Pore-forming Patents (Class 501/39)
  • Patent number: 9598308
    Abstract: An embodiment of the present invention provides an environment-friendly functional material and a preparation method thereof, a display structure forming material, a color film substrate and a display device.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: March 21, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jiuxia Yang, Feng Bai, Jiantao Liu
  • Patent number: 9469885
    Abstract: An apparatus for recovering valuable metals and manufacturing multifunctional aggregate from slag. The apparatus includes a slag reforming processing pot 10 in which molten slag discharged from a converter or an electric furnace is stored, a reducing agent introducing part 20 which introduces a reducing agent into the slag reforming processing pot from above, the reducing agent recovering valuable metals from the molten slag, a reducing agent inflow part 25 which inputs a reducing agent into the slag reforming processing pot through a lower portion of a side of the slag reforming processing pot, the reducing agent recovering valuable metals from the molten slag, and cooling units 30 and 40 which create bubbles and perform controlled cooling in order to convert the molten slag, from which the valuable metals are recovered, into a light material having a porous structure.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: October 18, 2016
    Assignee: Hyundai Steel Company
    Inventor: Joon-Seong Ki
  • Patent number: 9302931
    Abstract: The invention relates to a method and to a device for ceramizing green glass in a continuous furnace, with the ceramization being carried out directly on rollers.
    Type: Grant
    Filed: March 20, 2010
    Date of Patent: April 5, 2016
    Assignee: SCHOTT AG
    Inventors: Falk Gabel, Thoralf Johansson, Uwe Martens, Christian Roos, Friedrich Georg Schroder
  • Patent number: 8936850
    Abstract: Foam glass may include natural glass, wherein the foam glass includes greater than 5% alumina by weight of the foam glass and has a coefficient of thermal expansion ranging between 4×10?6 ppm/° C. and 6×10?6 ppm/° C. A composition for making foam glass may include natural glass including at least 5% alumina by weight of the composition, soda ash including less than 10% by weight of the composition, and boric acid including at least 5% by weight of the composition. A method for making foam glass may include mixing natural glass with boron to form a mixture, milling the mixture, melting the mixture at a temperature of at least 900° C., and allowing the melted mixture to cool, such that the foam glass includes at least 5% alumina by weight of the foam glass and at least 5% boron oxide by weight of the foam glass.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: January 20, 2015
    Assignee: Imerys Filtration Minerals, Inc.
    Inventor: Bo Wang
  • Patent number: 8916486
    Abstract: A method of making a foamed glass body, including preparing an admixture of powdered glass, at least one carbonate based foaming agent, and at least devitrification inhibitor, heating the admixture to a first temperature to soften the glass, heating the admixture to a second, higher temperature to foam the softened glass into a foamed glass body, and cooling the foamed glass body. The crystal silica content of the so-formed foamed glass body is less than 1 weight percent.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: December 23, 2014
    Inventors: Richard Lehman, Steven Haines, Andrew Ungerleider
  • Patent number: 8865618
    Abstract: A carbon or ceramic monolithic materials with an M2 (macroporous/microporous) hierarchised porous structure is provided as well as method for preparing said materials using a macro/meso/microporous silica cavity. Such materials may be used, in particular for the production of hydrogen purifiers, supercapacitors or electrodes, or else for carrying out catalysed chemical reactions in a heterogeneous phase.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: October 21, 2014
    Assignee: Universite Pierre et Marie Curie
    Inventors: Rénal Backov, Nicolas Brun, Clément Sanchez
  • Patent number: 8846557
    Abstract: The present invention relates to a ceramic composition and a porous ceramic insulating material comprising the same, which is widely used as a core material in sandwich panels or fire doors. The ceramic composition comprises 44-60 wt % of glass powder, 8-15 wt % of fly ash, 4-8 wt % of surface treatment agent, and 23-29 wt % of water glass. The porous ceramic insulating material manufactured from the composition is lightweight and is an environmentally friendly material which generates no toxic gas when it catches fire. The ceramic insulating material can be produced at a low temperature of 800˜900° C., and thus has low production cost. In addition, it can be continuously manufactured in a sheet form.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: September 30, 2014
    Assignee: GMatex Co., Ltd.
