Lg Chem, Ltd

Donghyeon Gwon

Byung Seok Kim

Seok Hwan Kim

Seyoung Kim

Insun Lee

Heekwang Park

Sangjin Jeon

Jung Won Lee

Yoonchul Jung

Minyoung Kang

Daesik Hong

Jinyoung Lee

Jihwa Ye

Jeongkyu Lee

SangHoon Lee

Sangeun An

Chaeeun Lee

Seok Bin Hong

Disclosed is a hybrid supported metallocene catalyst exhibiting high activity in propylene polymerization and useful for preparing a polypropylene having high melt strength by introducing long chain branches into the polypropylene molecule, and to a method for preparing a polypropylene using the same.

Hybrid supported metallocene catalyst and method for preparing polypropylene using the same

This invention relates to polyolefin. More specifically, this invention relates to polyolefin that may exhibit improved mechanical properties such as excellent drop impact strength.

Polyolefin

Provided are a novel transition metal compound of the following Chemical Formula 1 that exhibits excellent catalytic activity, allows formation of a macromonomer which is a polymer in which a double bond is formed at the end of a chain, and improves a melt strength characteristic when used in polymerizing polypropylene, and a method of preparing a polypropylene using the same. wherein A, M, Rto R, Xand X, Yand Yand m are described herein.

Transition metal compound and method of preparing polypropylene using the same

The hybrid supported metallocene catalyst according to the present disclosure comprises at least one first metallocene compound selected from compounds represented by the following Chemical Formula 1; and at least one second metallocene compound selected from compounds represented by the following Chemical Formula 3, and exhibits high activity in propylene polymerization and is useful for preparing polypropylene having high melt tension through the introduction of long chain branches (LCB) into polypropylene molecules, and a method for preparing a polypropylene using the same, wherein all the variables are described herein.

The present disclosure relates to a novel transition metal compound represented by the following Chemical Formula 1, which exhibits excellent catalytic activity for propylene polymerization, and is useful in the preparation of a polypropylene having a narrow molecular weight distribution and a high melting point, a catalyst composition including the same, and a method for preparing a polypropylene using the same,

Transition metal compound and catalyst composition comprising the same

The present disclosure relates to a novel transition metal compound of the following Chemical Formula 1, which exhibits high hydrogen reactivity with excellent catalytic activity for propylene polymerization, and is useful in the preparation of a polypropylene having a narrow molecular weight distribution and a low melting point, a catalyst composition including the same, and a method for preparing a polypropylene using the same,

Transition metal compound, catalyst composition and method for preparing polypropylene using the same

The present disclosure relates to a propylene-ethylene random copolymer for high transparency injection that has a low total volatile organic compound emission (TVOC), excellent processability, and maximizing ethylene content.

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Daejeon, South Korea

Donghyeon Gwon