Title:
FOAMABLE RESIN PARTICLES, PRE-FOAMED PARTICLES, AND SHAPED FOAM
Document Type and Number:
WIPO Patent Application WO/2020/184007
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing foamable resin particles that have a low VOC content and in which VOC off-gassing levels can be suppressed. This goal is achievable through foamable resin particles containing: a base resin comprising a styrene unit and an acrylonitrile unit as constituent units; and a foaming agent, wherein the ratio D2230/D1600 of absorbance at wavelength 2230 cm–1 and wavelength 1600 cm–1 in the infrared absorption spectrum of the surfaces of foam particles obtained by foaming the foamable resin particles is 0.8 or higher.
Inventors:
IIDA ATSUSHI (JP)
SUZUKI KIRITO (JP)
KIGUCHI TARO (JP)
SUZUKI KIRITO (JP)
KIGUCHI TARO (JP)
Application Number:
PCT/JP2020/004539
Publication Date:
September 17, 2020
Filing Date:
February 06, 2020
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C08J9/18
Domestic Patent References:
| WO2009096327A1 | 2009-08-06 |
Foreign References:
| JP4621449B2 | 2011-01-26 | |||
| JPS6140335A | 1986-02-26 | |||
| JPS60219032A | 1985-11-01 | |||
| JPH04292610A | 1992-10-16 | |||
| US5464915A | 1995-11-07 | |||
| JP2014062191A | 2014-04-10 | |||
| JP2018104550A | 2018-07-05 | |||
| JP2011195627A | 2011-10-06 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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