METHOD OF POLYMERIZATION OF ALPHA-OLEFIN, AND CATALYST FOR PREPARING ALPHA-OLEFIN Russian patent published in 2001 - IPC

FIELD: chemical industry. SUBSTANCE: described is method of preparing polyolefin which comprises polymerization of alpha-olefin in the presence of catalyst system containing cocatalyst and catalyst. Also described is catalyst system in which azametallocene catalyst has at least one ligand containing pyrrolyl group bonded with transition metal which group contains nitrogen-containing 5-membered resonance ring. EFFECT: increased catalytic activity of nitrogen-containing polymerization catalysts at high temperatures to prepare polymers with narrow molecular weight destribution. 24 cl, 26 ex