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Title:
METHODS FOR PRODUCING REGENERATED CARBON FIBER BUNDLES, REGENERATED CARBON FIBERS AND REGENERATED MILLED CARBON FIBERS, APPARATUS FOR PRODUCING REGENERATED CARBON FIBER BUNDLES, METHOD FOR PRODUCING CARBON FIBER-REINFORCED RESIN, AND REGENERATED CARBON FIBER BUNDLES
Document Type and Number:
WIPO Patent Application WO/2018/212016
Kind Code:
A1
Abstract:
Provided are: a method for producing regenerated carbon fibers, whereby it becomes possible to collect a carbon fiber base material in the state as contained in a carbon fiber-reinforced resin without needing to heat the carbon fiber-reinforced resin at 800°C or higher and it also becomes possible to reduce the variation in resin residue content in the collected carbon fiber base material; an apparatus for producing regenerated carbon fibers, which can be utilized for the aforementioned production method; and a method for producing a carbon fiber-reinforced resin, in which regenerated carbon fibers can be used effectively. A method for producing regenerated carbon fiber bundles, which can obtain multiple sheet-like carbon fiber base materials in the form of regenerated carbon fiber bundles from a carbon fiber-reinforced resin (100) containing the carbon fiber base materials and a matrix resin, said method including: heating the carbon fiber-reinforced resin (100) to thermally decompose the matrix resin, thereby obtaining a heat-treated product (102); and disintegrating the heat-treated product (102) to separate the multiple carbon fiber base materials into individual regenerated carbon fiber bundles.

Inventors:
TOYOSHIMA HIROKAZU (JP)
TAKEDA TOORU (JP)
HARA TAKAHISA (JP)
MASUDA KOUJIROU (JP)
YAMAGUCHI YASUO (JP)
NAKAMURA MASATOSHI (JP)
MARUTA YOUSUKE (JP)
SATOU MASAKI (JP)
Application Number:
PCT/JP2018/017784
Publication Date:
November 22, 2018
Filing Date:
May 08, 2018
Export Citation:
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Assignee:
SHINRYO CORP (JP)
International Classes:
C08J11/12; B29B17/04; C08J5/04
Domestic Patent References:
WO2016104467A12016-06-30
WO1997041285A11997-11-06
Foreign References:
JP2013199607A2013-10-03
JP2013147545A2013-08-01
JP2017132933A2017-08-03
JP2016108684A2016-06-20
JPS59130355A1984-07-26
JPS59100720A1984-06-11
JP2008254191A2008-10-23
JP2000096387A2000-04-04
JP2005307121A2005-11-04
JPH0912730A1997-01-14
JP2016521295A2016-07-21
JP2017097990A2017-06-01
JP3401865B22003-04-28
JP5498144B22014-05-21
Other References:
See also references of EP 3626769A4
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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