Thermoset polymeric precursor for aluminum nitride
US5260397A · kind A · utility
2Cited by
5References
10Claims
0Family size
Inventor
Key dates
| Filing date | Feb 3, 1992 |
| Grant date | Nov 9, 1993 |
| Priority date | — |
| Expiry date | Feb 3, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G79/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Aluminum-nitrogen polymers comprising a backbone of alternating aluminum and nitrogen atoms both having pendant organic groups, wherein some of the pendant organic groups are unsaturated, are prepared by reacting an unsaturated organic nitrile with a dialkylaluminum hydride. The polymers are crosslinked by supplying energy to generate free radicals. The crosslinked polymers can be pyrolyzed to form an aluminum nitride ceramic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.