Title:
FIBER-REINFORCED RESIN MOLDING MATERIAL AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2016/158436
Kind Code:
A1
Abstract:
The present invention is a fiber-reinforced resin molding material containing at least a matrix resin and bundled aggregates of discontinuous reinforcing fibers, wherein: the bundled aggregates of reinforcing fibers include both reinforcing fiber aggregates A having a shape formed by cutting after having performed a splitting treatment to completely split the strands of continuous reinforcing fibers into a plurality of bundles of strands, and reinforcing fiber aggregates B1 having a shape that includes unsplit parts where splitting treatment was inadequate and/or reinforcing fiber aggregates B2 having a shape not subjected to splitting treatment; and the proportion of the weight of the reinforcing fiber aggregates B1 with respect to the total weight of reinforcing fibers in the fiber-reinforced resin molding material, or the proportion of the total weight of the reinforcing fiber aggregates B1 and the reinforcing fiber aggregates B2 with respect to the total weight of reinforcing fibers in the fiber-reinforced resin molding material, is within a range of 50-95%. Provided are a fiber-reinforced resin molding material with which it is possible to achieve a good balance of excellent fluidity during molding and exceptional mechanical properties of the molded article, and a method for producing the same.
Inventors:
BAMBA KENTA (JP)
MOTOHASHI TETSUYA (JP)
MIYOSHI KATSUHIRO (JP)
HASHIMOTO TAKAFUMI (JP)
MOTOHASHI TETSUYA (JP)
MIYOSHI KATSUHIRO (JP)
HASHIMOTO TAKAFUMI (JP)
Application Number:
PCT/JP2016/058443
Publication Date:
October 06, 2016
Filing Date:
March 17, 2016
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08J5/06
Domestic Patent References:
| WO2016043037A1 | 2016-03-24 |
Foreign References:
| JP2008174605A | 2008-07-31 | |||
| JPH0347740A | 1991-02-28 | |||
| JPH05140335A | 1993-06-08 | |||
| JP2013049750A | 2013-03-14 | |||
| JP2009062474A | 2009-03-26 | |||
| JP2006077343A | 2006-03-23 |
Other References:
See also references of EP 3279243A4
Attorney, Agent or Firm:
BAN Toshimitsu et al. (JP)
Toshimitsu Ban (JP)
Toshimitsu Ban (JP)
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