Title:
CARBON-FIBER-REINFORCED COMPOSITE MATERIAL AND METHOD FOR PRODUCING CARBON-FIBER-REINFORCED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/048259
Kind Code:
A1
Abstract:
The present invention provides: a carbon-fiber-reinforced composite material having exceptional tackiness as well as compatibility and interfacial adhesiveness with epoxy resins, the carbon-fiber-reinforced composite material being capable of realizing high mechanical strength; and a method for producing a carbon-fiber-reinforced composite material. The present invention is a carbon-fiber-reinforced composite material containing carbon fibers, an epoxy resin, a curing agent, and a polyvinyl acetal resin, wherein the polyvinyl acetal resin contains structural units represented by formula (1), and R1 in formula (1) is a C1 or higher alkyl group. In formula (1), R1 may be the same or different.
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Inventors:
YOSHIDA HARUKA (JP)
OOTA AYAKO (JP)
OOTA AYAKO (JP)
Application Number:
PCT/JP2022/035485
Publication Date:
March 30, 2023
Filing Date:
September 22, 2022
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
C08J5/24; C08F8/48; C08F16/38; C08G59/00; C08K7/06; C08L29/14; C08L63/00
Domestic Patent References:
| WO2017104771A1 | 2017-06-22 |
Foreign References:
| JP2006335791A | 2006-12-14 | |||
| JPH05186667A | 1993-07-27 | |||
| JP2009292976A | 2009-12-17 | |||
| JP2015160938A | 2015-09-07 | |||
| JP2018150635A | 2018-09-27 |
Attorney, Agent or Firm:
WISEPLUS IP FIRM (JP)
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