FIBER-REINFORCED RESIN MOLDING MATERIAL

Title:

FIBER-REINFORCED RESIN MOLDING MATERIAL

Document Type and Number:

WIPO Patent Application WO/2016/043037

Kind Code:

A1

Abstract:

A fiber-reinforced resin molding material comprising bundled reinforcing fiber aggregates and matrix resin, the fiber-reinforced resin molding material being characterized in that: the bundled reinforcing fiber aggregates comprise both reinforcing fiber aggregates (A) which are formed by cutting continuous reinforcing fiber strands after fiber splitting, in which the strands are completely split into multiple bundles, and reinforcing fiber aggregates (B) having unsplit strand sections in which fiber splitting has not been performed and/or fiber splitting is incomplete; and the ratio of the weight of the reinforcing fiber aggregates (B) to the total weight of the reinforcing fibers in the material is in the range of 5-50%. The present invention is able to provide a fiber-reinforced resin molding material capable of achieving a good balance of both good flowability during molding and excellent mechanical properties of the molding.

Inventors:

BAMBA KENTA (JP)
MOTOHASHI TETSUYA (JP)
MIYOSHI KATSUHIRO (JP)
HASHIMOTO TAKAFUMI (JP)

Application Number:

PCT/JP2015/074736

Publication Date:

March 24, 2016

Filing Date:

August 31, 2015

Export Citation:

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Assignee:

TORAY INDUSTRIES (JP)

International Classes:

B29B11/16; C08J5/24; B29K31/00; B29K105/08

Domestic Patent References:

WO2013035705A1	2013-03-14
WO2013094702A1	2013-06-27

Foreign References:

JPH0347740A	1991-02-28
JPH0885111A	1996-04-02
JPS63211351A	1988-09-02
JP2013049750A	2013-03-14
JP2012001606A	2012-01-05

Other References: