Methods for producing ceramic foams using pre-ceramic resins combined with liquid phenolic resin
US5643512A · kind A · utility
10Cited by
40References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1995 |
| Grant date | Jul 1, 1997 |
| Priority date | — |
| Expiry date | Aug 16, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/919
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is embodied in a method of producing a ceramic foam. The steps for producing the ceramic foam include first mixing a liquid pre-ceramic resin with a liquid phenolic resin, second allowing the resultant mixture to chemically foam, third curing the mixture for a time and at a temperature sufficiently to convert the mixture to a polymeric foam, and then heating the resultant polymeric foam for a time and at a temperature sufficiently to completely break-down polymers of the polymeric foam and convert the polymeric foam to a ceramic foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.