Water dispersible flame retardant composition comprising phosphorus-functionalized graphite preparation method thereof
US9487637B2 · kind B2 · utility
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Key dates
| Filing date | Feb 19, 2015 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Feb 19, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a method for producing edge-functionalized graphite with phosphoric acid. According to the method, graphite is pulverized into smaller pieces and is then exposed to an atmosphere containing oxygen and water. The method enables the production of graphite functionalized with phosphoric acid groups, which could not be achieved by conventional mechanochemical methods. In addition, the method is carried out in a very simple and economical manner and is suitable for large-scale production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.