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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 10702626 B1

PDFFull Text
Date of Patent:
Jul. 07, 2020

Filed:

Nov. 27, 2017

Method for preparing superabsorbent polymer and superabsorbent polymer

Applicants:

Lg Chem, Ltd., Seoul, KR;

Seoul National University R&db Foundation, Seoul, KR;

Inventors:

Yong Seok Choi, Daejeon, KR;

Young Sam Kim, Daejeon, KR;

Jong Doo Lim, Daejeon, KR;

Jong-Chan Lee, Seoul, KR;

Na Kyung Kim, Seoul, KR;

Jinseok Kim, Incheon, KR;

Assignees:

LG Chem. Ltd., , KR;

Seoul National University R&DB Foundation, , KR;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Andrew J Oyer

Int. Cl.
CPC ...
A61L 15/60 (2006.01); C08F 2/44 (2006.01); C08J 3/24 (2006.01); C08J 3/12 (2006.01); C08J 3/075 (2006.01); C08F 2/10 (2006.01); A61L 15/46 (2006.01); C08F 2/48 (2006.01); C08K 3/22 (2006.01); A61L 15/18 (2006.01); A61L 15/26 (2006.01); A61L 15/44 (2006.01); B01J 20/06 (2006.01); B01J 20/26 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); A61L 15/42 (2006.01);
U.S. Cl.
CPC ...
A61L 15/60 (2013.01); A61L 15/18 (2013.01); A61L 15/26 (2013.01); A61L 15/44 (2013.01); A61L 15/46 (2013.01); B01J 20/06 (2013.01); B01J 20/267 (2013.01); B01J 20/28016 (2013.01); B01J 20/3021 (2013.01); B01J 20/3085 (2013.01); C08F 2/10 (2013.01); C08F 2/44 (2013.01); C08F 2/48 (2013.01); C08J 3/075 (2013.01); C08J 3/12 (2013.01); C08J 3/24 (2013.01); C08J 3/245 (2013.01); A61L 15/425 (2013.01); A61L 2300/102 (2013.01); A61L 2300/404 (2013.01); C08J 2333/02 (2013.01); C08K 2003/2248 (2013.01);
Abstract

The present invention relates to a method for preparing superabsorbent polymer that has antibacterial activity, in which the basic properties of superabsorbent polymer are maintained or improved, and may exhibits excellent bacterial proliferation inhibition effect, and superabsorbent polymer prepared thereby. The preparation method of superabsorbent polymer comprises the steps of: forming base polymer powder using hydogel polymer comprising crosslinked polymer, and then, surface crosslinking the base polymer powder using a surface crosslinking solution comprising a surface crosslinking agent and cuprous oxide, wherein the cuprous oxide is included in the content of 0.001 to 2.5 parts by weight, based on 100 parts by weight of the base polymer powder.

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