Alkali free aluminoborosilicate glass and its use

摘要

Described is an alkali-free aluminoborosilicate glass with a viscosity of 1013 dPas at a temperature of above 700 DEG 0 C., a processing temperature VA of less than 1220 DEG 0 C., and very good chemical stability, which can be produced in a float unit and has the following composition, in % by weight based on oxide: - SiO2 48 - <55 - B2O3 7 - 15 - Al2O3 >20 - 26 - MgO 0 - 8 - CaO 4 - 12 - BaO 0 - 2 - SrO 0 - 2 - ZnO 1 - 8 - ZrO2 0 - 2 - SnO2 0.5 - 2 - The glass is especially suitable for use in display technology.