Reinforced glass
US11192817B2 · kind B2 · utility
9Cited by
0References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 13, 2020 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Jan 19, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C21/001
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.