ACRYLONITRILE SWOLLEN YARN FOR CARBON FIBER, PRECURSOR FIBER BUNDLE, FLAME-PROOF FIBER BUNDLE, CARBON FIBER BUNDLE, AND PRODUCTION METHODS THEREOF

Title:

ACRYLONITRILE SWOLLEN YARN FOR CARBON FIBER, PRECURSOR FIBER BUNDLE, FLAME-PROOF FIBER BUNDLE, CARBON FIBER BUNDLE, AND PRODUCTION METHODS THEREOF

Document Type and Number:

WIPO Patent Application WO/2010/143680

Kind Code:

A1

Abstract:

Disclosed is a carbon fiber bundle for obtaining a fiber-reinforced resin having high mechanical characteristics. Specifically disclosed is an acrylonitrile swollen yarn for carbon fibers, which is not treated with an oil agent and has pores in the surface of a single fiber within a range of 0.3-2 pores/μm2 (inclusive), said pores having a width of 10 nm or more in the circumferential direction of the fiber. A precursor fiber obtained by treating the swollen yarn with a silicone oil agent has a silicon content of 1,700-5,000 ppm (inclusive), and a silicon content after 8-hour oil agent washing with methylethylketone using a Soxhlet extractor of 50-300 ppm (inclusive). The fiber is preferably composed of an acrylonitrile copolymer that contains 96.0-99.7% by mass (inclusive) of acrylonitrile and 0.3-4.0% by mass (inclusive) of an unsaturated hydrocarbon having one or more carboxyl groups or ester groups.

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Inventors:

HASHIMOTO HIROSHI (JP)
SUGIURA NAOKI (JP)
FUJII YASUYUKI (JP)
MATSUMURA HIROKO (JP)
OKUYA TAKAHIRO (JP)
OOKI ISAO (JP)
HATA MASAHIRO (JP)
WAKABAYASHI KOUKI (JP)
KOGAME AKIYOSHI (JP)
SUMIYA KAZUNORI (JP)
HATAYAMA AKITO (JP)

Application Number:

PCT/JP2010/059827

Publication Date:

December 16, 2010

Filing Date:

June 10, 2010

Export Citation:

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Assignee:

MITSUBISHI RAYON CO (JP)
HASHIMOTO HIROSHI (JP)
SUGIURA NAOKI (JP)
FUJII YASUYUKI (JP)
MATSUMURA HIROKO (JP)
OKUYA TAKAHIRO (JP)
OOKI ISAO (JP)
HATA MASAHIRO (JP)
WAKABAYASHI KOUKI (JP)
KOGAME AKIYOSHI (JP)
SUMIYA KAZUNORI (JP)
HATAYAMA AKITO (JP)

International Classes:

D01F6/18; D01F9/22

Foreign References:

JP2009046770A	2009-03-05
JPH04240220A	1992-08-27
JP2005133274A	2005-05-26
JPH055224A	1993-01-14
JPH0491230A	1992-03-24
JPH0615722B2	1994-03-02
JPH11124744A	1999-05-11

Other References: