Fibers Patents (Class 501/35)
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Publication number: 20120214660Abstract: A glass composition is provided for the production of high temperature glass fibers with oxides comprising 1% to 15% Fe2O3+FeO as a fluidizer to lower liquidus temperature and the fiberizing temperature of a mix of high temperature oxides. The glass composition has therein an appropriate content of high temperature oxides to produce glass fiber with high temperature limits and high burn-through properties.Type: ApplicationFiled: June 6, 2011Publication date: August 23, 2012Inventor: Albert LEWIS
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Publication number: 20120193223Abstract: Solid oxide electrolysis cell (SOEC) stack obtainable by a process comprising the use of a glass sealant with composition 50 to 70 wt % SiO2, 0 to 20 wt % Al2O3, 10 to 50 wt % CaO, 0 to 10 wt % MgO, 0 to 2 wt % (Na2o 1K2O), 0 to 10 wt % b2O3, and 0 to 5 wt % of functional elements selected from TiO2, ZrO2, ZrO2, F, P2O5, Mo03, FeO3, MnO 2, La—Sr—Mn—O perovskite (LSM) and combinations thereof. Preferably, the sealant is a sheet of E-glass fibres with a composition in wt % of 52-56 SiO2, 12-16AL2O3, 16-25 CaO, 0-6MgO, 0-2 Na2+K2O, 0-10 B2O3, 0-1.5 TiO2, O-1F.Type: ApplicationFiled: October 5, 2010Publication date: August 2, 2012Applicant: Topsoe Fuel CellInventors: Jens Ulrik Nielsen, Jørgen Gutzon Larsen
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Publication number: 20120190529Abstract: A glass composition useful in preparing fiberglass comprises 12 to 25 weight % CaO; 12 to 16 weight % Al2O3; 52 to 62 weight % SiO2; 0.05 to 0.8 Fe2O3; and greater than 2 up to about 8 weight % alkali metal oxide.Type: ApplicationFiled: March 7, 2012Publication date: July 26, 2012Inventors: Jeffrey Shock, Elam Leed, Jonathan McCann
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Publication number: 20120178610Abstract: 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: ApplicationFiled: January 11, 2012Publication date: July 12, 2012Inventors: SUDHENDRA V. HUBLIKAR, ROBERT L. HAUSRATH, ANTHONY V. LONGOBARDO
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Publication number: 20120172190Abstract: 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: ApplicationFiled: February 3, 2012Publication date: July 5, 2012Inventors: Hong Li, James C. Watson
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Publication number: 20120163987Abstract: Glass compositions and high-modulus, and high-strength glass fibers made therefrom, being capable of economical, continuous processing and suitable for the production of high-strength and/or high stiffness, low-weight composites, such as windturbine blades, the glass composition comprises the following constituents in the limits defined below, expressed as weight percentages: between about 56 to about 61 weight percent SiO2; between about 16 to about 23 weight percent Al2O3, wherein the weight percent ratio of SiO2/Al2O3 is between about 2 to about 4; between about 8 to about 12 weight percent MgO; between about 6 to about 10 weight percent CaO, wherein the weight percent ratio of MgO/CaO is between about 0.7 to about 1.5; between about 0 to about 2 weight percent Na2O; less than about 1 weight percent Li2O; and total residual transition metal oxides of less than about 2 weight percent.Type: ApplicationFiled: December 22, 2010Publication date: June 28, 2012Applicant: AGY HOLDING CORPORATIONInventors: Robert L. Hausrath, Anthony V. Longobardo
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Publication number: 20120135849Abstract: 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: ApplicationFiled: August 4, 2010Publication date: May 31, 2012Applicant: OCV-Intellectual Capital, LLCInventors: Douglas Hoffman, Peter McGinnis, John Wingert, Anne Berthereau
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Publication number: 20120121975Abstract: Compositions including glass fibers with a high surface atomic percentage of oxygen bonded to silicon wherein the fibers form at least part of a battery separator or other battery component.Type: ApplicationFiled: November 23, 2011Publication date: May 17, 2012Applicant: HOLLINGSWORTH & VOSE COMPANYInventors: Mohan Rajaram, George C. Zguris
