Patent Number: 6,169,047

Title: Alkali-free glass and flat panel display

Abstract: An alkali-free glass consisting essentially of, by wt %, from 58.4 to 66.0% of SiO.sub.2, from 15.3 to 22.0% of Al.sub.2 O.sub.3, from 5.0 to 12.0% of B.sub.2 O.sub.3, from 0 to 8.0% of MgO, from 0 to 9.0% of CaO, from 3.0 to 12.5% of SrO, from 0 to less than 2.0% of BaO, and from 9.0 to 18.0% of MgO+CaO+SrO+BaO and having a strain point of at least 640.degree. C.

Inventors: Nishizawa; Manabu (Yokohama, JP), Nakao; Yasumasa (Yokohama, JP)

Assignee: Asahi Glass Company Ltd.

International Classification: C03C 3/076 (20060101); C03C 3/091 (20060101); C03C 003/091 (); C03C 003/085 ()

Expiration Date: 01/02/2018