Alkali-free glass substrate
US7358205B2 · kind B2 · utility
8Cited by
11References
9Claims
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Key dates
| Filing date | Sep 1, 2004 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Apr 29, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An alkali-free glass substrate containing, by mass percent, 50-70% of SiO2, 10-25% of Al2O3, 5-20% of B2O3, 0-10% of MgO, 0-15% of CaO, 0-10% of BaO, 0-10% of SrO and 0-5% of ZnO, also containing SnO2 and/or Sb2O3 and having a β-OH value of at least 0.485/mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.