And Chromium, Nickel, Or Cobalt Patents (Class 501/71)
  • Patent number: 11780770
    Abstract: Glass elements are provided that include a coating and a sheet-like glass substrate. The sheet-like glass substrate has a first surface and a second surface opposite the first surface. The coating is disposed in at least some areas of at least one of the first and second surfaces. The coating is an inorganic glass-based coating that includes at least one glassy component; at least one pigment comprising pigment particles; and a filler. The filler is inorganic and includes filler particles with a d50 value, based on an equivalent diameter, of at least 0.1 ?m and less than 10 ?m.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: October 10, 2023
    Assignee: SCHOTT AG
    Inventors: Ricarda Krechel, Vera Steigenberger, Michael Schwall, Daniel Caldwell, Ioannis Neitzel, Kurt Nattermann
  • Patent number: 11746038
    Abstract: Compounds, compositions, articles, devices, and methods for the manufacture of light guide plates and back light units including such light guide plates made from glass. In some embodiments, light guide plates (LGPs) are provided that have similar or superior optical properties to light guide plates made from PMMA and that have exceptional mechanical properties such as rigidity, CTE and dimensional stability in high moisture conditions as compared to PMMA light guide plates.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: September 5, 2023
    Assignee: Corning Incorporated
    Inventors: Melissann Marie Ashton-Patton, Adam James Ellison, Ellen Anne King
  • Patent number: 11702359
    Abstract: An interlayer film for laminated glass of the present invention comprises at least an absorption region in which a skin absorption energy rate (X1) of a laminated glass is 25% or less, provided that the laminated glass is produced using two clear glass plates having a solar transmittance of 87.3% based on JIS R 3106.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: July 18, 2023
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Kazuhiko Nakayama, Yuusuke Oota, Atsushi Nohara, Moyuru Okajima, Kinryou Chou
  • Patent number: 11667555
    Abstract: A method of producing glass using submerged combustion melting is disclosed. The method includes introducing a vitrifiable feed material into a glass melt contained within a submerged combustion melter. The glass melt contained in the melter has a redox ratio defined as a ratio of Fe2+ to total iron in the glass melt. The method further includes combusting a combustible gas mixture supplied to each of the submerged burners to produce combustion products, and discharging the combustion products directly into the glass melt. Still further, the method includes adjusting the redox ratio of the glass melt by controlling one or more operating conditions of the submerged combustion melter selected from (1) an oxygen-to-fuel ratio of the combustible gas mixture supplied to each of the submerged burners, (2) a residence time of the glass melt, and (3) a gas flux through the glass melt.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: June 6, 2023
    Assignee: Owens-Brockway Glass Container Inc.
    Inventors: Udaya Vempati, William Pinc
  • Patent number: 11634353
    Abstract: To provide a glass plate for a window material and a window comprising the glass plate, which are less likely to be a barrier to radio transmitting/receiving in use of a radio-utilizing apparatus, and a radio communication apparatus comprising the glass plate. A glass plate having a radio transmittance of at least 20% at a frequency of 100 GHz as calculated as 18 mm thickness, a window comprising the glass plate, and a radio communication apparatus comprising the glass plate.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: April 25, 2023
    Assignee: AGC Inc.
    Inventors: Eriko Maeda, Takato Kajihara, Kensuke Nagai, Yutaka Kuroiwa, Osamu Kagaya, Ryuta Sonoda, Hiroyuki Hijiya
  • Patent number: 11590829
    Abstract: A glass structure for a vehicle includes an outer layer of glass, an inner layer of glass, and an interlayer stack disposed between opposing surfaces of the outer layer of glass and the inner layer of glass. The interlayer stack includes at least two interlayer substrates and at least one of the interlayer substrates includes a decorative treatment. In another example, the interlayer stack includes at least two interlayer substrates and at least one of the interlayer substrates includes a functional component.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: February 28, 2023
    Assignee: Tesla, Inc.
