Title:
REINFORCED FIBER BUNDLE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2015/194457
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a reinforced fiber bundle that satisfies texture and convergence properties and is suitable for composite materials such as a random mat; and a method for producing the reinforced fiber bundle. The solution to the problem is a reinforced fiber bundle and a method for producing the same. In the reinforced fiber bundle, a sizing agent adheres to the surfaces thereof. The sizing agent comprises as the main component a thermoplastic resin, contains an emulsion or dispersion, and in terms of the sizing agent solid content, has a melt viscosity at 150˚C and a shear speed of 10s-1 of 50 to 300 Pa·s. Furthermore, preferably the sizing agent contains a water-soluble polymer, or the sizing agent contains a water-insoluble polymer, and preferably the reinforced fiber bundle is a carbon fiber bundle.
Inventors:
SAKURAI HIROSHI (JP)
KIMURA HIROSHI (JP)
KONDOU YUTAKA (JP)
NAITO TAKESHI (JP)
KIMURA HIROSHI (JP)
KONDOU YUTAKA (JP)
NAITO TAKESHI (JP)
Application Number:
PCT/JP2015/066906
Publication Date:
December 23, 2015
Filing Date:
June 11, 2015
Export Citation:
Assignee:
TEIJIN LTD (JP)
International Classes:
D06M15/59; C08J5/04; D06M101/40
Domestic Patent References:
| WO2013172318A1 | 2013-11-21 | |||
| WO2014038574A1 | 2014-03-13 |
Foreign References:
| JP2013177705A | 2013-09-09 | |||
| JP2012021255A | 2012-02-02 | |||
| JP2013104156A | 2013-05-30 | |||
| JP2014189013A | 2014-10-06 |
Attorney, Agent or Firm:
TAMEYAMA, Taro (JP)
a sake -- mountain Taro (JP)
a sake -- mountain Taro (JP)
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