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    COLORED ALKALI ALUMINOSILICATE GLASS ARTICLES
    61.
    发明申请
    COLORED ALKALI ALUMINOSILICATE GLASS ARTICLES 有权

    公开(公告)号：US20220356110A1

    公开(公告)日：2022-11-10

    申请号：US17866605

    申请日：2022-07-18

    Applicant: CORNING INCORPORATED

    Inventor： John Christopher Mauro ,  Marcel Potuzak

    IPC: C03C4/02 ,  C03C21/00 ,  C03C3/087 ,  C03C3/11

    Abstract: A glass article including at least about 40 mol % SiO2 and, optionally, a colorant imparting a preselected color is disclosed. In general, the glass includes, in mol %, from about 40-70 SiO2, 0-25 Al2O3, 0-10 B2O3; 5-35 Na2O, 0-2.5 K2O, 0-8.5 MgO, 0-2 ZnO, 0-10% P2O5 and 0-1.5 CaO. As a result of ion exchange, the glass includes a compressive stress (σs) at at least one surface and, optionally, a color. In one method, communicating a colored glass with an ion exchange bath imparts σs while in another; communicating imparts σs and a preselected color. In the former, a colorant is part of the glass batch while in the latter; it is part of the bath. In each, the colorant includes one or more metal containing dopants formulated to impart to a preselected color. Examples of one or more metal containing dopants include one or more transition and/or rare earth metals.

    Optical boroaluminate glasses
    63.
    发明授权
    Optical boroaluminate glasses 有权

    公开(公告)号：US11247934B2

    公开(公告)日：2022-02-15

    申请号：US16243506

    申请日：2019-01-09

    Applicant: Corning Incorporated

    Inventor： Bruce Gardiner Aitken ,  Lina Ma ,  John Christopher Mauro

    IPC: C03C3/145 ,  C03C3/15 ,  C03C3/068 ,  C03C3/064 ,  C03C3/155 ,  C03C13/04

    Abstract: An optical boroaluminate glass article comprises: from greater than or equal to 10.0 mol % to less than or equal to 30.0 mol % Al2O3; from greater than or equal to 10.0 mol % to less than or equal to 55.0 mol % CaO; from greater than or equal to 10.0 mol % to less than or equal to 25.0 mol % B2O3; from greater than or equal to 0.0 mol % to less than or equal to 30.0 mol % SiO2; and from greater than or equal to 1.0 mol % to less than or equal to 20.0 mol % refractive index raising components. The optical boroaluminate glass article has a refractive index of the glass article, measured at 589.3 nm, of greater than or equal to 1.62, and a density of less than or equal to 4.00 g/cm3.

    Transparent silicate glasses with high fracture toughness
    66.
    发明授权
    Transparent silicate glasses with high fracture toughness 有权

    公开(公告)号：US10427972B2

    公开(公告)日：2019-10-01

    申请号：US15650152

    申请日：2017-07-14

    Applicant: CORNING INCORPORATED

    Inventor： Jian Luo ,  John Christopher Mauro

    IPC: C03C3/097 ,  C03C3/095 ,  C03B1/00 ,  H05K5/03

    Abstract: Provided herein are glass based articles comprising SiO2, Al2O3, and two or more metal oxides selected from the group consisting of La2O3, BaO, Ta2O5, Y2O3, and HfO2. The glass based articles typically are characterized by a high fracture toughness (e.g., at least 0.86 MPa*m0.5), a high Young's modulus value (e.g., at least 85 GPa) and/or a stress optical coefficient (SOC) of not more than 3 Brewster (e.g., about 1.3 Brewster to about 2 Brewster). Also provided herein are glass based articles comprising SiO2 and two or more of MxOy, wherein M is Ba, La, Ta, Y, Al or Hf; wherein the total amount of SiO2 is the same or substantially the same as that of a reference glass based article comprising two or more binary compositions of MxOy—SiO2, wherein the reference glass based article has the same molar percentage of each MxOy, and the molar ratio of MxOy to SiO2 in each binary composition is 4/(c*x), wherein c is the number of charges of M.

    BOROSILICATE GLASSES WITH LOW ALKALI CONTENT
    67.
    发明申请
    BOROSILICATE GLASSES WITH LOW ALKALI CONTENT 审中-公开

    公开(公告)号：US20190276350A1

    公开(公告)日：2019-09-12

    申请号：US16425431

    申请日：2019-05-29

    Applicant: CORNING INCORPORATED

    Inventor： Megan Aurora DeLamielleure ,  John Christopher Mauro ,  Charlene Marie Smith ,  Liying Zhang

    IPC: C03C8/02 ,  C03C3/091 ,  H05K5/03 ,  H05K5/00 ,  B32B17/06 ,  C03C3/093

    Abstract: According to one embodiment, a glass may include from about 50 mol. % to about 70 mol. % SiO2; from about 12 mol. % to about 35 mol. % B2O3; from about 4 mol. % to about 12 mol. % Al2O3; greater than 0 mol. % and less than or equal to 1 mol. % alkali metal oxide, wherein Li2O is greater than or equal to about 20% of the alkali metal oxide; from about 0.3 mol. % to about 0.7 mol. % of Na2O or Li2O; and greater than 0 mol. % and less than 12 mol. % of total divalent oxide, wherein the total divalent oxide includes at least one of CaO, MgO and SrO, and wherein a ratio of Li2O (mol. %) to (Li2O (mol. %)+(Na2O (mol. %)) is greater than or equal 0.4 and less than or equal to 0.6. The glass may have a relatively low high temperature resistivity and a relatively high low temperature resistivity.

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