Invention Application
- Patent Title: FIBER-REINFORCED RESIN MOLDING MATERIAL AND PRODUCTION METHOD THEREOF
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Application No.: US15512333Application Date: 2015-08-31
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Publication No.: US20170260345A1Publication Date: 2017-09-14
- Inventor: Kenta Bamba , Tetsuya Motohashi , Katsuhiro Miyoshi , Takafumi Hashimoto
- Applicant: Toray Industries, Inc.
- Priority: JP2014-188635 20140917
- International Application: PCT/JP2015/074736 WO 20150831
- Main IPC: C08J5/04
- IPC: C08J5/04 ; C08J5/24

Abstract:
A fiber-reinforced resin molding material includes at least bundled discontinuous reinforcing fiber aggregates and matrix resin, wherein said bundled reinforcing fiber aggregates include both reinforcing fiber aggregates (A) which are formed by cutting continuous reinforcing fiber strands after fiber splitting, in which said strands are completely split into multiple bundles, and reinforcing fiber aggregates (B) having at least unsplit strand sections in which fiber splitting is incomplete, an incision substantially originating from fiber splitting is present at least at one of both end portions of said reinforcing fiber aggregates (B), and a ratio of the weight of said reinforcing fiber aggregates (B) to the total weight of reinforcing fibers in said material is 5-50%.
Public/Granted literature
- US10392482B2 Fiber-reinforced resin molding material and production method thereof Public/Granted day:2019-08-27
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