Blue glass composition intended for the manufacture of windows
US7670977B2 · kind B2 · utility
3Cited by
7References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2008 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Oct 10, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C3/087
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a glass composition of silica-soda-lime type colored blue which comprises the coloring agents below in a content varying within the following limits, by weight:the glass exhibiting a redox factor of less than 0.35, a dominant wavelength λD of between 485 and 489 nm, an excitation purity of less than 13% and a selectivity at least equal to 1.1 under a thickness of between 3 and 5 mm.It also relates to the glass sheet obtained from the abovementioned composition, said sheet being intended in particular to form an automobile window or for the construction industry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.