MINERAL WOOL Russian patent published in 2024 - IPC C03C13/06 C03C3/87 

FIELD: chemistry.

SUBSTANCE: invention relates to artificial mineral wool. Mineral wool has a chemical composition containing the following, wt.%: SiO₂ 39–50; Al₂O₃ 19.5–27; CaO 8–10; MgO 1–5; Na₂O 5–20; K₂O 0–15; Fe₂O₃ 2–15; B₂O₃ 0–2. Weight ratio of MgO/RO is more than 0.10 and less than 0.50, and the weight ratio of RO/(RO+R₂O) is less than 0.55, in which RO is alkali-earth oxides CaO, MgO, BaO and SrO, R₂O is alkaline oxides Na₂O and K₂O.

EFFECT: fibre-forming capacity using internal moulding methods, bio-solubility of mineral wool, stability at high temperatures without the need to use organic phosphate-containing additives.

11 cl, 1 dwg, 1 tbl