Spherical carbon particles and their aggregates
US7816007B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2005 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Apr 13, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
To provide the spherical carbon particles having a novel structure different from the conventional carbon particles, uniform in shape, well dispersible in solvents and easy to handle.Spherical carbon particles of 5 nm to 100 μm in diameter having a void or voids enclosed by the carbon crystal wall, which particles have such a structure that the carbon crystal ends are exposed or the carbon net plane is looped at least at a part of the outer periphery of the particles, and an aggregate of spherical carbon particles of 5 nm to 100 μm in diameter having a void or voids enclosed by the carbon crystal wall, which aggregate has such a property that the ratio of the spherical carbon particles having a radial ratio in the range of 1.0 to 1.3 is not less than 40% by number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.