Glass ceramic and chemically strengthened glass
US11505491B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Nov 9, 2021 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Nov 9, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/315
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a glass ceramic including crystals, and including, in mol % in terms of oxides: 65-75% of SiO2; 3-6% of Al2O3; 15-25% of Li2O; 0.2-4% of P2O5; 0.5-5% of ZrO2; and 0.01-0.5% of HfO2, in which the crystals include one or more kinds of crystals selected from the group consisting of β-spodumene crystals, petalite crystals, and eucryptite crystals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.