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Title:
CFRP STRUCTURAL BODY, METHOD FOR PRODUCING CFRP STRUCTURAL BODY, CARBON FIBER PREPREG, AND METHOD FOR PRODUCING CARBON FIBER PREPREG
Document Type and Number:
WIPO Patent Application WO/2021/182172
Kind Code:
A1
Abstract:
The present disclosure relates to: a CFRP structural body having improved flame retardancy; and a carbon fiber prepreg from which a CFRP structural body having improved flame retardancy can be obtained.　This structural body comprising CFRP is characterized in that: the structural body is formed from a carbon fiber prepreg obtained by impregnating a carbon fiber mat formed of a bundle of chopped carbon fibers having a filament number of at most 3 K with a resin composition; the carbon fiber content of the CFRP is at least 60 mass%; and the structural body does not have a portion having a thickness less than 4 mm. The prepreg obtained by impregnating the carbon fiber mat with the resin composition is characterized in that: the carbon fiber mat is formed of a bundle of chopped carbon fibers having a filament number of at most 3 K; and the carbon fiber content of the prepreg is at least 60 mass%.

Inventors:
KONAMI YUKICHI (JP)
Application Number:
PCT/JP2021/007853
Publication Date:
September 16, 2021
Filing Date:
March 02, 2021
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
C08J5/24; B29C70/10; B29C70/18; B29C70/40; C08J5/06; B29K105/12
Domestic Patent References:
WO2013115337A12013-08-08
WO2019194090A12019-10-10
WO2019194090A12019-10-10
Foreign References:
JP2018167588A2018-11-01
JPH01163218A1989-06-27
JPH01163219A1989-06-27
JP2011241338A2011-12-01
JP2008174605A2008-07-31
JP2017205878A2017-11-24
JP2020041696A2020-03-19
JP2020188835A2020-11-26
JP2020211943A2020-12-22
JP2018048238A2018-03-29
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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