Schott Ag

Max Raster

Franz Ott

Joerg Hinrich Fechner

Reinhard Maennl

The borosilicate glass for pharmaceutical packaging has a transmission &#x3c4; in the visible range of more than 80% at a wavelength of 400 nm, a transmission &#x3c4; in the UV range of at most 0.1% at wavelengths under 260 nm (each at a sample thickness of 1 mm), a transformation temperature Tg of 550&#xb0; C. to 590&#xb0; C. and a processing temperature Vof 1100&#xb0; C. to 1200&#xb0; C. The glass has a composition, in wt. % on an oxide basis, of SiO, 60-80; BO, 5-15; AlO, 2-10; TiO, 0.5-7; &#x3a3; LiO+KO+NaO, 3-10; &#x3a3; alkaline earth oxides, 0.5-10; ZrO, 0-3; and FeO, 0-0.2. The glass is suitable for packaging UV-sensitive substances but nevertheless permits optical quality control.

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Budenheim, Germany

Max Raster