CURABLE RESIN COMPOSITION, CURED PRODUCT, PREPREG, CURED PRODUCT OF PREPREG, LAMINATED STRUCTURE, CURABLE RESIN COMPOSITION PRODUCTION METHOD, AND CURED PRODUCT PRODUCTION METHOD

WIPO Patent Application WO/2023/219157

A1

The present invention pertains to: a curable resin composition which contains an epoxy resin and a modified lignin having undergone chemical modification by polyethylene glycol, and in which the epoxy resin and the modified lignin are in a non-compatible state; a curable resin composition which contains an epoxy resin, a modified lignin having undergone chemical modification by polyethylene glycol, and fibers, and from which a cured product having a void rate of 3% or less is obtained, the cured product being obtained by processing the curable resin composition into a sheet having a thickness of 0.2 mm, obtaining a test piece having a thickness of 1 mm by laminating five of the sheets, and thermally curing the same at a pressure of 0.3 MPa and a temperature of 150°C; and a curable resin composition which contains an epoxy resin, a modified lignin, and a curing agent, and in which the amount of heat generated in association with curing changes over time.

ICHIKAWA DAIKI (JP)
KUNITA MAIKO (JP)
TAYAMA KOSUKE (JP)
MIZUNO YASUKO (JP)

PCT/JP2023/017880

November 16, 2023

May 12, 2023

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SUPER RESIN INC (JP)

C08L63/00; B32B5/24; B32B5/26; C08G59/54; C08H7/00; C08J5/04; C08J5/24; C08K5/21; C08K5/315; C08K7/02; C08L71/02; C08L97/00

JP2003277615A	2003-10-02
JP2018104688A	2018-07-05
JP2020203968A	2020-12-24
JP2021014125A	2021-02-12
JP2017197517A	2017-11-02
JPH04106128A	1992-04-08
JP2019108490A	2019-07-04
CN113717400A	2021-11-30

INABA, Yoshiyuki et al. (JP)

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