MINERAL WOOL ANALYSIS Russian patent published in 2005 - IPC

FIELD: mineral fibers.

SUBSTANCE: invention provides mineral wool capable of dissolving in physiological media, which can be used for manufacturing materials providing heat and/or sound insulation or substrates for growing plants without soil. Wool contains following components, wt %: SiO₂ 39-55, preferably 40-52; Al₂O₃ 16-27, preferably 16-25; CaO 3-35, preferably 10-25; MgO 0-15, preferably 0-10; Na₂O 0-15, preferably 6-12; K₂O 0-15, preferably 3-12; R₂O (Na₂O+K₂O) 10-17, preferably 12-17; P₂O₅ 0-3, preferably 0-2; Fe₂O₃ 0 - below 6; B₂O₃ 0-8, preferably 0-4; TiO₂ 0-3; Fe₂O₃+TiO₂ 0 - below 6; provided that, when Mg = 0-5%, preferably 0-2%, then R₂O ≤ 13.0%.

EFFECT: enhanced solubility in physiological media and acquired ability of wool to fiber formation via external centrifugation.

9 cl, 4 tbl