Patent ID: 6054400
Filing Date: 2000-04-25
Classification: A61C,A61F,A61K,A61L,C03C

Abstract:
A bioactive glass having a suitable working range for glass processing, said bioactive glass consisting essentially of oxides of silicon, phosphorus, alkali metal, alkaline earths and optionally boron and magnesium wherein said oxides are present in the following amounts: SiO.sub.2 53-60 wt-% Na.sub.2 O 0-34 wt-% K.sub.2 O 1-20 wt-% MgO 0-5 wt-% CaO 5-25 wt-% B.sub.2 O.sub.3 0-4 wt-% P.sub.2 O.sub.5 0.5-6 wt-%  provided that Na.sub.2 O + K.sub.2 O = 16-35 wt-% K.sub.2 O + MgO = 5-20 wt-%, and MgO + CaO = 10-25 wt-%.