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Patent Searching and Data


Title:
FIBER-REINFORCED RESIN MOLDED BODY AND METHOD FOR PRODUCING CARBON FIBER SHEET USED THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/166558
Kind Code:
A1
Abstract:
A fiber-reinforced resin molded body in which a carbon fiber sheet 21 and a resin-integrated carbon fiber sheet 20, which includes at least one resin 23 selected from a thermoplastic resin and a thermosetting resin, are laminated and integrated, wherein: the carbon fiber sheet 21 comprises a unidirectional long fiber group 21a which is spread and arranged unidirectionally, and multidirectional fibers 22a, 22b which are derived from the unidirectional long fiber group; the multidirectional fibers 22a, 22b are present in the carbond fiber sheet 21 by intermingling with the carbon fibers constituting the unidirectional long fiber group; and the fiber-reinforced resin molded body is a molded body in which two or more layers of the resin-integrated carbon fiber sheet 20 are laminated, or a molded body in which the resin-integrated carbon fiber sheet 20 is laminated with a resin-integrated carbon fiber sheet including another carbon fiber sheet. Thus provided are: a fiber-reinforced resin molded body in which the carbon fiber sheet is surface-modified and which has high interlayer fracture toughness; and a method for producing a carbon fiber sheet to be used for the same.

Inventors:
KASUYA AKIRA
KAKIMI NAOKI
Application Number:
PCT/JP2020/005136
Publication Date:
August 20, 2020
Filing Date:
February 10, 2020
Export Citation:
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Assignee:
KURASHIKI BOSEKI KK (JP)
International Classes:
B29B11/16; B29C70/10; B29C70/20; B29C70/30; B32B5/28; D02J1/18; D06M23/16; B29K105/08; B29L9/00
Domestic Patent References:
WO2013099741A12013-07-04
Foreign References:
JP2012106461A2012-06-07
JPS5643435A1981-04-22
JPH10292238A1998-11-04
JP2017132932A2017-08-03
Other References:
See also references of EP 3925752A4
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (JP)
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