With Mechanical Shaping Or Subdividing Patents (Class 65/21.5)
  • Patent number: 9486831
    Abstract: The present invention relates to a process for manufacturing a waterproofing membrane comprising: a preparation of a composition dispersed in a solvent; coating a reinforcement layer by application of said composition on one side of the reinforcement layer; an evaporation of said solvent; having the coated reinforcement layer dried; and an application of a bituminous mass on another side of said reinforcement layer, characterized in that, during the preparation of the composition, the composition is dispersed in a solvent chosen in the group consisting of a solvent other than water or water. The present invention relates also to a composition for a waterproofing membrane.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: November 8, 2016
    Assignee: S.A. Imperbel N.V.
    Inventors: Michel Getlichermann, Xavier Godeaux, Hans Aerts, Eric Bertrand
  • Publication number: 20150068249
    Abstract: This invention relates to lead free and cadmium free copper-containing glass frits that can be used as pigments to color other glass frits or to impart color to solid substrates such as glass, ceramic or metals, or to impart color to a thermoplastic mass. The compositions comprise silica, alkali metal oxides, alkaline earth metal oxides, tin oxide and copper oxide. The resulting compositions can be used to decorate and protect automotive, beverage, architectural, pharmaceutical and other glass substrates, generally imparting a red color.
    Type: Application
    Filed: November 7, 2014
    Publication date: March 12, 2015
    Applicant: FERRO CORPORATION
    Inventors: Enos A. Axtell, III, George E. Sakoske, Andreas Schulz, Juergen Hanich, Lothar Heck, Dietrich Speer, Martin Baumann
  • Publication number: 20150065329
    Abstract: The invention introduces new glasses, and new methods for making glass, glass-ceramics, and/or ceramic articles from inorganic compounds extracted from organic waste streams, including food waste streams, agricultural waste streams, and other organic waste streams with high inorganic oxide content. The organic waste stream can also be extended to human and animal wastes. These glasses will have the same, or improved physical, chemical, and mechanical properties as glasses made from mined minerals, however, the methodology disclosed in this invention will produce a renewable and sustainable inorganic product manufactured from organic waste streams.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 5, 2015
    Inventors: Ivan A. Cornejo, Ivar E. Reimanis, Subramanian Ramalingam
  • Publication number: 20140346417
    Abstract: The invention describes the use of a zinc oxide containing frit with a ZnO content of 20 wt % to 75 wt % and an average grain size of less than 30 ?m as a UV light absorbing UV protection means, for example for the application areas of thermoplastically deformable synthetic materials, solvent-containing and water-containing lacquers/varnishes, radiation-curing lacquers/varnishes, powder lacquers/varnishes, paper coatings and hydraulic-setting construction products.
    Type: Application
    Filed: November 27, 2012
    Publication date: November 27, 2014
    Inventor: Michael Nürnberger
  • Publication number: 20140174126
    Abstract: The invention provides a glass ceramic glaze composition manufactured using conventional raw material and one or more waste materials, wherein the waste materials are capable of producing glass forming oxides and glass modifying oxides. The waste materials are selected from a group that includes cullet, pozzolanic waste and fly ash. The invention also provides a method for manufacturing the glass ceramic glaze composition. Further, the invention provides different methods of glazing a glass ceramic substrate using the glass ceramic glaze composition.
    Type: Application
    Filed: December 23, 2012
    Publication date: June 26, 2014
    Applicants: UNIVERSITÀ DI PADOVA, KING ABDUL AZIZ CITY FOR SCIENCE AND TECHNOLOGY
    Inventors: Mohammed A Binhussain, Paolo Colombo, Enrico Bernardo, Majed A Binmajed, Mauro Marangoni, Hamad H Atalasi, Amer M Alajmi, Abdulaziz Altamimi
  • Publication number: 20140113134
    Abstract: A low expansion glass filler which minimizes reflection of laser light during hermetic sealing, a method of manufacturing the same and a glass frit including the same. The low expansion glass filler includes SiO2, Al2O3, B2O3 and CaCO3, the transmittance of the low expansion glass filler being 80% or greater at a wavelength ranging from 630 to 920 nm.
