US 11,932,577 B2
Ion exchangeable glass with fast diffusion
Timothy Michael Gross, Corning, NY (US); and Xiaoju Guo, Painted Post, NY (US)
Assigned to CORNING INCORPORATED, Corning, NY (US)
Filed by CORNING INCORPORATED, Corning, NY (US)
Filed on Feb. 3, 2020, as Appl. No. 16/780,369.
Application 16/780,369 is a continuation of application No. 15/381,614, filed on Dec. 16, 2016, granted, now 10,550,029.
Claims priority of provisional application 62/268,659, filed on Dec. 17, 2015.
Prior Publication US 2020/0181000 A1, Jun. 11, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. C03C 3/097 (2006.01); C03C 4/18 (2006.01); C03C 21/00 (2006.01); H05K 5/00 (2006.01); H05K 5/02 (2006.01)
CPC C03C 3/097 (2013.01) [C03C 4/18 (2013.01); C03C 21/002 (2013.01); H05K 5/0017 (2013.01); H05K 5/0217 (2013.01); C03C 2204/00 (2013.01)] 19 Claims
 
1. A glass comprising:
from greater than 57 mol % to 67 mol % SiO2;
from 9 mol % to 18 mol % Al2O3;
from 4 mol % to 8 mol % P2O5;
from 13 mol % to 16 mol % Na2O;
from greater than 1 mol % to 5 mol % K2O; and
ZnO,
wherein (R2O(mol %)+R′O(mol %))−(Al2O3(mol %)+P2O5(mol %))<0, R2O=Li2O+Na2O+K2O+Rb2O+Cs2O, and P′O=ZnO+MgO+CaO+SrO+BaO, and
wherein the glass is substantially free of lithium.