    Inventors: William S. Sweney, Mike Laurin, Erin Mathews, Michael Pilliod
  • Patent number: 11485676
    Abstract: Glass compositions include niobia (Nb2O5), phosphorus oxide (P2O5) and titania (TiO2) as essential components and may optionally include calcium oxide (CaO), potassium oxide (K2O), barium oxide (BaO), sodium oxide (Na2O), lithium oxide (Li2O), magnesia (MgO), zinc oxide (ZnO) and other components. The glasses may be characterized by high refractive index at 587.56 nm at comparably low density at room temperature.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: November 1, 2022
    Assignee: Corning Incorporated
    Inventors: Bruce Gardiner Aitken, Jian Luo, Lina Ma, Alexander I Priven
  • Patent number: 11479499
    Abstract: Glass compositions include phosphorus oxide (P2O5), niobia (Nb2O5), titania (TiO2), potassium oxide (K2O) and calcium oxide (CaO) as essential components and may optionally include barium oxide (BaO), sodium oxide (Na2O), lithium oxide (Li2O), tungsten oxide (WO3), bismuth oxide (Bi2O3), tantalum oxide (Ta2O5), silica (SiO2) and other components. The glasses may be characterized by high refractive index at 587.56 nm at comparably low density at room temperature.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: October 25, 2022
    Assignee: Corning Incorporated
    Inventors: Bruce Gardiner Aitken, Jian Luo, Lina Ma, Alexander I Priven
  • Patent number: 11186069
    Abstract: The invention concerns a trim element for a motor vehicle comprising at least one glass sheet having an absorption coefficient lower than 5 m?1 in the wavelength range from 750 to 1050 nm and having an external and an internal faces. According to the present invention, an infrared-based remote sensing device in the wavelength range from 750 to 1050 nm, is placed behind the internal face of the glass sheet.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: November 30, 2021
    Assignee: AGC GLASS EUROPE
    Inventors: Nicolas Fedullo, Thomas Lambricht, Yannick Sartenaer, Patrick Ayoub, Francois Boland
  • Patent number: 10556821
    Abstract: A laminated vehicle window has different glass substrates and a low-emissivity (low-E) coating on an interior surface thereof, so that the low-E coating is to be located adjacent and exposed to the vehicle interior. In certain example embodiments, the low-E coating includes a transparent conductive oxide (TCO) layer of a material such as indium-tin-oxide (ITO). In certain example embodiments, the exterior glass substrate contains more iron, and is thus more absorbing of IR radiation, than the interior glass substrate.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: February 11, 2020
    Assignee: GUARDIAN GLASS, LLC
    Inventors: Robert A. Vandal, Jim St. Jean
  • Patent number: 10406783
    Abstract: A laminated glazing includes (i) a first outer sheet of glass; (ii) an electrically powered functional film; (iii) an infrared reflecting means arranged between the first sheet of glass and the functional film; (iv) at least one first thermoplastic insert arranged between the infrared radiation reflecting means and the functional film; and (v) a second outer sheet of glass. The laminated glazing includes at least the first outer sheet with infrared reflection RIRV so that RIRV?1.087*TLV, where TLV is the light transmission of the sheet of glass, and the infrared reflecting means is characterized by light transmission TLC so that TLC?1.3*TIRC, where TIRC is the infrared transmission of the infrared radiation reflecting means.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: September 10, 2019
    Assignee: AGC GLASS EUROPE
    Inventors: Renaud Hubert, Yannick Sartenaer, Francois Boland, Thomas Lambricht, Benoit Domercq, Audrey Dogimont, Tanguy Timmermans
  • Patent number: 10391744
    Abstract: The invention relates to laminated glazing comprising a substrate, in particular a transparent substrate, optionally colored, coated with an infrared-reflecting layer and capable of being used as glazing in buildings or in vehicles. The coated substrate is made up of the combination of a glass substrate in which the composition has a redox of less than 15%, characterized by infrared reflection RIRV so that RIRV?1.087*TLV, wherein TLV is the light transmission of the glass, and an infrared reflecting layer characterized by light transmission TLC so that TLC?1.3*TIRC, wherein TIRC is the infrared transmission of the layer.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: August 27, 2019
    Assignee: AGC GLASS EUROPE
    Inventors: Thomas Lambricht, Jean-Michel Depauw, Ingrid Marenne, Francois Boland, Audrey Dogimont, Aline Degand
  • Patent number: 10392292
    Abstract: The invention relates to substrates, in particular to transparent substrates, optionally colored, coated with an infrared-reflecting layer and capable of being used as glazing in buildings or in vehicles. Said coated substrates are made up of the combination of a glass substrate in which the composition has a redox of less than 15%, characterized by infrared reflection RIRV so that RIRV?1.087*TLV, wherein TLV is the light transmission of the glass, and an infrared reflecting layer characterized by light transmission TLC so that TLC?1.3*TIRC, wherein TIRC is the infrared transmission of the layer.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: August 27, 2019
    Assignee: AGC GLASS EUROPE
    Inventors: Thomas Lambricht, Jean-Michel Depauw, Ingrid Marenne, Francois Boland, Audrey Dogimont, Aline Degand, Kadosa Hevesi
  • Patent number: 9957189
    Abstract: A heat-absorbing glass plate containing iron, tin, selenium, cobalt and sulfur, where the mass ratio of divalent iron as calculated as Fe2O3 to total iron as calculated as Fe2O3 is at least 55%, the ratio Tv/Te of the visible light transmittance Tv (by illuminant A, 2° visual field) as defined in JIS R3106 (1998) calculated as 4 mm thickness of the glass plate to the solar transmittance Te as defined in JIS R3106 (1998) calculated as 4 mm thickness of the glass plate, is at least 1.5, the visible light transmittance Tv (by illuminant A, 2° visual field) is at most 65% as defined in JIS R3106 (1998) calculated as 4 mm thickness of the glass plate, and the excitation purity Pe is at most 7% as defined in JIS Z8701 (1999) calculated as 4 mm thickness of the glass plate.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: May 1, 2018
    Assignee: Asahi Glass Company, Limited
    Inventors: Yuya Shimada, Yusuke Arai
  • Patent number: 9950946
    Abstract: The invention relates to a glass sheet having high transmission of infrared (IR) radiation. More specifically, the invention relates to a glass sheet having a composition which comprises, in a content expressed as percentages by total weight of glass: SiO2 55-85%; Al2O3 0-30%; B2O3 0-20%; Na2O 0-25%; CaO 0-20%; MgO 0-15%; K2O 0-20%; BaO 0-20%; Total iron (expressed in the form of Fe2O3) 0.002-0.06%, a chromium content (expressed in the form of Cr2O3) ranging from 0.0015% to 1% and a cobalt content (expressed in the form of Co) ranging from 0.0001% to 1%. By virtue of its high transmission of IR radiation, the glass sheet according to the invention can advantageously be used in a device using a technology requiring very good transmission of IR radiation, whether through the main faces or starting from their sheared edge (for example, a screen or panel or pad, the glass sheet defining a touch surface).
