Patent ID: 6060414
Filing Date: 2000-05-09
Classification: C03C,G10K

Abstract:
A mineral fiber, which dissolves in a physiological medium, comprising by weight percent: SiO.sub.2 48 to 67% Al.sub.2 O.sub.3 0.2 to 3% Fe.sub.2 O.sub.3 0 to 12% (as total iron) CaO 16 to 35% MgO 1 to 16% Na.sub.2 O + K.sub.2 O 1 to 6% P.sub.2 O.sub.5 0 to 1.5%  and wherein the contents of these components comply with the following ratios: Na.sub.2 O + P.sub.2 O.sub.5 .gtoreq.1.2 Fe.sub.2 O.sub.3 + Al.sub.2 O.sub.3 .ltoreq.12 Al.sub.2 O.sub.3 + P.sub.2 O.sub.5 0.3 to 3.1%  andCaO+MgO+Fe.sub.2 O.sub.3 .gtoreq.23%.