摘要:
A colorless, transparent soda-lime silica glass which retains a high light transmittance in the visible region and absorbs ultraviolet; and a glass bottle which is obtained by molding the glass and enables the contents to look beautiful and to be prevented from suffering changes caused by ultraviolet, e.g., coloration, discoloration, fading, deterioration of flavor, etc. The glass is characterized by having a composition containing 0.15 to 0.4 wt.% SO3, 0.2 to 1 wt.% cerium oxide (in terms of CeO2), 0.01 to 0.08 wt.% Fe2O3, 0 to 0.008 wt.% FeO, 0.01 to 0.08 wt.% manganese oxide (in terms of MnO), and 0 to 0.0005 wt.% cobalt oxide (in terms of CoO).
摘要:
An ultraviolet radiation-absorbing, colorless, transparent soda-lime-silica glass as well as glass bottles formed out of the glass are disclosed which, while maintaining high transmittance to light in the visible region and thereby allowing the contents to be seen clearly, absorbs ultraviolet radiation and thus prevents coloration, discoloration, fading in color or deterioration of the flavor of the contents caused by ultraviolet radiation. The glass is characterized in that its composition includes, in % by weight, SO 3 ··· 0.15-0.4 %; Cerium oxide ··· 0.2-1 % (calculated as CeO 2 ); Fe 2 O 3 ··· 0.01-0.08 %; FeO ··· 0-0.008 %; Manganese oxide ··· 0.01-0.08 % (calculated as MnO); and Cobalt oxide ··· 0-0.0005 % (calculated as CoO).