Title:
METHOD FOR PRODUCING PRE-FORMED ARTICLE OR FORMED HEAT-INSULATING MATERIAL, AND PRE-FORMED ARTICLE OR FORMED HEAT-INSULATING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2011/052713
Kind Code:
A1
Abstract:
Provided is a method for preventing a phenomenon wherein carbon fibers are suspended in a forming tank of a pre-formed article (i.e., fiber suspension phenomenon) which results in forming defects in the pre-formed article and a decrease in product yield in producing a formed heat-insulating material.
This problem can be solved by a method for producing a formed heat-insulating material obtained by firing a pre-formed article comprising a carbon fiber and/or a fiber that can be converted into a carbon fiber and a phenol resin, comprising: a step (a) for dispersing the carbon fiber and/or the fiber that can be converted into a carbon fiber and the phenol resin in a solvent to give a slurry; a suction-forming step (b) for sucking off the solvent from the slurry to form a pre-formed article; and a step (c) for firing the pre-formed article, characterized in that the concentration of free phenol contained in the slurry, which is prepared in the slurry-preparation step as described above, is equal to or less than 150 ppm.
Inventors:
KAMEYAMA Takashi (3-3-2 Nihonbashi-Hamacho, Chuo-k, Tokyo 52, 〒1038552, JP)
亀山 貴 (〒52 東京都中央区日本橋浜町三丁目３番２号 株式会社クレハ内 Tokyo, 〒1038552, JP)
OKADA Yasushi (3-3-2 Nihonbashi-Hamacho, Chuo-k, Tokyo 52, 〒1038552, JP)
岡田 康 (〒52 東京都中央区日本橋浜町三丁目３番２号 株式会社クレハ内 Tokyo, 〒1038552, JP)
SHIBATA Fumio (3-3-2 Nihonbashi-Hamacho, Chuo-k, Tokyo 52, 〒1038552, JP)
柴田 文男 (〒52 東京都中央区日本橋浜町三丁目３番２号 株式会社クレハ内 Tokyo, 〒1038552, JP)
亀山 貴 (〒52 東京都中央区日本橋浜町三丁目３番２号 株式会社クレハ内 Tokyo, 〒1038552, JP)
OKADA Yasushi (3-3-2 Nihonbashi-Hamacho, Chuo-k, Tokyo 52, 〒1038552, JP)
岡田 康 (〒52 東京都中央区日本橋浜町三丁目３番２号 株式会社クレハ内 Tokyo, 〒1038552, JP)
SHIBATA Fumio (3-3-2 Nihonbashi-Hamacho, Chuo-k, Tokyo 52, 〒1038552, JP)
柴田 文男 (〒52 東京都中央区日本橋浜町三丁目３番２号 株式会社クレハ内 Tokyo, 〒1038552, JP)
Application Number:
JP2010/069264
Publication Date:
May 05, 2011
Filing Date:
October 29, 2010
Export Citation:
Assignee:
KUREHA CORPORATION (3-3-2, Nihonbashi-Hamacho Chuo-k, Tokyo 52, 〒1038552, JP)
株式会社クレハ (〒52 東京都中央区日本橋浜町三丁目３番２号 Tokyo, 〒1038552, JP)
KAMEYAMA Takashi (3-3-2 Nihonbashi-Hamacho, Chuo-k, Tokyo 52, 〒1038552, JP)
亀山 貴 (〒52 東京都中央区日本橋浜町三丁目３番２号 株式会社クレハ内 Tokyo, 〒1038552, JP)
OKADA Yasushi (3-3-2 Nihonbashi-Hamacho, Chuo-k, Tokyo 52, 〒1038552, JP)
岡田 康 (〒52 東京都中央区日本橋浜町三丁目３番２号 株式会社クレハ内 Tokyo, 〒1038552, JP)
SHIBATA Fumio (3-3-2 Nihonbashi-Hamacho, Chuo-k, Tokyo 52, 〒1038552, JP)
株式会社クレハ (〒52 東京都中央区日本橋浜町三丁目３番２号 Tokyo, 〒1038552, JP)
KAMEYAMA Takashi (3-3-2 Nihonbashi-Hamacho, Chuo-k, Tokyo 52, 〒1038552, JP)
亀山 貴 (〒52 東京都中央区日本橋浜町三丁目３番２号 株式会社クレハ内 Tokyo, 〒1038552, JP)
OKADA Yasushi (3-3-2 Nihonbashi-Hamacho, Chuo-k, Tokyo 52, 〒1038552, JP)
岡田 康 (〒52 東京都中央区日本橋浜町三丁目３番２号 株式会社クレハ内 Tokyo, 〒1038552, JP)
SHIBATA Fumio (3-3-2 Nihonbashi-Hamacho, Chuo-k, Tokyo 52, 〒1038552, JP)
International Classes:
B29B11/16; C08J5/24
Attorney, Agent or Firm:
MORITA Kenichi et al. (5th Fl, Itabashi-chuo Bldg. 67-8, Itabashi 2-chome, Itabashi-k, Tokyo 04, 〒1730004, JP)
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