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: April 24, 2018
    Assignees: AGC GLASS EUROPE, ASAHI GLASS CO LTD
    Inventors: Audrey Dogimont, Thomas Lambricht
  • Patent number: 9878936
    Abstract: An ultraviolet absorbing glass article comprising, as a glass matrix composition in mass % based on oxides, from 66 to 75% of SiO2, from 10 to 20% of Na2O, from 5 to 15% of CaO, from 0 to 6% of MgO, from 0 to 5% of Al2O3, from 0 to 5% of K2O, from 0.13 to 0.9% of FeO, at least 0.8% and less than 2.4% of total iron as represented by Fe2O3, and more than 1% and at most 5% of TiO2, containing from 100 to 500 mass ppm of CoO, from 0 to 70 mass ppm of Se and from 0 to 800 mass ppm of Cr2O3 in a total content of CoO, Se and Cr2O3 of less than 0.1 mass % based on the total content of components in the glass matrix composition, and having an ultraviolet transmittance of at most 2% at a thickness of 3.5 mm.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: January 30, 2018
    Assignee: Asahi Glass Company, Limited
    Inventor: Shuichi Akada
  • Patent number: 9815734
    Abstract: Optical glass filters are provided that include a filter glass showing an optimized transmission spectrum which has a high transmission in the wave length range of 300 to 400 nm and a very low transmission in the visible wave length range. The glass has an especially high optical quality and is excellently suitable as an optical filter for generating UV light without a proportion of visible light. The optical glass filters include the components nickel oxide and cobalt oxide.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: November 14, 2017
    Assignee: SCHOTT AG
    Inventors: Lothar Niessner, Ralf Biertuempfel
  • Patent number: 9725354
    Abstract: Latent colorant material compositions, soda-lime-silica glass compositions, and related methods of manufacturing color-strikable glass containers. The latent colorant material compositions may be introduced into a plurality of base glass compositions having redox numbers in the range of ?40 to +20 to produce color-strikable glass compositions and color-strikable glass containers. The latent colorant material compositions introduced into the base glass compositions include a mixture of cuprous oxide (Cu2O), stannous oxide (SnO), bismuth oxide (Bi2O3), and carbon (C). After formation, the color-strikable glass containers may be heat-treated to strike red or black therein.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: August 8, 2017
    Assignee: Owens-Brockway Glass Container Inc.
    Inventors: Edward Ordway, Terence K Howse, Daniel Baker, Stephen Barton, Carol A. Click
  • Patent number: 9434635
    Abstract: A tinted float glass includes a base glass portion comprising: SiO2 68-75 wt % Al2O3 0-3 wt % Na2O 11-15 wt % K2O 0-3 wt % CaO 6-11 wt % MgO 2-6 wt % and a colorant portion comprising iron, cobalt and selenium in the following ranges: Fe2O3 0.30-0.40 wt % Co3O4 46-60 ppm Se 1-5 ppm The tinted float glass is blue-grey in transmitted color, and is suitable for architectural, automotive, and other applications. A particularly preferred embodiment of the glass has a colorant portion comprising 0.31-0.33% Fe2O3, 51-55 ppm Co3O4 and 2-4 ppm selenium, together with a light transmission (Ill D65) of 59 to 62%, a dominant wavelength of 482 nm, a color purity of 7 to 8%, and a performance of 3 to 7%; all in a sample 6.0 mm thick. The glass may be coated with a low emissivity coating.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: September 6, 2016
    Assignee: PILKINGTON GROUP LIMITED
    Inventor: Martin James Horsley
  • Patent number: 9120695
    Abstract: The present invention relates to a dark neutral gray glass composition with a low transmittance, and a glass formed therefrom, and more specifically, to a dark neutral gray glass composition with a low transmittance and a low color purity, wherein an appropriate amount of Fe2O3, CoO and Se are used as a colorant component, and the FeO content in Fe2O3 and the CoO and Se relative content are delimited by a predetermined range, so as to lower the transmittance of visible rays, solar energy and ultraviolet rays and color purity, thereby protecting privacy in a vehicle, a building and the like, enabling harmony among the various colors thereof, and protecting an interior material and people from ultraviolet rays, and to a glass formed therefrom.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: September 1, 2015
    Assignee: KCC Corporation
    Inventors: Yun Hee Lee, Yong Yi Kim, Jae Chung Lim
  • Patent number: 9012343
    Abstract: There is provided a glass for chemical strengthening having a black color tone and excelling in characteristics preferred for the purposes of housing or decoration of an electronic device, that is, bubble quality, strength, and light transmittance characteristics. A glass for chemical strengthening contains, in mole percentage based on following oxides, 55% to 80% of SiO2, 3% to 16% of Al2O3, 0% to 12% of B2O3, 5% to 16% of Na2O, 0% to 4% of K2O, 0% to 15% of MgO, 0% to 3% of CaO, 0% to 18% of ?RO (where R represents Mg, Ca, Sr, Ba or Zn), 0% to 1% of ZrO2, and 0.1% to 7% of a coloring component having at least one metal oxide selected from the group consisting of oxides of Co, Mn, Fe, Ni, Cu, Cr, V and Bi.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: April 21, 2015
