Lg Chem, Ltd

Bog Ki Hong

Yi Young Choi

Sun Mi Kim

Ki Soo Lee

Sung Min Lee

Chang Woan Han

Si Jung Lee

Jin Young Park

Soon Ho Sun

Kyung Jin Cho

Sunghyun Park

Cheolhwan Jeong

Se Young Kim

Yong Ho Lee

Min Seok Cho

Myung Han Lee

Eun Kyoung Song

Sung Hyun Park

Sung Hyun Kim

Dae Hwan Kim

Sung Ho Park

Hyun Sup Lee

Daesik Hong

Joongsoo Kim

Jinseok Lee

Ue Ryung Seo

Changsub Kim

Seung Hee Lee

Keon Woo Lee

Chang Soon Lee

Sang Kyu Kwak

Joong Soo Kim

Myunghan Lee

Ye Jin Lee

Hyuck Ju Kwon

Dong Kung Oh

Yeonsoo Kim

Won Jin Chung

Jinyoung Kwak

Sun Hwa Kim

Chang Hyun Cho

Seung Jin Yang

Hyo Min Kim

Kyoung Hoon Min

Beom Su Park

Jong Hwi Hwang

Jae Joon Kim

Soung Hun Yoo

Chang Kwon Chung

Mi Ae Kim

Hyeong Il Lee

Han Kook Kim

Sang Moon Yoo

Jinmo Kim

Kiju Um

Yo Han Bae

Naeun Lee

Jaeyoung Cho

The present disclosure relates to an ethylene/1-hexene copolymer having excellent flexibility and processability and useful for manufacturing high-pressure heating pipes, PE-RT pipes or large-diameter pipes.

Ethylene/1-hexene copolymer having improved flexibility and processibility

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

A polyethylene according to the present disclosure maintains a stable crystal structure at a high temperature and ensures excellent uniformity in chlorine distribution, thereby preparing a chlorinated polyethylene having excellent chlorination productivity and thermal stability by reacting with chlorine, and may also prepare a PVC compound with improved impact strength by including the chlorinated polyethylene.

Provided is an ethylene/1-hexene copolymer which has excellent long-term physical properties and processability, and thus may be usefully applied to manufacturing high-pressure resistant heating pipes, PE-RT pipes, large-diameter pipes, or the like.

Ethylene/1-hexene copolymer having excellent long-term physical properties and processability

There are provided a polyethylene capable of improving tensile strength while maintaining excellent processability and Mooney viscosity characteristics when preparing a chlorinated polyethylene compound by implementing a molecular structure having a low content of low molecular weight and a high content of high molecular weight, and a chlorinated polyethylene prepared using the same.

Polyethylene and its chlorinated polyethylene

Provided are a hybrid supported catalyst which includes two or more kinds of transition metal compounds having the following Chemical Formulas 1 and 2, thereby preparing a polyolefin, particularly, a high-density polyethylene having a molecular structure which is optimized to improve tensile strength of a chlorinated polyolefin compound, and a method of preparing a polyolefin using the same:

Hybrid supported catalyst and method of preparing polyolefin using the same

The polyethylene according to the present disclosure has a short relaxation time and a uniform particle size, thereby preparing a chlorinated polyethylene excellent in chlorination productivity and glass transition temperature by reacting with chlorine. And, a PVC composition with improved impact strength may also be prepared by including the same.

The polyethylene according to the present disclosure reacts with chlorine to prepare a chlorinated polyethylene having excellent processability during extrusion with a high tensile strength by implementing a molecular structure having a high content of medium molecular weight, and may also prepare a CPE compound including the chlorinated polyethylene.

The polyethylene according to the present invention has narrow particle size distribution, and can minimize a change in the crystal structure, and thus, it can be reacted with chlorine to prepare chlorinated polyethylene having excellent chlorination productivity and thermal stability.

The polyethylene according to the present disclosure has a molecular structure having a narrow particle distribution and a low content of ultra-high molecular weight, so that a chlorinated polyethylene having excellent chlorination productivity and thermal stability may be prepared by reacting the polyethylene with chlorine. And, a PVC composition including the same with improved impact strength may also be prepared.

The present disclosure relates to a method for preparing a polyolefin using a supported hybrid metallocene catalyst. According to the present disclosure, a polyolefin having a narrow molecular weight distribution can be prepared very effectively by introducing a cocatalyst in an optimum content in the presence of a supported hybrid metallocene catalyst containing two or more metallocene compounds having a specific chemical structure. The polyolefin prepared according to the present disclosure exhibits excellent uniformity in chlorine distribution in polyolefin during chlorination, thereby significantly improving elongation of the chlorinated polyolefin, compatibility with PVC and impact reinforcing performance. Thus, it exhibits excellent chemical resistance, weather resistance, flame retardancy, processability and impact strength reinforcing effect, and can be suitably applied as an impact reinforcing agent for PVC pipes and window profiles.

Method for preparing polyolefin using supported hybrid metallocene catalyst

The present application relates to a method for selecting an injection-molded article and a method for manufacturing an injection-molded article. An injection-molded article having excellent crack stability can be produced using the material selected using the described selection method without having to manufacture test articles through injection molding.

Method for selecting material of injection-molded article and method for manufacturing injection-molded article

The present invention relates to a hybrid supported metallocene catalyst and a polyolefin preparation method using the same. Using the hybrid supported metallocene catalyst can not only significantly reduce the amount of wax produced when polymerizing olefin monomers, but can also enhance the stress cracking resistance of the polyolefin that is prepared.

Hybrid supported metallocene catalyst and polyolefin preparation method using same

Provided is an ethylene/alpha-olefin copolymer having excellent environmental stress crack resistance.

Ethylene/alpha-olefin copolymer having excellent environmental stress crack resistance

The present invention relates to polyethylene resin having excellent impact strength, and more specifically, to polyethylene resin exhibiting excellent impact strength and flexural strength, when prepared into a molded product.

Polyethylene resin having excellent impact strength

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Daejeon, South Korea

Bog Ki Hong