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Publication number: 20120114990Abstract: Provided are a secondary battery, a battery module, and a battery pack, which have improved safety. Particularly, since a bulletproof material is disposed on the inside and/or the outside of an exterior part, even when a conductive needle-shaped member penetrates a secondary battery, heating, burning, discharge of evaporated electrolyte, and electrical contact between the needle-shaped member and an electrode can be prevented, thereby improving safety of the secondary battery, the battery module, and the battery pack.Type: ApplicationFiled: January 4, 2012Publication date: May 10, 2012Inventors: Chang Moon Jeong, Chang Ho Kim, Seung Don Choi, Min Chul Jang, Seung Taek Hong, In Cur Shin, Nan Ji Yun, Dal Mo Kang, Yo Jin Kim, Yong Kyu Ju, You Rim Yoon, Sang Yoon Jeong, Seung Su Cho, Soul Gie Hong, Jun Seok Choi
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Patent number: 8173560Abstract: The invention relates to a glass strand, the chemical composition of which is substantially free of boron oxide and comprises the following constituents, in the limits defined below expressed as percentages by weight: SiO2 55 to 65 Al2O3 ?9 to 16 CaO 15 to 26 MgO 1 to 5 BaO + SrO 0.5 to 5?? Na2O + K2O + Li2 O 0 to 2 TiO2 0 to 1 ZnO 0 to 2 ZrO2 0 to 2. It also relates to composites comprising such strands.Type: GrantFiled: December 19, 2007Date of Patent: May 8, 2012Assignee: Saint-Gobain Technical Fabrics EuropeInventors: Anne Berthereau, Emmanuel Lecomte
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Publication number: 20120094122Abstract: Provided herein are novel nanoporous glass fibers, and methods of preparing and using such fibers. In some embodiments, articles are made from particular glass starting materials, such as soda-lime phosphosilicate glass fabricated by melt-quench methods. The articles include nanoporous fibers that can be used alone, or sewn, woven, bundled, and otherwise incorporated to form nanoporous articles, including bioactive articles.Type: ApplicationFiled: October 14, 2011Publication date: April 19, 2012Applicant: LEHIGH UNIVERSITYInventors: Hassan M.M. Moawad, Himanshu Jain
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Publication number: 20120095149Abstract: A glass composition for a glass fiber includes, in terms of oxides by mass %, 45 to 65% of SiO2, 10 to 20% of Al2O3, 13 to 25% of B2O3, 5.5 to 9% of MgO, 0 to 10% of CaO, 0 to 1% of Li2O+Na2O+K2O, SrO, and BaO.Type: ApplicationFiled: November 16, 2009Publication date: April 19, 2012Inventors: Kaori Sawanoi, Jiro Abe, Toshikatsu Tanaka
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Publication number: 20120064788Abstract: The present invention relates to fiber glass strands, yarns, fabrics, composites, prepregs, laminates, fiber-metal laminates, and other products incorporating glass fibers formed from glass compositions. The glass fibers, in some embodiments, are incorporated into composites that can be used in reinforcement applications. Glass fibers formed from some embodiments of the glass compositions can have certain desirable properties that can include, for example, desirable electrical properties (e.g. low Dk) or desirable mechanical properties (e.g., specific strength).Type: ApplicationFiled: September 14, 2011Publication date: March 15, 2012Inventors: James Carl Peters, Juan Camilo Serrano, Hong Li, Cheryl A. Richards, Steven Joel Parks
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Publication number: 20120058878Abstract: 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: ApplicationFiled: September 9, 2011Publication date: March 8, 2012Inventors: Hong Li, Cheryl A. Richards
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Publication number: 20120053043Abstract: A method for producing a glass fiber, through longitudinally drawing a preform in a drawing kiln, wherein cooling the glass fiber is performed in at least three time periods, wherein the glass fiber is exposed to a first time based cooling rate above a crystallization temperature range, to a second time based cooling rate that is greater than the first time based cooling rate within the crystallization temperature range, and to a third time based cooling rate which is smaller than the second time based cooling rate below the crystallization temperature range.Type: ApplicationFiled: May 17, 2010Publication date: March 1, 2012Applicant: J-FIBER GMBHInventors: Wolfgang Hämmerle, Lothar Brehm, Matthias Auth