    Assignee: Asahi Glass Company, Limited
    Inventors: Hiroyuki Yamamoto, Kazuhide Kuno
  • Patent number: 8962503
    Abstract: To provide a colored glass plate, which uses sodium sulfate (Na2SO3) as a refining agent and which is capable of stably maintaining the mass percentage of divalent iron calculated as Fe2O3 in the total iron calculated as Fe2O3 at a high level, while suppressing development of an amber color that is derived from sodium sulfate. A colored glass plate made of alkali-containing silica glass containing elements of iron, tin and sulfur, wherein the percentage of the total sulfur calculated as SO3 is at least 0.025% as represented by mass percentage based on oxides, the percentage of divalent iron calculated as Fe2O3 in the total iron calculated as Fe2O3 is from 60 to 80% as represented by mass percentage, and the percentage of divalent tin calculated as SnO2 in the total tin calculated as SnO2 is at least 0.1% as represented by mol percentage.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: February 24, 2015
    Assignee: Asahi Glass Company, Limited
    Inventors: Kensuke Nagai, Yuichi Suzuki, Terutaka Maehara
  • Patent number: 8901021
    Abstract: A vehicle roof window includes an uncoated glass transparency having an Lta in the range of greater than 0% to 10%, and a solar factor in the range of equal to or less than 30%, measured at a thickness in the range of 3.6-4.1 millimeters (“mm”), e.g. at a thickness of 3.6 mm, 3.9 mm or 4.1 mm. The solar factor is determined in accordance to International Organization for Standardization (“ISO”) No. 13837.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: December 2, 2014
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Larry J. Shelestak, James P. Thiel
  • Publication number: 20140309099
    Abstract: A glass has a basic soda-lime-silica glass portion, and a colorant portion including total iron as Fe2O3 selected from the group of total iron as Fe2O3 in the range of greater than zero to 0.02 weight percent; total iron as Fe2O3 in the range of greater than 0.02 weight percent to less than 0.10 weight percent and total iron as Fe2O3 in the range of 0.10 to 2.00 weight percent; redox ratio in the range of 0.2 to 0.6, and tin and/or tin compounds, e.g. SnO2 greater than 0.000 to 6.0 weight percent. In one embodiment of the invention, the glass has a tin side and an opposite air side, wherein the tin side of the glass is supported on a molten tin bath during forming of the glass. The tin concentration at the tin side of the glass is greater than, less than, or equal to the tin concentration in “body portion” of the glass. The “body portion” of the glass extending from the air side of the glass toward the tin side and terminating short of the tin side of the glass.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 16, 2014
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventors: Mark O. Naylor, Lawrence E. Jansen, Larry J. Shelestak
  • Patent number: 8841222
    Abstract: There is provided a glass fiber comprising the SiO2 content is 57.0 to 63.0% by weight; the Al2O3 content is 19.0 to 23.0% by weight; the MgO content is 10.0 to 15.0% by weight; the CaO content is 4.0 to 11.0% by weight; and the total content of SiO2, Al2O3, MgO and CaO is 99.5% by weight or higher based on the total weight.
    Type: Grant
    Filed: May 30, 2011
    Date of Patent: September 23, 2014
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Takashi Nonaka, Hiroshi Kanno, Takamichi Inaba
  • Patent number: 8785338
    Abstract: Disclosed is a glass with low solar transmittance, which is characterized by that it has a basic composition of soda-lime-silica glass, that it contains as coloring components 0.70-1.70 mass % of Fe2O3 (total iron in terms of ferric iron), 0.15-0.45 mass % of FeO (ferrous iron), 0-0.8 mass % of TiO2, 100-350 ppm of CoO, 0-60 ppm of Se, 100-700 ppm of Cr2O3, and 3-150 ppm of MnO, that it has a ratio (Fe2+/Fe3+) of ferrous iron to ferric iron of 0.20-0.80. This glass has superior ultraviolet absorbing performance and infrared absorbing performance (heat insulation performance) and an appropriate transparency.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: July 22, 2014
    Assignee: Central Glass Company, Limited
    Inventors: Tatsuya Tsuzuki, Takahiro Mori, Naoko Yoshimura, Kota Yoshimura, Marin Yoshimura, Karen Yoshimura
  • Publication number: 20140117240
    Abstract: A soda-lime-silica glass container and related methods of manufacturing. A black-strikable glass composition having a base glass portion and a latent colorant portion is prepared. The base glass portion includes soda-lime-silica glass materials and one or more blue colorant materials, and the latent colorant portion includes cuprous oxide (Cu2O), stannous oxide (SnO), bismuth oxide (Bi2O3), and carbon (C). Glass containers may be formed from the black-strikable glass composition, and these glass containers may be heated to a temperature greater than 600 degrees Celsius to strike black therein. The glass containers formed from the black-strikable glass composition may be inspected—before or after striking—by infrared inspection equipment.
