Surface treatment of carbon microfibers
US7862794B2 · kind B2 · utility
0Cited by
15References
1Claims
0Family size
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Key dates
| Filing date | Aug 20, 2007 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Dec 9, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2918
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of oxidizing the surface of carbon microfibers that includes contacting the microfibers with an oxidizing agent that includes sulfuric acid and potassium chlorate under reaction conditions sufficient to oxidize the surface. The invention also features a method of decreasing the length of carbon microfibers that includes contacting the microfibers with an oxidizing agent under reaction conditions sufficient to decrease the length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.