Intermediate to high CTE glasses and glass articles comprising the same
First Claim
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1. A glass composition, wherein the glass composition comprises:
- about 65 mol % to about 73 mol % SiO2 about 5 mol % to about 11 mol % Al2O3 about 4 mol % to about 11 mol % B2O3 0.09 mol % to about 0.5 mol % Na2Oabout 2 mol % to about 13 mol % K2O0 mol % to about 7 mol % MgO>
0 mol % to about 9 mol % CaOabout 2 mol % to about 6 mol % SrO,>
0 mol % to about 1 mol % BaO, andabout 5 mol % to about 16 mol % R′
O, wherein R′
O comprises the mol % of MgO, CaO, SrO, and BaO in the composition.
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Abstract
Intermediate to high CTE glass compositions and laminates formed from the same are described. The glasses described herein have properties, such as liquidus viscosity or liquidus temperature, which make them particularly well suited for use in fusion forming processes, such as the fusion down draw process and/or the fusion lamination process. Further, the glass composition may be used in a laminated glass article, such as a laminated glass article formed by a fusion laminate process, to provide strengthened laminates via clad compression as a result of CTE mismatch between the core glass and clad glass.
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Citations
17 Claims
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1. A glass composition, wherein the glass composition comprises:
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about 65 mol % to about 73 mol % SiO2 about 5 mol % to about 11 mol % Al2O3 about 4 mol % to about 11 mol % B2O3 0.09 mol % to about 0.5 mol % Na2O about 2 mol % to about 13 mol % K2O 0 mol % to about 7 mol % MgO >
0 mol % to about 9 mol % CaOabout 2 mol % to about 6 mol % SrO, >
0 mol % to about 1 mol % BaO, andabout 5 mol % to about 16 mol % R′
O, wherein R′
O comprises the mol % of MgO, CaO, SrO, and BaO in the composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A glass composition, wherein the glass composition consists essentially of:
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about 65 mol % to about 73 mol % SiO2 about 5 mol % to about 11 mol % Al2O3 about 4 mol % to about 11 mol % B2O3 0.09 mol % to about 0.5 mol % Na2O about 2 mol % to about 13 mol % K2O 0 mol % to about 7 mol % MgO >
0 mol % to about 9 mol % CaOabout 2 mol % to about 6 mol % SrO, >
0 mol % to about 1 mol % BaO, andabout 5 mol % to about 16 mol % R′
O, wherein R′
O comprises the mol % of MgO, CaO, SrO, and BaO in the composition. - View Dependent Claims (14, 15, 16, 17)
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Specification
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Current AssigneeCorning Incorporated
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Original AssigneeCorning Incorporated
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InventorsKiczenski, Timothy James, Mauro, John Christopher, Pierson-Stull, Michelle Diane, Schaut, Robert Anthony, Venkataraman, Natesan
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Primary Examiner(s)Bolden, Elizabeth A
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Application NumberUS14/458,565Publication NumberTime in Patent Office650 DaysField of SearchUS Class Current1/1CPC Class CodesB32B 17/00 Layered products essentiall...B32B 17/06 comprising glass as the mai...B32B 2457/20 Displays, e.g. liquid cryst...C03B 17/02 Forming molten glass coated...C03C 13/046 Multicomponent glass compos...C03C 3/085 containing an oxide of a di...C03C 3/087 containing calcium oxide, e...C03C 3/091 containing aluminiumY02P 40/57 Improving the yield, e-g- r...
