Invention Grant
- Patent Title: Reinforced glass
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Application No.: US16740529Application Date: 2020-01-13
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Publication No.: US11192817B2Publication Date: 2021-12-07
- Inventor: Madoka Ono
- Applicant: AGC Inc.
- Applicant Address: JP Chiyoda-ku
- Assignee: AGC Inc.
- Current Assignee: AGC Inc.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPJP2017-138873 20170718
- Main IPC: C03C3/091
- IPC: C03C3/091 ; C03C23/00 ; C03C21/00
Abstract:
A strengthened glass has a mirror constant A of 1.97 MPa·m0.5 or less, a surface compressive stress (CS) of 10 MPa or more. A product (t×CS) of a sheet thickness t (unit: mm) and the CS (unit: MPa) is less than 230. The strengthened glass may have a fictive temperature at a central portion in a sheet thickness t direction of not lower than a glass transition temperature Tg and Tg+100° C. or lower.
Public/Granted literature
- US20200148581A1 REINFORCED GLASS Public/Granted day:2020-05-14
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