Title:
METHOD FOR PRODUCING CROSS-LINKED POLYMER PARTICLES AND METHOD FOR PRODUCING WATER-ABSORBENT RESIN PARTICLES
Document Type and Number:
WIPO Patent Application WO/2021/246243
Kind Code:
A1
Abstract:
The method for producing cross-linked polymer particles according to the present invention comprises a step for obtaining a cross-linked polymer by polymerizing a monomer, a drying step for drying the cross-linked polymer, and a pulverizing step for pulverizing the cross-linked polymer after drying, wherein the difference between the surface temperature of the cross-linked polymer at the end of the drying step and the surface temperature of the cross-linked polymer at the start of the pulverizing step is more than 0°C and no more than 100°C.
Inventors:
NISHIDA MOE (JP)
Application Number:
PCT/JP2021/019821
Publication Date:
December 09, 2021
Filing Date:
May 25, 2021
Export Citation:
Assignee:
SUMITOMO SEIKA CHEMICALS (JP)
International Classes:
C08F6/06; A61F13/15; C08J3/12
Domestic Patent References:
| WO2018174175A1 | 2018-09-27 | |||
| WO2018135629A1 | 2018-07-26 | |||
| WO2019221235A1 | 2019-11-21 | |||
| WO2015030130A1 | 2015-03-05 |
Foreign References:
| JP2011190426A | 2011-09-29 | |||
| JP2018119142A | 2018-08-02 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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