Functional composite particles
US11407687B2 · kind B2 · utility
0Cited by
7References
20Claims
0Family size
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Key dates
| Filing date | Jun 5, 2020 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | Jul 20, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/604
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A complex ceramic particle and ceramic composite material may be made of a pretreated coal dust and a polymer derived ceramic that is mixed together and pyrolyzed in a nonoxidizing atmosphere. Constituent portions of the particle mixture chemically react causing particles to increase in density and reduce in size during pyrolyzation, yielding a particle suitable for a plurality of uses including composite articles and proppants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.