- Patent Title: Prepreg sheet, method for manufacturing same, unit layer with a covering material, method for manufacturing fiber-reinforced composite, and fiber-reinforced composite
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Application No.: US16585869Application Date: 2019-09-27
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Publication No.: US11421089B2Publication Date: 2022-08-23
- Inventor: Masahiro Ichino , Kazuhisa Ikeda , Satoshi Okamoto , Yuma Furuhashi
- 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: JPJP2017-073012 20170331
- Main IPC: C08J5/24
- IPC: C08J5/24 ; C08J5/04 ; C08J5/18
Abstract:
A prepreg sheet (1) is formed by stacking a plurality of unit layers (10a, 10b) In the unit layers (10a, 10b), prepreg tapes (100), in which a reinforced fiber bundle is impregnated with a thermosetting matrix resin composition, are disposed in rows a plurality of times. One or more of the unit layers (10a, 10b) has a gap (G) between adjacent prepreg tapes (100), and the width thereof is 10% or less of the width of the narrower of the adjacent prepreg tapes (100).
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