Title:
PAN-BASED CARBON FIBER AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2015/105019
Kind Code:
A1
Abstract:
Provided are: a PAN-based carbon fiber comprising at least three phases having different crystal sizes and, ideally, having a core-sheath structure having at least three layers; and a production method therefor. A PAN-based carbon fiber whereby flame-proofing time can be dramatically shortened and productivity increased and which sufficiently maintains strength and exhibits high elasticity can be obtained as a result of a production method in which: a carbon fiber having at least three phases having different crystal sizes is configured or a specific polymer for spinning is spun; flame-proofing is performed under specific conditions; and then carbonization is performed.
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Inventors:
HIGUCHI TETSUNORI (JP)
SAKAGUCHI MAMI (JP)
SAKAGUCHI MAMI (JP)
Application Number:
PCT/JP2014/084468
Publication Date:
July 16, 2015
Filing Date:
December 26, 2014
Export Citation:
Assignee:
UNIV TOKYO (JP)
International Classes:
D01F9/22
Domestic Patent References:
| WO2007018136A1 | 2007-02-15 | |||
| WO2015005469A1 | 2015-01-15 |
Foreign References:
| JP2009149712A | 2009-07-09 | |||
| JPH06173122A | 1994-06-21 | |||
| JP2008169511A | 2008-07-24 | |||
| JP2007291557A | 2007-11-08 | |||
| JP2001073230A | 2001-03-21 |
Other References:
See also references of EP 3093380A4
Attorney, Agent or Firm:
BAN Toshimitsu et al. (JP)
Toshimitsu Ban (JP)
Toshimitsu Ban (JP)
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