MINERAL WOOL COMPOSITION Russian patent published in 2004 - IPC

FIELD: mineral fibers. SUBSTANCE: invention concerns mineral wool capable of being dissolved in physiologic medium and including following components, wt %: SiO₂ 38-52, Al₂O₂ 16-23, RO(Ca+MgO) 4-15, R₂O(Na₂O+K₂O) 16-25, B₂O₃ 0-10, Fe₂O₃ (total amount of iron) 0-3, preferably 0-1.5, P₂O₅ 0-3, preferably 0-1.5, TiO₂ 0-2. Dissolution rate of wool in physiologic medium is at least 30 ng/sq.m.hr. Mineral wool is manufactured by means of internal centrifugation. EFFECT: optimized wool composition and improved its capacity for biological degradation. 15 cl, 2 tbl