Title:
PREPARATION METHOD OF SUPER ABSORBENT POLYMER
Document Type and Number:
WIPO Patent Application WO/2020/149651
Kind Code:
A1
Abstract:
A preparation method of a super absorbent polymer, according to the present invention, wherein: in a process of grinding and classifying, following the formation and drying of a hydrogel polymer, the amount of fines generated which are 150 µm or smaller may be minimized by blocking particles having a specific size or smaller from also being included in the grinding; the particle size of a final product may be easily adjusted according to a target particle diameter setting of a classifier; and a super absorbent polymer exhibiting physical properties equal to or greater than those of conventional super absorbent polymers may be prepared.
Inventors:
WOO HEECHANG (KR)
SONG JONG HUN (KR)
KIM GICHEUL (KR)
MIN YOON JAE (KR)
KIM JAEYUL (KR)
SONG JONG HUN (KR)
KIM GICHEUL (KR)
MIN YOON JAE (KR)
KIM JAEYUL (KR)
Application Number:
PCT/KR2020/000761
Publication Date:
July 23, 2020
Filing Date:
January 16, 2020
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C08J3/12; C08F8/00
Domestic Patent References:
| WO2011034146A1 | 2011-03-24 |
Foreign References:
| KR20150090067A | 2015-08-05 | |||
| KR20110131131A | 2011-12-06 | |||
| JP2010522779A | 2010-07-08 | |||
| JP2015048386A | 2015-03-16 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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