Title:
METHOD FOR MANUFACTURING FIBER-REINFORCED RESIN PRODUCT, AND CORE
Document Type and Number:
WIPO Patent Application WO/2021/193524
Kind Code:
A1
Abstract:
The present disclosure provides a beneficial improvement in a method for manufacturing a fiber-reinforced resin product, the method comprising curing a prepreg preform under pressure using a core made of wax. The present disclosure pertains to a method for manufacturing a fiber-reinforced resin product, the method mainly comprising: a molding step in which a prepreg preform is placed in a mold together with a core, which is composed of a meltable portion made of wax and an outer skin covering the meltable portion, and the prepreg preform is heated and pressed in the mold to obtain a cured product; and a wax removal step for removing the wax from the cured product, wherein in the molding step, at least a portion of the prepreg preform is pressurized by the expansion of the core. In one example, the molding temperature in the molding step is 140°C or higher, at least a portion of the prepreg preform has a thickness of 1 mm or more, and the meltable portion has a first meltable portion made of a first wax having a melting point below 80°C.
More Like This:
| WO/2003/068476 | MOLDING PROCESSES AND EQUIPMENT FOR FORMING GOLF BALLS |
Inventors:
TAKANO TSUNEO (JP)
KAJI SATOSHI (JP)
HONMA TAKASHI (JP)
KAJI SATOSHI (JP)
HONMA TAKASHI (JP)
Application Number:
PCT/JP2021/011690
Publication Date:
September 30, 2021
Filing Date:
March 22, 2021
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
B29C33/76; B29C43/36; B29C70/54
Domestic Patent References:
| WO2018079824A1 | 2018-05-03 | |||
| WO2018079824A1 | 2018-05-03 |
Foreign References:
| JP2020032535A | 2020-03-05 | |||
| JP2019188707A | 2019-10-31 | |||
| JP2007307853A | 2007-11-29 | |||
| JP2020056726A | 2020-04-09 |
Other References:
See also references of EP 4129607A4
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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