    Type: Application
    Filed: November 1, 2012
    Publication date: May 1, 2014
    Applicant: Owens-Brockway Glass Container Inc.
    Inventor: Owens-Brockway Glass Container Inc.
  • Patent number: 8669197
    Abstract: A grey glass composition employing in its colorant portion at least iron (Fe2O3/FeO), cobalt and selenium is provided. The glass allows high visible transmission, and good IR absorption, while at the same time achieving desired grey color. In certain example embodiments, the colorant portion includes, or may consist essentially of: total iron (expressed as Fe2O3) 0.20 to 0.35% selenium 0.0002 to 0.0020% cobalt oxide 0.0025 to 0.0060% titanium oxide 0 to 1.0% glass redox: <=.27; or 0.10 to 0.25.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: March 11, 2014
    Assignee: Guardian Industries Corp.
    Inventors: Anna Broughton, Richard Hulme, Scott V. Thomsen
  • Patent number: 8664132
    Abstract: A high transmittance glass includes: SiO2 in the range of 65 to 75 weight percent; Na2O in the range of 10 to 20 weight percent; CaO in the range of 5 to 15 weight percent; MgO in the range of 0 to 5 weight percent; Al2O3 in the range of 0 to 5 weight percent; K2O in the range of 0 to 5 weight percent; MnO2 in the range of 0.035 to 0.6 weight percent; FeO in the range of 0.0010 to 0.0030 weight percent; and Fe2O3 (total iron) in the range of 0.001 to 0.03 weight percent. The glass has a redox ratio in the range of 0.1 to 0.4.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: March 4, 2014
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Larry J. Shelestak
  • Publication number: 20140017499
    Abstract: Glass for chemical strengthening, comprising 0.001% to 5% of Se in terms of molar percentage as a coloring component in the glass, wherein the glass has a property configured to provide an absolute value of ?a*m with 1.8 or less, the absolute value of ?a*m being a difference ?a*m between a value of chromaticity a* of reflected light by a D65 light source and a value of chromaticity a* of reflected light by an F2 light source, in a L*a*b* color system, the difference being expressed by the following expression (1), ?a*m=a*value(D65 light source)?a*value(F2 light source) ??(1).
    Type: Application
    Filed: July 10, 2013
    Publication date: January 16, 2014
    Inventor: Hiroyuki YAMAMOTO
  • Publication number: 20130274086
    Abstract: The present invention relates to an alkali-free glass having a strain point of 725° C. or higher, an average thermal expansion coefficient at from 50 to 300° C. of from 30×10?7 to 40×10?7/° C., a temperature T2 at which a glass viscosity is 102 dPa·s of 1,710° C. or lower, and a temperature T4 at which a glass viscosity is 104 dPa·s of 1,320° C. or lower, the alkali-free glass including, in terms of mol % on the basis of oxides, SiO2: 66 to 70, Al2O3: 12 to 15, B2O3: 0 to 1.5, MgO: more than 9.5 and 13 or less, CaO: 4 to 9, SrO: 0.5 to 4.5, BaO: 0 to 1, and ZrO2: 0 to 2, in which MgO+CaO+SrO+BaO is from 17 to 21, MgO/(MgO+CaO+SrO+BaO) is 0.4 or more, MgO/(MgO+CaO) is 0.4 or more, MgO/(MgO+SrO) is 0.6 or more, and the alkali-free glass does not substantially contain an alkali metal oxide.
