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US 2022/0088569 A1Published application
Super Absorbent Polymer Composition and Preparation Method Thereof
AssigneeLG Chem, Ltd.
InventorsSujin Kim, Jun Kyu Kim
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Abstract
There are provided a superabsorbent polymer composition and a method for preparing the same, more specifically, a superabsorbent polymer composition exhibiting excellent absorption performance and a method for preparing the same.
Claims8
A method for preparing a superabsorbent polymer composition comprising:
- Conducting crosslinking polymerization of water soluble ethylenically unsaturated monomers having acid groups of which at least a part are neutralized, in the presence of an internal crosslinking agent, to form a hydrogel polymer;
- Drying, grinding and classifying the hydrogel polymer to obtain a base resin powder;
- and
- Surface crosslinking the base resin powder in the presence of a surface crosslinking solution comprising a cyclic carbonate-based surface crosslinking agent and sodium dodecyl sulfate to form superabsorbent polymer particles.
1 more element
A superabsorbent polymer composition comprising
- Superabsorbent polymer particles comprising crosslinked polymer of water soluble ethylenically unsaturated monomers having acid groups of which at least a part are neutralized;
- and
- Further comprising a surface crosslink layer formed by additional crosslinking of the crosslinked polymer by a cyclic carbonate-based surface crosslinking agent and sodium dodecyl sulfate, on at least a part of a surfaces of the superabsorbent polymer particles.
Dependencies are inferred from the claim text.