Glass composition
US10442726B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Jun 2, 2017 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jun 2, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C23/0025
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A glass composition including 65 to 72 wt-% SiO2, at least 10.1 wt-% Li2O, at least 10.1 wt-% Al2O3, 0 to 2 wt-% K2O, at most 4 wt-% Na2O, 0 to 1.5 wt-% CaO, 0 to 1.5 wt-% CeO2, 1 to 5 wt-% P2O5, 0 to 0.5 wt-% V2O5, 0 to 1 wt-% Ag, and 0 to 1 wt-% ZrO2, based on a total weight of the composition. The composition is devoid of TiO2, Cu2O, BaO, Sb2O3, Nb2O5, MgO, La2O3, and SnO2. The proportion of Li2O to Al2O3 in the composition is in a range of from 1:1 to 1.5:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.