- Patent Title: Fiber-reinforced resin molding material and molded article thereof
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Application No.: US17287801Application Date: 2019-10-30
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Publication No.: US12030218B2Publication Date: 2024-07-09
- Inventor: Yasukazu Ono , Takafumi Hashimoto , Tetsuya Motohashi , Tadashi Watanabe
- Applicant: Toray Industries, Inc.
- Applicant Address: JP Tokyo
- Assignee: Toray Industries, Inc.
- Current Assignee: Toray Industries, Inc.
- Current Assignee Address: JP Tokyo
- Agency: DLA Piper LLP (US)
- Priority: JP 2018205381 2018.10.31
- International Application: PCT/JP2019/042545 2019.10.30
- International Announcement: WO2020/090877A 2020.05.07
- Date entered country: 2021-04-22
- Main IPC: B29B11/16
- IPC: B29B11/16 ; B29K105/12 ; B29K101/10

Abstract:
A fiber-reinforced resin molding material [C] includes a chopped fiber bundle [A] and a matrix resin [B], the material being characterized in that, when divided into n layers along the thickness direction of the fiber-reinforced resin molding material [C], the number-average fiber length [Lk] of the chopped fiber bundle [Ak] constituting each layer Fk (1≤k≤n) gradually increases from one outermost layer F1 of the fiber-reinforced resin molding material [C] toward the other outermost layer Fn. Also provided is a molded article obtained by molding the fiber-reinforced resin molding material. This fiber-reinforced resin molding material exhibits excellent flowability, and can exhibit excellent mechanical properties when made into a molded article.
Public/Granted literature
- US20210323196A1 FIBER-REINFORCED RESIN MOLDING MATERIAL AND MOLDED ARTICLE THEREOF Public/Granted day:2021-10-21
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