Spherical boron nitride nanoparticles and synthetic method thereof
US8414855B2 · kind B2 · utility
1Cited by
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Key dates
| Filing date | Feb 2, 2010 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Nov 5, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Spherical boron nitride nanoparticles having an average particle diameter of less than 50 nm is obtained by a method of synthesizing spherical boron nitride nanoparticles including the following steps; heating a mixture of boric acid ester and nitrogen gas in ammonia gas and argon gas to form reaction product; crystallizing reaction product to form precursor of spherical boron nitride nanoparticles; and, heating the precursor in inert gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.