US 11,866,359 B2
Methods for forming curved glass articles
Jeffrey Michael Benjamin, Horseheads, NY (US); Jeffrey John Domey, Elmira, NY (US); Peter Knowles, Elmira, NY (US); Khaled Layouni, Fontainebleau (FR); Christopher Mark Schweiger, Painted Post, NY (US); Christopher Lee Timmons, Big Flats, NY (US); and Arlin Lee Weikel, Mansfield, PA (US)
Assigned to Corning Incorporated, Corning, NY (US)
Appl. No. 17/770,804
Filed by Corning Incorporated, Corning, NY (US)
PCT Filed Oct. 7, 2020, PCT No. PCT/US2020/054464
§ 371(c)(1), (2) Date Apr. 21, 2022,
PCT Pub. No. WO2021/086554, PCT Pub. Date May 6, 2021.
Claims priority of provisional application 62/980,796, filed on Feb. 24, 2020.
Claims priority of provisional application 62/927,352, filed on Oct. 29, 2019.
Prior Publication US 2022/0402801 A1, Dec. 22, 2022
Int. Cl. B32B 7/12 (2006.01); C03B 23/035 (2006.01); B32B 1/00 (2006.01); B32B 17/06 (2006.01); B32B 17/10 (2006.01); C03C 21/00 (2006.01)
CPC C03B 23/0357 (2013.01) [B32B 1/00 (2013.01); B32B 7/12 (2013.01); B32B 17/061 (2013.01); B32B 17/10036 (2013.01); C03C 21/002 (2013.01); B32B 2250/02 (2013.01); B32B 2307/54 (2013.01); B32B 2605/006 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A glass article, comprising:
a glass sheet comprising a first major surface and a second major surface opposite to the first major surface comprising a radius of curvature of 10,000 mm or less;
a frame adhered to the second major surface of the glass sheet using an adhesive, the frame comprising a curved surface comprising a radius of curvature that is within 10% of the radius of curvature of the glass sheet, and comprising a bezel at least partially around a perimeter of the glass sheet, the bezel having a width of 10 mm or less;
at least one mechanical retainer attached to the glass sheet and to the frame, the at least one mechanical retainer configured to apply a compressive stress to the first major surface of the glass sheet;
wherein the adhesive comprises a tensile strength;
wherein tensile stress is present in the adhesive from holding the glass sheet at the radius of curvature; and
wherein the compressive stress from the at least one mechanical retainer maintains a ratio of the tensile strength to the tensile stress of at least 3.0 over a range of temperatures of from −40° C. to 95° C.