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US 2023/0264172 A1Published application
Super Absorbent Polymer and Preparation Method Thereof
AssigneeLG Chem, Ltd.
InventorsSoonhee Kang, Seonjung Jung, Hyungsam Choi, Leehyeon Baek, Ji Seok Lee, Haesung Yun
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Abstract
The present disclosure relates to a super absorbent polymer, and a preparation method of the same. More specifically, there are provided a super absorbent polymer capable of exhibiting improved bacterial growth-inhibitory property without lowering absorption performance, and a preparation method of the same.
Claims12
A super absorbent polymer comprising
- a polymer of an acrylic acid-based monomer containing acidic groups in which at least a portion of the acidic groups is neutralized;
- a polymerizable antimicrobial monomer represented by the following Chemical Formula 1;
- and an internal cross-linking agent,
- wherein the polymerizable antimicrobial monomer is included in the polymer in an amount of 0.2 to 20 parts by weight based on 100 parts by weight of the acrylic acid-based monomer:
- in the Chemical Formula 1,
- R1 to R3 are each independently hydrogen or methyl, and
- A is a substituted or unsubstituted C6 to C60 aromatic ring.
4 more elements
A preparation method of a super absorbent polymer, comprising the steps of:
- preparing a monomer composition by mixing an acrylic acid-based monomer containing an acidic group, a polymerizable antimicrobial monomer represented by the following Chemical Formula 1, a basic material, an internal cross-linking agent, and a polymerization initiator;
- forming a hydrogel polymer by performing thermal polymerization or photopolymerization on the monomer composition;
- and
- forming a super absorbent polymer containing a polymer by drying, pulverizing and classifying the hydrogel polymer,
- wherein the polymerizable antimicrobial monomer is used in an amount of 0.2 to 20 parts by weight based on 100 parts by weight of the acrylic acid-based monomer:
- in the Chemical Formula 1,
- R1 to R3 are each independently hydrogen or methyl, and
- A is a substituted or unsubstituted C6 to C60 aromatic ring.
5 more elements
Dependencies are inferred from the claim text.