Title:
成形材料、および、繊維強化プラスチック、ならびに、これらの製造方法
Document Type and Number:
Japanese Patent JP5572947
Kind Code:
B2
Abstract:
This invention provides a chopped fiber bundle comprising a large number of unidirectionally arranged reinforced fibers. The length of each of the reinforced fibers is in the range of 5 to 100 mm. The chopped fiber bundle has a transition segment in which the number of the reinforced fibers increases toward the central part of the chopped fiber bundle in the aligned direction of the reinforced fibers with both ends in the aligned of the reinforced fibers in the chopped fiber bundle being a starting point. The level of a change in total sectional area of the large number of reinforced fibers is not more than 0.05 mm 2 per mm in the aligned direction of the reinforced fibers over the whole area in the longitudinal direction of the chopped fiber bundle.
Inventors:
Ichiro Takeda
Wada field Eisuke
Shigemichi Sato
Wada field Eisuke
Shigemichi Sato
Application Number:
JP2008523059A
Publication Date:
August 20, 2014
Filing Date:
April 23, 2008
Export Citation:
Assignee:
Toray Industries, Inc.
International Classes:
C08J5/04; B29B15/08; B29C43/02; B29C70/06; C08J5/24; D06M15/564
Domestic Patent References:
| JP2004168566A | 2004-06-17 | |||
| JPH0343198A | 1991-02-25 | |||
| JPH06287817A | 1994-10-11 | |||
| JP2006501085A | 2006-01-12 | |||
| JP2005239806A | 2005-09-08 | |||
| JP2004168566A | 2004-06-17 | |||
| JPH0343198A | 1991-02-25 | |||
| JPH06287817A | 1994-10-11 | |||
| JP2006501085A | 2006-01-12 |