	US 11,952,312 B2
	Low-modulus ion-exchangeable glasses for enhanced manufacturability
Binghui Deng, Painted Post, NY (US); Xiaoju Guo, Pittsford, NY (US); and Peter Joseph Lezzi, Corning, NY (US)
Assigned to Corning Incorporated, Corning, NY (US)
Filed by CORNING INCORPORATED, Corning, NY (US)
Filed on Feb. 2, 2022, as Appl. No. 17/591,060.
Claims priority of provisional application 63/145,655, filed on Feb. 4, 2021.
Prior Publication US 2022/0242774 A1, Aug. 4, 2022
Int. Cl. B32B 15/04 (2006.01); B32B 17/06 (2006.01); C03C 3/087 (2006.01); C03C 4/18 (2006.01); C03C 21/00 (2006.01)

CPC C03C 3/087 (2013.01) [C03C 4/18 (2013.01); C03C 21/002 (2013.01); C03C 2204/00 (2013.01)]

14 Claims

1. A glass, comprising:

greater than or equal to 69.0 mol % to less than or equal to 69.5 mol % SiO₂;

greater than or equal to 10.0 mol % to less than or equal to 10.5 mol % Al₂O₃;

greater than or equal to 4.05 mol % to less than or equal to 5.25 mol % MgO;

greater than or equal to 0.1 mol % to less than or equal to 1.1 mol % CaO;

greater than or equal to 14.5 mol % to less than or equal to 15.8 mol % Na₂O; and

greater than or equal to 0.1 mol % to less than or equal to 0.2 mol % SnO₂,

wherein the glass has a liquidus viscosity greater than or equal to 1200 kP to less than or equal to 4000 kP, and

wherein the glass has a Young's modulus greater than or equal to 71.1 GPa to less than or equal to 72 GPa.