    Inventors: Jae Young Rim, Jeong In Lim, Kil Sue Lhim
  • Patent number: 8834983
    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: Grant
    Filed: October 23, 2013
    Date of Patent: September 16, 2014
    Assignee: Nichias Corporation
    Inventors: Masaaki Nakayama, Masatoshi Mitsuta
  • Patent number: 8815758
    Abstract: The present application relates to a silica-based nonflammable material and to a method for preparing same. More particularly, the application relates to a silica-based nonflammable material which contains silica, limestone, and albite as main ingredients, which is obtained by a series of processes including grinding, melting, spraying, and molding, and which can replace asbestos, as well as to a method for preparing same. As functional building materials which are nonflammable even at high temperatures can be prepared using silica-based nonflammable materials consisting of silica-based minerals, and as only natural minerals may be used as main ingredients. The materials used as building materials may not be harmful to the human body and can replace asbestos that has been widely used as a conventional building material for thermal insulation, soundproofing, etc.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: August 26, 2014
    Inventors: Se-Lin Lee, Jang Seop Oh
  • Patent number: 8722188
    Abstract: Disclosed is a process for producing ceramic particles, such as proppants, that have at least 10 percent total porosity. The process includes forming a particle precursor that includes 5 percent to 30 percent of a first ceramic material and at least 40 percent of a second ceramic material. The sintering temperature of the first ceramic material may be lower than the sintering temperature of a second ceramic material. Heating the precursor to a maximum temperature above the sintering temperature of the first material and below the sintering temperature of the second material. Also disclosed is a ceramic article that has a particular combination of chemistry and alumina crystalline phase.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: May 13, 2014
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Tihana Fuss, Laurie San-Miguel, Kevin R. Dickson, Walter T. Stephens
  • Publication number: 20140021419
    Abstract: Method for producing foam glass by recycling wasteglass mixture containing screen glass from television sets, computers, monitors and glass from fluorescent tubes, light bulbs and photovoltaic systems. Steps are: separately grinding individual fractions of wasteglass from various sources, forming glass powder; mixing a sintered glass composition including components of various glass powder fractions and an inorganic carbon carrier substance as activator in a dry process without adding water or liquids; and thermally treating the sintered glass composition. This composition is first subjected to a sintering process and later to a foaming process, at temperatures in a range of 855° C. to 890° C. The arising foam glass is subsequently cooled down. The sintered glass composition, which is thermally sintered glass powder and activator, is composed of at least 10 wt % of screen glass, with 85 to 90 wt % originating from screen glass and glass from fluorescent tubes, light bulbs and photovoltaic systems.
    Type: Application
    Filed: April 2, 2012
    Publication date: January 23, 2014
    Applicant: TDC Trade Development and Construction Ltd.
    Inventors: Ralf Baier, Rainer Daniel
  • Patent number: 8609244
    Abstract: A low density material and a method for preparing a low-density material and precursor for forming a low-density material are provided. An aqueous mixture of inorganic primary component and a blowing agent is formed, the mixture is dried and optionally ground to form an expandable precursor. Such a precursor is then fired with activation of the blowing agent being controlled such that it is activated within a predetermined optimal temperature range. The firing conditions are also controlled to provide a low density sphere containing a heterogeneous sphere wall structure comprising a combination of amorphous glass and a crystalline phase or gas phase or both.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: December 17, 2013
    Assignee: James Hardie Technology Limited
    Inventors: Huagang Zhang, Hamid Hojaji, Shannon Marie Labernik, David L. Melmeth, Thinh Pham, James A. McFarlane
  • Patent number: 8453400
    Abstract: A prestressed, strong foam glass tile for use in construction. The prestressed, strong foam glass tiles of the present invention are capable of withstanding relatively large prestressing as a result of their relatively high compression strength. These prestressed, foam glass tiles will absorb and/or withstand more energy from an explosion, withstand higher heat and wind loading and other mechanical forces than traditional foam glass tiles. The foam glass tile of the present invention is strong enough that it can be prestressed over 1000 psi (lb./sq. in.), and more preferably over 2,000, 3,000, 4,000 and even more preferably over 5,000 psi. The prestressed, strong foam glass tiles of the present invention may be included as part of a prestressed assembly. Said prestressed assembly may be comprised of two metal members, one or more prestressed foam glass tiles, and a tension member such as a tension bolt and/or wires.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: June 4, 2013
