US 12,479,759 B2
Photosensitive glasses and glass ceramics and composite glass materials made therefrom
George Halsey Beall, Big Flats, NY (US); Nicholas Francis Borrelli, Elmira, NY (US); Joseph Francis Schroeder, III, Lindley, NY (US); and Thomas Philip Seward, III, Elmira, NY (US)
Assigned to CORNING INCORPORATED, Corning, NY (US)
Filed by CORNING INCORPORATED, Corning, NY (US)
Filed on Aug. 17, 2022, as Appl. No. 17/889,781.
Application 16/854,326 is a division of application No. 15/413,731, filed on Jan. 24, 2017, granted, now 10,703,671, issued on Jul. 7, 2020.
Application 17/889,781 is a continuation of application No. 16/854,326, filed on Apr. 21, 2020, granted, now 11,453,611.
Claims priority of provisional application 62/287,157, filed on Jan. 26, 2016.
Prior Publication US 2022/0388895 A1, Dec. 8, 2022
Int. Cl. C03C 3/11 (2006.01); C03B 25/02 (2006.01); C03B 27/012 (2006.01); C03B 32/02 (2006.01); C03C 3/085 (2006.01); C03C 3/095 (2006.01); C03C 3/112 (2006.01); C03C 4/04 (2006.01); C03C 10/00 (2006.01); C03C 23/00 (2006.01)
CPC C03C 10/0027 (2013.01) [C03B 25/02 (2013.01); C03B 25/025 (2013.01); C03B 27/012 (2013.01); C03B 32/02 (2013.01); C03C 3/085 (2013.01); C03C 3/095 (2013.01); C03C 3/11 (2013.01); C03C 3/112 (2013.01); C03C 4/04 (2013.01); C03C 23/002 (2013.01); C03C 23/0025 (2013.01); C03C 2204/04 (2013.01)] 18 Claims
 
1. A lithium zinc aluminosilicate glass comprising at least one sensitizing agent and at least one nucleating agent, wherein the lithium zinc aluminosilicate glass is negatively photosensitive to radiation having a wavelength in a range from 248 nm to 360 nm and comprises:
from 60 wt % to 80 wt % SiO2;
from 2 wt % to 12 wt % Al2O3;
from 6 wt % to 10 wt % ZnO;
from 2 wt % to 10 wt % Li2O;
from 0 wt % to 5 wt % K2O;
from 0 wt % to 6 wt % F−;
from 0 wt % to 2 wt % CeO2; and
from 0 wt % to 2 wt % Ag,
wherein the sensitizing agent comprises at least one of silver or cerium, and the at least one nucleating agent comprises at least one halogen.