Title:
METHOD FOR PRODUCING CARBON FIBER BUNDLE
Document Type and Number:
WIPO Patent Application WO/2021/039891
Kind Code:
A1
Abstract:
The present invention provides a method for producing a carbon fiber bundle, the method comprising the following steps (b) to (e): (b) an oil agent application step of applying a silicone oil agent to a precursor fiber bundle to produce an oil-agent-attached precursor fiber bundle; (d) a stabilization step of subjecting the oil-agent-attached precursor fiber bundle to a stabilization treatment to produce a fire-proof fiber bundle; and (e) a carbonization step of carbonizing the fire-proof fiber bundle. The method is characterized in that the tack-free time of the silicone oil agent at 250°C is shorter than 40 minutes.
Inventors:
YOKOYAMA HIROKO (JP)
KINOSHITA EIJI (JP)
OHNO SATOSHI (JP)
TAKETA IZURU (JP)
KINOSHITA EIJI (JP)
OHNO SATOSHI (JP)
TAKETA IZURU (JP)
Application Number:
PCT/JP2020/032321
Publication Date:
March 04, 2021
Filing Date:
August 27, 2020
Export Citation:
Assignee:
TEIJIN LTD (JP)
WACKER ASAHIKASEI SILICONE CO LTD (JP)
WACKER ASAHIKASEI SILICONE CO LTD (JP)
International Classes:
D01F9/14; D06M15/53; D06M15/643; D06M101/28
Domestic Patent References:
| WO1997045576A1 | 1997-12-04 |
Foreign References:
| JP2006336181A | 2006-12-14 | |||
| JP2001172880A | 2001-06-26 | |||
| JP2002370695A | 2002-12-24 | |||
| JP2006183159A | 2006-07-13 | |||
| JP2003253567A | 2003-09-10 | |||
| JPH08209543A | 1996-08-13 | |||
| JP2018159138A | 2018-10-11 | |||
| JP2015030931A | 2015-02-16 | |||
| JP2012046855A | 2012-03-08 | |||
| JP2002129016A | 2002-05-09 | |||
| JP2005298689A | 2005-10-27 |
Attorney, Agent or Firm:
KIMURA, Yoshihiro (JP)
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