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Patent number: 8093164Abstract: The present invention relates to a high-temperature resistant inorganic fiber which is based on silica and has improved mechanical properties, a process for producing it and also specific uses thereof and products derived therefrom. The fiber of the invention has the following composition: 81-94% by weight of SiO2, 6-19% by weight of Al2O3, 0-12% by weight of ZrO2, 0-12% by weight of TiO2, 0-3% by weight of Na2O and not more than 1.5% by weight of further components.Type: GrantFiled: July 7, 2008Date of Patent: January 10, 2012Assignee: Belchem Fiber Materials GmbHInventors: Robin Richter, Folker Steden, Sven Lehr
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Patent number: 8088701Abstract: Melt formed inorganic fibers are disclosed having the composition:— Al2O3 5-90 mol % K2O 5-90 mol % SiO2 5-90 mol % in which SiO2+Al2O3+K2O>=50 mol %. Fibers of like composition having K2O greater than 12 mol % are also encompassed.Type: GrantFiled: November 23, 2007Date of Patent: January 3, 2012Assignee: The Morgan Crucible Company PLCInventor: Gary Anthony Jubb
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Patent number: 8080490Abstract: The invention relates to an antimicrobial phosphate glass having the following composition in percent by weight on an oxide basis: P2O5>66-80 percent by weight; SO30-40 percent by weight; B203 0-1 percent by weight; Al2O3>6.2-10 percent by weight; SiO2 0-10 percent by weight; Na2O>9-20 percent by weight; CaO 0-25 percent by weight; MgO 0-15 percent by weight; SrO 0-15 percent by weight; BaO 0-15 percent by weight; ZnO>0-25 percent by weight; Ag2O 0-5 percent by weight; CuO 0-10 percent by weight; GeO2 0-10 percent by weight; TeO2 0-15 percent by weight; Cr2O3 0-10 percent by weight; J 0-10 percent by weight; F 0-3 percent by weight.Type: GrantFiled: February 20, 2004Date of Patent: December 20, 2011Assignee: Schott AGInventors: Jörg Hinrich Fechner, José Zimmer, Karine Seneschal
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Publication number: 20110287324Abstract: A composition including glass fibers with a surface atomic concentration of oxygen in sp3 bonds with silicon of at least about 34% wherein the fibers are formed into a battery separator.Type: ApplicationFiled: August 5, 2010Publication date: November 24, 2011Applicant: Hollingsworth & Vose CompanyInventors: Mohan Rajaram, George C. Zguris
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Patent number: 8056370Abstract: Methods of melt spinning to make amorphous and ceramic materials.Type: GrantFiled: August 2, 2002Date of Patent: November 15, 2011Assignee: 3M Innovative Properties CompanyInventors: Anatoly Z. Rosenflanz, Ahmet Celikkaya, Thomas J. Anderson
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Publication number: 20110274903Abstract: Embodiments of the invention may include one or more high-density textile fibers with a density from about 1 to about 11 g/mL. Some embodiments may include fabrics and/or garments made from such fibers. Embodiments comprising garments can include, for instance, exercise aids for providing extra mass to the wearer. Other embodiments can comprise, without limitation, building materials, safety equipment, armor, body armor, protective apparel, marine repair materials, marine protective devices, boat hulls, vehicle chassis, or blast-resistant materials.Type: ApplicationFiled: May 7, 2011Publication date: November 10, 2011Inventors: Charlene Stuart, Patricia Dorton
