Title:
POLYBENZAZOLE FIBER AND PYRIDOBISIMIDAZOLE FIBER
Document Type and Number:
WIPO Patent Application WO/2008/023719
Kind Code:
A1
Abstract:
[PROBLEMS] To provide fibers which retain the excellent heat resistance and flame
retardancy inherent in polybenzazole fibers and pyridobisimidazole fibers,
have improved post-processability, and neither necessitate a considerable change
in production process conditions nor require a high-temperature long-term heat
treatment, etc. [MEANS FOR SOLVING PROBLEMS] The fibers are a polybenzazole fiber
and a pyridobisimidazole fiber and each is characterized in that crystals are
present therein in such a state that a surface layer part (from the surface to 1
µm) of the fiber gives an electron beam diffraction pattern in which when
the area of a diffraction peak attributable to the crystal (200) plane in an equatorial-direction
profile is expressed by S1 and the area of a diffraction peak attributable to other
specific crystal planes is expressed by S2, then the value of S2/S1 is in a specific
range.
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Inventors:
KITAGAWA, Tooru (1-1 Katata 2-chom, Ohtsu-shi Shiga 92, 5200292, JP)
北河 享 (〒92 滋賀県大津市堅田二丁目１番１号 東洋紡績株式会社 内 Shiga, 5200292, JP)
KIRIYAMA, Kohei (1-1 Katata 2-Chom, Ohtsu-shi Shiga 92, 5200292, JP)
霧山 晃平 (〒92 滋賀県大津市堅田二丁目１番１号 東洋紡績株式会社 内 Shiga, 5200292, JP)
WATANUKI, Seiji (1-1 Katata 2-chom, Ohtsu-shi Shiga 92, 5200292, JP)
北河 享 (〒92 滋賀県大津市堅田二丁目１番１号 東洋紡績株式会社 内 Shiga, 5200292, JP)
KIRIYAMA, Kohei (1-1 Katata 2-Chom, Ohtsu-shi Shiga 92, 5200292, JP)
霧山 晃平 (〒92 滋賀県大津市堅田二丁目１番１号 東洋紡績株式会社 内 Shiga, 5200292, JP)
WATANUKI, Seiji (1-1 Katata 2-chom, Ohtsu-shi Shiga 92, 5200292, JP)
Application Number:
JP2007/066235
Publication Date:
February 28, 2008
Filing Date:
August 22, 2007
Export Citation:
Assignee:
TOYO BOSEKI KABUSHIKI KAISHA (2-8 Dojima Hama 2-chome, Kita-ku Osaka-shi Osaka, 30, 5308230, JP)
東洋紡績株式会社 (〒30 大阪府大阪市北区堂島浜二丁目２番８号 Osaka, 5308230, JP)
KITAGAWA, Tooru (1-1 Katata 2-chom, Ohtsu-shi Shiga 92, 5200292, JP)
北河 享 (〒92 滋賀県大津市堅田二丁目１番１号 東洋紡績株式会社 内 Shiga, 5200292, JP)
KIRIYAMA, Kohei (1-1 Katata 2-Chom, Ohtsu-shi Shiga 92, 5200292, JP)
霧山 晃平 (〒92 滋賀県大津市堅田二丁目１番１号 東洋紡績株式会社 内 Shiga, 5200292, JP)
東洋紡績株式会社 (〒30 大阪府大阪市北区堂島浜二丁目２番８号 Osaka, 5308230, JP)
KITAGAWA, Tooru (1-1 Katata 2-chom, Ohtsu-shi Shiga 92, 5200292, JP)
北河 享 (〒92 滋賀県大津市堅田二丁目１番１号 東洋紡績株式会社 内 Shiga, 5200292, JP)
KIRIYAMA, Kohei (1-1 Katata 2-Chom, Ohtsu-shi Shiga 92, 5200292, JP)
霧山 晃平 (〒92 滋賀県大津市堅田二丁目１番１号 東洋紡績株式会社 内 Shiga, 5200292, JP)
International Classes:
D01F6/74
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