US 12,012,357 B2
Ion exchange processes and chemically strengthened glass substrates resulting therefrom
Sean Matthew Garner, Elmira, NY (US); and Michael Lesley Sorensen, Waverly, NY (US)
Assigned to Corning Incorporated, Corning, NY (US)
Filed by CORNING INCORPORATED, Corning, NY (US)
Filed on Mar. 9, 2023, as Appl. No. 18/119,330.
Application 17/010,275 is a division of application No. 15/497,668, filed on Apr. 26, 2017, granted, now 10,766,809, issued on Sep. 8, 2020.
Application 15/497,668 is a division of application No. 15/026,691, granted, now 10,273,184, issued on Apr. 30, 2019, previously published as PCT/US2014/060241, filed on Oct. 13, 2014.
Application 18/119,330 is a continuation of application No. 17/010,275, filed on Sep. 2, 2020, granted, now 11,753,334.
Claims priority of provisional application 61/890,530, filed on Oct. 14, 2013.
Prior Publication US 2023/0242441 A1, Aug. 3, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C03C 21/00 (2006.01); B32B 17/06 (2006.01); B32B 17/10 (2006.01); C03C 3/076 (2006.01); C03C 3/078 (2006.01); C03C 3/083 (2006.01); C03C 3/085 (2006.01); C03C 3/087 (2006.01); C03C 3/089 (2006.01); C03C 3/091 (2006.01); C03C 3/093 (2006.01); C03C 3/095 (2006.01); C03C 4/18 (2006.01)
CPC C03C 21/002 (2013.01) [B32B 17/061 (2013.01); B32B 17/10 (2013.01); B32B 17/10137 (2013.01); C03C 3/076 (2013.01); C03C 3/078 (2013.01); C03C 3/083 (2013.01); C03C 3/085 (2013.01); C03C 3/087 (2013.01); C03C 3/089 (2013.01); C03C 3/091 (2013.01); C03C 3/093 (2013.01); C03C 3/095 (2013.01); C03C 4/18 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An article comprising:
a glass or glass ceramic substrate including a first ion-exchanged surface and a second ion-exchanged surface opposite the first ion-exchanged surface, the first and second ion-exchanged surfaces defining an average thickness therebetween;
a first compressive stress layer extending inward from the first ion-exchanged surface toward a center of the glass substrate comprising a first depth of layer DOL1;
a second compressive stress layer extending inward from the second ion-exchanged surface toward the center of the glass substrate comprising a second depth of layer DOL2 less than DOL1 wherein DOL1 is greater than 25% of an average thickness of the glass or glass ceramic substrate; and
a second substrate is bonded to the second ion-exchanged surface.
 
10. A laminate article comprising:
a first substrate; and
a second substrate comprising a first surface and a second surface opposite the first surface, the second surface being bonded to the first substrate, the second substrate comprising:
a glass or glass ceramic substrate including:
a first compressive stress layer extending inward toward a center of the substrate from the first surface comprising a first depth of layer DOL1; and
a second compressive stress layer extending inward toward the center of the substrate from the second surface comprising a second depth of layer DOL2,
wherein DOL1 is greater than DOL2, and the first substrate is bonded to the second surface; and,
wherein DOL1 is greater than 25% of an average thickness of the second substrate.