Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Reexamination Certificate
2009-05-08
2011-12-06
Group, Karl (Department: 1731)
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
C501S070000, C065S032100, C065S032500, C065S099200, C065S099300, C065S099400, C065S099500, C065S099600
Reexamination Certificate
active
08071494
ABSTRACT:
The present invention provides a glass substrate for flat panel display in which yellowing occurring in a case of forming silver electrodes on glass substrate surface is inhibited.A glass substrate for flat panel display, which is formed by a float method, which has a composition consisting essentially of, in terms of oxide amount in mass %:SiO250 to 72%,Al2O30.15 to 15%,MgO + CaO + SrO + BaO4 to 30%,Na2Omore than 0% and at most 10%,K2O1 to 21%,Li2O0 to 1%,Na2O + K2O + Li2O6 to 25%,ZrO20 to 10%, andFe2O30.0725 to 0.15%; andwherein the average Fe2+content in a surface layer of the glass substrate within a depth of 10 μm from the a top surface is at most 0.0725% in terms of Fe2O3amount.
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U.S. Appl. No. 13/163,820, filed Jun. 20, 2011, Nagai, et al.
Office Action issued Jan. 13, 2011, in Chinese Patent Application No. 200780041086.0 (with English translation).
Akie Daiki
Akiyama Ryoji
Kondo Akira
Maeda Kei
Nagai Kensuke
Asahi Glass Company Limited
Bolden Elizabeth A
Group Karl
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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