Title:
炭素繊維用アクリロニトリル系前駆体繊維、その製造方法、及びその前駆体繊維から得られる炭素繊維
Document Type and Number:
Japanese Patent JP3933712
Kind Code:
B2
Abstract:
This invention relates to an acrylonitrile-based precursor fiber for the formation of a carbon fiber which is obtained by spinning an acrylonitrile-based copolymer (which contains not less than 90% by weight of acrylonitrile units as monomeric components, contains 5.0 x 10<-5> to 2.0 x 10<-4> equivalent/g of carboxylic acid groups and not less than 0.5 x 10<-5> equivalent/g of sulfate groups and/or sulfonic groups, and has protons and/or ammonium ions as counter ions to the carboxylic acid groups, sulfate groups and sulfonic groups) and treating the resulting coagulated filament, wherein the amount of iodine adsorbable to the acrylonitrile-based precursor fiber is not greater than 0.8% by weight based on the weight of the fiber. By using this precursor fiber, a carbon fiber having a high strength and a high elastic modulus can be easily formed.
Inventors:
Mitsuo Hamada
Hosako Yoshihiko
Teruyuki Yamada
Ryuji Shimizu
Hosako Yoshihiko
Teruyuki Yamada
Ryuji Shimizu
Application Number:
JP51417999A
Publication Date:
June 20, 2007
Filing Date:
August 25, 1998
Export Citation:
Assignee:
Mitsubishi Rayon Co., Ltd.
International Classes:
D01F6/38; D01F9/22
Domestic Patent References:
| JP60167931A | ||||
| JP5132813A | ||||
| JP4257313A | ||||
| JP4240220A | ||||
| JP4281008A | ||||
| JP5339813A |
Attorney, Agent or Firm:
Akio Miyazaki
Shinichi Iwata
Masaaki Ogata
Nobuyuki Kaneda
Ishibashi Masayuki
Katsuhiro Ito
Shinichi Iwata
Masaaki Ogata
Nobuyuki Kaneda
Ishibashi Masayuki
Katsuhiro Ito