PREPARATION METHOD OF POLY-OLEFIN

摘要

PURPOSE: A manufacturing method of polyolefin is provided to have wide molecular weight distribution and to have excellent physical property and processability. CONSTITUTION: A manufacturing method of polyolefin comprises a step of polymerizing olefin monomers at 130-250 °C under the presence of mixed metallocene catalyst. The mixed metallocene catalyst comprises a first metallocene catalyst comprising a compound in chemical formula 1, and a second metallocene catalyst comprising a compound selected from a group consisting of a chemical formula 2-4. The density of the manufactured polyolefin is 0.920 g/cc or less. The mixed metallocene catalyst additionally comprises one kind of a co-catalyst.