Lg Chem, Ltd

Tae Bin Ahn

Chang Sun Han

Dong Hyun Kim

Myung Han Lee

Hyun Sup Lee

Yong Hun Lee

Chul Hee Ryu

Yeon Soo Kim

Hwayoon Jung

Mi Young Kim

Jun Wye Lee

Sung Jong Seo

Seung Do Hong

The present invention relates to a method for preparing superabsorbent polymer. The method for preparing superabsorbent polymer according to the present invention enables providing superabsorbent polymer having excellent absorption ratio, absorption speed and permeability.

Preparation method of super absorbent polymer

The super absorbent polymer comprises: a base polymer powder including a first crosslinked polymer of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups; and a surface crosslinked layer formed on the base polymer powder and including a second crosslinked polymer in which the first crosslinked polymer is further crosslinked via a surface crosslinking agent, wherein the super absorbent polymer has: a fixed height absorption (FHA) of 22.5 g/g to 29 g/g, a saline flow conductivity (SFC) of 35 (&#xb7;10cm&#xb7;s/g) or more, and T-20 of 180 seconds or less.

Super absorbent polymer and method for producing same

The present invention relates to a super absorbent polymer which is excellent in various physical properties required for a super absorbent polymer, while exhibiting excellent water absorption capacity, absorption rate and liquid permeability, and a method for preparing the same.

Super absorbent polymer

The present invention relates to a method for preparing a super absorbent polymer. The method for preparing a super absorbent polymer according to the present invention can provide a super absorbent resin exhibiting fast absorption rate and high saline flow conductivity while having excellent absorption properties such as a centrifuge retention capacity and an absorbency under pressure, by using the polycarboxylic acid-based copolymer under pulverization of the hydrous gel phase polymer.

Method for preparing super absorbent polymer and super absorbent polymer prepared therefrom

The present invention relates to a method for preparing a super absorbent polymer. The method for preparing a super absorbent polymer according to the present invention can provide a super absorbent resin having fast absorption rate and high absorption properties under pressure by using the polycarboxylic acid-based copolymer under pulverization of the hydrous gel phase polymer.

Provided is a method of preparing a superabsorbent polymer. According to the method of preparing the superabsorbent polymer of the present invention, provided is a superabsorbent polymer having improved physical properties, in which the superabsorbent polymer has improved absorption rate and liquid permeability without reduction in centrifuge retention capacity or absorbency under load.

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Daejeon, South Korea

Tae Bin Ahn