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:
Mar. 22, 2022
Filed:
Apr. 30, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Kiyoul Yoon, Daejeon, KR;
Hyeon Choi, Daejeon, KR;
Gicheul Kim, Daejeon, KR;
Seongkyun Kang, Daejeon, KR;
Ju Eun Kim, Daejeon, KR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/26 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01);
U.S. Cl.
CPC ...
B01J 20/261 (2013.01); B01J 20/28033 (2013.01); B01J 20/3064 (2013.01); B01J 20/3085 (2013.01);
Abstract
A method of preparing a superabsorbent polymer sheet by polymerization of monomers in the presence of an encapsulated foaming agent and an inorganic foaming agent is provided. According to the method of preparing the superabsorbent polymer sheet of the present invention, a porous and flexible superabsorbent polymer sheet having an excellent initial absorption rate may be prepared.