Lg Chem, Ltd

Gicheul Kim

Ki Hyun Kim

Yoon Jae Min

Hyeon Sik Choi

Seul Ah Lee

Kiyoul Yoon

Ju Eun Kim

Won Taeck Lim

Heechang Woo

Wonmun Choi

Seongkyun Kang

Jinuk Choi

Sung Soo Park

Kyu Pal Kim

Tae Yun Kim

Ui Seok Chung

Jong Hun Song

Yu Jin Kim

Yongjin Kim

Se Yeol Park

Hyosook Joo

Jeong Kug Cho

Gyunhyeok Ahn

Ji Eun Kim

Yong Seok Choi

Se Won Baek

Dae Woo Nam

Jun Kyu Kim

Sang Hwa Lee

Young Jae Hur

WonChan Park

In Yong Jeong

Kyunghoon Min

Jae Yul Kim

Kwang Hyon Kim

Young Cheol Jung

Mihee Kim

Sanghwa Lee

Sangwon Han

Yun Kyung Do

Jaeyul Kim

Yesol Yang

A minute cutting apparatus for a superabsorbent polymer hydrogel using a pump is disclosed. An embodiment of the present invention provides the minute cutting apparatus, including: a barrel body in which a transfer space through which the hydrogel is transferred is formed; a pumping unit installed in the barrel body to supply a pressing force to the transfer space, a rotation shaft rotatably installed in the transfer space of the barrel body; a driving motor configured to provide a rotational driving force to rotation shaft; a cutter member installed on the rotation shaft to pulverize the hydrogel transferred by the pressing force in the transfer space; and a perforated plate installed in the barrel body to discharge the hydrogel pulverized by the cutter member to an outside of the barrel body.

Minute cutting apparatus for super absorbent polymer hydrogel using pump

The present disclosure relates to a super absorbent polymer, and a preparation method thereof. More specifically, it relates to a super absorbent polymer prepared such that agglomeration between pulverized particles is suppressed, and drying efficiency and uniformity of particle size distribution are improved by including a carboxylic acid-based additive having a specific structure and hydrophobic particles before drying the hydrogel polymer, and a preparation method thereof.

Super absorbent polymer and preparation method thereof

The present disclosure relates to a polymer film, a preparation method of the same, and a polymer film laminate. Specifically, it relates to a new type of polymer film, which is thin and exhibits excellent absorption performance while having excellent flexibility and mechanical properties. In addition, the polymer film is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced. In addition, the present disclosure also relates to a preparation method of the above-described polymer film, and a polymer film laminate including the new type of polymer film.

Polymer film, preparation method thereof, and polymer film laminate comprising the same

This invention relates to a method for preparing a superabsorbent polymer, more specifically to a method for preparing a superabsorbent polymer that uses stearic acid or salts thereof in the process of reassembling fine powders, thereby improving processability in the preparation process of the superabsorbent polymer, and realizing excellent absorption properties.

Method for preparing superabsorbent polymer

The present disclosure relates to a preparation method of a super absorbent polymer composition. More specifically, it relates to a preparation method of a super absorbent polymer composition capable of pulverizing the hydrogel polymer to a normal particle size without agglomeration between particles by adding an additive having a specific structure, and significantly reducing the amount of fine powder generated during the process.

Preparation method of super absorbent polymer composition

A method for preparing a super absorbent polymer is directed to appropriate control of the water content of the super absorbent polymer by hydration to suppress crushing during transfer. The method also provides suppression of deterioration of physical properties of the super absorbent polymer such as production of giant particles and nonuniformity of water content during a hydration step.

Method for preparing super absorbent polymer

The present disclosure relates to a preparing method of a super absorbent polymer sheet and a super absorbent polymer sheet prepared therefrom. The preparing method of a super absorbent polymer sheet of the present disclosure may prepare a porous flexible super absorbent polymer sheet exhibiting high flexibility and fast absorption rate.

Preparing method of super absorbent polymer sheet and super absorbent polymer sheet prepared therefrom

A complex minute cutting apparatus for a superabsorbent hydrogel is disclosed. The complex minute cutting apparatus includes: a barrel body in which a transfer space through which a hydrogel is transferred is formed and a discharge part is formed at a side surface thereof; a transfer unit installed in the barrel body to transfer the hydrogel in the transfer space; and a plurality of cutting modules installed in the transfer unit to pulverize the hydrogel and discharging it to an outside of the discharge unit in a cut state.

Complex minute cutting apparatus for super absorbent polymer hydrogel

The present disclosure relates to a preparation method of a super absorbent polymer composition. More specifically, it relates to a preparation method of a super absorbent polymer composition capable of pulverizing the hydrogel polymer to a normal particle size without agglomeration between particles by adding an additive having a specific structure, reducing manufacturing cost by simultaneously performing a drying process and a surface cross-linking process, and significantly reducing the amount of fine powder generated during the process.

A method for preparing superabsorbent polymer is disclosed herein. In some embodiments, a method includes polymerizing a monomer composition to form a hydrogel polymer, wherein the monomer composition comprises a water soluble ethylenically unsaturated monomer and a polymerization initiator, drying and grinding the hydrogel polymer to prepare a base resin powder, surface cross-linking the base resin powder using a surface cross-linking agent to prepare surface cross-linked base resin powder, and hydrating the surface cross-linked base resin powder by pulse spraying water to prepare a superabsorbent polymer, wherein a scattering index of droplets generated during the pulse spraying is 5 to 10, and wherein the scattering index is calculated in accordance with the following Mathematical Formula 1. The superabsorbent polymer can have an improved moisture content to prevent surface property change of the superabsorbent polymer, and decreased amount of fine powder which improves processability during manufacture of articles using superabsorbent polymer.

The present disclosure relates to a novel cross-linking compound and a polymer using the same. More particularly, the present disclosure relates to a novel cross-linking compound that does not cause thermal decomposition at one end and thus prevents in advance the generation of volatile substances and decomposition products, and a polymer prepared using the same.

Cross-linking compound and polymer using the same

A method of preparing a super absorbent polymer and a superabsorbent polymer prepared from the same are disclosed herein. In some embodiments, a method includes mixing a mixture comprising fines having a particle diameter of 150 μm or less, a surface-modified inorganic material having a reactive functional group, and water, and drying the mixture to prepare a fine powder reassembly. There may be provided a super absorbent polymer exhibiting excellent absorption properties and mechanical properties such as crushing strength while having uniform particle size distribution by effectively reassembling fines obtained inevitably in the preparation of a super absorbent polymer.

Preparation method of super absorbent polymer

The present disclosure relates to a preparation method of a super absorbent polymer. More specifically, it relates to a preparation method of a super absorbent polymer capable of significantly reducing the amount of fine powder generated during the process by mixing a hydrogel polymer with an additive having a specific structure, pulverizing it, and then drying it with a paddle-type dryer.

The present disclosure relates to a method for preparing a crosslinker compound in which a crosslinker compound capable of using for the production of a super absorbent polymer can be obtained in a higher yield by a simple manner. The crosslinker compound obtained by the above method can be used as a thermally decomposable crosslinker in the process of producing a super absorbent polymer.

Method for preparing crosslinker compound

Provided are a novel crosslinking agent compound, and a superabsorbent polymer prepared by using the same. More particularly, provided are a crosslinking agent compound having a novel structure, which exhibits excellent crosslinking property and thermal degradability, and a superabsorbent polymer prepared by using the same.

Growing community of inventors

Daejeon, South Korea

Gicheul Kim