Title:
METHOD FOR PRODUCING WATER-ABSORBING RESIN CONTAINING RECYCLED WATER-ABSORBING RESIN, AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/149576
Kind Code:
A1
Abstract:
Provided is a method comprising: a step for adding a recycled water-absorbing resin during the water-absorbing resin production process in which a monomer is used as the starting material; and/or a step for adding a recycled water-absorbing resin to a water-absorbing resin that has been produced but has not been used. The water-soluble content of this recycled water-absorbing resin is 30 wt% or less.
Inventors:
TAJIMA SHUN-ICHI (JP)
TORII KAZUSHI (JP)
KIMURA KAZUKI (JP)
TAMAKI MARIKO (JP)
MATSUI DAISUKE (JP)
KOBAYASHI NOBUHIRO (JP)
ISHIZAKI KUNIHIKO (JP)
TORII KAZUSHI (JP)
KIMURA KAZUKI (JP)
TAMAKI MARIKO (JP)
MATSUI DAISUKE (JP)
KOBAYASHI NOBUHIRO (JP)
ISHIZAKI KUNIHIKO (JP)
Application Number:
PCT/JP2023/003778
Publication Date:
August 10, 2023
Filing Date:
February 06, 2023
Export Citation:
Assignee:
NIPPON CATALYTIC CHEM IND (JP)
International Classes:
C08L101/14; A61F13/53; B01J20/26; B01J20/30; B29B17/02; C08J3/20; C08J11/06
Domestic Patent References:
| WO2021044690A1 | 2021-03-11 | |||
| WO2021162082A1 | 2021-08-19 | |||
| WO2012140981A1 | 2012-10-18 | |||
| WO2021075506A1 | 2021-04-22 |
Foreign References:
| JP2013198862A | 2013-10-03 | |||
| JP2003326161A | 2003-11-18 | |||
| JP2021000637A | 2021-01-07 | |||
| JP2020195994A | 2020-12-10 | |||
| JP2010207811A | 2010-09-24 | |||
| JP2021181507A | 2021-11-25 | |||
| US20170216815A1 | 2017-08-03 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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