Patent ID: 11884585
Assignee: CORNING INCORPORATED
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 17:
18. A glass-based article, comprising:
a compressive stress layer extending from a surface of the glass-based article to a depth of compression;
a central tension region; and
a composition at a center of the glass-based article comprising:
greater than or equal to 60 mol % to less than or equal to 66 mol % SiO2;
greater than or equal to 14 mol % to less than or equal to 16 mol % Al2O3;
greater than or equal to 7 mol % to less than or equal to 9 mol % Li2O;
greater than or equal to 4 mol % to less than or equal to 6 mol % Na2O;
greater than or equal to 0.5 mol % to less than or equal to 3 mol % P2O5;
greater than or equal to 0.5 mol % to less than or equal to 5 mol % B2O3; and
greater than or equal to 0.1 mol % to less than or equal to 1 mol % TiO2.