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:
Apr. 01, 2025
Filed:
Aug. 11, 2020
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Ui Seok Chung, Daejeon, KR;
Kyu Pal Kim, Daejeon, KR;
Gyunhyeok Ahn, Daejeon, KR;
Gicheul Kim, Daejeon, KR;
Assignee:
LG Chem, Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/22 (2006.01); A61L 15/60 (2006.01); B01J 20/26 (2006.01); B01J 20/28 (2006.01); C08F 2/44 (2006.01); C08F 6/14 (2006.01); C08F 220/06 (2006.01); C08F 283/06 (2006.01); C08J 3/075 (2006.01); C08J 3/12 (2006.01); C08J 3/24 (2006.01); C08K 3/011 (2018.01); C08K 3/30 (2006.01); C08K 5/06 (2006.01); C08K 5/09 (2006.01); C08K 5/5317 (2006.01);
U.S. Cl.
CPC ...
C08F 2/22 (2013.01); A61L 15/60 (2013.01); B01J 20/261 (2013.01); B01J 20/267 (2013.01); B01J 20/28047 (2013.01); C08F 2/44 (2013.01); C08F 6/14 (2013.01); C08F 220/06 (2013.01); C08F 283/065 (2013.01); C08J 3/075 (2013.01); C08J 3/12 (2013.01); C08J 3/245 (2013.01); C08K 3/011 (2018.01); C08K 3/30 (2013.01); C08K 5/06 (2013.01); C08K 5/09 (2013.01); C08K 5/5317 (2013.01); B01J 2220/68 (2013.01); C08F 2810/20 (2013.01); C08J 2205/022 (2013.01); C08J 2333/02 (2013.01); C08K 2003/3045 (2013.01);
Abstract
A method for preparing a super absorbent polymer is directed to appropriate control of the water content of the super absorbent polymer by hydration to suppress crushing during transfer. The method also provides suppression of deterioration of physical properties of the super absorbent polymer such as production of giant particles and nonuniformity of water content during a hydration step.