Alkali- and heat-resistant inorganic fiber
US4363878A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1981 |
| Grant date | Dec 14, 1982 |
| Priority date | — |
| Expiry date | Mar 9, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C13/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The inorganic fiber of this invention comprising as major constituents ______________________________________ % by weight ______________________________________ SiO.sub.2 40-50 CaO 0-10 MgO 15-25 Fe.sub.2 O.sub.3 + FeO 0-10 Al.sub.2 O.sub.3 5-15 MnO 2-15 ______________________________________ (provided that the total amount of CaO, Fe.sub.2 O.sub.3, FeO and MnO is about 20% by weight) is excellent in alkali- and heat-resistances and is useful as a replacement of asbestos in asbestos-cement boards. Titanium oxide (TiO.sub.2) is contained in natural rocks or slags to be used for the meltable material as an impurity in the amount of about 2% by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.