초록 ▼

Soda-lime glass contains by weight the following glass forming oxides: ________________________________ -SiO2 60 to 75% Na2O 10 to 20% CaO 0 to 16% K2O 0 to 10% MgO 0 to 10% Al2O3 0 to 5% BaO 0 to 2% BaO +CaO +MgO 10 to 20% K2O +Na2O 10 to 20% ________________________________ In order to produce a t

Soda-lime glass contains by weight the following glass forming oxides: ________________________________ -SiO2 60 to 75% Na2O 10 to 20% CaO 0 to 16% K2O 0 to 10% MgO 0 to 10% Al2O3 0 to 5% BaO 0 to 2% BaO +CaO +MgO 10 to 20% K2O +Na2O 10 to 20% ________________________________ In order to produce a tinted glass having favorable properties as regards its cost, color and freedom from haze, the following coloring agents (proportions by weight) are incorporated in the glass: ________________________________ -Fe2O3 0.3 to 0.5% Cr2O3 0.0075 to 0.0230% Se 0.0005 to 0.0019% Co 0.0040 to 0.0070% Ni 0.0050 to 0.0120% ________________________________

대표청구항 ▼

Tinted soda-lime glass containing by weight the following glass forming oxides: ________________________________ -SiO2 60 to 75% Na2O 10 to 20% CaO 0 to 16% K2O 0 to 10% MgO 0 to 10% Al2O3 0 to 5% BaO 0 to 2% BaO +CaO +MgO 10 to 20% K2O +Na2O 10 to 20% ________________________________ wherein such g

Tinted soda-lime glass containing by weight the following glass forming oxides: ________________________________ -SiO2 60 to 75% Na2O 10 to 20% CaO 0 to 16% K2O 0 to 10% MgO 0 to 10% Al2O3 0 to 5% BaO 0 to 2% BaO +CaO +MgO 10 to 20% K2O +Na2O 10 to 20% ________________________________ wherein such glass also contains the following colouring agents (proportions by weight): ________________________________ -Fe2O3 0.3 to 0.5% Cr2O3 0.0075 to 0.0230% Se 0.0005 to 0.0019% Co 0.0040 to 0.0070% Ni 0.0050 to 0.0120% ________________________________