Patent ID: 8551899

Claim:
A dark, neutral green-gray soda-lime glass composition comprising, as a colorant ingredient per 100 parts by weight of a base glass composition, 1.4 to 2.5 parts by weight of total Fe 2 O 3 , 0.02 to 0.04 parts by weight of CoO, 0.0001 to 0.004 parts by weight of Se, 0.005 to 0.5 parts by weight of MnO 2 , and 0.05 to 1 parts by weight of CeO 2 , wherein said dark, neutral green-gray soda-lime glass composition has a visible light transmittance (LT A ) of 15% or less, an ultraviolet ray transmittance (T uv ) of 0 to 1%, and a solar transmittance (T sol ) of 15% or less, measured for a reference thickness of 4 mm.