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. 26, 2017
Filed:
Oct. 07, 2014
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Hyemin Lee, Daejeon, KR;
Jin Sook Ryu, Daejeon, KR;
Sung Hyun Park, Daejeon, KR;
Myung Han Lee, Daejeon, KR;
Assignee:
LG Chem, Ltd., , KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 20/26 (2006.01); B01J 20/30 (2006.01); C08F 2/00 (2006.01); C08F 20/10 (2006.01); C08J 3/075 (2006.01); A61L 15/60 (2006.01); C08F 6/00 (2006.01); C08L 101/14 (2006.01); C08F 6/26 (2006.01); C08F 120/06 (2006.01);
U.S. Cl.
CPC ...
B01J 20/267 (2013.01); A61L 15/60 (2013.01); B01J 20/261 (2013.01); B01J 20/3021 (2013.01); B01J 20/3085 (2013.01); C08F 2/00 (2013.01); C08F 6/008 (2013.01); C08F 6/26 (2013.01); C08F 20/10 (2013.01); C08F 120/06 (2013.01); C08L 101/14 (2013.01);
Abstract
The present invention relates to a superabsorbent polymer showing a low degree of decrease in absorption capacity, and a preparation method thereof. Specifically, the present invention provides a superabsorbent polymer having an excellent rewetting prevention ability such that moisture hardly leaks out under pressure even after a certain time, and a preparation method thereof, by preparing an acrylic resin with a high molecular weight main chain that is evenly cross-linked for maintaining high gel strength by minimizing an amount of an initiator with respect to a monomer.