Title:
EPOXY RESIN COMPOSITION, MOLDING MATERIAL FOR FIBER-REINFORCED COMPOSITE MATERIAL, AND FIBER-REINFORCED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/112111
Kind Code:
A1
Abstract:
The purposes of the present invention are: to provide an epoxy resin composition having excellent impregnation into reinforcing fibers, excellent shapability under low-temperature conditions after thickening, and excellent heat resistance after curing; to provide a molding material for a fiber-reinforced composite material, said molding material having excellent shapability during handling and excellent fluidity during press molding; and to provide a fiber-reinforced composite material having excellent heat resistance and bending strength. To achieve the abovementioned purposes, the present invention provides an epoxy resin composition containing all of the following components (A)-(D), wherein: the content of the component (A), in terms of 100 mass% of the total mass of the epoxy resin composition, is 30-95 mass%; and the ratio Wc/Wd of the content Wc of the component (C) to the content Wd of the component (D) is 0.01-10. Component (A) is an epoxy resin; component (B) is a curing agent; component (C) is a diisocyanate compound having consecutive double bonds, an alicyclic structure or a heterocyclic structure; and component (D) is a polyisocyanate compound excluding the component (C).
Inventors:
ISHIKAWA NORIKAZU (JP)
TAKAMOTO TATSUYA (JP)
TOMIOKA NOBUYUKI (JP)
TAKAMOTO TATSUYA (JP)
TOMIOKA NOBUYUKI (JP)
Application Number:
PCT/JP2020/044789
Publication Date:
June 10, 2021
Filing Date:
December 02, 2020
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08G59/44; C08G18/58; C08G18/75; C08G18/76; C08G18/79; C08J5/24; C08K3/04; C08K7/06; C08L75/04
Foreign References:
| JP2019014797A | 2019-01-31 | |||
| JP2007138136A | 2007-06-07 | |||
| JP2005247879A | 2005-09-15 | |||
| JP2015229763A | 2015-12-21 | |||
| JPH0578445A | 1993-03-30 | |||
| JP2010517848A | 2010-05-27 | |||
| JP2017082128A | 2017-05-18 |
Other References:
See also references of EP 4071192A4
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