Complex composite particles and methods
US11673840B2 · kind B2 · utility
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3References
14Claims
0Family size
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Key dates
| Filing date | Oct 26, 2017 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Jun 23, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/5296
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A complex composite particle is made of a coal dust and binder composite that is pyrolyzed. Constituent portions of the composite react together causing the particles to increase in density and reduce in size during pyrolyzation, yielding a particle suitable for use as a proppant or in a composite structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.