Boron/nitrogen preceramic polymers and boron nitride ceramic materials produced therefrom
US5096861A · kind A · utility
1Cited by
4References
4Claims
0Family size
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Key dates
| Filing date | Mar 30, 1990 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Mar 30, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G79/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Crosslinked boron/nitrogen preceramic polymers are prepared by reacting (a) admixture of a trihalogenoborane A and a compound B containing at least one dihalogenated boron atom, with (b) an amino compound C containing at least one --NH.sub.2 group; the resulting polymers are facilely pyrolyzed into boron nitride ceramic materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.