Graphene additives and methods of preparing the same
US11084726B2 · kind B2 · utility
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3References
8Claims
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Key dates
| Filing date | Aug 8, 2019 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Dec 27, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2030/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a graphene additive, having a viscosity between 1000 and 40000 cps and a grind fineness not greater than 15 μm, and comprising: nano-graphene sheets and a silane coupling agent, wherein a weight ratio of the nano-graphene sheets to the silane coupling agent is 0.1-15:99.9-85, and carbon atoms on a surface of the nano-graphene sheets form chemical bonds Si—O—C with oxygen substituents of the silane coupling agent. The present application further provides a method of preparing the graphene additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.