Method of producing silicon carbide preceramic vinyl-containing polymers
US4889899A · kind A · utility
3Cited by
8References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1987 |
| Grant date | Dec 26, 1989 |
| Priority date | — |
| Expiry date | Sep 8, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/60
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method is described to prepare preceramic polysilanes which contain at least one weight percent vinyl. To ensure the survival of the vinyl groups in the polysilane the reaction and process conditions must be carefully controlled. The vinyl-containing polysilanes can be formed into fibers, cured either thermally or by UV irradiation, and then pyrolyzed to form ceramic fibers. Thermal curing and pyrolysis can be combined into a single process step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.