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:
Sep. 29, 2026
Filed:
Dec. 04, 2024
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Kyungchan Min, Daejeon, KR;
Tae Yun Kim, Daejeon, KR;
Byoung Hyoun Kim, Daejeon, KR;
Sung Soo Park, Daejeon, KR;
Byung Hyun Park, Daejeon, KR;
Assignee:
LG Chem, Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 220/06 (2006.01); B01J 20/26 (2006.01); B01J 20/28 (2006.01);
U.S. Cl.
CPC ...
B01J 20/261 (2013.01); B01J 20/28004 (2013.01); B01J 20/28011 (2013.01); C08F 220/06 (2013.01);
Abstract
A polyacrylic acid (salt)-based super absorbent polymer has a swelling factor (SF) value of 85 to 110 derived by Equation 1. Equation 1 is SF=1+[(7,700/w)×(A-A)/A], wherein w is a weight (mg) of the super absorbent polymer, Ais an absorbance at 620 nm of a solution obtained by centrifuging an aqueous solution including the polyacrylic acid (salt)-based super absorbent polymer and Blue dextran under a condition of 200 G to 280 G, and Ais an absorbance at 620 nm of an aqueous solution including the Blue dextran, which is a reference sample.