Chemically strengthened glass
US11008249B2 · kind B2 · utility
0Cited by
0References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 17, 2018 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | May 5, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C21/002
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A chemically strengthened glass obtained by chemically strengthening a lithium-containing aluminosilicate glass, when representing a sheet thickness of the chemically strengthened glass by t (μm) and an internal stress at a depth x (μm) from a surface of the chemically strengthened glass by σ(x) (MPa), has a value of a ratio C=rE/rElimit being greater than or equal to 0.7 and less than 1.0 where rE (kJ/m2) is calculated from Expression (3) described above and rElimit=16×t/1000+3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.