Insulating refractory material
US6380114B1 · kind B1 · utility
16Cited by
10References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 16, 2001 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Feb 16, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B41/4582
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention concerns an insulating material comprising 20-80 wt. % of a ceramic matrix, 5-40 wt. % insulating microspheres, 0.5-15 wt. % of one or more binders, and up to 5 wt. % water. The material may also contain 0.5-4 wt. % deflocculant and 0.5-4 wt. % colloidal silica. The ceramic matrix comprises vitreous grains, notably atomized silica. The insulating microspheres are hollow spheres comprising 55-65 wt. % silica and 27-33 wt. % alumina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.