C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
C03C 3/085 (2006.01) C03C 3/091 (2006.01) G02F 1/1333 (2006.01)
Patent
CA 2143035
A flat panel display comprising an aluminosilicate glass panel that exhibits a strain point higher than 640°C, a weight loss less than 20 mg/cm2 after immersion for 24 hours in an aqueous 5% by weight HCl solution at 95°C, a CTE in the range of 31- 57x10-7/°C, is nominally free of alkali metal oxides and has a composition consisting essentially of, as calculated in percent by weight on an oxide basis, 49-67 % SiO2, at least 6% Al2O3, the Al2O3 being 6-14% in conjunction with 55-67% SiO2 and 16-23%in conjunction with 49-58% SiO2, SiO2+Al2O3 > 68%, 0-15% B2O3, at least one alkaline earth metal oxide selected from the group consisting of, in the proportions indicated, 0-21% BaO, 0-15% SrO, 0-18% CaO, 0-8% MgO and 12-30% BaO+CaO+SrO+MgO.
Moffatt Dawne M.
Neubauer Dean V.
Corning Incorporated
Gowling Lafleur Henderson Llp
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