Back to results
US 6,664,204 B1Granted
Solar inhibiting glasses with increased redox and iron
AssigneeHigh Performance Glass Innovations
InventorDarryl J. Costin
Life of this patent
Estimating the term…
Abstract
A special glass formed by maintaining a high redox ratio, and a large amount of total iron. The redox is preferably maintained at greater than 50 percent, more preferably greater than 80 percent. The total iron is maintained at least that 0.5 percent, and more preferably at 0.8 percent or greater.
Claims8
A glass composition, comprising:
- a glass base material;
- and
- an iron dopant, added to said glass base material in an amount in which a molar fraction of total iron present in its ferrous state, expressed as a ratio to total iron, is at least 80 percent and a total iron added to said glass is at least 0.7% by weight.
A glass composition with total iron content greater than 0.7% and a ratio of ferrous iron to total iron is greater than 80%.
A method, comprising:
- forming a glass material with iron content therein;
- reducing at least some of said iron content to a state of FeO;
- and
- maintaining a ratio between FeO and Fe2O3 at a value greater than 80 percent, and maintaining an amount of total iron at value greater than 0.7 percent by weight.
1 more element
Dependencies are inferred from the claim text.