    Inventor: Pedro M. Buarque de Macedo
  • Patent number: 8453401
    Abstract: A prestressed, strong foam glass tile for use in construction. The prestressed, strong foam glass tiles of the present invention are capable of withstanding relatively large prestressing as a result of their relatively high compression strength. These prestressed, foam glass tiles will absorb and/or withstand more energy from an explosion, withstand higher heat and wind loading and other mechanical forces than traditional foam glass tiles. The foam glass tile of the present invention is strong enough that it can be prestressed over 1000 psi (lb./sq. in.), and more preferably over 2,000, 3,000, 4,000 and even more preferably over 5,000 psi. The prestressed, strong foam glass tiles of the present invention may be included as part of a prestressed assembly. Said prestressed assembly may be comprised of two metal members, one or more prestressed foam glass tiles, and a tension member such as a tension bolt and/or wires.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: June 4, 2013
    Inventor: Pedro M. Buarque de Macedo
  • Publication number: 20130116107
    Abstract: Foam glass may include natural glass, wherein the foam glass includes greater than 5% alumina by weight of the foam glass and has a coefficient of thermal expansion ranging between 4×10?6 ppm/° C. and 6×10?6 ppm/° C. A composition for making foam glass may include natural glass including at least 5% alumina by weight of the composition, soda ash including less than 10% by weight of the composition, and boric acid including at least 5% by weight of the composition. A method for making foam glass may include mixing natural glass with boron to form a mixture, milling the mixture, melting the mixture at a temperature of at least 900° C., and allowing the melted mixture to cool, such that the foam glass includes at least 5% alumina by weight of the foam glass and at least 5% boron oxide by weight of the foam glass.
    Type: Application
    Filed: July 14, 2011
    Publication date: May 9, 2013
    Applicant: Imerys Filtration Minerals, Inc.
    Inventor: Bo Wang
  • Publication number: 20130085056
    Abstract: A method for producing a quartz glass body from a get body is provided, wherein the gel body generated from a colloidal suspension is at least formed and compressed into the quartz glass body Displacement bodies are added to the colloidal suspension prior to gelating into the gel body, and are completely removed from the gel body after gelating, wherein hollow spaces are generated at the positions of the removed displacement bodies, so that a translucent or opaque quartz glass body is generated. Further, a gel body for producing a quartz glass body is provided, wherein displacement bodies are introduced into the gel body that can be completely removed from the gel body, so that hollow spaces arise at the positions of the displacement bodies. A quartz glass body is also provided that includes vacuoles or hollow spaces filled with gas.
    Type: Application
    Filed: November 28, 2012
    Publication date: April 4, 2013
    Applicant: QSIL GMBH QUARZSCHMELZE ILMENAU
    Inventor: QSIL GmbH Quarzschmelze Ilmenau
  • Publication number: 20130045853
    Abstract: Provided is a method of producing a porous glass having a high strength by a safe, simple process that does not involve the use of any high-temperature heat treatment or acid treatment step. The method includes: mixing 4 wt % or more to 6.5 wt % or less of sodium oxide, 26 wt % or more to 36 wt % or less of boron oxide, and 60 wt % or more to 68 wt % or less of silicon oxide; heating the mixed materials to melt the materials and cooling the molten materials to obtain a glass body; and a step involving bringing the glass body into contact with water without reheating the glass body to obtain the porous glass.
    Type: Application
    Filed: May 13, 2011
    Publication date: February 21, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yoshinori Kotani, Zuyi Zhang, Kenji Takashima
  • Publication number: 20120028329
    Abstract: The present invention relates to an optically transparent glass foam or glass-ceramic foam as well as to a method for the production of an optically transparent glass foam or glass-ceramic foam. A method is described for the production of optically transparent foams, wherein the following steps are conducted: a) Mixing of pre-ceramic Si polymer, glass powder and glass converter; b) Heating of the mixture to a temperature below the decomposition temperature of the pre-ceramic Si polymer with the formation of a foam; c) Heating the obtained foam to a temperature above the decomposition temperature of the pre-ceramic Si polymer; d) Heating the obtained product to a temperature between 700° C. and 1400° C. with the formation of glass; and e) Cooling the thus-obtained product to ambient temperature.
