Lg Chem, Ltd

Sang Gi Lee

Hye Mi Nam

Soo Jin Lee

Min Ho Hwang

Tae Hwan Jang

Chang Sun Han

Kyu Pal Kim

Chang Hun Lee

Gi Cheul Kim

Kwang Ho Park

Chang Hun Han

Mi Young Kim

Yong Hun Lee

Chul Hee Ryu

Hyemi Nam

Dong Hyun Ko

Ki Hyun Kim

Sung Soo Park

Sung Shik Eom

Seul Ah Lee

Sungshik Eom

O Hak Kwon

Bhom Ri Kim

Ji Joong Moon

You Moon Jeon

Donghyun Ko

Dae Sun Rew

Mookon Kim

Jiyoon Jeong

Jijoong Moon

Moo Kon Kim

Myung Han Lee

Jong Min Lee

Dae Woo Nam

Hyunsup Lee

Tae Yun Kim

Tae Young Won

Kwangin Shin

Yeon Soo Kim

Kum Hyoung Lee

Yeonsoo Kim

Junwye Lee

Se Yeol Park

Seung Mo Lee

Min Seok Jang

Hyejin Han

The present disclosure relates to a super absorbent polymer having a high water content and a method for preparing the same. The super absorbent polymer according to the present disclosure has a relatively high water content compared to a conventional one but has no degradation in absorption-related physical properties, and thereby can be used in various fields.

Super absorbent polymer and method for preparing same

The present disclosure relates to: a super absorbent polymer having a rapid absorption rate and maintaining elasticity even in a condition of being pressed multiple times, thereby having excellent dryness characteristic; and a preparation method therefor. The super absorbent polymer of the present disclosure exhibits excellent performance for use in hygiene materials such as diapers.

The present disclosure relates to a method for preparing a super absorbent polymer that enables the preparation of a more improved super absorbent polymer even without excessive use of a surfactant and use of a foaming agent, and a super absorbent polymer prepared therefrom which exhibits a superior absorption rate.

Preparation method of super absorbent polymer and super absorbent polymer prepared therefrom

The present invention relates to a super absorbent polymer. The super absorbent polymer contains polymer particles formed of large pores in a certain amount or more, and thus can exhibit large surface area and excellent initial absorption capacity. Therefore, when the super absorbent polymer is used, it can provide a sanitary material such as a diaper or a sanitary napkin which can quickly absorb body fluids and impart a dry and soft touch feeling.

A method of preparing super absorbent polymer includes carrying out a crosslinking polymerization of a monomer mixture comprising a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups, a forming agent, a foam-promoting agent and a silicone-based surfactant in the presence of an internal crosslinking agent to form a hydrogel polymer; drying, pulverizing and classifying the hydrogel polymer to form a base polymer powder; and further crosslinking a surface of the base polymer powder in the presence of a surface crosslinking agent to form a surface crosslinked layer. The method produces super absorbent polymer having not only an excellent absorbent capacity and an absorbency under load but also the rewetting phenomenon can be effectively prevented.

Super absorbent polymer

A SAP evaluation apparatus includes: a main body installed with a lifting bar that is raised or lowered; a container portion installed under the lifting bar in the main body and having an internal containing space for containing an absorber; an operating portion connected to the lifting bar and having a lifting plate that is raised or lowered within the containing space and applies pressure to the absorber and an injection portion for injecting an ink in the direction of the absorber; a dispersion measurement portion for measuring the dispersion of the ink through the absorber; and a controller installed at the main body to measure absorption of the ink into the absorber and measure swelling capacity of the absorber while the ink is injected into the absorber.

SAP evaluation apparatus

The present invention relates to a method for preparing a superabsorbent polymer, and a superabsorbent polymer prepared thereby. A superabsorbent polymer prepared by the preparation method exhibits minimized deterioration of physical properties after being pulverized, and thus basic absorbance performance is excellent and an excellent liquid permeability and absorbance rate can be exhibited.

Method for preparing superabsorbent polymer, and superabsorbent polymer prepared thereby

The present invention relates to a super absorbent polymer. The super absorbent polymer exhibits excellent initial absorption capacity, and thus can provide a sanitary material such as a diaper or a sanitary napkin which can quickly absorb body fluids and impart a dry and soft touch feeling.

A superabsorbent polymer having optimized gel strength and exhibiting an improved absorption rate without increasing a specific surface area by chemical foaming or a physical method, and a preparation method thereof, are provided.

Superabsorbent polymer and preparation method thereof

A method is provided for preparing a super absorbent polymer capable of exhibiting an excellent absorption rate by including a uniform porous structure through a simple and economical process. The method includes: performing a crosslinking polymerization of a water-soluble ethylenically unsaturated monomer to form a hydrogel polymer; drying and pulverizing the hydrogel polymer; classifying the pulverized polymer into polymer particles having a particle size of at least 10 to 150 &#x3bc;m, polymer particles having a particle size of 150 to 200 &#x3bc;m, and polymer particles having a particle size of 200 to 850 &#x3bc;m to form a base polymer powder having a particle size of 150 to 850 &#x3bc;m; and surface-crosslinking the base polymer powder, wherein in the crosslinking polymerization step, the foaming polymerization proceeds in the presence of polymer particles having an average particle size of 10 to 200 &#x3bc;m obtained in the classifying step and an anionic surfactant.

Method for preparing super absorbent polymer

A super absorbent polymer according to the present invention has an excellent discoloration resistance property even under high temperature/high humidity conditions, while maintaining excellent absorption performance, and is preferably used for hygienic materials such as diapers, and thus can exhibit excellent performance.

Super absorbent polymer and method for producing same

The present invention relates to a super absorbent polymer having not only excellent absorption rate and absorbency under load but also excellent rewetting properties, and a method for preparing the same.

Super absorbent polymer and method for preparing the same

The present invention relates to a method for preparing superabsorbent polymer that has not only excellent permeability and absorption speed, but also minimized absorbency under pressure decrease rate, and superabsorbent polymer prepared thereby.

Method for preparing superabsorbent polymer and superabsorbent polymer prepared thereby

The present invention relates to a super absorbent resin, and the super absorbent resin can exhibit a fast absorption rate and high gel strength even in a partially swollen state through the size optimization of partially swollen gel particles. Therefore, the use of the super absorbent resin can effectively prevent a rewetting phenomenon.

Super absorbent resin

The present invention relates to a super absorbent polymer and a preparation method thereof, the super absorbent polymer including: surface cross-linked polymer particles prepared by surface cross-linking particles of a base resin, the base resin polymerized from a monomer composition including water-soluble ethylene-based unsaturated monomers having at least partially neutralized acidic groups; and a water-soluble component, wherein the water-soluble component has a weight average molecular weight of 150,000 to 300,000 g/mol. The super absorbent polymer may have high centrifuge retention capacity and excellent permeability at the same time, while having low content of the water-soluble component.

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Daejeon, South Korea

Sang Gi Lee