Title:
AQUEOUS TREATMENT AGENT FOR TREATING USED OR UNUSED ABSORBENT ITEM, METHOD FOR TREATING USED OR UNUSED ABSORBENT ITEM USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/136193
Kind Code:
A1
Abstract:
The present invention provides an aqueous treatment agent for separation/recovery of a used or unused absorbent item such as a disposable diaper, the treatment agent making it possible to easily separate constituting members of an absorbent item individually and at the same time, to inactivate the highly absorbent polymer and sterilize the absorbent item, thereby simplifying the process. The aqueous treatment agent for treating a used or unused absorbent item contains: a polar solvent (A) having an SP value of 10 to 13; an inorganic alkali compound (B); an alkali metal inorganic salt or an alkaline earth metal inorganic salt (C); and an aromatic sulfonate (D).
Inventors:
SHIGEEDA OSAMU (JP)
KINUGAWA MASASHI (JP)
KINUGAWA MASASHI (JP)
Application Number:
PCT/JP2023/000054
Publication Date:
July 20, 2023
Filing Date:
January 05, 2023
Export Citation:
Assignee:
KYOEISHA CHEMICAL CO LTD (JP)
International Classes:
B09B3/70; B01J20/34
Domestic Patent References:
| WO2021199895A1 | 2021-10-07 |
Foreign References:
| JP2020195994A | 2020-12-10 | |||
| JP2018171589A | 2018-11-08 | |||
| JP2011063658A | 2011-03-31 | |||
| CN103958584A | 2014-07-30 |
Attorney, Agent or Firm:
TASS MEISTER IP LAW FIRM (JP)
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