| 摘要 |
PURPOSE:To provide an ultraviolet-shielding coating glass composition having low melting point and free from toxic substance, by adding TiO2, Fe2O3, Cr2O3, etc., to a matrix glass composition composed of SiO2, Al2O3, B2O3, F2, CaO, Na2O, etc. CONSTITUTION:The objective ultraviolet-shielding coating glass composition can be produced by adding one or more compounds selected from 0.05-10.0mol of TiO2, 0.10-6.0mol of Fe2O3, 0.03-6.0mol of Cr2O3, 0.03-6.0mol of CeO2 and 0.001-0.5mol of V2O5 to 100mol of a matrix glass composition composed of 10-24(mol)% SiO2, 24-30% Al2O3, 20-30% B2O3, 10-15% RO, 15-22% R2O and 5-15% F2 wherein RO is one or more compounds selected from CaO, ZnO, BaO, MgO and SrO, and R2O is one or more compounds selected from Li2O, Na2O, K2O and Cs2O.
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