    Type: Application
    Filed: June 7, 2013
    Publication date: October 17, 2013
    Inventors: Tomoyuki TSUJIMURA, Manabu Nishizawa, Akio Koike
  • Patent number: 8551899
    Abstract: The present invention relates to a dark neutral green gray soda-lime glass composition comprising, as a colorant ingredient per 100 weight parts of a base glass composition, 1.4 to 2.5 weight parts of total Fe2O3, 0.02 to 0.04 weight parts of CoO, 0.0001 to 0.004 weight parts of Se, 0.005 to 0.5 weight parts of MnO2, and 0.05 to 1 weight parts of CeO2. The glass composition of the present invention has a visible light transmittance (LTA) of 15% or less, an ultraviolet ray transmittance (Tuv) of 0 to 1%, and a solar transmittance (Tsol) of 15% or less, measured for a reference thickness of 4 mm. As described above, the glass composition of the present invention is excellent in absorbing ultraviolet rays and solar heat, and therefore can be valuably used in privacy glass or a sunroof of a motor vehicle, or in glass used for construction.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: October 8, 2013
    Assignee: KCC Corporation
    Inventors: Yong Yi Kim, Si Moo Lee, Seon Jin Kim, Jin Hyuk Lee
  • Patent number: 8497219
    Abstract: A highly temperature-resistant and chemically resistant glass and a glass fibre which have an improved UV light transmission, and the use thereof in UV-curable composites are disclosed. The glass/glass fibre according to the invention has a transition temperature >920° C., a light transmission of 80-92%, and consists of 58-62% SiO2, 11.0-15.5% Al2O3, 20-25% CaO, 0.1-0.8% MgO, 0.04-1.2% Na2O, 0.1-1.2 K2O, 0.2-1.8% TiO2, 0.05-0.5% Fe2O3 and 0.002-0.085 Cr2O3.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: July 30, 2013
    Inventor: Gerhard Bürger
  • Publication number: 20130154064
    Abstract: A glass composition for protecting a semiconductor junction contains at least SiO2, Al2O3, MO, and nickel oxide, and substantially contains none of Pb, P, As, Sb, Li, Na and K (M in MO indicates one of alkali earth metals).
    Type: Application
    Filed: August 29, 2011
    Publication date: June 20, 2013
    Applicant: SHINDENGEN ELECTRIC MANUFACTURING CO., LTD.
    Inventors: Atsushi Ogasawara, Kazuhiko Ito, Koji Ito
  • Patent number: 8461070
    Abstract: Flat glass composition comprising the following (expressed as percentages by weight): SiO2 60 75%; Al2O3 0 5%; Na2O 10 18%; K2O 0 5.5%; CaO 0 5%; MgO 0-2%; SO3 0 1%; Fe2O3 (total iron)>0.01%; TiO2 0-1% and one or both of: SrO 0-15%; BaO 0-15% with the proviso that the summed amount of SrO and BaO is greater than 4%. A preferred composition comprises: SiO2 65-74%; Al2O3 0-3%; Na2O 13 16%; K2O 0-2%; CaO 1-4.9%; MgO 0-2%; SO3 0-1%; Fe2O3 (total iron)>0.01%; TiO2 0 1%; BaO 4-10%; SrO 0-5%, wherein the summed amount of the alkaline earth metal constituents is in the range 10-13% and the summed amount of the alkali metal constituents is in the range 14-16%. The ferrous level of the glass may be greater than or equal to 28%, its performance in a thickness of 5 mm or less may be greater than or equal to 29 at LTA?70%, and greater than or equal to 27 at LTA?75%, and its liquidus temperature may be less than or equal to 980° C.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: June 11, 2013
    Assignee: Pilkington Group Limited
    Inventors: John Buckett, Keith Haughey, Neil McSporran
  • Patent number: 8455066
    Abstract: An insulating unit having a neutral grey color and a solar heat gain coefficient less than 0.40 includes a clear glass sheet spaced from a coated glass sheet. The coated glass sheet includes a colored glass substrate having a solar infrared reflective coating. The composition of the coated substrate includes a base glass portion and a glass colorant portion, the glass colorant portion including total iron in the range of 0.04 to less than 0.28 weight percent; CoO in the range of 32 to 90 parts per million, and Se in the range of greater than 0 to less than 5.5 parts per million. In one non-limiting embodiment of the invention the glass substrate at a thickness of 0.223 inches has a* chromaticity coordinates of ?3.5 to +2.5 and b* chromaticity coordinates of ?1 to ?15, and a visible light transmittance of 40 to 80%.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: June 4, 2013
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Robert B. Heithoff, Glenn T. Miner
  • Patent number: 8440583
    Abstract: A blue colored, infrared and ultraviolet absorbing glass composition uses a standard soda-lime-silica glass base composition and additionally iron, cobalt, and additional colorants selected from the group of Er2O3, Cr2O3, CuO, NiO, TiO2, Nd2O3 and combinations thereof. The glass of the present invention has a luminous transmittance of up to 60 percent, a dominant wavelength in the range of 480 to 489 nanometers and an excitation purity of at least 8 percent at a thickness of 0.160 inches (4.06 millimeters). The glass composition can form transparent glass panels that have varying limited LTA from one another as panel sets for mounting in automobiles.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: May 14, 2013
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Larry J. Shelestak, Mehran Arbab
  • Patent number: 8361915
    Abstract: The present invention provides a glass composition having a base glass composition, comprising, in weight percentage, from about 0.005 to about 0.08% wt of ferric oxide, from 0.00002 to about 0.0004% wt of Se, from about 0.00003 to about 0.0010% wt of Co3O4, from 0 to about 0.01% wt of CuO, from about 0 to about 0.6 of CeO2, from 0.02 to about 1 of TiO2, and from about 0 to about 2 of NaNO3. The glass having a visible light transmission of at least 87%; a ultraviolet radiation transmittance less than 85%; and a solar direct transmittance of no more than 90%.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: January 29, 2013
    Assignee: Vidrio Plano de Mexico, S.A. de C.V.
