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:
Aug. 09, 2022
Filed:
Nov. 14, 2018
Lg Chem, Ltd., Seoul, KR;
Abstract
Provided are a superabsorbent polymer exhibiting more improved absorption rate and liquid permeability as well as excellent basic absorption performance, and a preparation method thereof. The superabsorbent polymer includes a base polymer powder including a crosslinked polymer of water-soluble ethylene-based unsaturated monomers having acidic groups which are at least partially neutralized; and a surface crosslinked layer which is formed on the base polymer powder and in which the base polymer powder is additionally crosslinked via a surface crosslinking agent, wherein the superabsorbent polymer includes 10% by number or more of superabsorbent polymer particles each particle having an aspect ratio of less than 0.5, the aspect ratio defined as the shortest diameter/the longest diameter of the superabsorbent polymer particle, and has SFC in a predetermined range.