Invention Grant
- Patent Title: Method for manufacturing fiber-reinforced resin molding material, and device for manufacturing fiber-reinforced resin molding material
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Application No.: US15970935Application Date: 2018-05-04
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Publication No.: US10889025B2Publication Date: 2021-01-12
- Inventor: Tadao Samejima , Yukihiro Mizutori , Yasushi Watanabe , Junji Kanehagi , Masatoshi Kamata
- Applicant: Mitsubishi Chemical Corporation
- Applicant Address: JP Chiyoda-ku
- Assignee: Mitsubishi Chemical Corporation
- Current Assignee: Mitsubishi Chemical Corporation
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2015-254771 20151225,JP2016-079159 20160411
- Main IPC: B29C70/12
- IPC: B29C70/12 ; B29C70/50 ; C08J5/24 ; D01D11/02 ; D02J1/18 ; D04H1/4218 ; D04H1/4242 ; B29B15/12 ; D02J3/02 ; B29K105/12 ; B29K63/00 ; B29K307/04

Abstract:
Provided is a method for manufacturing a fiber-reinforced resin molding material having excellent productivity at low cost for manufacturing a fiber-reinforced resin molded article having excellent strength properties. Provided is a method for manufacturing a sheet-shaped fiber-reinforced resin molding material containing a plurality of cut fiber bundles and a resin impregnated between filaments of the cut fiber bundles, the method comprising an integrated material manufacturing step for obtaining an integrated material by collecting a sheet-shaped fiber bundle aggregate obtained by arranging and spreading a plurality of consecutive fiber bundles in a width direction.
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