Lg Chem, Ltd

Hyuck Ju Kwon

Ki Soo Lee

Eun Kyoung Song

Yi Young Choi

Dae Sik Hong

Kyung Jin Cho

Joong Soo Kim

Yong Ho Lee

Heon Yong Kwon

Young Suk You

Ye Jin Lee

Sung Min Lee

Se Young Kim

Yoon Ki Hong

Eun Young Shin

Min Seok Cho

Woo Ri Kim

Bog Ki Hong

Sun Mi Kim

Daesik Hong

Joongsoo Kim

Jinyoung Kwak

Jongsang Park

Nak-Kyu Song

Si Yong Kim

Provided is an ethylene/1-butene copolymer having excellent processability and stress cracking resistance. The ethylene/1-butene copolymer according to the present invention may be applied to a high-pressure resistant heating pipe, a PE-RT pipe, a large diameter pipe, etc.

Ethylene/1-butene copolymer having excellent processability

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

The present invention relates to a method for predicting the physical properties of polymers. More specifically, the present invention relates to a method for predicting the processability of polymers using a molecular weight distribution curve.

Method for predicting physical properties of polymers

The present invention relates to a method for predicting the physical properties of polymers. More specifically, the present invention relates to a method for predicting long-term stability of polymers using a molecular weight distribution curve.

A method of preparing a supported metallocene catalyst capable of more effectively preparing a polyolefin which may be preferably used for blow molding, etc., because its molecular weight distribution is such that polymer elasticity is increased to improve swell, is provided.

Method of preparing supported metallocene catalyst

The present invention relates to a method for preparing polyolefin that can easily and effectively prepare polyolefin having high molecular weight and various molecular weight distributions, which was difficult to prepare using the existing metallocene catalyst, and polyolefin prepared thereby. The method for preparing polyolefin comprises the step of polymerizing olefin monomers, in the presence of a metallocene supported catalyst wherein a metallocene compound having a specific chemical structure is supported in a carrier, and hydrogen gas.

Method for preparing polyolefin and polyolefin prepared thereby

The present invention relates to an ethylene/1-hexene or ethylene/1-butene copolymer having excellent processibility. The ethylene/1-hexene or ethylene/1-butene copolymer according to the present invention has high molecular weight and wide molecular weight distribution, and thus excellent processibility, and has excellent environmental stress crack resistance, and thus, may be applied for a high inner pressure heating pipe, a mining pipe, or a large-diameter pipe, and the like.

Ethylene/1-hexene or ethylene/1-butene copolymer having excellent processibility and environmetal stress crack resistance

The present invention relates to a novel metallocene compound, a catalyst composition including the same, and a method of preparing an olefinic polymer by using the same. The metallocene compound according to the present invention and the catalyst composition comprising the same can be used for producing olefinic polymers, have outstanding polymerizing ability, and can produce olefinic polymers of ultra high molecular weight. In particular, when the metallocene compound according to the present invention is employed, an olefinic polymer of ultra high molecular weight can be obtained because it shows high polymerization activity even when it is supported on a carrier and maintains high activity even in the presence of hydrogen because of its low hydrogen reactivity.

Metallocene compound, a catalyst composition comprising the same, and a method of preparing an olefinic polymer by using the same

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Daejeon, South Korea

Hyuck Ju Kwon