    Type: Application
    Filed: June 24, 2009
    Publication date: February 2, 2012
    Inventors: Michael Scheffler, Christiane Ohl, Christina Olschewski, Viola Wilker, Franziska Scheffler
  • Patent number: 8025838
    Abstract: The invention provides a process of making porous structures or materials, including the colloidal processing (e.g. slip casting, pressure casting, tape casting or electrophoretic deposition) of solid particle emulsions to form a green body that can be directly sintered without a de-binding step.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: September 27, 2011
    Assignee: K.U. Leuven Research & Development
    Inventors: Bram Neirinck, Jozef Vleugels, Jan Fransaer, Omer Van Der Biest
  • Publication number: 20110152056
    Abstract: There is provided a method for making hollow microspheres including heating a feed under conditions sufficient to convert at least a portion of the feed into hollow microspheres, where the heating is conducted under a vacuum. There is also provided hollow microspheres made using this method.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 23, 2011
    Inventor: Gang Qi
  • Publication number: 20110152057
    Abstract: There is provided hollow microspheres that are essentially free of blowing agent. There is also provided hollow microspheres comprising perlite and having a single cell structure.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 23, 2011
    Inventor: Gang Qi
  • Patent number: 7932188
    Abstract: Low dielectric materials and films comprising same have been identified for improved performance when used as interlevel dielectrics in integrated circuits as well as methods for making same. In one aspect of the present invention, an organosilicate glass film is exposed to an ultraviolet light source wherein the film after exposure has an at least 10% or greater improvement in its mechanical properties (i.e., material hardness and elastic modulus) compared to the as-deposited film.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: April 26, 2011
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Aaron Scott Lukas, Mark Leonard O'Neill, Jean Louise Vincent, Raymond Nicholas Vrtis, Mark Daniel Bitner, Eugene Joseph Karwacki, Jr.
  • Patent number: 7900474
    Abstract: Hollow glass microspheres are made using selenium oxide as the blowing agent. The use of selenium oxide provides two unique advantages: lower density and smaller hollow microspheres are obtained because loss of selenium oxide gas out of the liquid glass bubble during formation is slow, and the hollow microspheres will contain a vacuum due to the condensation of selenium oxide gas blowing agent upon cooling of the spheres below 315 deg. C.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: March 8, 2011
    Inventor: Warren R. Beck
  • Patent number: 7871589
    Abstract: Provided is a pyrogenically prepared SiO2 powder in the form of aggregated primary particles having a statistical thickness surface area (STSA) of 10-500 m2/g, a thickening action based on the STSA of 4-8 mPas·g/m2, and a micropore volume of 0.03-0.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: January 18, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Andreas Hille, Florian Felix Kneisel, Volker Hamm, Matthias Rochnia
  • Patent number: 7829489
    Abstract: The present invention describes a composition, method and article for a photomachinable glass having a coefficient of thermal expansion from less than 6×10?6/° C. in the temperature range of 0° C. to 300° C. The photomachinable glass composition is a low expansion glass having an amorphous glass phase and crystalline phases selected from the group consisting of spudomene and lithium disilicate.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: November 9, 2010
    Assignee: Corning Incorporated
    Inventors: Nicholas Francis Borrelli, Kathryn L Goetschius, David Lathrop Morse, Charlene Marie Smith
  • Publication number: 20100221540
    Abstract: The invention relates to a process for producing a porous glass and glass powder using a partial Vycor process on an alkali metal borosilicate glass material. The process is characterized in that an addition of metal oxides and/or rare earth metal oxides in variable proportions of from 0.05 to 15 percent by mass is carried out on the alkali metal borosilicate glass material during the course of the Vycor process, with a doping incorporation of the metal oxides and/or the rare earth metal oxides into the resulting SiO2 matrix with an increase in the optical index of refraction of the porous glass being brought about during the Vycor process, and an opposed jet milling process is employed in combination with a ceramic sifter wheel in a subsequent dry milling process, with classification of the porous glass particles produced which have a size range of less than 15 ?m being carried out.
