Title:
POLYAMIDE RESIN FOAMED PARTICLES AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2020/050301
Kind Code:
A1
Abstract:
Provided are polyamide resin foamed particles that comprise a foamed layer obtained by foaming a polyamide resin and in which a first DSC curve from among a first DSC curve and a second DSC curve includes: a melting peak (a characteristic peak) having a maximum temperature on a low-temperature side equal to or less than the maximum temperature of the melting peak of the second DSC curve; and a melting peak (a high-temperature peak) having a maximum temperature on a high-temperature side exceeding the maximum temperature of the second DSC curve. The maximum temperature of the melting peak of the second DSC curve is 180-280°C, the apparent density of the polyamide resin foamed particles is 10-300 kg/m3, and the closed cell ratio is 85% or more.
Inventors:
HAYASHI TATSUYA (JP)
HIRA AKINOBU (JP)
HIRA AKINOBU (JP)
Application Number:
PCT/JP2019/034725
Publication Date:
March 12, 2020
Filing Date:
September 04, 2019
Export Citation:
Assignee:
JSP CORP (JP)
International Classes:
C08J9/18
Domestic Patent References:
| WO2016052387A1 | 2016-04-07 | |||
| WO2016147582A1 | 2016-09-22 | |||
| WO2016147582A1 | 2016-09-22 |
Foreign References:
| JP2017066279A | 2017-04-06 | |||
| JP2016188342A | 2016-11-04 | |||
| JP2016190989A | 2016-11-10 | |||
| JPS61268737A | 1986-11-28 | |||
| JP2018043487A | 2018-03-22 | |||
| JP2018044127A | 2018-03-22 | |||
| JP2011105879A | 2011-06-02 | |||
| JP2011105879A | 2011-06-02 | |||
| JPS61268737A | 1986-11-28 |
Other References:
See also references of EP 3848408A4
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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