US 12,005,677 B2
Article comprising puncture resistant laminate with ultra-thin glass layer
Shinu Baby, Painted Post, NY (US); Kuan-Ting Kuo, Chubei (TW); Yousef Kayed Qaroush, Painted Post, NY (US); and Robert Lee Smith, III, Horseheads, NY (US)
Assigned to Corning Incorporated, Corning, NY (US)
Appl. No. 17/270,916
Filed by CORNING INCORPORATED, Corning, NY (US)
PCT Filed Aug. 13, 2019, PCT No. PCT/US2019/046263
§ 371(c)(1), (2) Date Feb. 24, 2021,
PCT Pub. No. WO2020/041032, PCT Pub. Date Feb. 27, 2020.
Claims priority of provisional application 62/722,309, filed on Aug. 24, 2018.
Prior Publication US 2021/0178730 A1, Jun. 17, 2021
Int. Cl. B32B 17/06 (2006.01); B32B 7/12 (2006.01)
CPC B32B 17/06 (2013.01) [B32B 7/12 (2013.01); B32B 2307/558 (2013.01); B32B 2307/581 (2013.01); B32B 2307/584 (2013.01); B32B 2457/20 (2013.01); B32B 2571/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An article comprising:
a laminate comprising:
a substrate;
a cover glass layer bonded to a top surface of the substrate, the cover glass layer comprising a thickness in a range of 1 micron to 30 microns; and
an optically transparent adhesive layer comprising a thickness in a range of 5 microns to 50 microns that bonds a bottom surface of the cover glass layer to the top surface of the substrate,
wherein the cover glass layer comprises an alkali-containing aluminosilicate glass comprising SnO2 at a mol % of 0.08 mol % or less,
wherein the laminate achieves a bend radius of 3 mm, and
wherein the laminate comprises an impact resistance defined by the capability of the cover glass layer to avoid failure at a puncture load of 2.25 kilograms-force or more in a Puncture Test.