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Patent number: 8037719Abstract: Basalt filament is manufactured in such a manner that the fiber diameter can be controlled and the filament is not severed during the winding step. A network former and a glass modifier are formed and maintained with respect to basalt rock ore, and the crystallization and binding of basalt fiber are inhibited, the heat-resistance property of basalt fiber is greatly improved from the conventional 750° C. to 850 or 900° C., and significant cost reduction is achieved over conventional products. The method includes the steps of: grinding basalt rock as a material; washing a resultant ground rock; melting the ground rock that has been washed; transforming a molten product into fiber; and drawing the fiber in an aligned manner, and winding it. The temperature of the molten product in the melting step is 1400 to 1650° C., and log ? is 2.15 to 2.35 dPa·s and preferably 2.2 to 2.3 dPa·s, where ? is the viscosity of the molten product.Type: GrantFiled: June 19, 2006Date of Patent: October 18, 2011Assignees: Toyota Jidosha Kabushiki Kaisha, Nakagawa Sangyo Co., Ltd.Inventors: Sumio Kamiya, Hironori Sasaki, Noriaki Nakagawa
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Patent number: 8026190Abstract: Insulating element from mineral fibers for shipbuilding with an insulating element in form of a plate or roll felt for shipbuilding the composition of the mineral fibers of the insulating element points an alkali/alkaline-earth mass ratio of the fiber structure of the insulating element is determined by an average geometrical fiber diameter of ?4 ?m and a surface weight of 0.8 through 4.3 kg/m2 and a binding agent portion above 0.5 until 4 weight %.Type: GrantFiled: September 28, 2010Date of Patent: September 27, 2011Assignee: Saint-Gobain IsoverInventors: Horst Keller, Ina Bruer, Gerald Amannt, Jean-Luc Bernard
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Patent number: 8003562Abstract: A silica base composite photocatalyst that has appropriate water purification capability, inhibiting precipitation of metal oxides; and a process for producing the same. The silica base composite photocatalyst is one composed mainly of a composite oxide phase consisting of an oxide phase (first phase) composed mainly of silica component and a titania phase (second phase) wherein the ratio of presence of the second phase increases aslope toward the surface layer, characterized in that at least one metal oxide selected from among strontium titanate and barium titanate is contained in the second phase.Type: GrantFiled: September 14, 2007Date of Patent: August 23, 2011Assignee: Ube Industries, Ltd.Inventors: Hiroyuki Yamaoka, Yoshikatsu Harada, Teruaki Fujii, Shinichirou Otani, Tadashi Matsunaga
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Publication number: 20110190112Abstract: The present invention relates to an aqueous anti-dusting formulation for use in combination with a binder in the manufacture of fibre wool insulation, the formula comprising: a) oil; b) polyvinyl alcohol; and c) water. The invention further relates to a method for preparing a glass or mineral fibre product with the anti-dusting formulations and to products of the process.Type: ApplicationFiled: February 1, 2011Publication date: August 4, 2011Applicant: Walker Industries Holdings LimitedInventor: Laurence Anthony SINNIGE
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Patent number: 7989375Abstract: An object is to provide a readily fusible glass fiber composition that can alleviate environmental problem and reduce raw material cost by decreasing boron content, and that can facilitate the manufacturing of fine-count glass filament. A glass fiber composition of the present invention is an oxide glass composition, and has compositions of 0.01 to 3% of P2O5, 52 to 62% of SiO2, 10 to 16% of Al2O3, 0 to 8% of B2O3, 0 to 5% of MgO, 16 to 30% of CaO, and 0 to 2% of R2O(R?Li+N+K), which are in terms of oxide represented in mass percentage.Type: GrantFiled: July 3, 2006Date of Patent: August 2, 2011Assignee: Nippon Electric Glass Co., Ltd.Inventor: Toshikatu Tanaka
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Publication number: 20110172077Abstract: Disclosed are glass compositions containing Beryllia in addition to various proportions of Silica, Alumina, Calcium, Magnesia, Sodium, Potassium, Iron, Titania, Zirconia, Manganese and/or Phosphorous. Fibers were produced from the disclosed compositions using standard glass processing equipment. These fibers yielded high temperature fibers having low density, high strength, high modulus, excellent glass surfaces requiring very little bonding material to hold the fibers together. Bio solubility is preferably promoted by ensuring that only trace quantities of alumina are present. Fibers having those properties are particularly suitable for producing high temperature glass fiber insulation for use in aircraft and other vehicles.Type: ApplicationFiled: November 18, 2010Publication date: July 14, 2011Inventor: Albert Lewis
