Artificial mineral wool composition
US6060413A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1997 |
| Grant date | May 9, 2000 |
| Priority date | — |
| Expiry date | Mar 7, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2213/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
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 + Na.sub.2 O + K.sub.2 O + B.sub.2 O.sub.3) > 30* 2 .times. Al.sub.2 O.sub.3 RO 13.5 to 19.5% R.sub.2 O 14.2 to 23% RO/R.sub.2 O 0.70 to 0.95 CaO/MgO > 1.5 SiO.sub.2 47 to 58.5% Al.sub.2 O.sub.3 0 to 3.5% B.sub.2 O.sub.3 5 to 10% Fe.sub.2 O.sub.3 (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 R.sub.2 O means oxides from column 1a of the Periodic Table, including Na.sub.2 O, K.sub.2 O and Li.sub.2 O.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.