Title:
EPOXY RESIN COMPOSITION FOR FIBER-REINFORCED COMPOSITE MATERIAL, PREFORM, AND FIBER-REINFORCED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/020045
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: an epoxy resin composition having excellent handleability at room temperature, and excellent resin impregnation properties when used as a fiber-reinforced composite material; a preform formed of the same; and a fiber-reinforced composite material. To solve the problem, an epoxy resin composition for a fiber-reinforced composite material according to an aspect of the present invention contains a component [A] and a component [B], and contains a component [b] as the component [B], wherein the difference in melting point between the component [A] and the component [B] is 0-60ºC, and the content of a crystalline component is at least 70 mass%. Component [A] is a crystalline epoxy resin. Component [B] is a crystalline curing agent. Component [b] is a crystalline curing agent composed of two or more crystalline monomer compounds and having a single melting point.
Inventors:
HIRANO MASANORI (JP)
TOMIOKA NOBUYUKI (JP)
TOMIOKA NOBUYUKI (JP)
Application Number:
PCT/JP2020/026542
Publication Date:
February 04, 2021
Filing Date:
July 07, 2020
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08G59/56; C08J5/24
Domestic Patent References:
| WO2019003824A1 | 2019-01-03 |
Foreign References:
| JP2016089165A | 2016-05-23 | |||
| JP2007083662A | 2007-04-05 | |||
| JPH02308809A | 1990-12-21 |
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