    Type: Application
    Filed: October 21, 2013
    Publication date: April 24, 2014
    Applicant: SAMSUNG CORNING PRECISION MATERIALS CO., LTD.
    Inventors: Jhee-Mann Kim, Kiyeon Lee, Jaemin Cha, Jaeho Lee
  • Publication number: 20130217560
    Abstract: The invention includes a composition for sealing agent, generally in the form of glass frit, lead-free, comprising by weight over the total weight of the composition: 30-80% Bi2O3; 2-10% ZnO; 2-10% B2O3; 0-5% Na2O; 1-10% SiO2; 1-8% Al2O3; 0-7% BaO; and 0-8% MgO. The composition for sealing agent as defined above can be added with a filler in a quantity up to 20% by weight over the total weight of the resulting mixture. The invention also includes a sealing paste containing the composition for sealing agent, the optional filler, an organic binder and optionally an organic solvent. The invention also includes methods for producing and using the composition for sealing agent and the sealing paste, as well as an electronic device sealed with the sealing paste.
    Type: Application
    Filed: September 16, 2010
    Publication date: August 22, 2013
    Applicant: DAUNIA SOLAR CELL S.R.L.
    Inventor: Alessio Antonini
  • Publication number: 20120308747
    Abstract: Certain example embodiments relate to seals for glass articles. Certain example embodiments relate to a composition used for sealing an insulted glass unit. In certain example embodiments the composition includes vanadium oxide, barium oxide, zinc oxide, and at least one additional additive. For instance, another additive that is a different metal oxide or different metal chloride may be provided. In certain example embodiments, a composition may be combined with a binder solution that substantially or completely burns out by the time the composition is melted. In certain example embodiments, a CTE filler is included with a frit material. In certain example embodiments, a vacuum insulated glass unit includes first and second glass substrates that are sealed together with a seal that includes the above-described composition.
    Type: Application
    Filed: May 25, 2012
    Publication date: December 6, 2012
    Applicant: Guardian Industries Corp.
    Inventor: Timothy A. DENNIS
  • Publication number: 20120213951
    Abstract: Certain example embodiments relate to improved seals for glass articles. Certain example embodiments relate to a composition used for sealing an insulted glass unit. In certain example embodiments the composition includes vanadium oxide, barium oxide, zinc oxide, and at least one additional additive. For instance, another additive that is a different metal oxide or different metal chloride may be provided. In certain example embodiments, a vacuum insulated glass unit includes first and second glass substrates that are sealed together with a seal that includes the above-described composition.
    Type: Application
    Filed: February 22, 2011
    Publication date: August 23, 2012
    Applicant: Guardian Industries Corp.
    Inventor: Timothy A. Dennis
  • Publication number: 20120199782
    Abstract: A hexagonal crystal ferrite magnetic powder having high magnetic characteristics while having a small particle volume and a high specific surface area is provided, and a high-density magnetic recording medium using the powder. A method for producing a hexagonal crystal ferrite formed using a glass crystallization method includes the steps of: mixing a glass matrix with raw materials including iron, bismuth, a divalent metal (M1), a tetravalent metal (M2), any one kind (A) of barium, strontium, calcium, and lead, and at least one kind of rare earth element (represented by R) having a mole equal to or less than that of the iron; heating the mixed raw material to obtain a glass body; quenching the glass body, pulverizing the glass body, and performing a heat treatment, and washing the glass body after the heat treatment with an acid solution.
    Type: Application
    Filed: January 29, 2010
    Publication date: August 9, 2012
    Applicant: DOWA ELECTRONICS MATERIALS CO., LTD.
