Collard & Roe, P.C.
Li2O-Al2O3-SiO2 crystallized glass and crystallizable glass therefor
Li2O&#8212;Al2O3&#8212;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&#8212;Al2O3&#8212;SiO2 crystallized glass contains, by weight, 0.05 to 4% Sb2O3, in which the content of &bgr;-OH is 0.3 to 4/mm.
Nippon Electric Glass Co., Ltd.
C
C03C
inventional
Narutoshi Hiroyuki Akihiko
Shimatani Yamada Sakamoto