Title:
METHOD FOR PRODUCING WATER-ABSORBING RESIN PARTICLES
Document Type and Number:
WIPO Patent Application WO/2022/075258
Kind Code:
A1
Abstract:
Disclosed is a method for producing water-absorbing resin particles including polymer particles. The method comprises a step in which a dry gel comprising a polymer and a crosslinking agent is pulverized to form a powder of polymer particles and a step in which the powder is heated to crosslink the polymer by reaction with the crosslinking agent.
Inventors:
ITO TAKASHI (JP)
Application Number:
PCT/JP2021/036621
Publication Date:
April 14, 2022
Filing Date:
October 04, 2021
Export Citation:
Assignee:
SUMITOMO SEIKA CHEMICALS (JP)
International Classes:
C08J3/12; B01J20/26; B01J20/30; C08F220/06
Domestic Patent References:
| WO2011111855A1 | 2011-09-15 | |||
| WO2011115221A1 | 2011-09-22 | |||
| WO2020184395A1 | 2020-09-17 | |||
| WO2019221154A1 | 2019-11-21 |
Foreign References:
| JP2017517620A | 2017-06-29 | |||
| JP2020094165A | 2020-06-18 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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