    Inventors: Kenji Masada, Tomoyuki Ishiyama, Gousuke Iwasaki
  • Publication number: 20120196126
    Abstract: This invention relates to lead free and cadmium free copper-containing glass fits that can be used as pigments to color other glass fits or to impart color to solid substrates such as glass, ceramic or metals, or to impart color to a thermoplastic mass. The compositions comprise silica, alkali metal oxides, alkaline earth metal oxides, tin oxide and copper oxide. The resulting compositions can be used to decorate and protect automotive, beverage, architectural, pharmaceutical and other glass substrates, generally imparting a red color.
    Type: Application
    Filed: June 16, 2010
    Publication date: August 2, 2012
    Applicant: FERRO CORPORATION
    Inventors: Enos A. Axtell, III, George E. Sakoske, Andreas Schulz, Juergen Hanich, Lothar Heck, Dietrich Speer, Martin Baumann
  • Patent number: 8209999
    Abstract: Silica glass granule having the following features: Area: 100 to 5000 ?m2, ECD: 5 to 100 ?m, Circumference: 20 to 400 ?m, Maximum diameter: 10 to 140 ?m, Minimum diameter: 5 to 80 ?m, where all values are medium values, Specific BET surface area: <1 m2/g Impurities: <50 ppm It is prepared by a) compacting pyrogenic silicon dioxide powder with a tamped density of 15 to 190 g/l to slugs, b) subsequently crushing them and removing slug fragments with a diameter of <100 ?m and >800 ?m, c) the slug fragments having a tamped density of 300 to 600 g/l, and d) subsequently treating them at 600 to 1100° C. in an atmosphere which comprises one or more compounds which are suitable for removing hydroxyl groups, and e) then sintering them at 1200° C. to 1400° C.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: July 3, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Kai Schumacher, Christian Schulze-Isfort, Paul Brandl, Mitsuru Ochiai
  • Patent number: 8210000
    Abstract: A bead furnace has a furnace with a furnace chamber 4 and opening 6. A closure assembly 20 is provided on closure assembly 22. The closure assembly has a blank closure element 26 and an active closure element 32 on different sides of the closure assembly, each matching the opening 6. A crucible holder 44 with a detent for holding a crucible and a mold holder 60 for holding a mold are provided on the active face. The closure assembly moves between two states, a load state with the blank closure element 26 in the furnace opening and an operation state with the active closure element 32 in the furnace opening with the crucible and mold in the furnace. The closure assembly can agitate the crucible contents and then tip the crucible to pour fused contents into the mold.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: July 3, 2012
    Assignees: Panalytical B.V., XRF Scientific Limited
    Inventor: Stephen Prossor
  • Publication number: 20120148750
    Abstract: The present invention relates to a color adapting composition used for coloring and color adapting porcelain for ceramic crown such as dental restorations and prosthetics, and aluminosilicate glass appropriate for using in a color adapting composition. More specifically, a color adapting composition for dental porcelains are prepared by blending two or more kinds of glass frits having different sintering temperatures from each other and an inorganic pigment or a colored glass obtained by previously dispersing inorganic pigments in glass.
