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Title:
INTERMEDIATE FOR COMPOSITE MATERIAL MOLDING AND FIBER−REINFORCED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2003/018674
Kind Code:
A1
Abstract:
An intermediate for composite material molding which comprises carbon fibers and a resin composition containing a benzoxazine compound having, in the molecule, structural units I represented by the following structural formula (I), each of the carbon fibers having a sectional shape which is substantially truly circular&semi and a fiber−reinforced composite material obtained from the intermediate. (I) (In the formula, R1 is C1−12 chain alkyl, C3−8 cycloalkyl, phenyl, or phenyl substituted by C1−12 chain alkyl or a halogen&semi and the aromatic ring has a hydrogen atom bonded to at least one of the carbon atoms in the positions ortho and para to the carbon atom bonded to the oxygen atom.) The intermediate retains a high level of adhesion between the carbon fibers and the resin even in a high−humidity high−temperature atmosphere. It hence gives a fiber−reinforced composite material having excellent weatherability and a high degree of mechanical strength.

Inventors:
NATSUME NORIMITSU (JP)
ENDO ITARU (JP)
KISHI HAJIME (JP)
TERASHITA TAKESHI (JP)
NINOMIYA HIROAKI (JP)
SAKATA HIROAKI (JP)
Application Number:
PCT/JP2001/007184
Publication Date:
March 06, 2003
Filing Date:
August 22, 2001
Export Citation:
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Assignee:
TORAY INDUSTRIES (JP)
NATSUME NORIMITSU (JP)
ENDO ITARU (JP)
KISHI HAJIME (JP)
TERASHITA TAKESHI (JP)
NINOMIYA HIROAKI (JP)
SAKATA HIROAKI (JP)
International Classes:
C08J5/24; B29C70/06; B29C70/10; C08J5/04; C08K7/06; C08L63/00; C08L65/00; (IPC1-7): C08J5/24; C08G59/50; D06M13/335
Foreign References:
EP0789056A21997-08-13
JP2000017090A2000-01-18
JP2000007901A2000-01-11
JP2000017146A2000-01-18
JPH11158352A1999-06-15
JP2001310957A2001-11-06
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