Sabic Sk Nexlene Company Pte. Ltd.

Sk Innovation Co., Ltd.

Sk Energy Co., Ltd.

Dae Ho Shin

Choon Sik Shim

Hyeong Taek Ham

Myung Ahn Ok

Jong Sok Hahn

Sung Seok Chae

Seung Bum Kwon

Yeonock Oh

Sang Bae Cheong

Tae Jin Kim

SAng Hyeon Kang

Ho Seong Lee

Priya Garg

Dongcheol Shin

Myung-Ahn Ok

Minho Jeon

Jong-Sok Hahn

Min Ho Jeon

Miji Kim

Sang-Ook Kang

Sung Kwan Kim

Jaesuk Choi

Howon Lee

Tae Eung Kim

Se Won Oh

Ji Hyun Bae

Maria Soliman

Minji Kim

Dongkyu Park

Sang Ook Kang

Seoung Woong Ryu

Mal Woo Lee

The present invention provides a transition metal compound, a catalyst composition comprising same, and a method for producing an olefin polymer using the catalyst composition. A transition metal compound having a specific functional group at a specific position, according to the present invention, has high solubility and catalytic activity, and thus a method for producing an olefin polymer by using said transition metal compound can produce an olefin polymer having excellent physical properties through a simple process.

Transition metal compound, catalyst composition comprising same, and method for producing olefin polymer using catalyst composition

Provided are a method of purifying an alpha-olefin and a composition for purifying an alpha-olefin therefor. More specifically, a method of purifying an alpha-olefin having an excellent effect of removing impurities in the alpha-olefin and a composition for purifying an alpha-olefin therefor are provided.

Method of purifying alpha-olefin and composition for purifying alpha-olefin therefor

Provided are an ethylene polymer mixture, a method of preparing the same, and a molded article using the same. More specifically, an ethylene polymer mixture in which two ethylene polymers having different densities are mixed, a method of preparing the same, and a molded article having a low haze and a low heat sealing temperature using the ethylene polymer mixture, are provided.

Ethylene polymer mixture, method of preparing the same, and molded article using the same

Provided is an ethylene copolymer having improved hygienic property. More particularly, the ethylene copolymer satisfies a correlation between a density thereof and an extract content. The ethylene copolymer having improved hygienic property can be applied in injection molding, rotation molding, or blow molding.

Ethylene copolymer with improved hygienic property and process for preparing the same

Disclosed herein is a group IV transition metal catalyst for producing an ethylene homopolymer or an ethylene-olefin copolymers, having high catalytic activity, which includes a cyclopentadiene derivative and one or more anionic ligands having an aryl group substituted with an aryl derivative at an ortho-position thereof around a transition metal, the ligands not being crosslinked to each other, a catalyst system including the group IV transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst, and a method of producing ethylene homopolymers or ethylene-olefin copolymers using the catalyst system.

Transition metal catalytic systems and methods for preparing ethylene homopolymers or copolymers of ethylene and olefins using the same

Disclosed are an ethylene polymerization process, a catalyst for use in the process, a production method employing the catalyst, and a product produced thereby. More specifically, disclosed is a process of producing an ethylene copolymer from ethylene and an alpha-olefin comonomer, in which the produced ethylene copolymer has a multimodal molecular weight distribution and excellent processability and physical properties, and thus can increase the value and productivity of products, including pipes and films. Particularly, the produced ethylene copolymer has a trimodal or higher molecular weight distribution or density distribution, and thus, when it is a linear low-density copolymer, it has an excellent effect of improving the impact strength of films, and when it is a medium-density ethylene copolymer, it can be produced into pipes, which have slow crack growth rate and can be used even at high temperature.

Ethylene copolymer having multiple pitch in molecular weight distribution and the method of preparing the same

Ethylene copolymer having multiple pitch molecular weight distribution and the method of preparing the same

The present invention relates to a bis-arylaryloxy catalyst system for the production of ethylene homopolymers or copolymers with &#x3b1;-olefins, which has high catalytic activity. More particularly, it relates to a transition metal catalyst comprising a group-IV transition metal as a central metal, a cyclopentadiene derivative around the central metal, and two aryloxide ligands substituted with aryl derivatives at the ortho-positions, the ligands not being bridged to each other, as well as a catalyst system comprising said catalyst and an aluminoxane co-catalyst or a boron compound co-catalyst, and a method for producing high-molecular-weight ethylene homopolymers or copolymers with &#x3b1;-olefins using the same.

Bis-arylaryloxy catalytic system for producing ethylene homopolymers or ethylene copolymers with alpha-olefins

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Daejeon, South Korea

Dae Ho Shin