The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 2025
Filed:
Jan. 14, 2022
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Hyungki Yoon, Daejeon, KR;
Young Jae Hur, Daejeon, KR;
Jin Hyuck Ju, Daejeon, KR;
Taebin Ahn, Daejeon, KR;
Dong Hoon Park, Daejeon, KR;
Kwangin Shin, Daejeon, KR;
Jae Soon Kim, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/12 (2006.01); B01J 20/26 (2006.01); B01J 20/30 (2006.01); C08F 220/06 (2006.01); C08J 3/24 (2006.01);
U.S. Cl.
CPC ...
B01J 20/267 (2013.01); B01J 20/3021 (2013.01); B01J 20/3085 (2013.01); C08F 220/06 (2013.01); C08J 3/12 (2013.01); C08J 3/244 (2013.01); C08J 3/245 (2013.01); C08F 2810/20 (2013.01); C08J 2333/02 (2013.01);
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.