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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.:

US 9849439 B1

PDFFull Text
Date of Patent:
Dec. 26, 2017

Filed:

Oct. 07, 2014

Superabsorbent polymer and preparation method thereof

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;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Irina S Zemel

Assistant Examiner:

Jeffrey S Lenihan

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.

Find Patent Forward Citations

Lee, Hyemin. (2017). Superabsorbent polymer and preparation method thereof (U.S. Patent No. 9849439). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9849439

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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