Title:
METHOD FOR MANUFACTURING FIBER-REINFORCED RESIN ARTICLE, AND FIBER-REINFORCED RESIN ARTICLE
Document Type and Number:
WIPO Patent Application WO/2022/220247
Kind Code:
A1
Abstract:
The present invention provides a beneficial improvement relating to a method for manufacturing a fiber-reinforced resin article having at least partially a structure comprising a bent or curved wall surface, such as a hollow structural portion or a U-shaped cross-sectional structural portion. This method for manufacturing a fiber-reinforced resin article comprises: a forming step in which a prepreg preformed body is heated in a press die together with a core made of a wax material to obtain a cured product; and a core removal step in which the core is removed from the cured product. The core has an expansion portion made of a first wax material, and a stamper portion made of a second wax material incompatible with the first wax material. The stamper portion is disposed on the surface of the core, and a section mirroring the surface shape of the stamper portion is formed on the surface of the cured product.
Inventors:
TAKANO TSUNEO (JP)
KAJI SATOSHI (JP)
HONMA TAKASHI (JP)
KAJI SATOSHI (JP)
HONMA TAKASHI (JP)
Application Number:
PCT/JP2022/017618
Publication Date:
October 20, 2022
Filing Date:
April 12, 2022
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
B29C33/52; B29C33/76; B29C43/34; B29C43/36; B29C70/16; B29C70/46; B29K101/10; B29K105/08; B29L22/00
Domestic Patent References:
| WO2020184163A1 | 2020-09-17 | |||
| WO2018079824A1 | 2018-05-03 |
Foreign References:
| JPH03144187A | 1991-06-19 | |||
| JPH11138647A | 1999-05-25 | |||
| JPS6013514A | 1985-01-24 | |||
| JP2019188707A | 2019-10-31 | |||
| JP2021069190A | 2021-04-30 | |||
| JP2021106583A | 2021-07-29 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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