Lerner, David, Littenberg, Krumholz & Mentlik, LLP
Method for preparing supported hybrid metallocene catalyst
The present disclosure relates to a method for preparing a supported hybrid metallocene catalyst, and the catalyst is prepared by supporting a first metallocene compound, supporting a cocatalyst by a separate-input method in which primarily adding a part at 100° C. to 150° C. and secondarily adding the rest at −5° C. to 40° C., and then supporting a second metallocene compound, thereby improving a supporting rate of the cocatalyst in the supported catalyst and maintaining high catalytic activity. Therefore, the present disclosure can effectively prepare a polyolefin with improved processability which exhibits increased molecular weight distribution while having high morphology (reduced fine powder), high bulk density and improved settling efficiency.
LG Chem, Ltd.
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Ki Soo Hyun Jee Seungmi Poeun
Lee Kwon Lee Kim