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Title:
PREPREG, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING FIBER-REINFORCED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/107457
Kind Code:
A1
Abstract:
The present invention provides a prepreg which is characterized by being composed of: a reinforcing fiber substrate that is composed of reinforcing fibers; and an epoxy resin composition, some or all of which is impregnated into the reinforcing fiber substrate. This prepreg is also characterized in that: the epoxy resin composition contains, as essential ingredients, an epoxy resin, an amine-based curing agent and polyamide particles; the epoxy resin composition contains, as an optional ingredient, an epoxy resin-soluble thermoplastic resin; and epoxy groups are introduced into the surfaces of the polyamide particles and/or at least one of the epoxy resin, the amine-based curing agent and the epoxy resin-soluble thermoplastic resin contained in the epoxy resin composition is partially permeated into the polyamide particles.

Inventors:
ODA AKIMICHI (JP)
KUWAHARA HIROAKI (JP)
KAWAMOTO HIRONORI (JP)
Application Number:
PCT/JP2018/043881
Publication Date:
June 06, 2019
Filing Date:
November 28, 2018
Export Citation:
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Assignee:
TEIJIN LTD (JP)
International Classes:
C08J5/24
Domestic Patent References:
WO2017061502A12017-04-13
WO2017061502A12017-04-13
WO2015130368A22015-09-03
Foreign References:
JP2014141656A2014-08-07
JP2017501904A2017-01-19
JP2012528224A2012-11-12
JP2012046690A2012-03-08
JPS60243113A1985-12-03
EP3360919A12018-08-15
JP2014141656A2014-08-07
Other References:
See also references of EP 3719062A4
Attorney, Agent or Firm:
KIMURA, Yoshihiro (JP)
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