Neutral, low transmittance glass
US5308805A · kind A · utility
66Cited by
3References
24Claims
0Family size
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Inventors
Key dates
| Filing date | May 5, 1993 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | May 5, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C3/087
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A neutral, generally green-gray low transmittance (no more than 25 luminous transmittance) soda-lime-silica glass has reduced solar energy transmittance when provided with the following colorant constituents in percent by weight: ______________________________________ Fe.sub.2 O.sub.3 (total iron) 1.3-2 NiO 0.01-0.05 CoO 0.02-0.04 Se 0.0002-0.003 ______________________________________ The glass has a ferrous value in the range of 18 to 30.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.