Title:
METHOD FOR PREPARING SUPERABSORBENT POLYMER PARTICLE
Document Type and Number:
WIPO Patent Application WO/2024/071563
Kind Code:
A1
Abstract:
The present invention provides a method for preparing superabsorbent polymer particles, comprising the steps of: supplying, into a polymerization reactor, a composition comprising a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups, an internal cross-linking agent, and a polymerization initiator, and performing a polymerization reaction thereof to thereby obtain a hydrogel polymer; primary drying of the hydrogel polymer in a hot-air dryer to obtain a primary dried body; secondary drying of the primary dried body in a heat conduction-type dryer to obtain a secondary dried body; and pulverizing the secondary dried body to thereby obtain superabsorbent polymer particles.
Inventors:
KIM JONG HUN (KR)
KIM YONG JIN (KR)
HAN SOON YOUNG (KR)
YEO YONG HO (KR)
KIM YONG JIN (KR)
HAN SOON YOUNG (KR)
YEO YONG HO (KR)
Application Number:
PCT/KR2023/007518
Publication Date:
April 04, 2024
Filing Date:
June 01, 2023
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C08J3/24; C08F20/06; C08J3/12; F26B3/02; F26B3/18
Foreign References:
| KR20190077541A | 2019-07-03 | |||
| JP5405304B2 | 2014-02-05 | |||
| JP2022132184A | 2022-09-07 | |||
| KR20150141425A | 2015-12-18 | |||
| KR20110050947A | 2011-05-17 |
Attorney, Agent or Firm:
P&P PATENT LAW FIRM (KR)
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