公开(公告)号：US20230149897A1

公开(公告)日：2023-05-18

申请号：US17916952

申请日：2022-01-14

Applicant: LG CHEM, LTD.

Inventor： Hyungki YOON ,  Young Jae HUR ,  Jin Hyuck JU ,  Taebin AHN ,  Dong Hoon PARK ,  Kwangin SHIN ,  Jae Soon KIM

IPC: B01J20/26 ,  C08F220/06 ,  C08J3/12 ,  C08J3/24 ,  B01J20/30

CPC classification number: B01J20/267 ,  B01J20/3021 ,  B01J20/3085 ,  C08F220/06 ,  C08J3/12 ,  C08J3/244 ,  C08J3/245 ,  C08F2810/20 ,  C08J2333/02

Abstract: The present disclosure relates to a method for preparing a super absorbent polymer. More specifically, it relates to a method for preparing a super absorbent polymer capable of preparing a super absorbent polymer in which the residual monomer content and the extractable content are simultaneously reduced by adding a reducing agent capable of a redox reaction with a thermal polymerization initiator before drying the hydrogel polymer.