Ultraviolet absorbing green tinted glass
US5593929A · kind A · utility
44Cited by
20References
109Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1992 |
| Grant date | Jan 14, 1997 |
| Priority date | — |
| Expiry date | Nov 13, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C4/085
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A green tinted, ultraviolet absorbing glass is disclosed having a standard soda-lime-silica base glass composition and a colorant portion consisting essentially of on a weight basis: less than 2.0% TiO.sub.2 and greater than 0.6% total iron (expressed as Fe.sub.2 O.sub.3) with the ratio of FeO/total iron less than 0.35. The glass exhibits an ultraviolet transmittance no greater than 38 percent (300 to 400 nanometers) and a luminous transmittance (illuminant A) of at least 70 percent at thicknesses ranging from 0.154 to 0.189 inches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.