Production of infusible polycarbosilanes convertible into silicon carbide ceramics
US5064915A · kind A · utility
3Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1989 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Nov 27, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/60
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Infusible and insoluble polycarbosilanes, readily pyrolyzed into silicon carbide ceramic materials, e.g., SiC fibers, are produced by hardening a fusible polycarbosilane containing at least two .tbd.SiH groups per molecule via intimately contacting such fusible polycarbosilane with an effective hardening amount of the vapors of sulfur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.