Blue glass compositions
US5070048A · kind A · utility
19Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1990 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Dec 12, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C4/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A blue glass composition comprises conventional soda-lime-silica glass ingredients and specific amounts of Fe.sub.2 O.sub.3, Co.sub.3 O.sub.4, NiO, and optionally Se, resulting in an Illuminant C transmittance of 54% .+-.3% at one quarter inch thickness, a dominant wavelength of 482 nm.+-.1 nm, and a color purity of 13% .+-.1%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.