发明名称 |
POLYACRYLONITRILE-BASED COPOLYMER, POLYACRYLONITRILE-BASED PRECURSOR FIBER FOR CARBON FIBER, CARBON FIBER BUNDLES, PROCESS FOR PRODUCING FLAMEPROOFED FIBER BUNDLES, AND PROCESS FOR PRODUCING CARBON FIBER BUNDLES |
摘要 |
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. Also provided are: high-quality carbon fiber bundles which have a large single-fiber fineness and excellent productivity; a process for producing the same; and a process for producing flameproofed fiber bundles suitable for the production of the carbon fiber bundles. A polyacrylonitrile-based copolymer which comprises 93.0 to 99.4 mol% of acrylonitrile units, 0.5 to 4.0 mol% of (meth)acrylamide -based units, and 0.1 to 3.0 mol% of unsaturated carboxylic acid hydroxyalkyl ester units and in which the (meth)acrylamide-based units are (meth)acrylamide units and/or (meth)acrylamide derivative units having a molecular weight of 105 or less; a precursor fiber comprising the copolymer; a process for producing flameproofed fiber bundles which uses precursor fiber bundles consisting of the precursor fiber; carbon fiber bundles; and a process for production thereof. |
申请公布号 |
EP2735575(A1) |
申请公布日期 |
2014.05.28 |
申请号 |
EP20120817711 |
申请日期 |
2012.07.20 |
申请人 |
MITSUBISHI RAYON CO., LTD. |
发明人 |
SHINMEN, YUSUKE;HIROTA, NORIFUMI;AOYAMA, NAOKI;MATSUYAMA, NAOMASA;NII, TAKESHI;FUJII, YASUYUKI;IRIE, YOSHIKO;MATSUDA, HARUMI |
分类号 |
C08F220/48;C08F220/44;D01F6/18;D01F9/22 |
主分类号 |
C08F220/48 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|