    Type: Application
    Filed: February 17, 2012
    Publication date: June 14, 2012
    Inventors: Yukio FUKATANI, Keiji TAKAHASHI, Ryuichi YOSHIMOTO
  • Patent number: 8171751
    Abstract: A method of making a foamed glass composite, including crushing a vitreous precursor material, such as waste glass, frit, metallurgical slag or the like, sizing the crushed vitreous precursor to segregate an amount of crushed particles of a predetermined size and pelletizing the crushed particles. The pellets are preheated and passed through a high-temperature zone to foam the pellets. The foamed pellets are rapidly quenched to a temperature below their dilatometric softening point and then cooled to room temperature. The high temperature zone is at least about 1200° C. and the pellets are preheated to within no more than about 25° C. of their dilatometric softening point. The pellets are quenched to partially or completely avoid annealing and have increased hardness and compressive strength as a consequence, as well as a preferred failure mode under compression and torsional loads of crushing/shattering.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: May 8, 2012
    Inventors: Andrew Ungerleider, W. Gene Ramsey
  • Publication number: 20120107622
    Abstract: The disclosure is directed to glass frits materials containing phosphors that can be used in LED lighting devices and for methods associated therewith for making the phosphor containing frit materials. Suitable non-lead glasses have a composition, in mol %, in the range of 20-24% K2O, 8-12% ZnO, 2-6% Al2O3, 35-41% B2O3 and 22-28 SiO2. Suitable leaded glasses have a composition, in wt %, in range of 72-79% PbO, 8-13% Al2O3, 8-13% B2O3, 2-5% SiO2 and 0-0.3% Sb2O3. Commercial high-lead glass can be used in practicing the disclosure. Among the unique advantages are the ability to blend two or more phosphors within the same frit layer which will yield a multi-phosphor-containing glass after firing; the ability to deposit the phosphor onto a substrate into a desired geometric pattern; and the fluorescing layer can be applied to the active plane, with the glass serving as protective substrate.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 3, 2012
    Inventors: Nicholas Francis Borrelli, Lisa Ann Lamberson, Robert Michael Morena, William R. Trutna
  • Publication number: 20120103017
    Abstract: A method for producing a highly pure quartz granulate is provided by means of which a highly pure quartz granulate can be produced from a natural quartz raw material via the steps of: washing a natural quartz raw material in the form of coarsely crushed pieces; mechanical comminution of the pre-crushed pieces; further comminution of the pieces to a grain size of less than 0.5 mm via high-voltage discharge pulses; flotation for separating out foreign minerals; and chemical treatment for further depletion of foreign elements.
    Type: Application
    Filed: January 9, 2012
    Publication date: May 3, 2012
    Inventor: Frank-Peter LUDWIG
  • Patent number: 8091385
    Abstract: A method for changing the width of particle thickness size distribution of flakes of material with the flakes being formed by a process that includes the steps of feeding a stream of molten material in a downwards direction into a rotating cup or disc and allowing the material to pass over the edge of the cup or disc in such a manner as to be forced into a gap between a pair of plates surrounding the cup or disc. The movement of material in the process used for forming the flakes is maintained in an angular direction and effected by a flow of air passing through the plates and either side of the material, so as to pull the stream of material in a manner for keeping it flat and, further, to pull the stream of material so that, as solidification of the material is effected, the sheet of material so formed is broken into flakes.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: January 10, 2012
    Assignee: Glassflake Ltd.
    Inventor: Charles Watkinson
  • Publication number: 20110308278
    Abstract: A process for melting at least one mineral material in powder form includes using at least one laser beam (12) for supplying the energy necessary to the melting, and gradually supplying mineral powder to a zone (10) that is impacted by the laser beam(s) so as to obtain the largest surface possible for interaction between the material and the laser beam(s).
    Type: Application
    Filed: February 17, 2010
    Publication date: December 22, 2011
    Applicant: CERLASE
    Inventor: Arnaud Hory
  • Publication number: 20110154858
    Abstract: A bead furnace has a furnace with a furnace chamber 4 and opening 6. A closure assembly 20 is provided on closure assembly 22. The closure assembly has a blank closure element 26 and an active closure element 32 on different sides of the closure assembly, each matching the opening 6. A crucible holder 44 with a detent for holding a crucible and a mould holder 60 for holding a mould are provided on the active face. The closure assembly moves between two states, a load state with the blank closure element 26 in the furnace opening and an operation state with the active closure element 32 in the furnace opening with the crucible and mould in the furnace. The closure assembly can agitate the crucible contents and then tip the crucible to pour fused contents into the mould.
