Patent ID: 8268741
Filing Date: 2012-09-18
Classification: C03C,E06B

Abstract:
1. A glass substrate comprising a glass composition comprising a base glass portion and a glass colorant portion, wherein the base glass portion is a soda-lime-silica base portion, and the glass colorant portion comprising: total iron, expressed as Fe a redox ratio in the range of 0.15 to 0.25 CoO in the range of 32 to 90 parts per million; Se in the range of 1 to 5.5 parts per million; wherein a ratio of CoO to Se, each expressed in parts per million (“ppm”), is equal to or greater than 8, and the weight percents and the parts per million are based on the final glass composition, and wherein the glass composition provides a glass having chromaticity coordinates of a* in the range of −3.5 to +2.5 and b* in the range of −1 to −15 at a reference thickness of 0.223 inches (5.66 mm).