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:
Mar. 24, 2026
Filed:
Nov. 10, 2021
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Seul Ah Lee, Daejeon, KR;
Yoon Jae Min, Daejeon, KR;
Ui Seok Chung, Daejeon, KR;
Gicheul Kim, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/26 (2006.01); B01J 20/28 (2006.01); B01J 20/32 (2006.01); C08F 220/06 (2006.01); C08J 3/24 (2006.01);
U.S. Cl.
CPC ...
B01J 20/267 (2013.01); B01J 20/28078 (2013.01); B01J 20/3282 (2013.01); B01J 2220/68 (2013.01);
Abstract
The present disclosure relates to a preparation method of a super absorbent polymer. More specifically, it relates to a preparation method of a super absorbent polymer with improved permeability and anti-caking efficiency while having a high absorption rate by adding an additive having a specific structure to the hydrogel polymer polymerized in the presence of an encapsulated foaming agent, followed by coarse pulverization.