Aluminosilicate glasses with improved fining behaviour
US8722554B2 · kind B2 · utility
14Cited by
3References
16Claims
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Key dates
| Filing date | Jul 15, 2011 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Dec 18, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C10/0054
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Mineral materials selected from lithium aluminosilicate glasses containing vanadium, precursors of glass-ceramics, and glass-ceramics colored by vanadium contain solid solution(s) of β-quartz and/or β-spodumene as main crystalline phase. Also disclosed are articles made from said mineral materials, as well as methods for forming said glasses, glass-ceramics and articles of said glasses and glass-ceramics. Methods involve optimizing the refining of lithium aluminosilicate glasses containing SnO2 as a fining agent in preparing glasses or glass-ceramics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.