    Type: Application
    Filed: February 24, 2006
    Publication date: September 2, 2010
    Applicant: VitraBio GmbH
    Inventor: Monika Hermann
  • Patent number: 7700670
    Abstract: A molding composition formulation includes a thermoset cross-linkable polymeric resin. Glass microspheroids are present such that upon cure of the resin the resulting article has a linear shrinkage of less than ±0.06% and a density of less than 1.65. An article formed from such a composition is further strengthened by the addition of a surface activating agent bonded to the surface of the glass microspheroids. Conventional particulate fillers when added to an inventive formulation provide enhanced performance when the filler particle has a size sufficiently small to insert within adjacent microspheroid interstitial voids. An unsaturated polyester resin so formed is particularly well suited for the formation of sheet molding compound formulations.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: April 20, 2010
    Inventors: Brian A. Beach, Probir K. Guha, Brad Haskell, Michael J. Siwajek
  • Patent number: 7658990
    Abstract: A super lightweight ceramic panel for a non-bearing wall utilizing an expandable clay mineral and a process for preparing the same are provided. The super lightweight ceramic panel is comprised of a clay composition containing 90 to 98% by weight of an expandable clay mineral, 1.5 to 5% by weight of a flux (glass), and 0.5 to 5% by weight of silicon carbide, and is prepared by mixing and pressing the clay composition, followed by firing at a temperature of 1100 to 1200° C. The super lightweight ceramic panel in accordance with the present invention is a material having a light weight and exhibiting improvement in physical properties such as water resistance, flame retardancy, heat insulation and rigidity, via formation of closed pores inside the ceramic material.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: February 9, 2010
    Assignee: LG Chem, Ltd.
    Inventor: Sang-Ho Shin
  • Publication number: 20090298667
    Abstract: The present invention provides compositions and methods for producing porous ceramic articles. The compositions and methods comprise a ceramic precursor batch comprising an organic peroxide pore forming agent where the pore forming agent is an organo-adduct of hydrogen peroxide and an organic compound or an organic peroxide of the general formula R—O—O—R?. The organic peroxide pore forming agent is stable during extrusion and other methods for forming a green body and does not decompose until the green body is dried.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 3, 2009
    Inventors: William Peter Addiego, Christopher Raymond Glose
  • Publication number: 20090133440
    Abstract: A method of making a foamed glass body, including preparing an admixture of powdered glass, at least one carbonate based foaming agent, and at least devitrification inhibitor, heating the admixture to a first temperature to soften the glass, heating the admixture to a second, higher temperature to foam the softened glass into a foamed glass body, and cooling the foamed glass body. The crystal silica content of the so-formed foamed glass body is less than 1 weight percent.
    Type: Application
    Filed: June 4, 2008
    Publication date: May 28, 2009
    Applicant: Earthstone International LLC
    Inventors: Richard Lehman, Steven Haines, Andrew Ungerleider
  • Patent number: 7538068
    Abstract: A carbon dioxide gas absorbent includes a porous body containing a lithium complex oxide. The porous body includes pores having a pore diameter distribution such that main pores which consist of first pores with a diameter of 10 to 100 ?m and second pores with a diameter larger than 100 ?m and 500 ?m or smaller occupy 80 to 100%, third pores with a diameter smaller than 10 ?m occupy 0 to 10% and fourth pores with a diameter larger than 500 ?m occupy 0 to 10%, the main pores have a pore diameter distribution such that the first pores occupy 15 to 85% and second pores occupy 15 to 85%.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: May 26, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiro Kato, Toshihiro Imada, Kenji Essaki
  • Patent number: 7479265
    Abstract: This invention relates to ?-SiC foam parts with a specific surface area preferably equal to at least 5 m2/g and with at least two zones A and B with a different cellular porosity distribution, wherein the parts were made by chemical transformation of a porous precursor medium comprising at least two blocks A? and B?, each having a different cellular porosity distribution, and in that the at least two zones A and B are derived from the chemical transformation of the two blocks A? and B?. This foam, optionally after deposition of an active layer, may be used as a filter medium in cartridges designed for the purification of exhaust gases. The invention also relates to manufacturing processes for preparing such a filter medium.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: January 20, 2009
    Assignees: SICAT, Entre National de la Recherche Scientifigue, Universite Louis Pasteur de Strasbourg
    Inventors: Charlotte Pham, Laurie Pesant, Pierre Bernhardt, Michel Wolf, Cuong Pham-Huu, Marc-Jacques Ledoux, Michel Kartheuser, Estelle Vanhaecke
  • Patent number: 7468290
    Abstract: Low dielectric materials and films comprising same have been identified for improved performance when used as interlevel dielectrics in integrated circuits as well as methods for making same. In one aspect of the present invention, an organosilicate glass film is exposed to an ultraviolet light source wherein the film after exposure has an at least 10% or greater improvement in its mechanical properties (i.e., material hardness and elastic modulus) compared to the as-deposited film.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: December 23, 2008
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Aaron Scott Lukas, Mark Leonard O'Neill, Jean Louise Vincent, Raymond Nicholas Vrtis, Mark Daniel Bitner, Eugene Joseph Karwacki, Jr.