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Patent number: 7977263Abstract: A glass composition is provided for the production of high temperature glass fibers with oxides comprising 1% to 15% Fe2O3+FeO as a fluidizer to lower liquidous temperature and the fiberizing temperature of a mix of high temperature oxides. The glass composition has therein an appropriate content of high temperature oxides to produce glass fiber with high temperature limits and high burn-through properties.Type: GrantFiled: May 26, 2006Date of Patent: July 12, 2011Assignee: Glass IncorporatedInventor: Albert Lewis
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Publication number: 20110159219Abstract: The present invention relates to a silicate glass article, such as a glass container, with a modified surface region. The modified surface has, among other advantageous properties, an improved chemical durability, an increased hardness, and/or an increased thermal stability, such as thermal shock resistance. In particular the present invention relates to a process for modifying a surface region of a silicate glass article by heat-treatment at Tg in a reducing gas atmosphere such as H2/N2 (1/99). The concentration of network-modifying cations (NMC) in the surface region of the silicate glass article is lower than in the bulk part, and the composition in the surface region of the network-modifying cations is a consequence of an inward diffusion.Type: ApplicationFiled: September 3, 2009Publication date: June 30, 2011Applicant: AALBORG UNIVERSITETInventors: Yuanzheng Yue, Morten Mattrup Smedskjaer
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Publication number: 20110129179Abstract: A multicomponent glass fiber having a doping concentration of 55%-85% (wt./wt.) of a rare-earth oxide is presented. The rare-earth oxide is selected from the group comprising: Pr2O3, Nd2O3, Pm2O3, Sm2O3, Eu2O3, Gd2O3, Tb2O3, Dy2O3, Ho2O3; Er2O3, Tm2O3, Yb2O3, La2O3, Ga2O3, Ce2O3, and Lu2O3. Additionally, an all-fiber isolator using highly rare-earth oxide doped fibers is disclosed.Type: ApplicationFiled: December 1, 2009Publication date: June 2, 2011Applicant: ADVALUE PHOTONICS, INC.Inventor: SHIBIN JIANG
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Publication number: 20110053754Abstract: A glass composition useful in preparing fiberglass comprises 12 to 25 weight % CaO; 12 to 16 weight % Al2O3; 52 to 62 weight % SiO2; 0.05 to 0.8 Fe2O3; and greater than 2 up to about 8 weight % alkali metal oxide.Type: ApplicationFiled: September 1, 2009Publication date: March 3, 2011Inventors: Jeffrey Shock, Elam Leed, Jonathan McCann
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Publication number: 20110042129Abstract: A glass fiber having a low dielectric constant and low dielectric loss tangent consists essentially of by weight, as a glass composition, 52 to 60% of SiO2, 11 to 16% of Al2O3, 20 to 30% of B2O3, and 4 to 8% of CaO, and substantially no MgO, substantially no Li2O, substantially no Na2O, substantially no K2O, and substantially no Ti2O. The glass fiber also may contain up to 2% F2 by weight. The glass fiber is ideal for use as reinforcement for printed wiring boards, and has excellent dielectric properties at frequencies of about 18 GHz or higher.Type: ApplicationFiled: October 26, 2007Publication date: February 24, 2011Applicant: AGY HOLDING CORP.Inventors: Douglas S. Boessneck, J. Ronald Gonterman, Oleg A. Prokhorenko
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Publication number: 20110039681Abstract: The invention relates to glass strands especially for the production of composites having an organic and/or inorganic matrix, the composition of which strands comprises the following constituents in the limits defined below, expressed as percentages by weight: SiO2 50-65% Al2O3 12-23% SiO2 + Al2O3 ??>79% CaO ?1-10% MgO ?6-12% Li2O ?1-3%, preferably 1-2% BaO + SrO ?0-3% B2O3 ?0-3% TiO2 ?0-3% Na2O + K2O ??<2% F2 ?0-1% Fe2O3 ??<1%. These strands are made of a glass offering an excellent compromise between its mechanical properties, represented by the specific Young's modulus, and its melting and fiberizing conditions.Type: ApplicationFiled: April 22, 2009Publication date: February 17, 2011Applicant: SAINT-GOBAIN TECHNICAL FABRICS EUROPEInventor: Emmanuel Lecomte
