Sk Innovation Co., Ltd.

Sk Global Chemical Co., Ltd.

Sk Energy Co., Ltd.

Sung-Kwan Kim

SAng Hyeon Kang

Myung Ahn Ok

Jong Sok Hahn

Tae Woo Woo

Sang-Ook Kang

Tae-Jin Kim

Mal-Ou Lee

Sung-bo Ko

So-Young Park

Tack-Kyu Han

Ju-Eun Jung

Yong-Rak Moon

The present invention relates to an EPDM resin blend composition, which includes a first EPDM resin matrix and a second EPDM resin, wherein a ratio (M/M) of a weight average molecular weight of the first EPDM resin matrix to a weight average molecular weight of the second EPDM resin ranges from 0.75 to 1.33, and the second EPDM resin has a narrower molecular weight distribution (M/M) than the first EPDM resin matrix, and to a method for preparing the same.

Ethylene-alpha olefin-diene resin blend composition and method for preparing the same

This invention relates to a chromium complex compound for selective ethylene oligomerization including a chiral ligand, and to a method of selectively preparing 1-hexene or 1-octene from ethylene using the same.

Highly active and selective ethylene oligomerization catalyst and method of preparing hexene or octene using the same

The present invention relates to an arylphenoxy catalyst system producing an ethylene homopolymer or copolymers of ethylene and &#x3b1;-olefins, and a method of producing an ethylene homopolymer or copolymers of ethylene and &#x3b1;-olefins having a high molecular weight under a high temperature solution polymerization condition using the same. The catalyst system includes a group IV arylphenoxy-based transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst. In the transition metal catalyst, a cyclopentadiene derivative and arylphenoxide as fixed ligands are located around the group IV transition metal, arylphenoxide is substituted with at least one aryl derivative and is located at the ortho position thereof, and the ligands are not crosslinked to each other. The catalyst includes an environmentally-friendly raw material, synthesis of the catalyst is economical, and thermal stability of the catalyst is excellent. It is useful for producing an ethylene homopolymer or copolymers of ethylene and &#x3b1;-olefins having various physical properties in commercial polymerization processes.

Arylphenoxy catalyst system for producing ethylene homopolymer or copolymers of ethylene and &#x3b1;-olefins

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Gyeongsangnam-do, South Korea

Sung-Kwan Kim