Ion exchangeable glass with high crack initiation threshold
US9156724B2 · kind B2 · utility
143Cited by
21References
21Claims
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Key dates
| Filing date | Nov 15, 2012 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Mar 19, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/315
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Alkali aluminosilicate glasses that are resistant to damage due to sharp impact and capable of fast ion exchange are provided. The glasses comprise at least 4 mol % P2O5 and, when ion exchanged, have a Vickers indentation crack initiation load of at least about 7 kgf.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.