Flat glass having high transmittance

Details Flat glass having high transmittance Flat glass having high transmittance

2005-01-18

2005-01-18

Group, Karl (Department: 1755)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S064000, C501S071000, C065S090000

Reexamination Certificate

active

06844280

ABSTRACT:
The present invention is to provide a high transmittance glass sheet that has a composition containing as coloring components, expressed in wt. %, 0.005 to less than 0.02% of total iron oxide in terms of Fe2O3, less than 0.008% of FeO, and 0 to 0.25% of cerium oxide and having a ratio of FeO in terms of Fe2O3to the total iron oxide of lower than 40%, and exhibits high visible light transmittance and solar radiation transmittance. Alternatively, a high transmittance glass sheet is provided that contains not more than 0.06% of total iron oxide and 0.025 to 0.20% of cerium oxide and has a ratio of a fluorescence intensity at 395 nm to a fluorescence intensity at 600 nm of 10% or higher when subjected to ultraviolet irradiation at a wavelength of 335 nm.

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Machine Translation of JP 2000-143283.*
Jesus Arribas Gila, May 1967, VIII Annual Meeting of Spanish Ceramic Society, “Composition and fabrication of glass molds”.
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