Title:
METHOD FOR RECOVERING SUPERABSORBENT POLYMER FROM SUPERABSORBENT-POLYMER-CONTAINING CONSTITUENT MATERIALS CONSTITUTING USED HYGIENE PRODUCTS, AND METHOD FOR PRODUCING RECYCLED SUPERABSORBENT POLYMER USING RECOVERED SUPERABSORBENT POLYMER
Document Type and Number:
WIPO Patent Application WO/2024/090234
Kind Code:
A1
Abstract:
Provided is a method for improving the recovery rate and purity in a method for recovering a superabsorbent polymer from superabsorbent-polymer-containing constituent materials constituting used hygiene products. This method includes recovering a superabsorbent polymer from superabsorbent-polymer-containing constituent materials constituting used hygiene products, the method comprising a preparation step (S30) for preparing a moist aggregate that contains inactivated-superabsorbent-polymer-containing constituent materials, and a separation step (S20) for applying vibration to the aggregate to separate the superabsorbent polymer from the constituent materials.
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Inventors:
KONISHI TAKAYOSHI (JP)
ISHIKAWA YOSHIHIDE (JP)
ISHIKAWA YOSHIHIDE (JP)
Application Number:
PCT/JP2023/037136
Publication Date:
May 02, 2024
Filing Date:
October 13, 2023
Export Citation:
Assignee:
UNICHARM CORP (JP)
International Classes:
B29B17/02; B09B3/70; B09B101/67
Domestic Patent References:
| WO2021044690A1 | 2021-03-11 | |||
| WO2016059964A1 | 2016-04-21 |
Foreign References:
| JP2021007910A | 2021-01-28 | |||
| JP2003200147A | 2003-07-15 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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