The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 04, 2026

Filed:

Jun. 03, 2022
Applicant:

Schott Glass Technologies (Suzhou) Co. Ltd., Suzhou, CN;

Inventors:

Wei Xiao, Shanghai, CN;

Feng He, Suzhou, CN;

Ning Da, Suzhou, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 17/28 (2006.01); B32B 7/12 (2006.01); B32B 17/10 (2006.01); B32B 27/28 (2006.01); B32B 27/36 (2006.01); C03C 17/00 (2006.01); C03C 17/30 (2006.01); C03C 17/32 (2006.01); C03C 21/00 (2006.01);
U.S. Cl.
CPC ...
C03C 17/28 (2013.01); B32B 7/12 (2013.01); B32B 17/10 (2013.01); B32B 27/281 (2013.01); B32B 27/36 (2013.01); C03C 17/007 (2013.01); C03C 17/009 (2013.01); C03C 17/30 (2013.01); C03C 17/32 (2013.01); C03C 21/00 (2013.01); B32B 2250/02 (2013.01); B32B 2255/26 (2013.01); B32B 2307/536 (2013.01); B32B 2307/54 (2013.01); B32B 2307/546 (2013.01); B32B 2307/558 (2013.01); B32B 2307/732 (2013.01); B32B 2315/08 (2013.01); B32B 2333/12 (2013.01); B32B 2363/00 (2013.01); B32B 2367/00 (2013.01); B32B 2379/08 (2013.01); B32B 2383/00 (2013.01); B32B 2457/20 (2013.01); C03C 2217/445 (2013.01); C03C 2217/478 (2013.01); C03C 2218/116 (2013.01); C03C 2218/118 (2013.01); C03C 2218/152 (2013.01); C03C 2218/365 (2013.01);
Abstract

A foldable cover article has a total thickness t≤300 μm, which is bendable to a minimum bending radius r≤20 mm without breakage and a pencil hardness HR≥HB. The foldable cover article includes a glass or glass-ceramic substrate with a thickness 5 μm≤t≤150 μm and a polymer layer and/or a hard material coating with a total thickness 5 μm≤t≤150 μm. For each 20 mm width of the foldable cover article, when the foldable cover article is broken upon bending along the direction perpendicular to the width, a number of projections with a longest linear extension L≥5 mm is less than 10 and/or a number of projections with a longest linear extension L<5 mm is less than 50.


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