Lg Chem, Ltd

Hyo Min Kim

Dong Jo Ryu

Bog Ki Hong

Seung Hun Yang

Chang Bum Ko

Young Sam Kim

Jung Sup Han

Yong Su Park

Im Gyu Kim

Si Jung Lee

Sunghyun Park

Sungjong Seo

Imgyu Kim

Yoontae Hwang

Seungmo Lee

Naeun Lee

The present disclosure relates to a polyethylene, which is reacted with chlorine to prepare a chlorinated polyethylene having improved tensile strength and excellent processability during extrusion by optimizing a low molecular region in a molecular structure, and a CPE compound including the same.

Polyethylene and chlorinated polyethylene thereof

The present disclosure relates to a cement additive composition including a polycarboxylic acid-based copolymer. When the cement additive composition of the present disclosure is used for cement formulation, it may improve fluidity of the composition even in a high water reducing ratio range of the particle and effectively prevent slump loss of the cement formulation, while improving initial dispersibility due to excellent water reducing performance.

Cement additive composition comprising polycarboxylic acid-based copolymer

The present disclosure relates to a preparation method for an acrylic acid-based polymer. According to the preparation method for an acrylic acid-based polymer of the present disclosure, unreacted monomers may be reduced and a high quality acrylic acid-based polymer can be prepared. In addition, it is not necessary to increase the time or the temperature in the polymerization step or the aging step, thereby maintaining the high productivity.

Preparation method for acrylic acid-based polymer

Disclosed are a cement composition additive with improved compressive strength and workability, including a polycarboxylic acid copolymer and/or a salt thereof, zinc oxide particles, and a predetermined amount of gluconic acid and/or a salt thereof, and a cement composition containing the same.

Cement composition additive containing polycarboxylic acid copolymer, zinc oxide particles and gluconate

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Daejeon, South Korea

Hyo Min Kim