Title:
CARBON FIBER BUNDLE, PREPREG, AND FIBER-REINFORCED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/107276
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a carbon fiber having an excellent strength development ratio when used in a composite material. The present invention, which resolves this problem, simultaneously satisfies expressions (1) and (2). Lc/d ≤ 3 (1)
TS × d × Lc > 6.0 × 105 (2)
Lc: X-ray crystallite size (Å)
D: single fiber diameter (µm)
TS: Strand tensile strength (MPa)
Inventors:
YOSHIDA SHUHEI (JP)
YOSHIKAWA HIDEKAZU (JP)
NAKAMURA YOSUKE (JP)
KAWAMOTO HIRONORI (JP)
SUZUKI TAKAYA (JP)
KANEKO TORU (JP)
YOSHIKAWA HIDEKAZU (JP)
NAKAMURA YOSUKE (JP)
KAWAMOTO HIRONORI (JP)
SUZUKI TAKAYA (JP)
KANEKO TORU (JP)
Application Number:
PCT/JP2018/043220
Publication Date:
June 06, 2019
Filing Date:
November 22, 2018
Export Citation:
Assignee:
TEIJIN LTD (JP)
TEIJIN CARBON EUROPE GMBH (DE)
TEIJIN CARBON EUROPE GMBH (DE)
International Classes:
D01F9/22
Domestic Patent References:
| WO1997045576A1 | 1997-12-04 |
Foreign References:
| JP2002327339A | 2002-11-15 | |||
| JP2008202207A | 2008-09-04 | |||
| JP2002294568A | 2002-10-09 | |||
| JP2015209605A | 2015-11-24 | |||
| JPH11217734A | 1999-08-10 | |||
| JPH11217734A | 1999-08-10 | |||
| JP2014194108A | 2014-10-09 | |||
| JP2006283225A | 2006-10-19 |
Other References:
"Epoxy Resin jER™", MITSUBISHI CHEMICAL CORPORATION, Retrieved from the Internet
ANONYMOUS: "Epoxy Resin jER™", MITSUBISHI CHEMICAL CORPORATION, 2021, XP055897951, Retrieved from the Internet
See also references of EP 3719184A4
ANONYMOUS: "Epoxy Resin jER™", MITSUBISHI CHEMICAL CORPORATION, 2021, XP055897951, Retrieved from the Internet
See also references of EP 3719184A4
Attorney, Agent or Firm:
TAMEYAMA Taro (JP)
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