Title:
THERMOPLASTIC RESIN PREPREG, PRODUCTION METHOD THEREOF, AND FIBER-REINFORCED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/213406
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a thermoplastic resin prepreg from which a fiber-reinforced composite material having excellent mechanical strength is obtained even when formed at a low temperature in a short period of time. The thermoplastic resin prepreg according to the present invention comprises at least: a fiber-reinforced base material; and a thermoplastic resin composition, the entirety or a part of which is impregnated into the fiber-reinforced base material, wherein the thermoplastic resin composition contains 50 mass% or more of polyetherketoneketone (PEKK) with respect to the whole thermoplastic resin composition, and has a crystallization enthalpy of 22 J/g or more as measured at a temperature decrease rate of 50 °C/min from 400 °C by using a differential scanning calorimeter (DSC).
Inventors:
ODA AKIMICHI (JP)
KUWAHARA HIROAKI (JP)
KUWAHARA HIROAKI (JP)
Application Number:
PCT/JP2020/015130
Publication Date:
October 22, 2020
Filing Date:
April 02, 2020
Export Citation:
Assignee:
TEIJIN LTD (JP)
International Classes:
C08L71/00; C08J5/04
Domestic Patent References:
| WO2018115490A1 | 2018-06-28 | |||
| WO2012176788A1 | 2012-12-27 | |||
| WO2018115739A1 | 2018-06-28 | |||
| WO2017056693A1 | 2017-04-06 |
Foreign References:
| JP2018138383A | 2018-09-06 | |||
| JP2017523256A | 2017-08-17 | |||
| JP2011513529A | 2011-04-28 | |||
| US3065205A | 1962-11-20 | |||
| US3441538A | 1969-04-29 | |||
| US3442857A | 1969-05-06 | |||
| US3516966A | 1970-06-23 | |||
| US4704448A | 1987-11-03 | |||
| US4816556A | 1989-03-28 | |||
| US6177518B1 | 2001-01-23 | |||
| JP2017149804A | 2017-08-31 |
Other References:
POLYMER, vol. 38, no. 14, 1997, pages 3441
See also references of EP 3957687A4
See also references of EP 3957687A4
Attorney, Agent or Firm:
TAMEYAMA Taro (JP)
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