The subject of the invention is a mineral wool capable of dissolving in a physiological medium, which wool comprises the constituents below in the following percentages by weight: SiO2 39-44%, preferably 40-43% Al2O3 16-27%, preferably 16-26% CaO 6-20%, preferably 8-18% MgO 1
The subject of the invention is a mineral wool capable of dissolving in a physiological medium, which wool comprises the constituents below in the following percentages by weight: SiO2 39-44%, preferably 40-43% Al2O3 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%, especially 0-2% Fe2O3 (total iron) 1.5-15%, especially 3.2-8% B2O3 0-2%, preferably 0-1% TiO2 0-2%, preferably 0.4-1%.
대표청구항▼
The invention claimed is: 1. Mineral wool capable of dissolving in a physiological medium, wherein the wool comprises the constituents below in the following percentages by weight: SiO2 39-44%, Al2O3 16-27%, CaO 6-20%, MgO 1-5%, Na2O 0-15%, K2O 0-15% R2O (Na2O+K2O) 10-14.7%, P2O5 0-3%, Fe2O3 (total
The invention claimed is: 1. Mineral wool capable of dissolving in a physiological medium, wherein the wool comprises the constituents below in the following percentages by weight: SiO2 39-44%, Al2O3 16-27%, CaO 6-20%, MgO 1-5%, Na2O 0-15%, K2O 0-15% R2O (Na2O+K2O) 10-14.7%, P2O5 0-3%, Fe2O3 (total iron) 1.5-15%, B2O3 0-2%, TiO2 0-2%, wherein the wool comprises at least 2% MgO when alumina is present in an amount of less than 22%. 2. Mineral wool according to claim 1, wherein the CaO content is between 9.5 and 20%. 3. Mineral wool according to claim 1, wherein the alkali metal oxide content is less than or equal to 13.0%. 4. Mineral wool according to claim 1, wherein the R2O/Al2O3 molar ratio is less than 0.9. 5. Mineral wool according to claim 1, wherein the wool comprises 2 to 6% iron oxide. 6. Mineral wool according to claim 1, wherein the wool comprises 1% or less of titanium oxide. 7. Mineral wool according to claim 1, wherein the wool has a viscosity at a temperature of 1400° C. of more than 70 poise. 8. Mineral wool according to claim 1, wherein the wool has a shrinkage at 700° C. of less than 40% and a shrinkage at 800° C. of less than 90%. 9. A fire-resistant structural system comprising a mineral wool according to claim 1. 10. Insulation comprising a mineral wool according to claim 1. 11. Mineral wool according to claim 1, wherein the SiO2 content is between 40 and 43%. 12. Mineral wool according to claim 1, wherein the Al2O3 content is between 16 and 26%. 13. Mineral wool according to claim 1, wherein the CaO content is between 6 and 20%. 14. Mineral wool according to claim 1, wherein the MgO content is between 1 and 4.9%. 15. Mineral wool according to claim 1, wherein the Na2O content is between 2 and 12%. 16. Mineral wool according to claim 1, wherein the K2O content is between 2 and 12%. 17. Mineral wool according to claim 1, wherein the Na2O+K2O content is between 10 and 13.5%. 18. Mineral wool according to claim 1, wherein the P2O5 content is between 0 and 2%. 19. Mineral wool according to claim 1, wherein the Fe2O3 (total iron) content is between 3.2 and 8%. 20. Mineral wool according to claim 1, wherein the B2O3 content is between 0 and 1%. 21. Mineral wool according to claim 1, wherein the TiO2 content is between 0.4 and 1%.
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