US 11,655,182 B2
Rollable or foldable glass sheet for vehicle interior systems
Matthew Lee Black, Naples, NY (US); and Khaled Layouni, Fontainebleau (FR)
Assigned to Corning Incorporated, Corning, NY (US)
Filed by CORNING INCORPORATED, Corning, NY (US)
Filed on May 26, 2021, as Appl. No. 17/330,732.
Claims priority of provisional application 63/031,617, filed on May 29, 2020.
Prior Publication US 2021/0371325 A1, Dec. 2, 2021
Int. Cl. B32B 15/04 (2006.01); B32B 17/06 (2006.01); C03C 4/18 (2006.01); C03C 3/083 (2006.01); C03C 3/085 (2006.01); C03C 3/087 (2006.01); C03C 3/091 (2006.01); C03C 3/093 (2006.01); C03C 3/097 (2006.01); C03C 21/00 (2006.01)
CPC C03C 4/18 (2013.01) [C03C 3/083 (2013.01); C03C 3/085 (2013.01); C03C 3/087 (2013.01); C03C 3/091 (2013.01); C03C 3/093 (2013.01); C03C 3/097 (2013.01); C03C 21/002 (2013.01); C03C 2204/00 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A rollable glass sheet configured to reversibly transition between a flat configuration and a bent configuration, the rollable glass sheet comprising:
a first major surface;
a second major surface opposite to the first major surface, the first major surface and the second major surface defining a thickness of the glass sheet, wherein the thickness is from 0.21 mm to 0.4 mm;
wherein, in the flat configuration, the first major surface comprises a first surface compressive stress and a first depth of compression;
wherein, in the bent configuration, the first major surface comprises a curvature and wherein, if the first major surface comprises radius of curvature of 50 mm, the first major surface comprises a second surface compressive stress less than the first compressive stress and a second depth of compression less than the first depth of compression and greater than 11 μm,
wherein, when the thickness is 0.21 mm, the first compressive stress is from 530 MPa to 945 MPa and the first depth of compression is from 32 μm to 36 μm, wherein a maximum, and
wherein, when the thickness is 0.40 mm, the first compressive stress is from 730 MPa to 1000 MPa and the first depth of compression is from 38 μm to 42 μm.