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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 10799851 B1

PDFFull Text
Date of Patent:
Oct. 13, 2020

Filed:

Jun. 15, 2017

Method for producing super absorbent polymer and super absorbent polymer

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Ki Youl Yoon, Daejeon, KR;

Hyo Sook Joo, Daejeon, KR;

Gi Cheul Kim, Daejeon, KR;

Hyeon Choi, Daejeon, KR;

Ju Eun Kim, Daejeon, KR;

Assignee:

LG Chem, Ltd., , KR;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Joseph D Anthony

Int. Cl.
CPC ...
B01J 20/26 (2006.01); B01J 20/10 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); B01J 20/32 (2006.01); C08L 33/02 (2006.01); C08J 3/24 (2006.01); C08K 7/28 (2006.01); C08K 3/40 (2006.01); C08F 20/06 (2006.01); C08F 20/66 (2006.01); C08J 3/075 (2006.01); C08J 3/12 (2006.01);
U.S. Cl.
CPC ...
B01J 20/267 (2013.01); B01J 20/103 (2013.01); B01J 20/28004 (2013.01); B01J 20/28011 (2013.01); B01J 20/28021 (2013.01); B01J 20/3021 (2013.01); B01J 20/3085 (2013.01); B01J 20/321 (2013.01); B01J 20/3234 (2013.01); B01J 20/3293 (2013.01); C08F 20/06 (2013.01); C08F 20/66 (2013.01); C08J 3/075 (2013.01); C08J 3/12 (2013.01); C08J 3/24 (2013.01); C08J 3/245 (2013.01); C08K 3/40 (2013.01); C08K 7/28 (2013.01); C08L 33/02 (2013.01); C08J 2333/02 (2013.01); C08J 2333/18 (2013.01);
Abstract

The present invention relates to a super absorbent polymer having more improved absorbency under pressure and liquid permeability, and a method for producing the same. The super absorbent polymer comprises a base polymer powder including a cross-linked polymer of a monomer containing a water-soluble ethylenically unsaturated compound or its salt; and a surface cross-linked layer that is formed on the base polymer powder and is further cross-linked from the cross-linked polymer, wherein a glass hollow particle having a micron-scale particle size is included on the surface cross-linked layer.

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