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Patent Searching and Data


Title:
REINFORCING CARBON FIBER BUNDLE, MANUFACTURING PROCESS THEREFOR, AND COMPOSITE-MANUFACTURING PROCESS USING SAME
Document Type and Number:
WIPO Patent Application WO/2013/172318
Kind Code:
A1
Abstract:
A reinforcing carbon fiber bundle with a sizing agent adhering to the surfaces of the carbon fibers, characterized in that the sizing agent comprises at least two components, namely, a first component that is not melted at 150°C and a second component that is fluidized at 150°C. It is preferable that: the second component is a copolymer resin; the first component takes the form of particles; the content (by weight) of the first component is at least twice that of the second component; and/or the first component adheres to the surfaces of the fibers through the second component. Further, it is also preferable that the melting point of the first component is 150°C or higher, while the melting point of the second component is lower than 150°C. Thus, the present invention provides an optimum reinforcing carbon fiber bundle for use in manufacturing a composite that exhibits improved impregnability and openability and excellent workability.

Inventors:
ONO TUBASA (JP)
SAKURAI HIROSHI (JP)
NAITO TAKESHI (JP)
Application Number:
PCT/JP2013/063348
Publication Date:
November 21, 2013
Filing Date:
May 14, 2013
Export Citation:
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Assignee:
TEIJIN LTD (JP)
International Classes:
D06M15/59; C08J5/06; D06M23/08; D06M101/40
Foreign References:
JPH09228248A1997-09-02
JP2013087396A2013-05-13
JP2013104156A2013-05-30
JP2007131959A2007-05-31
JP2003166174A2003-06-13
JP2012041658A2012-03-01
JPH07197381A1995-08-01
JP2006124847A2006-05-18
Other References:
See also references of EP 2851464A4
Attorney, Agent or Firm:
TAMEYAMA, Taro (JP)
a sake -- mountain Taro (JP)
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