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Patent number: 7887917Abstract: Provided are inorganic fibers containing calcium and alumina as the major fiber components. According to certain embodiments, the inorganic fibers containing calcia and alumina are provided with a coating of a phosphorous containing compound on at least a portion of the fiber surfaces. Also provided are methods of preparing the coated and non-coated inorganic fibers and of thermally insulating articles using thermal insulation comprising the inorganic fibers.Type: GrantFiled: June 30, 2006Date of Patent: February 15, 2011Assignee: Unifrax I LLCInventors: Bruce K. Zoitos, Michael J. Andrejcak, Paul M. Boymel
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Patent number: 7887929Abstract: A method of manufacturing a gas turbine engine component includes the steps of forming a ceramic workpiece having oriented ceramic reinforcement, and severing the ceramic workpiece to produce a ceramic member having a desired orientation of the ceramic reinforcement. The ceramic member is then attached to a turbine engine component as a thermal barrier layer for the turbine engine component.Type: GrantFiled: August 28, 2007Date of Patent: February 15, 2011Assignee: United Technologies CorporationInventors: Christopher W. Strock, Susan M. Tholen
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Patent number: 7875566Abstract: A method of making refractory alkaline earth silicate fibers from a melt, including the use as an intended component of alkali metal to improve the mechanical properties of the fiber in comparison with a fiber free of alkali metal.Type: GrantFiled: October 31, 2005Date of Patent: January 25, 2011Assignee: The Morgan Crucible Company PLCInventors: Craig John Freeman, Gary Anthony Jubb
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Publication number: 20110003678Abstract: Glass batch compositions for the formation of high-modulus, and high-strength glass fibers as well as fibers suitable for use as textile and reinforcements are disclosed. Fibers formed of the composition are especially suitable for use in high-strength, low-weight applications such as windmill blades and high strength and modulus applications where strength and stiffness are required in the composite. The glass composition is up to about 70.5 weight % SiO2, about 24.5 weight % Al2O3, about 22 weight % alkaline earth oxides and may include small amounts of alkali metal oxides and ZrO2. Fiberglass-reinforced composite articles such as windmill blades are also disclosed.Type: ApplicationFiled: September 16, 2010Publication date: January 6, 2011Inventors: Douglas A. Hofmann, Peter B. McGinnis
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Patent number: 7846371Abstract: 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: GrantFiled: October 24, 2005Date of Patent: December 7, 2010Assignee: Mag Co., Ltd.Inventor: Toru Murakami
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Patent number: 7842631Abstract: Provided are glass compositions with higher softening point temperatures than conventional glasses, which improve flame penetration test performance of flexible duct insulation. In particular, the glass compositions have a softening point in the range of about 1230-1276° F., a log-3 viscosity temperature in the range of about 1802-1879° F., and a temperature difference between log-3 viscosity and liquidus temperatures of at least 150° F. These glasses are specially formulated to increase softening point while only minimally increasing log-3 viscosity temperature, so as to allow fiber insulation manufacturing without requiring increased energy use.Type: GrantFiled: October 4, 2007Date of Patent: November 30, 2010Assignee: Johns ManvilleInventors: Phillip James Tucker, Elam Leed
