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:
Jun. 02, 2020
Filed:
Dec. 23, 2016
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Ki Hyun Kim, Daejeon, KR;
Gi Cheul Kim, Daejeon, KR;
Won Mun Choi, Daejeon, KR;
Won Taeck Lim, Daejeon, KR;
Seul Ah Lee, Daejeon, KR;
Assignee:
LG Chem, Ltd., , KR;
Primary Examiner:
Int. Cl.
CPC ...
C08F 20/10 (2006.01); C08K 3/22 (2006.01); C08K 3/34 (2006.01); C08L 33/08 (2006.01); C08J 3/12 (2006.01); B01J 20/26 (2006.01); C08J 3/24 (2006.01); C08K 5/51 (2006.01); C08F 222/10 (2006.01);
U.S. Cl.
CPC ...
C08F 20/10 (2013.01); B01J 20/267 (2013.01); C08J 3/12 (2013.01); C08J 3/245 (2013.01); C08K 3/22 (2013.01); C08K 3/34 (2013.01); C08K 5/51 (2013.01); C08L 33/08 (2013.01); B01J 2220/68 (2013.01); C08F 222/102 (2020.02); C08F 2810/20 (2013.01); C08J 2333/02 (2013.01); C08J 2333/08 (2013.01); C08K 2003/2227 (2013.01); C08K 2003/2241 (2013.01);
Abstract
The present invention relates to a method for superabsorbent polymer that has a crosslinking density gradient increasing from the inside toward the outside, and thus, exhibits excellent properties with simultaneously improved centrifuge retention capacity and absorbency under load.