Title:
炭素繊維用サイジング剤、該サイジング剤による炭素繊維のサイジング方法、サイジング処理された炭素繊維及び該炭素繊維を使用した編織物
Document Type and Number:
Japanese Patent JP4094546
Kind Code:
B2
Abstract:
The present invention relates to a carbon fiber sizing agent comprised of water-soluble thermoplastic resin and amphoteric surfactant within a weight ratio range of 6/1 to 1/3, a carbon fiber sizing method comprising treating carbon fibers using a sizing liquid containing the aforementioned sizing agent, sized carbon fibers comprising adhering the aforementioned sizing agent to their surfaces, and a fabric that uses said carbon fibers. The carbon fiber sizing agent of the present invention has satisfactory solubility in water over a wide pH range, and is able to impart to carbon fibers adequate convergence for forming stable chopped carbon fibers, superior workability and satisfactory uniform tow dispersibility in water over a wide pH range. Since a fabric of the present invention demonstrates affinity to water over a wide pH range, it is suitable for applications such as immersing said fabric in an aqueous matrix in order to impregnate the fabric with that matrix.
Inventors:
Naoki Sugiura
Norihito Maki
Norihito Maki
Application Number:
JP2003517357A
Publication Date:
June 04, 2008
Filing Date:
July 30, 2002
Export Citation:
Assignee:
Mitsubishi Rayon Co., Ltd.
International Classes:
D06M15/59; B32B9/00; D06M13/342; D06M13/352; D06M101/40
Domestic Patent References:
| JP5106164A | ||||
| JP10102377A |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama