Polyacrylonitrile copolymer, polyacrylonitrile precursor fiber for carbon fiber, carbon bundles, fabricating method of flame retardant bundles and fabricating method of carbon bundles

Provided are: a polyacrylonitrile-based precursor fiber for the production of a carbon fiber having a large single-fiber fineness, said precursor fiber ensuring high heat stability of a spinning dope and excellent productivity; and a copolymer suitable for the production of said precursor fiber. Als...

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Hauptverfasser: AOYAMA, NAOKI, HIROTA, NORIFUMI, MATSUYAMA, NAOMASA, FUJII, YASUYUKI, SHINMEN, YUSUKE, NII, TAKESHI, IRIE, YOSHIKO, MATSUDA, HARUMI
Format: Patent
Sprache:chi ; eng
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