Method for producing cubic boron nitride
USRE36492E · kind E · reissue
0Cited by
8References
20Claims
0Family size
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Key dates
| Filing date | Aug 28, 1997 |
| Grant date | Jan 11, 2000 |
| Priority date | — |
| Expiry date | Aug 28, 2017 |
Classification
- Technology area (CPC —)General
Abstract
hBN is converted to cBN by keeping it under temperature and pressure conditions within the range of stability of cubic boron nitride, in the presence of a mixture of at least two compounds selected from amides and imides of Li, Ca and Mg, or in its copresence with at least one metal selected from elements of Groups Ia, IIa, IIIa, VIa, VIIa, VIII, IIb and IIIb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.