Patent ID: 6103650
Filing Date: 2000-08-15
Classification: C03C,Y10S

Abstract:
A green colored, infrared and ultraviolet radiation absorbing glass composition having a composition comprising a base glass portion comprising: SiO.sub.2 about 66 to 75 percent by weight, Na.sub.2 O about 10 to 20 percent by weight, CaO about 5 to 15 percent by weight, MgO 0 to about 5 percent by weight, Al.sub.2 O.sub.3 0 to about 5 percent by weight, K.sub.2 O 0 to about 5 percent by weight,  and a solar radiation absorbing and colorant portion consisting essentially of: total iron about 0.90 to 2.0 percent by weight, FeO about 0.17 to 0.52 percent by weight, CoO about 40 to 150 PPM, Cr.sub.2 O.sub.3 about 250 to 800 PPM, and TiO.sub.2 about 0.1 to 1 percent by weight,  the glass having a luminous transmittance (LTA) of up to about 60 percent at a thickness of 0.160 inches.