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:
Apr. 13, 2021

Filed:

Mar. 10, 2017
Applicant:

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

Inventors:

Ning Da, Jiangsu, CN;

Feng He, Jiangsu, CN;

Pengxiang Qian, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 21/00 (2006.01); C03C 15/02 (2006.01); C03C 3/091 (2006.01); C03C 3/093 (2006.01); C03C 23/00 (2006.01); C03C 4/18 (2006.01); B65H 18/28 (2006.01);
U.S. Cl.
CPC ...
C03C 21/002 (2013.01); C03C 3/091 (2013.01); C03C 3/093 (2013.01); C03C 4/18 (2013.01); C03C 15/02 (2013.01); C03C 23/0025 (2013.01); B65H 18/28 (2013.01); B65H 2801/61 (2013.01); C03C 2204/00 (2013.01);
Abstract

A method for producing an ultrathin chemically toughened glass article is provided that includes: providing an ultrathin glass sheet with a first surface and a second surface joined by at least one edge, having a thickness between the first and the second surface, chemically toughening the ultrathin glass sheet to produce an ultrathin toughened glass article. The method includes applying an edge pre-treatment to the at least one edge, preferably all edges, of the ultrathin glass sheet prior to the chemical toughening in order to reduce and/or blunt edge defects and to increase resistance to breakage of the ultrathin glass sheet during the chemical toughening.


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