Patent · US Expired

Alkali metal-free aluminoborosilicate glass and its use

US6096670A · kind A · utility

42Cited by

7References

11Claims

0Family size

Assignee

Schott Glaswerke · DE

Inventors

Gerhard Lautenschlager · Reinheim, DE
Klaus Schneider · Zell am Harmersbach, DE
Thomas Kloss · Jena, DE
Peter Brix · Mainz, DE

Key dates

Filing date	Sep 11, 1998
Grant date	Aug 1, 2000
Priority date	—
Expiry date	Sep 11, 2018

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C1/004
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

An alkali metal-free aluminoborosilicate glass is described which has the following composition (in % by weight based on oxide): PA0 SiO.sub.2 57-60; B.sub.2 O.sub.3 6.5-9.5; Al.sub.2 O.sub.3 14-17.5; MgO 5-8; CaO 1-4; SrO 5-8; BaO 0-3.5; with MgO+CaO+SrO+BaO 15-17; ZrO.sub.2 0.4-1.5; TiO.sub.2 0.4-1.5; CeO.sub.2 0.1-0.5; SnO.sub.2 0.2-1. The glass is particularly suitable for use as a substrate glass in display technology.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.