Borosilicate glass, useful in pharmaceutical packaging, comprises silicon dioxide, boron oxide, aluminum oxide, titanium dioxide, lithium oxide, potassium oxide, sodium oxide, alkaline earth oxide, zirconium oxide and ferric oxide

摘要

Borosilicate glass with UV-blockings, comprises silicon dioxide (60-80 wt.%); boron oxide (5-15 wt.%); aluminum oxide (2-10 wt.%); titanium dioxide (0.5-7 wt.%); sum of lithium oxide, potassium oxide and sodium oxide (3-10 wt.%); sum of alkaline earth oxide (0.5-10 wt.%); zirconium oxide (0-3); and ferric oxide (0-0.2); where the borosilicate glass exhibits a transition temperature of 550-590[deg] C and a processing temperature of 1100-1200[deg] C. Borosilicate glass with UV-blockings, comprises silicon dioxide (60-80 wt.%); boron oxide (5-15 wt.%); aluminum oxide (2-10 wt.%); titanium dioxide (0.5-7 wt.%); sum of lithium oxide, potassium oxide and sodium oxide (3-10 wt.%); sum of alkaline earth oxide (0.5-10 wt.%); zirconium oxide (0-3); and ferric oxide (0-0.2); where the borosilicate glass: exhibits a transition temperature of 550-590[deg] C and a processing temperature of 1100-1200[deg] C (in a viscosity of 104 Pas), a transmission (T) of at least 80% in a light wavelength of 400 nm and a transmission (T) of less than 0.1% in wavelength of less than 260 nm, and a thickness of 1 mm; and can be melted under oxidation conditions.