blue glass of low solar absorption, solar reflective coated glass and blue insulating unit having a low solar heat gain

摘要

A Glass substrate which comprises a Composition of glass which comprises a Glass portion and a base portion of colour GlassIn the portion of Basic Glass is a portion of Base - Soda Lime Silica SiO2, which includes: 65 to 75 Weight percent Na2O, 10 to 20 percent by weight,Cao 5 to 15 Weight percent of MgO, 0 to 5 percent by weight of Al2O3 from 0 to 5 Weight percent K2O, 0 to 5 percent by weight,Bao and 0 to 1 percent by weight and the portion of Glass Coloring consists in: - Total Iron expressed as Fe2O3, in the range of 0.04 to 0.28 percent by weight; coo in the range of 32 to 90 parts per million; - in the range of 1 to 5.5 parts per million; and, Optionally, at least one additional Colorant selected from nd2o3 MnO2, Cr2O3, TiO2, nio, and Er2O3, where the relationship of coo with is expressed in parts per millionIs greater than or equal to 6, in which the percentages by weight parts per million and are based on the composition of Glass.