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US 10,501,365 B2Granted
UV blocking for improved transmission glasses
AssigneeCorning Incorporated
InventorsDana Craig Bookbinder, Nicholas Francis Borrelli, Matthew John Dejneka, Timothy Michael Gross, Xiaoju Guo, Ronald Leroy Stewart
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Abstract
Embodiments are directed to glass articles which are resistant to UV photodarkening, the glass articles having a thickness ≤1.3 mm and comprise UV absorbers such as Ti, V, Mn, Fe, Cu, Ce, Ge, Mo, Cr, Co and Ni, and combinations thereof, or alternatively comprising ZnO or SnO2.
Claims11
A glass article having a thickness ≤1.3 mm, wherein the glass article comprises
- 54-75 mol % SiO2;
- 8-17 mol % Al2O3;
- at least one of B2O3 and P2O5, wherein 0.1 mol %≤B2O3+P2O5≤19 mol %;
- 10-20 mol % R2O, wherein R2O comprises one or more of Na2O, K2O, and Li2O;
- above 0 to 1 mol % SnO2;
- and
- an inorganic UV absorber, wherein the inorganic UV absorber comprises one or more of Ti, V, Mn, Fe, Cu, and Ge, or oxides thereof, and the total amount of Ti, V, Mn, Fe, Cu, Ce, and Ge, or oxides thereof is 0.1-1.0 mol %.
4 more elements
Dependencies are inferred from the claim text.