Title:
EPOXY RESIN COMPOSITION, INTERMEDIATE SUBSTRATE, AND FIBER-REINFORCED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/217894
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an epoxy resin composition which exhibits a high level of deforming capacity and fracture toughness and from which a resin cured product maintaining heat resistance can be obtained. The epoxy resin composition according to the present invention satisfies condition 1 or condition 2 below, wherein the resin cured product obtained by reacting the epoxy resin composition at 150 °C for 60 minutes has a tensile elongation at break of 7% or more. Condition 1: including all the following components [A], [B], and [C], component [A]: a bifunctional aliphatic epoxy resin having a specific structure, component [B]: a terminal carboxy-modified acrylic rubber, and component [C]: a dicyandiamide. Condition 2: including the following components [D], [E], and [F] and satisfying conditions [a] and [b] below, component [D]: core-shell type rubber particles, component [E]: a boric ester compound, component [F]: a curing agent, condition [a]: including 9-18 parts by mass of component [D] with respect to 100 parts by mass of the total epoxy resin, and condition [b]: 0.003 ≤ (the content of component [E] / the content of component [D]) ≤ 0.05.
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Inventors:
KONISHI DAISUKE (JP)
YAMAKITA YUICHI (JP)
HANABUSA HIDEKI (JP)
HIRANO NORIYUKI (JP)
TSUZUKI MASAHIRO (JP)
YAMAKITA YUICHI (JP)
HANABUSA HIDEKI (JP)
HIRANO NORIYUKI (JP)
TSUZUKI MASAHIRO (JP)
Application Number:
PCT/JP2020/014989
Publication Date:
October 29, 2020
Filing Date:
April 01, 2020
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08G59/22; C08G59/50; C08J5/24; C08L51/04; C08L63/00
Domestic Patent References:
| WO2018181802A1 | 2018-10-04 | |||
| WO2017099060A1 | 2017-06-15 |
Foreign References:
| CN109370496A | 2019-02-22 | |||
| JPH03190920A | 1991-08-20 | |||
| JPS5224287A | 1977-02-23 | |||
| JP2011515546A | 2011-05-19 | |||
| JP2019059911A | 2019-04-18 | |||
| JP2007031526A | 2007-02-08 | |||
| JP2003240127A | 2003-08-27 | |||
| JPH09227693A | 1997-09-02 | |||
| JP2011157491A | 2011-08-18 | |||
| JPH09157498A | 1997-06-17 |
Other References:
See also references of EP 3960789A4
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