Method of making controlled-pore silica structures for high temperature insulation
US4221578A · kind A · utility
12Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1979 |
| Grant date | Sep 9, 1980 |
| Priority date | — |
| Expiry date | Feb 12, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S65/901
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention is concerned with the production of porous, essentially alkali metal-free amorphous bodies demonstrating excellent thermal insulating properties and being capable of long term use at temperatures up to 1000.degree. C. The bodies exhibit an average pore diameter of between about 100A-10,000A with at least 80% of the pores coming within .+-.20% of the average pore diameter value. The bodies consist essentially, as expressed in weight percent on the oxide basis, of 0.25-5% of an infrared radiation absorbing metal oxide, 1-10% of an infrared radiation scattering metal oxide, and the remainder SiO.sub.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.