Invention Grant
- Patent Title: Glass article with determined stress profile and method of producing the same
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Application No.: US15516961Application Date: 2015-10-07
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Publication No.: US11123959B2Publication Date: 2021-09-21
- Inventor: Vladislav Yuryevich Golyatin , Jason Thomas Harris , Guangli Hu , Butchi Reddy Vaddi , Natesan Venkataraman
- Applicant: CORNING INCORPORATED
- Applicant Address: US NY Corning
- Assignee: CORNING INCORPORATED
- Current Assignee: CORNING INCORPORATED
- Current Assignee Address: US NY Corning
- International Application: PCT/US2015/054348 WO 20151007
- International Announcement: WO2016/057590 WO 20160414
- Main IPC: B32B17/06
- IPC: B32B17/06 ; C03C21/00 ; C03B17/06 ; C03B17/02 ; C03C17/02

Abstract:
A laminated glass article includes a core layer and a clad layer directly adjacent to the core layer. The core layer is formed from a core glass composition. The clad layer is formed from a clad glass composition. An average clad coefficient of thermal expansion (CTE) is less than an average core CTE such that the clad layer is in compression and the core layer is in tension. A compressive stress of the clad layer decreases with increasing distance from an outer surface of the clad layer within an outer portion of the clad layer and remains substantially constant with increasing distance from the outer surface of the clad layer within an intermediate portion of the clad layer disposed between the outer portion and the core layer. A thickness of the intermediate portion of the clad layer is at least about 82% of a thickness of the clad layer.
Public/Granted literature
- US20170297308A1 GLASS ARTICLE WITH DETERMINED STRESS PROFILE AND METHOD OF PRODUCING THE SAME Public/Granted day:2017-10-19
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