Transparent ion-exchangeable silicate glasses with high fracture toughness
US11078105B2 · kind B2 · utility
2Cited by
10References
14Claims
0Family size
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Key dates
| Filing date | Sep 20, 2018 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Jul 21, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C3/097
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided herein are glass based articles comprising SiO2 in a range from about 20 mol % to about 80 mol %; Al2O3 in a range from about 2 mol % to about 60 mol %; MgO; Li2O; La2O3 in an amount greater than or equal to about 3 mol %; a sum of alkali metal oxides (R2O) is greater than or equal to about 6 mol %; and a sum of MgO and Al2O3 is greater than or equal to about 28 mol %, wherein the glass based article is free of B2O3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.