Patent ID: 11964909
Assignee: SCHOTT AG
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 15:
16. The sealing glass of claim 1, comprising in % by weight on an oxide basis:
SiO2 from 45 to 75,
B2O3 from 2 to 20,
Li2O from greater than 0 to 10,
K2O from 5 to 40,
CaO from 0 to 15,
BaO from 0 to 16,
ZnO from 0 to 8,
F from 0 to 10,
a sum of alkali metal oxides in a range from at least 10% by weight to not more than 40% by weight, and
not more than 500 ppm by weight of Na2O and PbO.