Title:
PRESS MOLDING PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/021488
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a method for producing a fiber-reinforced resin molding by cold press-molding a fiber-reinforced resin material made of a thermoplastic resin and reinforcing fibers, wherein the fiber-reinforced resin molding has excellent moldability such that thin-walled moldings are obtained, the numerical value of bending strength divided by grammage (weight reduction index) is large, and external appearance is excellent. Said problem can be solved by a method for producing a fiber-reinforced resin molding by cold press-molding a fiber-reinforced resin material comprising reinforcing fibers and a thermoplastic resin using a mold with an upper mold and a lower mold. The fiber-reinforced resin molding production method is characterized in that the respective parameters for heating temperature, charge time, air-cooling rate, pressurization time, flow-stopping temperature, cooling rate during pressing, and time during which molding is possible simultaneously satisfy specified numerical ranges.
Inventors:
MITSUNAGA MASAKI (JP)
YOKOMIZO HODAKA (JP)
YOKOMIZO HODAKA (JP)
Application Number:
PCT/JP2017/027285
Publication Date:
February 01, 2018
Filing Date:
July 27, 2017
Export Citation:
Assignee:
TEIJIN LTD (JP)
International Classes:
B29C43/58
Domestic Patent References:
| WO2006010592A1 | 2006-02-02 |
Foreign References:
| JP2014047286A | 2014-03-17 |
Other References:
See also references of EP 3492233A4
Attorney, Agent or Firm:
TAMEYAMA Taro (JP)
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