METALLOCENE CATALYST COMPOSITIONS AND PROCESS FOR PREPARING POLYOLEFINES

摘要

PURPOSE: A metallocene catalyst composition is provided to enhance catalyst activity in the polymerization reaction of slurry and vapor olefin compound even in low metallocene metal content within a carrier and to solve problems of fouling, sheeting, and plugging. CONSTITUTION: A metallocene catalyst composition for olefin polymerization is formed by dipping group 4 transition metal compound represented by chemical formula 1: Cp'L^1ML^2_n in inorganic or organic porous carrier successively treated with ionic compounds and silane compounds having amine groups. The ionic compounds have polarity in a liquid or solid phase in a temperature range of -100 to 300 °C. The inorganic or organic porous carrier is selected from silica, alumina, magnesium chloride, magnesium oxide, mineral clay, kaolin, talcum, mica, montmorillonite, polysiloxane polymer and polystyrene, or their mixture.