US 2017/0361305 A1 · SUPERABSORBENT POLYMER AND METHOD FOR PREPARING THE SAME

Abstract

The present invention relates to superabsorbent polymer and a method for preparing the same. More specifically, the present invention relates to superabsorbent polymer with improved properties, comprising a dual cross-linking structure derived from alkyleneglycol multifunctional (meth)acrylate and modified nanoclay, and a method for preparing the same. According to the present invention, the modified nanoclay and alkyleneglycol multifunctional (meth)acrylate are used as internal crosslinking agents in the process of preparing superabsorbent polymer, thus contributing to improvement in the cross-linking degree and the properties of superabsorbent polymer.

Claims18

Dependent claims

Superabsorbent polymer comprising a crosslinked polymer of water soluble ethylenically unsaturated monomers having acid groups of which at least a part are neutralized,

wherein the crosslinked polymer comprises a crosslink structure derived from modified nanoclay on the basal surface or edge of which (meth)acrylate functional groups are introduced;
and alkyleneglycol multifunctional (meth)acrylate.

Dependencies are inferred from the claim text.

Facts

Application

15/323,142Filed 30 Jul 2015

Priority

KR 10-2014-00997024 Aug 2014

Published

21 Dec 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

B01J 20/267
Modified or post-treated polymers: cross-linked polymers
B01J 20/261
Synthetic macromolecular compounds: obtained by reactions only involving carbon to carbon unsaturated bonds
B01J 20/3021
Processes for preparing, regenerating, or reactivating: milling, crushing or grinding
B01J 20/3085
Processes for preparing, regenerating, or reactivating: chemical treatments not covered by groups B01J20/3007 - B01J20/3078

Superabsorbent polymer and method for preparing the same

Life of this patent

Superabsorbent polymer and method for preparing the same

Life of this patent

Abstract

Claims18