    Type: Application
    Filed: June 29, 2010
    Publication date: June 30, 2011
    Inventor: Stephen Prossor
  • Publication number: 20110151261
    Abstract: A glass flake (10) having improved heat resistance and chemical resistance is formed from a glass base material satisfying, in mass %, 60?SiO2?75, 5<Al2O3?15, 3?CaO?20, 6?Na2O?20 and 9?(Li2O+Na2O+K2O)?13. When 9?(Li2O+Na2O+K2O)?13 is satisfied in mass %, the CaO content and the Na2O content are preferably set within the ranges of 5?CaO?20 and 6?Na2O?13, respectively. When 13?(Li2O+Na2P+K2O)?20 is satisfied in mass %, the CaO content and the Na2O content are preferably set within the ranges of 3?CaO?15 and 9?Na2O?20, respectively. The working temperature of the glass base material is preferably 1180° C.-1300° C. The temperature difference ?T obtained by taking the devitrification temperature of the glass base material from the working temperature of the glass base material is preferably 0° C.-200° C. The glass transition temperature of the glass base material is preferably 550° C.-700° C. The acid resistance index ?W of the glass base material is preferably 0.05-1.5 mass %.
    Type: Application
    Filed: August 26, 2009
    Publication date: June 23, 2011
    Applicant: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Kosuke Fujiwara, Akihiro Koyama
  • Publication number: 20110129674
    Abstract: The present invention relates to a glass composition comprising crystalline phases, and to glass flakes produced therefrom. These glass flakes can be used as base substrate for effect pigments. The glass flakes can furthermore be used in paints, coatings, printing inks, plastics and in cosmetic formulations. The glass flakes are converted into glass-ceramics, and are present in one of the following composition ranges I or II in % by weight: I: 40-50 SiO2, 10-20 B2O3, 10-20 Na2O, 15-30 TiO2; II: 10-60 SiO2, 5-30 B2O3, 5-40 TiO2, 2-20 Nb2O5, 2-20 Fe2O3, 5-40 Na2O+K2O+CaO+SrO+BaO.
    Type: Application
    Filed: May 15, 2009
    Publication date: June 2, 2011
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Reinhold Rueger, Anke Geisen, Gerald Karn
  • Publication number: 20110073180
    Abstract: Disclosed are lead free glass frit powder for manufacturing a silicon solar cell, its producing method, a metal paste composition containing the same and a silicon solar cell. The lead free glass frit powder for manufacturing a silicon solar cell includes Bi2O3; B2O3; and any one metal oxide selected from the group consisting of ZnO, Al2O3 and BaCO3, or mixtures thereof. The glass frit powder is free of lead, and thus, it is environmental friendly. A front electrode of a solar cell formed using the glass frit powder has low resistance against contact with a substrate and high adhesion to the substrate.
    Type: Application
    Filed: December 7, 2010
    Publication date: March 31, 2011
    Inventors: Jong-Wuk Park, Min-Seo Kim, Jong-Taik Lee
  • Publication number: 20110070444
    Abstract: Disclosed is a glass flake (10) having improved heat resistance and improved chemical durability, which is composed of a glass base material satisfying, as expressed in mass %, 65?SiO2?70, 5?Al2O3?15, 1?MgO?10, 10?CaO?25 and 0.1?(Li2O+Na2O+K2O)?4. The temperature difference ?T obtained by taking the devitrification temperature of the glass base material from the working temperature thereof is preferably within the range of 0° C. to 200° C. The glass transition temperature of the glass base material is preferably within the range of 580° C. to 800° C. Furthermore, it is desirable that the value of ?W, which serves as an index for the acid resistance of the glass base material forming the glass flake (10), is within the range of 0.05 to 0.8 mass %.
    Type: Application
    Filed: May 28, 2009
    Publication date: March 24, 2011
    Applicant: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Kosuke Fujiwara, Akihiro Koyama
  • Publication number: 20110064951
    Abstract: Disclosed is a glass flake (10) having improved heat resistance and improved chemical durability, which is composed of a glass base material satisfying, as expressed in mass %, 60?SiO2?70, 5?Al2O3?15, 1?MgO?10, 10?CaO?25 and 4<(Li2O+Na2O+K2O)<9. The temperature difference ?T obtained by taking the devitrification temperature of the glass base material from the working temperature thereof is preferably within the range of 0-200° C. The glass transition temperature of the glass base material is preferably within the range of 560-750° C. It is desirable that the value of ?W, which serves as an index for the acid resistance of the glass base material, is within the range of 0.05-1.2 mass %.
