Lerner, David, Littenberg, Krumholz & Mentlik, LLP
Method for preparing super absorbent resin
Disclosed is a method of preparing a superabsorbent polymer, including a) subjecting a monomer composition composed of a water-soluble ethylenic unsaturated monomer and a polymerization initiator to thermal polymerization or photopolymerization, thus preparing a hydrous gel polymer, b) drying the hydrous gel polymer, c) grinding the dried hydrous gel polymer, d) adding the ground hydrous gel polymer with particles having i) a BET specific surface area of 300 to 1500 m2/g and ii) a porosity of 50% or more and with a surface crosslinking agent, and e) performing a surface crosslinking reaction.
LG Chem, Ltd.
B C C C C B A C C C B
B01J C08F C08F C08F C08J B01J A61L C08J C08J C08J B01J
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Kyoung-Shil Young-In Seung-Mo Young-Sam Ye-Hon
Oh Yang Lee Kim Kim