Rigidized fibrous ceramic insulation
US5863846A · kind A · utility
7Cited by
21References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1995 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Jun 5, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2975
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A slurry is molded from ceramic fibers and/or microparticles to form a soft felt mat which is impregnated with a sol prior to drying the mat. A catalyst for the sol is caused to diffuse into the mat by exposing the mat to the catalyst and subjecting the mat to a soak time during which the catalyst diffuses into the mat and causes the sol to gel. The sol-gel binder forms bonds so that the mat is dimensionally stabilized. The mat is dried to produce ceramic insulation. Ceramic insulation having a consistent microstructure and a fully gelled sol-gel binder through its entire thickness is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.