Title:
LAYERED CARBON-FIBER PRODUCT, PREFORM, AND PROCESSES FOR PRODUCING THESE
Document Type and Number:
WIPO Patent Application WO/2011/074437
Kind Code:
A1
Abstract:
Disclosed is a layered carbon-fiber product obtained by superposing one or more sheets of carbon-fiber fabric each obtained using one or more carbon-fiber bundles each comprising a plurality of paralleled carbon fibers. The layered carbon-fiber product is characterized in that at least some of the surfaces and/or edge faces of the layered carbon-fiber product is constituted of a graphitized part and that the graphitized part gives a Raman spectrum in which the intensity ratio of the D band to the G band (D-band intensity/G-band intensity) is 0.3 or less. Also provided are a preform obtained using the layered carbon-fiber product and processes for producing the layered carbon-fiber product and the preform. The edge faces of the layered carbon-fiber product or preform can be easily processed, and it is possible to highly accurately trim the layered carbon-fiber product or preform while preventing the carbon fibers from fraying at the edge faces. Consequently, the layered carbon-fiber product and the preform can be easily and accurately disposed in a mold and deburring can be omitted, making it possible to attain a cost reduction and a reduction in production time.
Inventors:
YAMAMOTO Kohnosuke (Toray Industries Inc., 9-1, Oe-cho, Minato-ku, Nagoya-sh, Aichi 02, 〒4558502, JP)
山本晃之助 (〒02 愛知県名古屋市港区大江町９番地の１ 東レ株式会社 名古屋事業場内 Aichi, 〒4558502, JP)
YAMASAKI Masaaki (Toray Industries Inc., 9-1, Oe-cho, Minato-ku, Nagoya-sh, Aichi 02, 〒4558502, JP)
山本晃之助 (〒02 愛知県名古屋市港区大江町９番地の１ 東レ株式会社 名古屋事業場内 Aichi, 〒4558502, JP)
YAMASAKI Masaaki (Toray Industries Inc., 9-1, Oe-cho, Minato-ku, Nagoya-sh, Aichi 02, 〒4558502, JP)
Application Number:
JP2010/071863
Publication Date:
June 23, 2011
Filing Date:
December 07, 2010
Export Citation:
Assignee:
Toray Industries, Inc. (1-1 Nihonbashi Muromachi 2-chome, Chuo-ku Tokyo, 66, 〒1038666, JP)
東レ株式会社 (〒66 東京都中央区日本橋室町２丁目１番１号 Tokyo, 〒1038666, JP)
YAMAMOTO Kohnosuke (Toray Industries Inc., 9-1, Oe-cho, Minato-ku, Nagoya-sh, Aichi 02, 〒4558502, JP)
山本晃之助 (〒02 愛知県名古屋市港区大江町９番地の１ 東レ株式会社 名古屋事業場内 Aichi, 〒4558502, JP)
東レ株式会社 (〒66 東京都中央区日本橋室町２丁目１番１号 Tokyo, 〒1038666, JP)
YAMAMOTO Kohnosuke (Toray Industries Inc., 9-1, Oe-cho, Minato-ku, Nagoya-sh, Aichi 02, 〒4558502, JP)
山本晃之助 (〒02 愛知県名古屋市港区大江町９番地の１ 東レ株式会社 名古屋事業場内 Aichi, 〒4558502, JP)
International Classes:
B32B5/26; B29C70/06; B32B5/28; D06H7/22
Attorney, Agent or Firm:
BAN Toshimitsu (Honest International Patents, Shinko Bldg. 1-9, Nishishinjuku 8-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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