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Super Absorbent Polymer and Method for Preparing Same
专利权人:
LG Chem; Ltd.
发明人:
Jung Min Sohn,Soo Jin Lee
申请号:
US16340891
公开号:
US20200223991A1
申请日:
2018.10.16
申请国别(地区):
US
年份:
2020
代理人:
摘要:
The present invention relates to a super absorbent polymer which not only has excellent basic absorption performance but also can improve rewet characteristics and leakage suppression characteristics of hygienic materials such as diapers, and a method for preparing the same. The super absorbent polymer includes: a base polymer powder including a first cross-linked polymer of a water-soluble ethylenically unsaturated monomer having an acidic group of which at least a part is neutralized; and a surface crosslinked layer that is formed on the base polymer powder and includes a second cross-linked polymer in which the first crosslinked polymer is further crosslinked via a surface crosslinking agent, wherein the surface crosslinking agent includes a mixture of plural kinds of cyclic alkylene carbonates, and where the mixture has a Hansen solubility parameter by hydrogen bonding component of 13 or more.
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