| 摘要 |
PCT No. PCT/US97/02078 Sec. 371 Date Aug. 7, 1998 Sec. 102(e) Date Aug. 7, 1998 PCT Filed Feb. 11, 1997 PCT Pub. No. WO97/30947 PCT Pub. Date Aug. 28, 1997The invention relates to a strong UV absorbing glass consisting essentially of, expressed in cation percent, 15-30% SiO2, 50-60% B2O3, 2-5% Al2O3, 0-6% Li2O, 0-3.0% Na2O, 14-20% K2O, 0.5-1.0% CuO, 0.4-0.7% SnO2, 0.5-1.5% Cl, and 0.7-1.5% Br. An essentially haze-free version of the glass is disclosed. A UV absorbing coating material made by suspending ground particles of the inventive glass in a suitable matrix is also disclosed.
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