| 摘要 |
The invention relates to a mineral wool which can be dissolved in a physiological medium and which comprises the following constituents according to the following percentages by weight: SiO2 39-44%, preferably 40-43%, A12O3 16-27%, preferably 16-26%, CaO 6 -20%, preferably 8-18%, MgO 1-5%, preferably 1-4,9%, Na2O 0-15%, preferably 2-12%, K2O 0-15%, preferably 2-12%, R2O (Na2O + K2O) 10-14,7%, preferably 10-13.5% P2O5 0-3%, i.e.0-2% Fe2O3 (total iron) 1,.5-15%, i.e.3,2-8%, B2O3 0-2%, preferably 0-1%, TiO2 0-2%, preferably 0.4-1%. |