  • Publication number: 20080307760
    Abstract: Disclosed are plugging mixtures for forming a ceramic honeycomb wall flow filter. The plugging mixtures exhibit a reduced percentage of volumetric shrinkage during the drying process and generally comprise an inorganic ceramic powder batch composition; an organic binder; a liquid vehicle; and a non-foaming volume transformation agent. Also disclosed are methods for forming plugged ceramic wall flow filters from such plugging mixtures and honeycomb articles produced therefrom.
    Type: Application
    Filed: March 19, 2008
    Publication date: December 18, 2008
    Inventors: Shyam Lekhraj Chatlani, Isabelle Marie Chauvel-Melscoet, Luiz Eduardo Ferri
  • Patent number: 7459208
    Abstract: Improved foam glass products prepared from natural glasses, such as unexpanded fine perlite ore and expanded fine perlite, methods of producing the improved foam glass products, and methods of use thereof are provided. The improved foam glass product made from natural glasses has, for example, a thermal conductivity less than 0.70 Btu·in/hr·F·ft2 (0.101 W/m° K) at 73° F.(296° K), a compressive strength greater than 100 PSI (689 kPa) and a density less than 20 lb/ft3 (320 kg/m3). The improved foam glass product made from natural glasses may be used in a variety of applications including thermal and acoustic insulation applications.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: December 2, 2008
    Assignee: Advanced Minerals Corporation
    Inventor: Bo Wang
  • Publication number: 20080191834
    Abstract: A low-capacitance multilayer chip varistor has capacitance lower than 0.5 pF at 1 MHz and has a characteristic of resisting more than thousands of times of 8 KV electrostatic shock, which comprises a ceramic main body, outer electrodes disposed at two ends of the ceramic main body and inner electrodes disposed therein; the ceramic main body comprises inorganic glass of 3˜50 wt % and semi-conductive or conductive particles of 50˜97 wt % with particle size of more than 0.1 ?m, and a layer of inorganic glass film covers the surface of semi-conductive or conductive particles, wherein the inorganic glass film contains semi-conductive or conductive particles of submicron or nanometer which is smaller than 1 micron, and the quantity contained of semi-conductive or conductive particles is less than 20 wt % of that of inorganic glass.
    Type: Application
    Filed: February 12, 2007
    Publication date: August 14, 2008
    Applicant: SFI Electronics Technology Inc.
    Inventors: Ching-Hohn Lien, Cheng-Tsung Kuo, Jun-Nun Lin, Jie-An Zhu, Li-Yun Zhang, Xing-Guang Huang, Wei-Cheng Lien
  • Patent number: 7252713
    Abstract: A method of facilitating the crystallisation of a macromolecule comprising the step of adding a mesoporous glass to a crystallisation sample wherein the mesoporous glass comprises pores having diameters between 4 nm and 100 nm and has a surface area of at least 50 m2/g. A method of facilitating the crystallisation of a macromolecule comprising the step of adding to a crystallisation sample a mesoporous glass of the composition Si02; CaO—P205-SiO2 or Na20-CaO—P205-SiO2, wherein each of the Ca, P, Si or Na atoms within the compositions may be substituted with a suitable atom chosen from B, Al, Ti, Mg, or K, and, optionally, the composition may also include heavy elements to enhance X-ray diffraction contrast such as Ag, Au, Cr, Co, Sr, Ba, Pt, Ta or other atom with an atomic number over 20.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: August 7, 2007
    Assignee: Imperial Collage Innovations Limited
    Inventors: Naomi Chayen, Larry Hench
  • Patent number: 7169721
    Abstract: Disclosed herein are a self-foamed porous ceramic composition and a method for making a porous ceramic using the self-foamed porous ceramic composition. The self-foamed porous ceramic is obtained by fabricating a glass consisting of 41˜47 mole % of calcium oxide (CaO), 41˜47 mole % of silica (SiO2) and 6˜18 mole % of borate (B2O3), pulverizing the glass into a finely-divided glass powder having an average particle size of 1˜10 ?m, molding the glass powder, and sintering the molded glass powder.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: January 30, 2007