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Publication number: 20100298110Abstract: The present invention relates to a high-temperature resistant inorganic fiber which is based on silica and has improved mechanical properties, a process for producing it and also specific uses thereof and products derived therefrom. The fiber of the invention has the following composition: 81-94% by weight of SiO2, 6-19% by weight of Al2O3, 0-12% by weight of ZrO2, 0-12% by weight of TiO2, 0-3% by weight of Na2O and not more than 1.5% by weight of further components.Type: ApplicationFiled: July 7, 2008Publication date: November 25, 2010Applicant: BELCHEM FIBER MATERIALS GMBHInventors: Robin Richter, Folker Steden, Sven Lehr
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Patent number: 7829490Abstract: Glass compositions are provided that are useful in electronic applications, e.g., as reinforcements in printed circuit board substrates. Reduced dielectric constants are provided relative to E-glass, and fiber forming properties are provided that are more commercially practical than D-glass.Type: GrantFiled: December 14, 2006Date of Patent: November 9, 2010Assignee: PPG Industries Ohio, Inc.Inventors: Hong Li, Cheryl A. Richards
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Patent number: 7823417Abstract: A method of forming high strength glass fibers in a refractory lined glass melter is disclosed. The refractory lined melter is suited to the batch compositions disclosed for the formation high modulus, and high-strength glass fibers. The glass composition for use in the method of the present invention is up to about 70.5 Weight % SiO2, 24.5 weight % Al2O3, 22 weight % alkaline earth oxides and may include small amounts of alkali metal oxides and ZrO2. Oxide based refractories included alumina, chromic oxide, silica, alumina-silica, zircon, zirconia-alumina-silica and combinations thereof. By using oxide based refractory lined furnaces the cost of production of glass fibers is substantially reduced in comparison with the cost of fibers using a platinum lined melting furnace. Fibers formed by the present invention are also disclosed.Type: GrantFiled: November 4, 2005Date of Patent: November 2, 2010Assignee: OCV Intellectual Capital, LLCInventors: Douglas A. Hoffmann, Peter B. McGinnis
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Publication number: 20100266806Abstract: One exemplary embodiment of an anti-intrusion beam for a vehicle door assembly may include a composite material. The composite material includes a fiber reinforcement with multiple fibers. The fibers may be oriented at an angle ranging between about 35 and 55 degrees when measured with respect to a lengthwise dimension of the anti-intrusion beam.Type: ApplicationFiled: April 21, 2009Publication date: October 21, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventor: John N. Owens
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Patent number: 7811377Abstract: A substantially white powder for use as a filler and/or extender derived from by-products of manufacturing vitreous low alkali, low iron glass fibers, and a method for producing the powder. The filler has very low alkalinity and by virtue of its being essentially free of crystalline silica is non-hazardous to health and therefore safe for consumer-based and industrial-based uses.Type: GrantFiled: August 26, 2009Date of Patent: October 12, 2010Assignee: Albacem LLCInventors: Raymond T. Hemmings, Robert D. Nelson, Philip L. Graves, Bruce J. Cornelius
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Patent number: 7811954Abstract: The invention relates to glass reinforcement strands, the composition of which comprises the following constituents in the limits defined below, expressed as percentages by weight: 59 to 63% SiO2; 10 to 16% Al2O3; 16 to 23% CaO; 1 to 3.2% MgO; 0 to 2% Na2O+K2O+Li2O; 0 to 1% TiO2; 0.1 to 1.8% B2O3; 0 to 0.5% Li2O; 0 to 0.4% ZnO; 0 to 1% MnO; and 0 to 0.5% F. These strands have improved properties in terms of mechanical strength, acid resistance and high-temperature resistance for a low-cost composition. The invention also relates to a process for producing the said strands and to the composition allowing them to be produced.Type: GrantFiled: March 14, 2005Date of Patent: October 12, 2010Assignee: Saint-Gobain Technical fabrics EuropeInventors: Anne Berthereau, Emmanuel Lecomte, Sophie Creux
