초록 ▼

The soda lime glass has a dark grey color, a total energy transmission measured for a glass thickness of 4mm (TE4) mm (TE4) ranging between 15 to 40%, a selectivity (SE4) which is high and is at least 1.2, and an excitation purity which does not exceed 10%. This glass is particularly suitable for au

The soda lime glass has a dark grey color, a total energy transmission measured for a glass thickness of 4mm (TE4) mm (TE4) ranging between 15 to 40%, a selectivity (SE4) which is high and is at least 1.2, and an excitation purity which does not exceed 10%. This glass is particularly suitable for automobile rear windows or rear side windows.

대표청구항 ▼

[ What is claimed is:] [1.] Soda lime glass, comprising:glass forming constituents for soda lime glass; andcoloring agents including iron, cobalt, selenium and chromium expressed in the form indicated in an amount as percent by weight of the soda lime glass as follows:from 1.05 to 1.80% of Fe.sub.2

[ What is claimed is:] [1.] Soda lime glass, comprising:glass forming constituents for soda lime glass; andcoloring agents including iron, cobalt, selenium and chromium expressed in the form indicated in an amount as percent by weight of the soda lime glass as follows:from 1.05 to 1.80% of Fe.sub.2 O.sub.3,from 0.0040 to 0.0180% of Co,from 0.0003 to 0.0040% of Se, andfrom 0.0010 to 0.0100% of Cr.sub.2 O.sub.3, rein the soda lime glass has a dark grey color, a total energy transmission measured for a glass thickness of 4 mm (TE4) ranging between 15 to 40%, a selectivity (SE4) which is at least 1.2, and an excitation purity which does not exceed 10%.