Neutral gray absorbing glass comprising manganese oxide for selenium retention during processing
US5346867A · kind A · utility
42Cited by
20References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1993 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Dec 17, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C4/085
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A neutral gray, heat absorbing soda-lime-silica glass having at 4 mm. control thickness a light transmittance using illuminant A of 10.0% to 55.0%, ultra violet transmittance less than 25.0%, and infra red transmittance is less than about 50.0% produced with colorants consisting of 0.90 to 1.90 percent by weight total iron oxide as Fe.sub.2 O.sub.3, 0.002 to 0.025 percent Co, 0.0010 to 0.0060 percent Se, 0.10 to 1.0 percent MnO.sub.2, and 0 to 1.0 percent TiO.sub.2. The flat glass products having such a composition is particularly suitable for use as a privacy glass or sun roof product in trucks and automobiles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.