Title:
METHOD FOR PRODUCING ALIPHATIC POLYESTER-BASED FOAM PARTICLES
Document Type and Number:
WIPO Patent Application WO/2024/090332
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing novel aliphatic polyester-based foam particles having a low apparent density. This problem can be solved by a method for producing aliphatic polyester-based foam particles, the method including: a dispersion step for, in a container, dispersing aliphatic polyester-based resin particles and a foaming agent in an aqueous dispersion medium; and a release step for opening one end of the container and releasing the dispersion liquid in the container into a region which is at a lower pressure than the pressure inside the container and which has a specific temperature and water vapor content.
Inventors:
MINAMI TETSUYA (JP)
Application Number:
PCT/JP2023/037951
Publication Date:
May 02, 2024
Filing Date:
October 20, 2023
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C08J9/18
Domestic Patent References:
| WO2019146555A1 | 2019-08-01 | |||
| WO2021002092A1 | 2021-01-07 |
Foreign References:
| JP2022102730A | 2022-07-07 | |||
| JP2022104389A | 2022-07-08 | |||
| JP2002096323A | 2002-04-02 | |||
| JPH10324766A | 1998-12-08 | |||
| JP2003003001A | 2003-01-08 | |||
| JP2004002597A | 2004-01-08 | |||
| JP2003231770A | 2003-08-19 | |||
| JP2004067945A | 2004-03-04 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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