Lg Chem, Ltd

Ra Yun Choi

Kyung Seop Noh

Sang Jin Jeon

Byung Seok Kim

Ji Ho Choi

Won Hee Kim

Hee Kwang Park

Hye Kyung Lee

Sang Eun An

Churl Young Park

In Sun Lee

Sang Hoon Lee

Jin Hyun Park

Jae Youp Cheong

The present invention relates to a polypropylene having excellent stiffness and achieving energy reduction during foaming.

High-stiffness and energy-reducing polypropylene for foaming

The present invention provides a transition metal compound, a catalyst composition comprising the same, and a method for producing an olefin polymer using the catalyst composition, the transition metal compound being capable of exhibiting high activity in olefin polymerization reaction, and also being capable of easily controlling the physical properties of an olefin polymer. When the transition metal compound is used, it is possible to provide an olefin polymer having an excellent energy-saving effect at the time of processing or molding.

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

The present invention relates to a metallocene compound having novel structure which can provide various selectivity and activity to polyolefin copolymers, a preparation method thereof, and a preparation method of polyolefin using the metallocene compound.

Metallocene catalyst for preparing a high molecular weight polyolefin and a preparation method thereof

The present invention relates to a preparation method of a polypropylene and a polypropylene obtained therefrom. More specifically, it relates to a method of preparing a polypropylene by using a catalyst that includes a novel metallocene compound having an excellent polymerization activity, and a polypropylene obtained by the method. According to the present invention, since the polypropylene is prepared by polymerizing propylene by using a novel metallocene compound having an excellent polymerization activity and hydrogen reactivity, the properties of the polypropylene can be easily controlled and the polypropylene having excellent mechanical properties can be obtained.

Preparation method of a polypropylene and a polypropylene obtained therefrom

The disclosed is a preparation method of a propylene-1-butene copolymer by using a catalyst that includes a novel metallocene compound having excellent copolymerization activity.

Preparation method of a propylene-1-butene copolymer and a propylene-1-butene copolymer obtained therefrom

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Daejeon, South Korea

Ra Yun Choi