    Inventors: José Guadalupe Cid-Aguilar, Roberto Marcos Cabrera-Llanos, Miguel Angel Kiyama-Rodriguez
  • Patent number: 8349455
    Abstract: Glass comprising, as represented by mole percentage based on the following oxides, from 50 to 75% of SiO2, from 1 to 15% of Al2O3, from 6 to 21% of Na2O, from 0 to 15% of K2O, from 0 to 15% of MgO, from 0 to 20% of CaO, from 0 to 21% of ?RO (wherein R is Mg, Ca, Sr, Ba and/or Zn), from 0 to 5% of ZrO2, from 1.5 to 6% of Fe2O3, and from 0.1 to 1% of Co3O4.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: January 8, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Yuki Kondo, Hiroyuki Ohkawa, Makoto Sano, Kazutaka Hayashi, Shusaku Akiba
  • Publication number: 20120309607
    Abstract: The invention relates to glass-ceramics based on the lithium disilicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Application
    Filed: December 23, 2010
    Publication date: December 6, 2012
    Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., DEGUDENT GMBH, VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG
    Inventors: Bernhard Durschang, Jorn Probst, Norbert Thiel, Joachim Bibus, Markus Vollmann, Udo Schusser
  • Patent number: 8298972
    Abstract: This invention relates to a high transmission low iron glass that includes boron oxide. The boron oxide, added to this low iron glass, has the effect of improving glass refining, homogeneity and quality (lower seed count) through its flux action and improves glass optical parameters of green and clear glass through the change in refractive index and surface tension. Boron oxide lends to broader and weaker absorption band of such transition element(s) as iron which additionally improves the transmittance of low iron clear glass in certain example embodiments of this invention. In certain example embodiments, the addition of boron oxide in certain quantities in advantageous in that it improves the chemical durability of the glass by decreasing the USPX (or USPXIII) value of the glass via suppression of the silica, sodium ions in the glass structure.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: October 30, 2012
    Assignees: Guardian Industries Corp., Phoenicia America-Israel (Flat Glass) Ltd.
    Inventors: Kevin R. Fulton, Abraham W. Michaelis, Mario Resch, David Bird, Richard Hulme, Scott V. Thomsen
  • Patent number: 8268741
    Abstract: An insulating unit having a neutral grey color and a solar heat gain coefficient less than 0.40 includes a clear glass sheet spaced from a coated glass sheet. The coated glass sheet includes a colored glass substrate having a solar infrared reflective coating. The composition of the coated substrate includes a base glass portion and a glass colorant portion, the glass colorant portion including total iron in the range of 0.04 to less than 0.28 weight percent; CoO in the range of 32 to 90 parts per million, and Se in the range of greater than 0 to less than 5.5 parts per million. In one non-limiting embodiment of the invention the glass substrate at a thickness of 0.223 inches has a* chromaticity coordinates of ?3.5 to +2.5 and b* chromaticity coordinates of ?1 to ?15, and a visible light transmittance of 40 to 80%.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: September 18, 2012
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Robert B. Heithoff, Glenn T. Miner
  • Publication number: 20120183812
    Abstract: Provided are a glass substrate for information recording media wherein air bubbles can be sufficiently removed, and an information recording medium using the glass substrate. The glass substrate contains 65 to 90 mass % of SiO2+Al2O3+B2O3 (where SiO2 is 45 to 75 mass %, Al2O3 is 1 to 20 mass %, and B2O3 is 0 to 8 mass %), 7 to 20 mass % of R2O (where R represents Li, Na, or K), 0.1 to 12 mass % of R?O (where R? represents Mg, Ca, Sr, Ba, or Zn), and 0.5 to 10 mass % of TiO2+ZrO2. Moreover, the glass substrate contains at least one multivalent element selected from among a group consisting of V, Mn, Ni, Mo, Sn, Ce, and Bi; the molar ratio of the total amount of the oxide of the multivalent element to the total amount of TiO2+ZrO2 is within the range of 0.05 to 0.50.
