Method of refining a lithium aluminosilicate glass and glass-ceramic obtained
US8127571B2 · kind B2 · utility
14Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2007 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Oct 25, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C3/083
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a method of refining lithium aluminosilicate glass capable of being controllably ceramized and free of arsenic oxide, antimony oxide and tin oxide, in which at least 0.05% by weight of at least one sulfide is added to the glass batch materials and said materials are melted at a temperature below 1750° C. The invention also relates to the glass-ceramics obtained from said colored glass, especially glass colored by vanadium oxide, and cooktops and cooking utensils including such glass-ceramics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.