    Assignee: Seoul National University Industry Foundation
    Inventors: Hyun Seung Yu, Kug Sun Hong, Hwan Kim, Dong Ho Lee, Choon Ki Lee, Bong Soon Chang, Deug Joong Kim, Jun Hyuk Seo, Jae Hyup Lee, Ki Soo Park
  • Patent number: 7041366
    Abstract: The invention provides porous silicon nitride ceramics that having uniform, fine closed pores and a manufacturing method thereof. Metal Si powder is mixed with a sintering additive, followed by thermal treatment, which is a pre-process for forming a specific grain boundary phase. Two-stage thermal treatment is thereafter performed by microwave heating at a temperature of 1000° C. or more. The metal Si powder is thereafter subjected to a nitriding reaction from its surface, the metal Si is thereafter diffused to nitride formed on the outer shell thereof such that porous silicon nitride ceramics having uniform, fine closed pores can be produced. Having a high ratio of closed pores and being superior in electrical/mechanical characteristics, the porous silicon nitride ceramics can display excellent characteristics if used, for example, for an electronic circuit board that requires an anti-hygroscopicity, a low dielectric constant, a low dielectric loss, and mechanical strength.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: May 9, 2006
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Michimasa Miyanaga, Osamu Komura
  • Patent number: 6927185
    Abstract: As-prepared AlPO4—B2O3—Na2O-based glasses were placed in an autoclave together with distilled water and were treated at 150° C. for two hours. Although the specific surface area of the as-prepared glass prior to autoclave treatment was negligibly small, the autoclave treatment dissolved most of the borate component and the sodium component to obtain a mesoporous material having a specific surface area of 236 m2/g and a pore size distribution of 5 to 10 nm. This mesoporous material is hydrophobic and has weak solid acidity and small polarity.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: August 9, 2005
    Assignee: Japan Science and Technology Corporation
    Inventors: Shoji Yamanaka, Toshiyuki Sasaki
  • Patent number: 6890873
    Abstract: Pyrogenically prepared silicon dioxide with the following physicochemical properties: 1. Average particle size (D50 value) D50?150 nm (dynamic light scattering, 30 wt %) 2. Viscosity (5 rpm, 30 wt %) ??100 m·Pas 3. Thixotropy of Ti (?(5 rpm))/(?(50 rpm))?2 4. BET surface area 30-60 m2/g 5. Compacted bulk=100-160 g/L 6. Original pH?4.5 that can be used for the preparation of dispersions and glass bodies.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: May 10, 2005
    Assignee: Degussa AG
    Inventors: Monika Oswald, Gerrit Schneider, Klaus Deller
  • Patent number: 6770111
    Abstract: A ceramic structure which is pollucite-based and has high refractoriness and high resistance to thermal shock. The inventive structure is suitable in high temperature applications such as a filtering particulates from diesel engine exhaust.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: August 3, 2004
    Assignee: Corning Incorporated
    Inventors: Robert Morena, Dell J. St. Julien, Bryan R. Wheaton, John F. Wight, Jr.
  • Patent number: 6710001
    Abstract: A porous sintered body in which the leaching amounts of heavy metals are small and having high availability contains 0.5-15 weight % of B2O3, preferably contains 20-60 weight % of Al2O3, 18-60 weight % of SiO2, 1-12 weight % of the sum of Na2O, K2O, Li2O, and P2O5, 1-30 weight % of the sum of CaO, SrO, BaO, and MgO, and 0.5-15 weight % of B2O3.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: March 23, 2004
    Assignee: Inax Corporation
    Inventors: Osamu Watanabe, Shuji Kawai
  • Publication number: 20040053766
    Abstract: Disclosed herein are a self-foamed porous ceramic composition and a method for making a porous ceramic using the self-foamed porous ceramic composition. The self-foamed porous ceramic is obtained by fabricating a glass consisting of 41˜47 mole % of calcium oxide (CaO), 41˜47 mole % of silica (SiO2) and 6˜18 mole % of borate (B2O3), pulverizing the glass into a finely-divided glass powder having an average particle size of 1˜10 &mgr;m, molding the glass powder, and sintering the molded glass powder.
