Diamond grains, method for making same and mixture comprising same
US10047455B2 · kind B2 · utility
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3References
15Claims
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Key dates
| Filing date | Dec 10, 2013 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Nov 5, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/61
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of providing well-shaped diamond grains of at most about 100 microns in size. The method includes providing a synthesis assembly comprising a source of carbon material, a plurality of seed grains on which diamond material can crystallize, and solvent-catalyst material for promoting the crystallization of the diamond grains, and subjecting the synthesis assembly to a condition for growing the diamond grains. The synthesis condition is maintained long enough for at least about half of the carbon material to be converted into the diamond grains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.