ARTIFICIAL MINERAL WOOL COMPOSITION

摘要

The subject of the invention is a mineral wool composition capable of dissolving in a physiological medium which comprises the constituents below, having to the following percentages by weight: - (CaO + MgO + BaO + Na2O + K2O + B2O3) - > 30* - 2 x Al2O3 - RO 13.5 to 19.5% - R2O 14.2 to 23% - RO/R2O 0.70 to 0.95 - CaO/MgO > 1.5 - SiO2 47 to 58.5% - Al2O3 0 to 3.5% - B2O3 5 to 10% - Fe2O3 (total iron) 0 to 3.0% - where: RO means oxides of the elements from column 2a of the Periodic Table, including CaO, MgO, BaO and SrO; and R2O means oxides from column 1a of the Periodic Table, including Na2O, K2O and Li2O.