Patent ID: 7682999

Claim:
A glass composition intended for the manufacture of windows that absorb ultraviolet and infrared radiation, comprising (i) the following oxides in contents varying within the following limits by weight: SiO 2 65-80% Al 2 O 3 0-5% B 2 O 3 0-5% CaO 5-15% MgO 0-2% Na 2 O 9-18% K 2 O 0-10% BaO 0-5%. and (ii) the following absorbent agents in contents varying within the following limits by weight: Fe 2 O 3 (total iron) 0.7 to 1.6% CeO 2 0.1 to 1.2% TiO 2 0 to 1.5%. said glass composition having a redox factor of 0.19 or less and containing no tungsten oxide WO 3 , wherein T uv does not exceeding 14% for a thickness varying from 3 to 5 mm.