Title:
EPOXY RESIN COMPOSITIONS AND FIBER-REINFORCED COMPOSITE MATERIALS PREPARED THEREFROM
Document Type and Number:
WIPO Patent Application WO/2018/073652
Kind Code:
A3
Abstract:
An epoxy resin composition for a fiber- reinforced composite material, comprising components [A], [B], [C], [D], and [E], wherein the epoxy resin composition when cured has a glass transition temperature greater than 220 °C and a storage modulus, as defined by a specific method, less than 35 MPa, as determined from an elastic shear modulus measured at a temperature of at least 35 °C higher than the glass transition temperature, wherein the components [A], [B], [C], [D], and [E] comprise: [A] at least one naphthalene-based epoxy resin having an EEW between 190 and 260 g/mol; [B] at least one epoxy resin having a functionality of three or more; [C] at least one amine curing agent; [D] at least one latent acid catalyst; and [E] at least one cycloaliphatic epoxy resin. This epoxy resin composition is useful in the molding of fiber-reinforced composite materials. More particularly, it is possible to offer an epoxy resin composition for a fiber- reinforced composite material where the cured material obtained by heating has a high level heat resistance and microcrack resistance.
Inventors:
LEHMAN BENJAMIN (US)
HUGHES JONATHAN (US)
TUN SWEZIN (US)
ARAI NOBOYUKI (US)
HUGHES JONATHAN (US)
TUN SWEZIN (US)
ARAI NOBOYUKI (US)
Application Number:
PCT/IB2017/001484
Publication Date:
June 07, 2018
Filing Date:
October 19, 2017
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08G59/68; C08J5/24
Domestic Patent References:
| WO2001092368A1 | 2001-12-06 | |||
| WO2017033056A1 | 2017-03-02 |
Foreign References:
| JP2004307766A | 2004-11-04 | |||
| JP2016132752A | 2016-07-25 | |||
| JP2016160352A | 2016-09-05 |
Other References:
See also references of EP 3529294A4
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