Hydrophilic treatment of a carbon fiber construction
US6733841B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Nov 1, 2001 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | May 13, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2984
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method is provided for making a hydrophilic carbon fiber construction comprising the steps of: a) immersing a carbon fiber construction in an aqueous dispersion of one or more metal oxides, comprising: i) 1-15% by weight metal oxide; ii) 0.01%-5% by weight dispersant; and b) subsequently heating the carbon fiber construction sufficiently to remove substantially all of the dispersant. Typically the entire method can be completed in less than 20 minutes. In addition, a hydrophilic carbon fiber construction made according to the method of the present invention is provided, typically having a loading of metal oxide equivalent to 20-50 mg metal per gram of carbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.