Title:
CARBON FIBERS AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2010/071226
Kind Code:
A1
Abstract:
Provided are pitch carbon fibers having high heat conductivity but a reduced occurrence of cracking along the fiber axial direction of pitch carbon fibers obtained by conventional melt blowing. The pitch carbon fibers show signs of melting over at least 60% but less than 100% of the fiber cross section, have a face interval (d002) in the graphite layer as determined by X-ray diffraction of 0.3362 nm or less, and a crystal size (Lc) in the direction of thickness of 60 nm or greater. The fibers can be produced under specific conditions for spinning and forming infusible fibers.
Inventors:
SAKURAI HIROSHI (JP)
HARA HIROSHI (JP)
TAKAGI SHOICHI (JP)
HARA HIROSHI (JP)
TAKAGI SHOICHI (JP)
Application Number:
PCT/JP2009/071508
Publication Date:
June 24, 2010
Filing Date:
December 17, 2009
Export Citation:
Assignee:
TEIJIN LTD (JP)
SAKURAI HIROSHI (JP)
HARA HIROSHI (JP)
TAKAGI SHOICHI (JP)
SAKURAI HIROSHI (JP)
HARA HIROSHI (JP)
TAKAGI SHOICHI (JP)
International Classes:
D01F9/145; C01B32/336
Foreign References:
| JP2009019309A | 2009-01-29 | |||
| JP2008285794A | 2008-11-27 | |||
| JP2008285795A | 2008-11-27 | |||
| JP2008285797A | 2008-11-27 | |||
| JP2008208490A | 2008-09-11 | |||
| JPS61113828A | 1986-05-31 | |||
| JPS616314A | 1986-01-13 | |||
| JPS61113827A | 1986-05-31 | |||
| JP2009019309A | 2009-01-29 |
Other References:
CARBON, vol. 38, 2000, pages 741 - 747
Attorney, Agent or Firm:
MIHARA, Hideko (JP)
Hideko Mihara (JP)
Hideko Mihara (JP)
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