    Type: Application
    Filed: May 28, 2009
    Publication date: March 17, 2011
    Applicant: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Kosuke Fujiwara, Akihiro Koyama
  • Publication number: 20110030423
    Abstract: The invention is directed to veneer ceramics for dental restorations of framework ceramics comprising yttrium-stabilized zirconium dioxide. It is the object of the invention to make possible a translucent veneer ceramic which has high flexural strength as well as excellent adhesion to the framework ceramic of yttrium-stabilized zirconium dioxide. According to the invention, this object is met in a veneer ceramic for dental restorations made of yttrium-stabilized zirconium dioxide which is produced from the following components: a) SiO2 58.0-74.0 percent by weight b) Al2O3 ?4.0-19.0 percent by weight c) Li2O ?5.0-17.0 percent by weight d) Na2O ?4.0-12.0 percent by weight e) ZrO2 ?0.5-6.0 percent by weight.
    Type: Application
    Filed: March 6, 2008
    Publication date: February 10, 2011
    Inventors: Martina Johannes, Roland Ehrt
  • Patent number: 7884055
    Abstract: A method and apparatus for manufacturing ceramic microspheres from industrial slag. The microspheres have a particle size of about 38 microns to about 150 microns. The microspheres are used to create a cement slurry having a density of at least about 11 lbs/g. The resultant cement slurry may then be used to treat subterranean wells.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: February 8, 2011
    Assignee: Intevep, S.A.
    Inventors: George Quercia, Yibran Perera, Aiskely Blanco, Fedymar Pereira
  • Patent number: 7836727
    Abstract: A method of cutting a glass substrate to form a plurality of flat panel displays. The method includes forming a scribe line or a line of weakness on a surface of a mother material; treating the mother material with chemical to further weaken the mother material; and cutting the mother material. The scribe line may be formed using a masking technique. The mother material may be treated with chemical by putting the mother material into a chemical solution. Alternatively, the chemical may be sprayed, blown, or exposed to the mother material. The cutting of the mother material may be done by applying mechanical and/or thermal stress along the scribe line.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: November 23, 2010
    Assignee: Nishiyama Stainless Chemical Co., Ltd.
    Inventor: Tomohiro Nishiyama
  • Patent number: 7803730
    Abstract: A solid state particle agglomerate and method for producing the solid state particle agglomerate are provided. The alkaline earth metal source material, aluminum source material and silicon source material that comprise the solid state particle agglomerate are uniformly distributed and in close proximity within the solid state particle agglomerate, enabling the solid state particle agglomerate to form glass in a more energy efficient manner when heated.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: September 28, 2010
    Assignee: Specialty Minerals (Michigan) Inc.
    Inventors: John Albert Hockman, Stephen Andrew Hrizuk
  • Patent number: 7712335
    Abstract: The aim of the invention is to improve a known quartz glass cylinder for the production of an optical component, comprising an inner drilling, which is mechanically machined to size and provided with an etched structure by means of an etching treatment, subsequent to the mechanical machining, such that in the application thereof for production of pre-forms and optical fibers, few bubbles arise along the boundary surface between core and sleeve. Said aim is achieved, whereby the etched structure comprises striations with a maximum depth of 2.0 mm and a maximum width of 100 ?m.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: May 11, 2010
    Assignee: Heraeus Quarzglas GmbH & Co. KG
    Inventor: Heinz Fabian
  • Patent number: 7197896
    Abstract: Methods for making glasses and glass-ceramics comprising Al2O3 and SiO2. Glasses made according to the present invention can be made, formed as, or converted into glass beads, articles (e.g., plates), fibers, particles, and thin coatings. Some embodiments of glass-ceramic particles made according to the present invention can be are particularly useful as abrasive particles.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: April 3, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Ahmet Celikkaya, Thomas J. Anderson
  • Patent number: 6832493
    Abstract: The present invention relates to a method for forming an optical device. The method includes providing a glass aggregate. Typically, the glass aggregate is a mixture of fine glass soot particles and coarser ground or milled glass powder. The glass particles are mixed with a liquid to form a slurry which is cast in a mold to form a porous pre-form. Subsequently, the porous pre-form is consolidated into a glass object by heating the pre-form at a relatively high temperature. The method of the present invention produces optical components having substantially no striae. As a result, scattering is substantially reduced when EUV light is reflected from a component produced from the optical blank.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: December 21, 2004
    Assignee: Corning Incorporated
    Inventors: Bradley F. Bowden, Kenneth E. Hrdina, John F. Wight, Jr., Chunzhe C. Yu
  • Publication number: 20040134230
    Abstract: Dental glass powders, methods for producing the powders and dental compositions including the glass powders. The powders preferably have a well-controlled particle size, narrow size distribution and a spherical morphology. The method includes forming the particles by a spray pyrolysis technique. The invention also includes dental filler and restorative compositions that include the glass powders.
