Lotte Fine Chemical Co., Ltd.

Samsung Fine Chemicals Co., Ltd.

Shin Won Chemical Co., Ltd.

Shin Won Industrial Co., Ltd.

Hee Soo Kim

Min Kyoung Kim

Ki Chull Yun

Ye Jin Kim

Soo Youn Choi

Kwang Hee Lee

Sang Yob Kim

Jong Pil Chun

Sung Yeon Kim

Seok Keun Song

Soo Hee Park

The present disclosure relates to a method for manufacturing carboxymethyl cellulose particles, cellulose inducer particles manufactured by the method, and an absorbent article comprising same. The method comprises: (1) a step of obtaining alkalized cellulose by reacting a cellulose raw material with an alkalizer; (2) a step of obtaining carboxymethyl cellulose by reacting the alkalized cellulose with a carboxy methylating agent; (3) a primary cross-linking step of obtaining a slurry-phase carboxymethyl cellulose cross-linked body by reacting the carboxymethyl cellulose with a core cross-linker; (4) a step of washing and dehydrating after filtering the slurry-phase carboxymethyl cellulose cross-linked body; (5) a secondary cross-linking step of obtaining carboxymethyl cellulose having a core-shell structure by reacting the carboxymethyl cellulose cross-linked body having undergone Step (4) with a surface cross-linker; and (6) a step of obtaining carboxymethyl cellulose particles having a core-shell structure by drying and pulverizing the carboxymethyl cellulose having a core-shell structure.

Method for manufacturing carboxymethyl cellulose particles, carboxymethyl cellulose particles manufactured thereby, and absorbent article comprising same

The present invention provides a method of preparing a polyester-based polymer and a polyester-based polymer prepared by the method. The method of preparing the polyester-based polymer includes a prepolymerization step of polymerizing a dicarboxylic acid compound (A), a diol compound (B), and an aromatic branching agent (C) at 160-220&#xb0; C. to produce a prepolymer; and a condensation polymerization step of performing a condensation polymerization of the prepolymer at 200-250&#xb0; C., under a vacuum pressure of 0.1 to 2 Torr.

Method for preparing biodegradable polyester copolymer

There are provided a resin composition for foaming including a biodegradable resin and a foamed article made thereof. The resin composition for foaming according to the present invention includes an ethylene-vinyl acetate resin, a biodegradable polyester resin containing a monomer of a double bond compound, a cross-linking agent, a co-crosslinking agent, a filler, and a foaming agent. In the resin composition, the double bond in the biodegradable polyester resin can be chemically cross-linked to the ethylene-vinyl acetate resin by a cross-linking agent, so that a compatibility with the ethylene-vinyl acetate resin can be improved, processability (mold releasability) during a mixing and melting process can be improved, and a foaming property and a mechanical property of a foamed article can be remarkably improved.

Resin composition for foaming containing biodegradable resin, and foam manufactured therefrom

The present invention relates to a novel Mg&#x2014;Ti&#x2014;Al composite metal hydroxide and to production method therefor. Mg&#x2014;Ti&#x2014;Al composite hydroxide particles can be obtained by subjecting a solution containing a magnesium salt and a titanium salt to ultrasound processing and carrying out a high-temperature and high-pressure reaction with a solution containing an aluminum salt in the proportions of the metal elements comprised in the Mg&#x2014;Ti&#x2014;Al composite metal hydroxide, thereby giving the advantageous effects that the halogen capturing ability is excellent and, when used in a polymer, degradation and early-staining prevention properties and transparency are outstanding.

Mg-Ti-Al composite metal hydroxide having a laminated structure, and a production method therefore

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Gyeonggi-do, South Korea

Hee Soo Kim