PROCESS FOR PRODUCTION OF CARBON FIBERS

Title:

PROCESS FOR PRODUCTION OF CARBON FIBERS

Document Type and Number:

WIPO Patent Application WO/2011/108269

Kind Code:

A1

Abstract:

Disclosed is a process for producing carbon fibers, comprising the step of bringing a supported catalyst into contact with a compound containing a carbon atom or carbon atoms in a heated zone, wherein the supported catalyst is produced by a process comprising impregnating a powdery carrier with a colloid containing the catalyst to support particles of the catalyst on the powdery carrier, wherein a specific crystal face is grown in the powdery carrier, and wherein examples of the powdery carrier include a powdery carrier in which the ratio (I1/I2) of the intensity (I1) of the strongest peak to the intensity (I2) of the second strongest peak both observed in X-ray diffraction analysis is 4 or more and a powdery carrier in which the ratio (I1/I2) of the intensity (I1) of the strongest peak to the intensity (I2) of the second strongest peak both observed in X-ray diffraction analysis is 1.5 times or more higher than the ratio (I1S/I2S) of the intensity (I1S) of the strongest peak to the intensity (I2S) of the second strongest peak both described in JCPDS. The carbon fibers produced by the process can be added to a resin or the like to produce a composite material.

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Inventors:

MIYAMOTO DAISUKE (JP)
KAMBARA EIJI (JP)

Application Number:

PCT/JP2011/001233

Publication Date:

September 09, 2011

Filing Date:

March 02, 2011

Export Citation:

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Assignee:

SHOWA DENKO KK (JP)
MIYAMOTO DAISUKE (JP)
KAMBARA EIJI (JP)

International Classes:

D01F9/127; C01B31/02

Domestic Patent References:

WO2007074629A1

2007-07-05

Foreign References:

JP2004534715A	2004-11-18
JPS57127449A	1982-08-07
JP2003073930A	2003-03-12
JP2003171832A	2003-06-20
JP2005225757A	2005-08-25
JP2007268319A	2007-10-18
JP2008169092A	2008-07-24
JP2001062299A	2001-03-13
JP2008133177A	2008-06-12
JP2008174442A	2008-07-31
JP3960973B2	2007-08-15
JP3722965B2	2005-11-30
JP3618492B2	2005-02-09
JPH0431009B2	1992-05-25

Other References:

J. PHYS. CHEM. B, vol. 108, 2004, pages 18908
See also references of EP 2543756A4

Attorney, Agent or Firm:

KIKUMA, TADAYUKI (JP)
Tadayuki Kikuma (JP)

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