    Type: Application
    Filed: September 8, 2003
    Publication date: July 15, 2004
    Inventors: Toivo T. Kodas, Mark J. Hampden-Smith, Quint H. Powell, James H. Brewster, Daniel J. Skamser, Klaus Kunze, Paolina Atanassova, Paul Napolitano
  • Patent number: 6758062
    Abstract: The present invention intends to provide a manufacturing method for a plasma display panel, so as to overcome problems associated with a withstanding voltage of a dielectric glass layer. Glass particles have angular shapes after grinding with a grinder, but as the surface of them has been melted, they are converted into spheroids. Those glass particles can get wet evenly, so that a binder evenly adheres to the surface of a glass particle when a glass paste including the glass particles is applied to the surface of a substrate. In this case, there is a scarce possibility for a gas, generated by baking the binder, to remain in the form of bubbles in a formed dielectric glass layer. There are fewer bubbles remaining in a completed dielectric glass layer than in a dielectric glass layer than in a glass layer made from angular glass particles.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: July 6, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Taku Watanabe, Masaki Aoki, Shigeo Suzuki
  • Patent number: 6742364
    Abstract: A method of manufacturing a micro molten glass droplet, has the steps of, colliding a molten glass droplet with a micro through hole formed in a plate-shaped member; and pushing out at least part of the glass droplet to a reverse surface of the micro through hole as a micro droplet, thereby forming a glass droplet with a diameter of not more than 5 mm.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: June 1, 2004
    Assignee: Minolta Co., Ltd.
    Inventor: Shinichi Nishikawa
  • Publication number: 20030131628
    Abstract: A process for stably and efficiently producing quality glass articles such as preforms at high yields, and a process for producing an optical device from the preform obtained by the above process.
    Type: Application
    Filed: December 12, 2002
    Publication date: July 17, 2003
    Inventors: Akira Murakami, Katsumi Utsugi, Yoshinori Iguchi, Masahiro Yoshida, Yoshikane Shinkuma, Atsushi Watabe
  • Publication number: 20020053223
    Abstract: A method of manufacturing a micro molten glass droplet, has the steps of, colliding a molten glass droplet with a micro through hole formed in a plate-shaped member; and pushing out at least part of the glass droplet to a reverse surface of the micro through hole as a micro droplet, thereby forming a glass droplet with a diameter of not more than 5 mm.
    Type: Application
    Filed: August 17, 2001
    Publication date: May 9, 2002
    Inventor: Shinichi Nishikawa
  • Patent number: 6279351
    Abstract: A method for making glass and particularly ceramic frits, comprising the steps of: introducing in a wet grinding unit, after a metering step according to chosen proportions, materials which constitute a mixture to be melted, to produce a slurry; screening and collecting said slurry in a storage tank; introducing the collected slurry in a melting furnace to make a liquid component of the slurry evaporate; and forming a melted paste of vitreous material, adapted to be converted into a ceramic frit.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: August 28, 2001
    Assignee: Sacmi Cooperativa Meccanici Imola S.c.r.l.
    Inventors: Andrea Bresciani, Pierugo Acerbi