Foams of graphene, method of making and materials made thereof
US9012522B2 · kind B2 · utility
3Cited by
1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2012 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Aug 15, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K23/22
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Method for making a liquid foam from graphene. The method includes preparing an aqueous dispersion of graphene oxide and adding a water miscible compound to the aqueous dispersion to produce a mixture including a modified form of graphene oxide. A second immiscible fluid (a gas or a liquid) with or without a surfactant are added to the mixture and agitated to form a fluid/water composite wherein the modified form of graphene oxide aggregates at the interfaces between the fluid and water to form either a closed or open cell foam. The modified form of graphene oxide is the foaming agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.