Patent ID: 11878939
Assignee: SCHOTT AG
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 5:
6. The glass article of claim 5, wherein the composition comprises:
SiO2 61 to 67,
Al2O317 to 21,
B2O3 0 to 4.5,
Li2O 3.5 to 5,
Na2O 0.8 to 4.5,
K2O 0 to 1
MgO 0 to 2
CaO 0 to 4.5,
SrO 0 to 2,
ZnO 0 to 3
P2O5 0 to 3
ZrO2 0 to 3,
TiO2 0 to 3, and
SnO2 0 to 2.