Invention Grant
- Patent Title: Prepreg and production method therefor, slit tape prepreg, carbon fiber-reinforced composite material
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Application No.: US17253205Application Date: 2019-03-27
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Publication No.: US11939465B2Publication Date: 2024-03-26
- Inventor: Hiroshi Kobayashi , Taiki Maeyama , Daisuke Kido , Takashi Ikushima , Naofumi Hosokawa , Hirokazu Ohnishi
- Applicant: Toray Industries, Inc.
- Applicant Address: JP Tokyo
- Assignee: Toray Industries, Inc.
- Current Assignee: Toray Industries, Inc.
- Current Assignee Address: JP Tokyo
- Agency: BUCHANAN INGERSOLL & ROONEY PC
- Priority: JP 18120566 2018.06.26
- International Application: PCT/JP2019/013096 2019.03.27
- International Announcement: WO2020/003662A 2020.01.02
- Date entered country: 2020-12-17
- Main IPC: C08L63/00
- IPC: C08L63/00 ; C08J5/24
Abstract:
A prepreg having high processability and laminating performance and a method to produce such a prepreg is described, the prepreg comprising at least the components [A] to [E] shown below, and having a structure incorporating a first layer composed mainly of the component [A] and a first epoxy resin composition that contains the components [B] to [D] but which is substantially free of the component [E], and a second layer composed mainly of a second epoxy resin composition that contains the components [B] to [E],
[A] carbon fiber,
[B] epoxy resin,
[C] curing agent,
[D] thermoplastic resin, and
[E] particles containing a thermoplastic resin as primary component and having a volume-average particle diameter of 5 to 50 μm.
[A] carbon fiber,
[B] epoxy resin,
[C] curing agent,
[D] thermoplastic resin, and
[E] particles containing a thermoplastic resin as primary component and having a volume-average particle diameter of 5 to 50 μm.
Public/Granted literature
- US20210363316A1 PREPREG AND PRODUCTION METHOD THEREFOR, SLIT TAPE PREPREG, CARBON FIBER-REINFORCED COMPOSITE MATERIAL Public/Granted day:2021-11-25
Information query
