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US Patent 11773236 Method of preparing superabsorbent polymer sheet

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Patent attributes

Patent Applicant

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

Patent Inventor Names

Seongkyun Kang

Gicheul Kim

Kiyoul Yoon

Hyeon Choi

Ju Eun Kim

Date of Patent

October 3, 2023

Patent Application Number

16757158

Date Filed

September 10, 2019

Patent Citations

US Patent 11020725 Method of preparing superabsorbent polymer

US Patent 10391195 Super-absorbing polymers with rapid absorption properties and method for producing the same

US Patent 7163966 Superabsorbent polymer having increased rate of water absorption

US Patent 7615579 Superabsorbent polymer having increased rate of water absorption

US Patent 9737874 Water-absorbing polymer having a high absorption rate

US Patent 10065175 Superabsorbent polymer having high absorption rate under load and preparation method thereof

Patent Primary Examiner

Robert D Harlan

CPC Code

Patent abstract

Provided is a method of preparing a superabsorbent polymer sheet, including polymerization of monomers in the presence of an encapsulated foaming agent and an inorganic foaming agent. According to the method of preparing the superabsorbent polymer sheet of the present invention, a porous flexible superabsorbent polymer sheet may be prepared.

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