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Patent number: 7807594Abstract: A glass fiber composition comprises about 33-47 weight % SiO2; about 18-28 weight % Al2O3; about 5-15 weight % Fe2O3; greater than or equal to about 2 weight % and less than 10 weight % R2O; about 8-30 weight % CaO; and less than 4 weight % MgO; wherein R2O represents alkali metal oxides. Preferably, the glass fiber composition has a liquidus temperature of less than 2350° F.; and a viscosity at a liquidus temperature of the glass fiber composition of greater than 500 poise; and fire resistant glass fiber formed from the glass fiber composition has a biodissolution rate of greater than 50 ng/cm2/hr.Type: GrantFiled: August 15, 2007Date of Patent: October 5, 2010Assignee: Johns ManvilleInventor: Elam A. Leed
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Publication number: 20100248928Abstract: The invention relates to reinforcing glass strands, the composition of which comprises the following constituents within the limits defined below expressed as percentages by weight: SiO2 62-72% Al2O3 ?2-10% CaO ?7-20% MgO 1-7% Na2O + K2O + Li2O ??10-14.5% Li2O 0-2% BaO + SrO + ZnO 0-4% B2O3 0-4% F2 0-2% As2O3 ??0-0.15% These strands are composed of a low-cost glass offering an excellent compromise between the mechanical properties represented by the tensile strength and the fiberizing conditions. The invention also relates to the composites based on organic and/or inorganic material(s) and the aforementioned glass strands.Type: ApplicationFiled: October 30, 2008Publication date: September 30, 2010Applicant: SAINT-GOBAIN TECHNICAL FABRICS EUROPEInventors: Anne Berthereau, Emmanuelle Picard, Jerome Lalande
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Patent number: 7803731Abstract: A glass fiber composition comprises about 52-65 weight % SiO2; less than or equal to 4 weight % Al2O3; about 7-16 weight % Fe2O3; greater than 6 weight % and less than or equal to about 14 weight % R2O; about 6-25 weight % CaO; less than or equal to 10 weight % MgO; and about 10-25 weight % RO; wherein R2O represents alkali metal oxides and RO represents alkaline earth metal oxides. Preferably, the glass fiber composition has a liquidus temperature of less than 2350° F.; and a viscosity at a liquidus temperature of the glass fiber composition of greater than 500 poise; and fire resistant glass fiber formed from the glass fiber composition has a biodissolution rate of greater than 50 ng/cm2/hr.Type: GrantFiled: August 15, 2007Date of Patent: September 28, 2010Assignee: Johns ManvilleInventor: Elam A. Leed
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Patent number: 7803729Abstract: Insulating element from mineral fibers for shipbuilding with an insulating element in form of a plate or roll felt for shipbuilding the composition of the mineral fibers of the insulating element points an alkali/alkaline-earth mass ratio of the fiber structure of the insulating element is determined by an average geometrical fiber diameter of ?4 ?m and a surface weight of 0.8 through 4.3 kg/m2 and a binding agent portion above 0.5 until 4 weight %.Type: GrantFiled: October 4, 2004Date of Patent: September 28, 2010Assignee: Saint-Gobain IsoverInventors: Horst Keller, Ina Bruer, Gerald Amannt, Jean-Luc Bernard
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Patent number: 7799713Abstract: Glass batch compositions for the formation of high-modulus, and high-strength glass fibers as well as fibers suitable for use as textile and reinforcements are disclosed. Fibers formed of the composition are especially suitable for use in high-strength, low-weight applications such as windmill blades and high strength and modulus applications where strength and stiffness are required in the composite. The glass composition is up to about 70.5 weight % SiO2, about 24.5 weight % Al2O3, about 22 weight % alkaline earth oxides and may include small amounts of alkali metal oxides and ZrO2. Fiberglass-reinforced composite articles such as windmill blades are also disclosed.Type: GrantFiled: November 4, 2005Date of Patent: September 21, 2010Assignee: OCV Intellectual Capital, LLCInventors: Douglas A. Hofmann, Peter B. McGinnis