Title:
CURABLE COMPOSITION, CURED PRODUCT, FIBER-REINFORCED COMPOSITE MATERIAL, AND MOLDED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2021/024893
Kind Code:
A1
Abstract:
The present invention provides: a curable composition having a urethane-modified epoxy resin (A) as an essential component of a main agent and an acid anhydride (B) as an essential component of a curing agent, wherein the curable composition is characterized in that the urethane-modified epoxy resin (A) is a reaction product having a polyisocyanate compound (a1), a polyether polyol (a2), and a hydroxyl-group-containing epoxy resin (a3) as essential reaction raw materials; a cured product of the curable composition; a fiber-reinforced composite material; a fiber-reinforced resin molded article; and a method for producing a fiber-reinforced resin molded article. This curable composition makes it possible to form a cured product having exceptional fracture toughness and tensile strength in the cured product.
Inventors:
KOBAYASHI ATSUKO (JP)
KIMURA MAKOTO (JP)
MATSUI SHIGEKI (JP)
KIMURA MAKOTO (JP)
MATSUI SHIGEKI (JP)
Application Number:
PCT/JP2020/029181
Publication Date:
February 11, 2021
Filing Date:
July 30, 2020
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C08G59/20; C08G18/48; C08G18/58; C08G59/42; C08J5/04
Domestic Patent References:
| WO2009051209A1 | 2009-04-23 | |||
| WO2019163577A1 | 2019-08-29 |
Foreign References:
| JP2015081329A | 2015-04-27 | |||
| JP2016011409A | 2016-01-21 | |||
| JP2011105916A | 2011-06-02 | |||
| JPS58191723A | 1983-11-09 | |||
| JP2015086374A | 2015-05-07 | |||
| JP2014077074A | 2014-05-01 | |||
| JPH02200427A | 1990-08-08 | |||
| JPH0820706A | 1996-01-23 | |||
| JP2018141143A | 2018-09-13 | |||
| JP2017082128A | 2017-05-18 |
Attorney, Agent or Firm:
OGAWA Shinji (JP)
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