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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 10829630 B1

PDFFull Text
Date of Patent:
Nov. 10, 2020

Filed:

Jan. 03, 2017

Super absorbent polymer

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Sung Jong Seo, Daejeon, KR;

Chang Sun Han, Daejeon, KR;

Hyemin Lee, Daejeon, KR;

Hyung Ki Yoon, Daejeon, KR;

Assignee:

LG Chem, Ltd., , KR;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Mark S Kaucher

Int. Cl.
CPC ...
C08L 33/08 (2006.01); C08J 3/075 (2006.01); C08J 3/24 (2006.01); C08F 6/28 (2006.01); A61L 15/60 (2006.01); C08J 3/12 (2006.01); C08F 2/44 (2006.01); C08F 2/10 (2006.01); C08F 6/00 (2006.01); A61F 13/53 (2006.01); C08F 20/06 (2006.01); C08F 20/18 (2006.01);
U.S. Cl.
CPC ...
C08L 33/08 (2013.01); A61L 15/60 (2013.01); C08F 2/10 (2013.01); C08F 2/44 (2013.01); C08F 6/008 (2013.01); C08F 6/28 (2013.01); C08J 3/075 (2013.01); C08J 3/12 (2013.01); C08J 3/24 (2013.01); C08J 3/245 (2013.01); A61F 13/53 (2013.01); A61F 2013/530481 (2013.01); C08F 20/06 (2013.01); C08F 20/18 (2013.01); C08F 2810/20 (2013.01); C08J 2300/14 (2013.01); C08J 2333/02 (2013.01);
Abstract

The present invention relates to a super absorbent polymer which maintains excellent absorption performance and retains physical properties even after being physically damaged by an external force. The super absorbent polymer comprises: a base polymer powder including a first cross-linked polymer of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups; and a surface cross-linked layer formed on the base polymer powder and including a second cross-linked polymer in which the first cross-linked polymer is further cross-linked via an alkylene carbonate having 2 to 5 carbon atoms, wherein the super absorbent polymer satisfies predetermined physical properties.

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