    Type: Application
    Filed: September 6, 2010
    Publication date: July 19, 2012
    Inventor: Hiroshi Kajita
  • Patent number: 8187988
    Abstract: The invention relates to a glass composition of silica-soda-lime type colored blue which comprises the coloring agents below in a content varying within the following limits, by weight: Fe2O3 (total iron) 0.2 to 0.51% CoO 10 to 50 ppm Cr2O3 10 to 300 ppm CuO 0-400 ppm the glass exhibiting a redox factor of less than 0.35, a dominant wavelength ?D of between 485 and 489 nm, an excitation purity of less than 13% and a selectivity at least equal to 1.1 under a thickness of between 3 and 5 mm. It also relates to the glass sheet obtained from the abovementioned composition, said sheet being intended in particular to form an automobile window or for the construction industry.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: May 29, 2012
    Assignee: Saint-Gobain Glass France
    Inventors: Laurent Teyssedre, Dominique Sachot, Pierre Jeanvoine
  • Patent number: 8187682
    Abstract: An element, particularly a transparent element, including at least one glass element, configured as a protective glass against ionizing radiation and/or UV radiation, wherein at least a portion of the surface of the glass element is covered by a film that includes a substance that can be switched into at least two states.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: May 29, 2012
    Assignee: Schott AG
    Inventors: Bernd Albrecht, Daniel Grimm, Angelika Ullmann, Marten Walther, Ernst-Friedrich Düsing, Horst Schillert, Matthias Anton, Peter Kracht, Stephen Reimann, Susanne Buchner-Nagel
  • Publication number: 20110281099
    Abstract: A method is described for making a float glass convertible into a glass ceramic, by which a largely crystal fault-free glass can be produced. In this method the glass is cooled from a temperature (TKGmax), at which a crystal growth rate is at a maximum value (KGmax), to another temperature (TUEG), at which practically no more crystal growth occurs, with a cooling rate, KR, in ° C. min?1 according to: KR UEG KGmax ? ? ? ? T UEG KGmax 100 · KGmax , wherein ?T=TKGmax?TUEG, and KGmax=maximum crystal growth rate in ?m min?1. The float glass has a thickness below an equilibrium thickness, a net width of at least 1 m and has no more than 50 crystals with a size of more than 50 ?m, especially no crystals with a size of more than 10 ?m, per kilogram of glass within the net width.
    Type: Application
    Filed: July 27, 2011
    Publication date: November 17, 2011
    Inventors: Gerhard Lautenschlaeger, Andreas Langsdorf, Ulrich Lange, Bernd Ruedinger, Klaus Schneider, Michael Jacquorie, Friedrich Siebers, Wolfgang Schmidbauer
  • Patent number: 8034732
    Abstract: An antimicrobial glass is provided which can release a predetermined amount of silver ion rapidly for a long period of time and can provide a predetermined antimicrobial treatment repeatedly to a matter to be antibacterialized during or after washing and which is excellent in discoloration prevention effect and discriminativity, and a method for producing the same is also provided. A tabular antimicrobial glass capable of exerting an antimicrobial effect by releasing silver ions, wherein the maximum diameter (t1) is adjusted within the range of 3 to 30 mm and which contains an inorganic coloring agent as a compounded component, wherein the addition amount of the inorganic coloring agent is adjusted to a value within the range of 0.001 to 0.5% by weight to the total amount.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: October 11, 2011
    Assignee: Koa Glass Co., Ltd.
    Inventors: Yoshinao Kobayashi, Mamoru Kitamura, Shinobu Kanamaru, Kenichi Tanaka
  • Patent number: 8017538
    Abstract: The invention relates to a dark gray soda-lime silicate glass composition which includes a coloring part essentially consisting of the compounds below in contents varying within the following weight limits: Fe2O3 (total iron) 0.7 to 0.95% CoO ?50 to 80 ppm NiO 400 to 700 ppm or Fe2O3 (total iron) 0.7 to 0.95% CoO 200 to 300 ppm NiO 1500 to 1900 ppm? said composition being free of selenium, having a redox of 0.40 or less, and the glass having a light transmission factor (TLA) under illuminant A of 50% or less and an overall energy transmission factor (TE) of less than 45%, these being measured for a thickness of 3.85 mm.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: September 13, 2011
    Assignee: Saint-Gobain Glass France
    Inventors: Laurent Teyssedre, Lionel Homo
  • Patent number: 8017537
    Abstract: The present invention provides a glass article using a glass composition including a base glass composition and colorants. The base glass composition includes, expressed in mass %: 65 to 80% of SiO2; 0 to 5% of Al2O3; 0 to 10% of MgO; 0 to 15% of CaO; 5 to 15% of MgO+CaO; 10 to 18% of Na2O; 0 to 5% of K2O; 10 to 20% of Na2O+K2O; and 0 to 5% of B2O3, and the colorants consist essentially of, expressed in mass %: 0.6% to 1.0% of T-Fe2O3; 0.026 to 0.8% of TiO2; 0 to 2.0% of CeO2; 0.01 to 0.03% of CoO; 0 to 0.0008% of Se; and 0.06 to 0.20% of NiO. The glass article has a grayish color tone, and has a visible light transmittance in a range of 15% to 40%, which is measured with the illuminant A at a thickness of 3.1 mm.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: September 13, 2011
    Assignee: Nippon Sheet Glass Company, Limited
    Inventors: Hiromitsu Seto, Akihiro Koyama, Yukihito Nagashima
  • Publication number: 20110118101
    Abstract: A grey glass composition employing in its colorant portion at least iron (Fe2O3/FeO), cobalt and selenium is provided. The glass allows high visible transmission, and good IR absorption, while at the same time achieving desired grey color. In certain example embodiments, the colorant portion includes, or may consist essentially of: total iron (expressed as Fe2O3) 0.20 to 0.35% selenium 0.0002 to 0.0020% cobalt oxide 0.0025 to 0.0060% titanium oxide 0 to 1.0% glass redox: <=.27; or 0.10 to 0.25.
    Type: Application
    Filed: December 7, 2010
    Publication date: May 19, 2011
    Inventors: Anna Broughton, Richard Hulme, Scott V. Thomsen