0% by weight; the MgO content is 10.0 to 15.0% by weight; the CaO content is 4.0 to 11.0% by weight; and the total content of SiO2, Al2O3, MgO and CaO is 99.5% by weight or higher based on the total weight.
    Type: Grant
    Filed: May 30, 2011
    Date of Patent: September 23, 2014
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Takashi Nonaka, Hiroshi Kanno, Takamichi Inaba
  • Publication number: 20140273702
    Abstract: An inorganic fiber containing silica and magnesia as the major fiber components and which further includes an intended iron oxide additive to improve the dimensional stability of the fiber. The inorganic fiber exhibits good thermal insulation performance at 1400° C. and greater, retains mechanical integrity after exposure to the use temperature, and which remains non-durable in physiological fluids. Also provided are thermal insulation product forms comprising a plurality of the inorganic fibers, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: UNIFRAX I LLC
    Inventors: Bruce K. Zoitos, Michael J. Andrejcak
  • Patent number: 8822359
    Abstract: The invention relates to mineral fibers formed of a composition comprising the following oxides, by weight of composition: —SiO235 to 43.5% —Al2O3 18 to 22% —Fe2O3 9 to 16% —CaO 8 to 17% —MgO 7 to 15% —Na2O+K2O 1 to 5% —MnO up to 2%.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: September 2, 2014
    Assignee: Rockwool International A/S
    Inventors: Mette Solvang, Eva Ravn Nielsen, Dorthe Lybye
  • Publication number: 20140235424
    Abstract: Glass compositions are provided that are useful in a variety of applications including, for example, electronics applications, reinforcement applications, and others. Some embodiments of glass compositions can provide desirable dielectric constants, desirable dissipation factors, and/or desirable mechanical properties while also having desirable fiber forming properties.
    Type: Application
    Filed: March 27, 2014
    Publication date: August 21, 2014
    Inventor: Hong Li
  • Publication number: 20140227143
    Abstract: A mat material includes glass fibers. The glass fibers include about 52% by weight to about 66% by weight of SiO2, about 9% by weight to about 26% by weight of Al2O2, about 15% by weight to about 27% by weight of CaO, 0% by weight to about 9% by weight of MgO, 0% by weight to about 4% by weight of TiO2, 0% by weight to about 5% by weight of ZnO, and 0% by weight to about 2% by weight of Na2O and K2O in total. The glass fibers are substantially free of B2O3.
    Type: Application
    Filed: April 16, 2014
    Publication date: August 14, 2014
    Applicant: IBIDEN CO., LTD.
    Inventor: Akihito NISHI
  • Patent number: 8802997
    Abstract: Disclosed is a PCB having multiple layers of heavy copper. A prepreg having a nonwoven glass web substrate is used alone or together with another prepreg having a glass fabric substrate so that the space between heavy copper, which is comparable to a thick film, can be filled efficiently without creating voids. The PCB includes a copper clad laminate having first copper patterned on one surface or both surfaces of a core substrate; at least one first prepreg laminated on one surface or both surfaces of the copper clad laminate, nonwoven glass web being used as the substrate of the first prepreg; at least one second prepreg laminated on one surface or both surfaces of the first prepreg, glass fabric being used as a substrate of the second prepreg; and second copper laminated on one surface or both surfaces of the second prepreg.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: August 12, 2014
    Assignee: Doosan Corporation
    Inventors: Jeong Don Kwon, Seung Min Hong, Ju Ho Shin
  • Publication number: 20140220338
    Abstract: Biocompatible and resorbable melt derived glass compositions which include: SiO2 60-70 weight-%, Na2O 5-20 weight-%, CaO 5-25 weight-%, MgO 0-10 weight-%, P2O5 0.5-3.0 weight-%, B2O3 0-15 weight-%, Al2O3 0-5 weight-%, and which contain less than 0.05 weight-% potassium. Biocompatible and resorbable glass fibres manufactured from these glass compositions, medical devices containing fibres of the invention, the use of these compositions for the manufacture of glass fibre and the use of the fibres for the manufacture of medical devices are also disclosed.
    Type: Application
    Filed: April 4, 2014
    Publication date: August 7, 2014
    Applicant: PURAC BIOCHEM BV
    Inventors: Timo LEHTONEN, Jukka TUOMINEN, Fredrik OLLILA
  • Publication number: 20140170921
    Abstract: Provided is an inorganic fiber containing silica and magnesia as the major fiber components which further includes a phosphate additive to the melt of fiber ingredients, or as a coating on the surfaces of the fiber, or both. The inorganic fiber exhibits improved thermal performance properties and is non-durable in physiological fluids. Also provided are methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 19, 2014
    Applicant: UNIFRAX I LLC
    Inventors: Bruce K. Zoitos, Michael J. Andrejack
  • Patent number: 8728964
    Abstract: The present disclosure relates to a glass composition having a low thermal expansion coefficient, specifically, a glass composition comprising about 55 to less than 64 weight percent of silicon oxide, about 15 to about 30 weight percent of aluminum oxide, about 5 to about 15 weight percent of magnesium oxide, about 3 to about 10 weight percent boron oxide, about 0 to about 11 weight percent calcium oxide, and about 0 to about 2 weight percent of alkali oxide, the remainder being trace compounds of less than about 1 weight percent, is provided. Glass fibers and composite articles formed therefrom are also provided.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: May 20, 2014
    Assignee: AGY Holding Corp.
    Inventors: Sudhendra V. Hublikar, Robert L. Hausrath, Anthony V. Longobardo
  • Patent number: RE45450
    Abstract: A method for producing a glass wool molded product includes the steps of processing a glass material into fibers so as to obtain a glass wool, gathering such glass wools to form a glass wool mat, and subjecting the glass wool mat to press molding, wherein the above described press molding is carried out, while supplying water so that the water content of the above described glass wool mat becomes 0.1% to 7.0% by mass, and while maintaining a temperature between 250° C. and 450° C.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: April 7, 2015
    Assignees: Mag-Isover K.K., Panasonic Corporation
    Inventor: Toru Murakami