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US 12,496,570 B2Granted
Super absorbent polymer and preparation method thereof
AssigneeLG Chem, Ltd.
InventorDong Hyun Kim
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Abstract
Provided are a superabsorbent polymer that can uniformly maintain an excellent bacterial growth inhibition property and a deodorization property for a long time, while simultaneously maintaining excellent basic properties such as centrifuge retention capacity and absorption under pressure, and the like. A method for preparing the superabsorbent polymer is also provided.
Claims10
A superabsorbent polymer comprising
- a base resin powder comprising a crosslinked polymer of water-soluble ethylenically unsaturated monomers in which at least a part of the acid groups is neutralized;
- and
- a surface crosslinked layer formed on the base resin powder by additional crosslinking of the crosslinked polymer by a surface crosslinking agent,
- wherein the surface crosslinked layer comprises sodium diethyldithiocarbamate.
1 more element
Dependencies are inferred from the claim text.