Lg Chem, Ltd

Taebin Ahn

Chang Sun Han

Yong Seok Choi

Hyemin Lee

Hyunsup Lee

Yeon Woo Hong

Young Jae Hur

Yeon Soo Kim

Dong Hoon Park

Eunji Shin

Jihye Ryu

Chang Hun Han

Dong Hyun Kim

Bu Gon Shin

Jeong Ho Park

Jae Hoon Choe

Soo Jin Lee

Eun Kyu Her

Chang Hun Lee

Chanjoong Kim

Woongchan Jeong

A method of preparing a superabsorbent polymer includes preparing a base resin in which an acrylic acid-based monomer having acidic groups which are at least partially neutralized and an internal crosslinking agent are crosslinked; and heating the base resin in the presence of a surface crosslinking agent to carry out surface modification of the base resin, wherein the internal crosslinking agent includes a first epoxy crosslinking agent having an epoxy equivalent weight of 100 g/eq or more to less than 130 g/eq, and a second epoxy crosslinking agent having an epoxy equivalent weight of 130 g/eq or more. A superabsorbent polymer having improved rewetting property liquid permeability is also provided.

Superabsorbent polymer and preparation method for the same

Provided are a superabsorbent polymer and a preparation method thereof. More particularly, provided are a superabsorbent polymer including a fine powder reassembly, wherein the superabsorbent polymer exhibits excellent absorption performances and absorption rate, and does not cause deterioration of physical properties such as water retention capacity (CRC) or absorbency under pressure (AUP), and a preparation method thereof.

Method of preparing superabsorbent polymer and superabsorbent polymer

A method of preparing a superabsorbent polymer includes preparing a base resin in which an acrylic acid-based monomer having acidic groups which are at least partially neutralized and an internal crosslinking agent are crosslinked in the presence of a sodium polycarboxylate surfactant; and heating the base resin in the presence of a surface crosslinking agent to carry out surface modification of the base resin, wherein the internal crosslinking agent includes a first epoxy crosslinking agent having an epoxy equivalent weight of 100 g/eq or more to less than 130 g/eq, and a second epoxy crosslinking agent having an epoxy equivalent weight of 130 g/eq or more. The superabsorbent polymer provides improved rewetting property and liquid permeability.

The present disclosure relates to a preparation method of a super absorbent polymer non-woven fabric and super absorbent polymer fibers prepared therefrom. According to the preparation method of the present disclosure, it is possible to provide super absorbent polymer fibers exhibiting high flexibility and fast absorption rate in the form of long fibers.

Super absorbent polymer non-woven fabric and preparation method of the same

The present invention relates to a superabsorbent polymer that not only has excellent basic absorption performance, but also exhibits more improved absorption speed, permeability, etc., and a method for preparing the same. The superabsorbent polymer includes a base polymer powder including: a first crosslinked polymer of water soluble ethylenically unsaturated monomers having acid groups of which at least a part are neutralized; and a surface crosslink layer that is formed on the base polymer powder, and further includes a second crosslinked polymer in which the first crosslinked polymer is additionally crosslinked by a C2-5 alkylene carbonate, wherein an absorption degree, SFC, an absorption speed, and a porosity fulfill specific ranges.

Superabsorbent polymer and method for preparing the same

Provided is a method of preparing a superabsorbent polymer. More particularly, provided is a method of preparing a superabsorbent polymer, the method capable of preparing the superabsorbent polymer maintaining excellent basic absorption performances such as centrifugal retention capacity, absorbency under load, etc. while also exhibiting an improved absorption rate.

Superabsorbent polymer and preparation method thereof

The present invention relates to a method for preparing spherical cured polymer particles from a curable composition. The method comprises the steps of: dropping a curable composition onto a substrate having a water contact angle of 150&#xb0; to 170&#xb0; at 25&#xb0; C. to form droplets of the curable composition; and curing the droplets to form the polymer particles.

Method for preparing polymer particles

The superabsorbent polymer has absorption under pressure/under no pressure, permeability, and absorption speed that are suitable for the application in thin hygienic goods, and simultaneously, inhibits the generation of dust in the preparation process of hygienic goods and does not exhibit blocking in the preparation process of the superabsorbent polymer.

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Daejeon, South Korea

Taebin Ahn