    Type: Application
    Filed: August 27, 2003
    Publication date: March 18, 2004
    Inventors: Hyun Seung Yu, Kug Sun Hong, Hwan Kim, Dong Ho Lee, Choon Ki Lee, Bong Soon Chang, Deug Joong Kim, Jun Hyuk Seo, Jae Hyup Lee, Ki Soo Park
  • Patent number: 6596834
    Abstract: Silicone resins having the general formula (R1SiO3/2)x(HSiO3/2)y where R1 is an alkyl group having 8 to 24 carbon atoms; x has a value of 0.05 to 0.7; y has a value of 0.3 to 0.95 and x+y =1. The resins are used to form porous ceramic materials and porous thin films on semiconductor devices.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: July 22, 2003
    Assignee: Dow Corning Corporation
    Inventor: Bianxiao Zhong
  • Patent number: 6562744
    Abstract: Inorganic porous materials contained in a confined space with at least one dimension of less than 1 mm, which are in liquid tight contact with the walls of said confined space. Preferred as the confined space are capillaries. Articles contained such materials and methods for making them in the confined space are described.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: May 13, 2003
    Assignee: Merck Patent GmbH
    Inventors: Kazuki Nakanishi, Naohiro Soga, Tokiyo Minakuchi
  • Patent number: 6531222
    Abstract: It is an object of the present invention to provide hollow glass microspheres having particle properties of a low particle density and grain size properties of a sharp grain size distribution, having a high homogeneity and having such strength that they are less likely to fracture during processing. In the present invention, a glass material containing a foaming agent and containing B2O3 in an amount of from 9 to 20%, is subjected to wet grinding to obtain a slurry having an average particle size of at most 3 &mgr;m, droplets thereof are heated, to obtain hollow glass microspheres having an average particle size of at most 15 &mgr;m, a maximum particle size of at most 45 &mgr;m, a particle density of at most 0.5 g/cm3 and a grain size gradient of at most 2.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: March 11, 2003
    Assignee: Asahi Glass Company, Limited
    Inventors: Masaharu Tanaka, Hachiro Hirano, Kenji Yamada
  • Patent number: 6471868
    Abstract: A method for preparing a plasma or serum sample from a whole blood sample, by contacting a glass fiber filter which contains calcium, sodium or potassium components with an aqueous solution of an organic acid or a mineral acid to elute the calcium, sodium and potassium components in the glass fiber filter into the aqueous solution, separating the aqueous solution from the filter and washing the glass fiber filter with water to remove any residual aqueous solution adhered thereto and then filtering a whole blood sample through the thus treated fiber filter.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: October 29, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshihisa Ito, Takaki Arai, Kenichiro Yazawa, Osamu Seshimoto
  • Publication number: 20020032114
    Abstract: In-situ formation of a series of glass-ceramic composites by the Self-propagating High temperature Synthesis (SHS) technique. Advantages include processing simplicity and cost savings. The materials processed by the technique either have a pure glassy matrix (Al2O3—B2O3—MgO) or a glass matrix with partial devitrification, and crystalline TiB2 particles having a size of about 0.5 &mgr;m. The material can be prepared either in inert atmosphere inside a reaction chamber or in air without a chamber. The materials exhibit relatively high porosity and good strength and can be used as filters, thermal insulation materials or in other similar applications.
    Type: Application
    Filed: May 16, 2001
    Publication date: March 14, 2002
    Inventors: Hu Chun Yi, Jacques Y. Guigne, John J. Moore
  • Patent number: 6319876
    Abstract: The invention relates to the catalytic activity and selectivity of microporous, amorphous glasses of mixed metal oxides and the application thereof in the form of shape selective, heterogeneous catalysts. Microporous, amorphous mixed metal oxides (glasses) can be formed by polycondensation of soluble metal compounds. These new materials show a temperature stability up to 800° C. These amorphous glasses shown in heterocatalytic reactions selective oxidation, hydrogenation, hydrocracking and condensation catalysis.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: November 20, 2001
    Assignee: Studiengesellschaft Kohle mbH
    Inventor: Wilhelm F. Maier