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Title:
THERMOSETTING PREPREG COMPOSITION AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2000/058390
Kind Code:
A1
Abstract:
A thermosetting prepreg composition obtained by photopolymerizing a composition comprising at least one polymerizable unsaturated compound comprising an unsaturated polyester resin and/or a vinyl ester resin, a fiber reinforcement and/or a filler, a photopolymerization initiator, and a thermal polymerization initiator to precure the composition to such a degree that part of the radical-polymerizable unsaturated compound remains unreacted. The B-stage state of the thermosetting resin can be easily regulated, and a constant B-stage state can be realized.

Inventors:
Ohtani, Kazuo (673-8, Kubojima Kumagaya-shi, Saitama, 360-0831, JP)
Yamamoto, Tomio (13 Shihoden Honjo-shi, Saitama, Saitama, 367-0034, JP)
Sendai, Hidetake (3-22-40, Mizonokuchi Takatsu-ku Kawasaki-shi, Kanagawa, 213-0001, JP)
Sugita, Shuichi (Showa Denko K. K. 13-9, Shiba Daimon 1-chome Minato-ku, Tokyo, 105-8518, JP)
Kamata, Hirotoshi (Showa Denko K. K. Central Research Laboratory Kawasaki Research Laboratory 5-1, Ogimachi Kawasaki-ku Kawasaki-shi, Kanagawa, 210-0867, JP)
Watanabe, Takeo (Showa Denko K. K. Central Research Laboratory 1-1, Ohnodai 1-chome Midori-ku Chiba-shi, Chiba, 267-0056, JP)
Application Number:
PCT/JP1999/001601
Publication Date:
October 05, 2000
Filing Date:
March 29, 1999
Export Citation:
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Assignee:
Showa, Denko K. K. (13-9, Shiba Daimon 1-chome Minato-ku, Tokyo, 105-8518, JP)
Ohtani, Kazuo (673-8, Kubojima Kumagaya-shi, Saitama, 360-0831, JP)
Yamamoto, Tomio (13 Shihoden Honjo-shi, Saitama, Saitama, 367-0034, JP)
Sendai, Hidetake (3-22-40, Mizonokuchi Takatsu-ku Kawasaki-shi, Kanagawa, 213-0001, JP)
Sugita, Shuichi (Showa Denko K. K. 13-9, Shiba Daimon 1-chome Minato-ku, Tokyo, 105-8518, JP)
Kamata, Hirotoshi (Showa Denko K. K. Central Research Laboratory Kawasaki Research Laboratory 5-1, Ogimachi Kawasaki-ku Kawasaki-shi, Kanagawa, 210-0867, JP)
Watanabe, Takeo (Showa Denko K. K. Central Research Laboratory 1-1, Ohnodai 1-chome Midori-ku Chiba-shi, Chiba, 267-0056, JP)
International Classes:
C08L63/00; C08F283/01; C08F290/06; C08F299/04; C08J3/24; C08J5/24; C08K7/02; C08L67/06; (IPC1-7): C08J5/24; C08F283/01; C08F290/06
Foreign References:
JPH11106459A1999-04-20
JPH0557828A1993-03-09
JPH0977836A1997-03-25
JPS54143493A1979-11-08
JPH05286046A1993-11-02
JPH1067865A1998-03-10
JPH09296016A1997-11-18
Other References:
See also references of EP 1092744A4
Attorney, Agent or Firm:
Ishida, Takashi (A. Aoki, Ishida & Associates Toranomon 37 Mori Building 5-1, Toranomon 3-chome Minato-ku Tokyo, 105-8423, JP)
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