Method of producing carbon fiber
US8992879B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2011 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Dec 29, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/902
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of producing carbon fibers, in which the producing method comprises allowing a supported type catalyst and a carbon atom-containing compound to come in contact with each other in a heating zone, wherein the supported type catalyst is prepared by a method comprising impregnation of a powdery carrier with colloid containing catalyst to support particles of the catalyst on the powdery carrier having a specifically developed crystal plane such as a powdery carrier being 4 or more in the ratio (I1/I2) of the intensity I1 of the strongest peak to the intensity I2 of the second strongest peak observed in X-ray diffraction, or a powdery carrier having the ratio (I1/I2) of the intensity I1 of the strongest peak to the intensity I2 of the second strongest peak observed in X-ray diffraction of 1.5 times or more the ratio (I1s/I2s) of the intensity I1s of the strongest peak to the intensity I2s of the second strongest peak described in JCPDS. A composite material is prepared by blending the carbon fibers prepared by the method with, for example, a resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.