C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
261/15
C03C 3/083 (2006.01) C03C 1/00 (2006.01) C03C 3/085 (2006.01) C03C 3/097 (2006.01) C03C 3/11 (2006.01) C03C 10/00 (2006.01)
Patent
CA 2315332
Li2O-Al2O3-SiO2 crystallized glass is provided which has clarity and glass characteristics equivalent to or superior to a conventional crystallized glass, even when the content of As2O3 is decreased. The Li2O-Al2O3-SiO2 crystallized glass consists essentially of, by weight, 60 to 75% SiO2, 17 to 27% Al2O3, 3 to 5% Li2O, 0 to 0.9% MgO, 0 to 0.9% ZnO, 0.3 to 5% BaO, 0 to 3% Na2O, 0 to 3% K2O, 0 to 4% TiO2, 1 to 4% ZrO2, 0 to 4% P2O5, 0.05 to 2% Sb2O3, 0 to 0.9% MgO + ZnO, and 0 to 4% Na2O + K2O.
Sakamoto Akihiko
Shimatani Narutoshi
Yamada Hiroyuki
Dennison Associates
Nippon Electric Glass Co. Ltd.
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