POLYMERIZATION METHOD Russian patent published in 2004 - IPC

FIELD: chemistry of organometallic compounds, catalysts.

SUBSTANCE: invention relates to a catalytic composition and a method for polymerization including the combination of olefin with this catalytic composition in gaseous or suspension phase of reactor. The composition comprises mineral oil suspension, powder-like filling agent, compound of metallocene catalyst and catalytic compound corresponding to the formula:

wherein M means metal atom of 4, 5 or 6 group of Periodic system of elements; each X means independently anionic removing group; n means the oxidation state of M; m means formal charge of ligand; Y means element atom of the group 15; Z means element atom of the group 15; L means element atom of the group 15; R¹ and R² each means independently hydrocarbon (C₁-C₂₀)-group, heteroatom-containing group wherein silicon, germanium, tin, lead or phosphorus represents a heteroatom; R¹ and R² can be bound; R³ is absent or means hydrogen atom, group comprising element atom of the group 14, halogen atom or heteroatom-containing group; R⁴ and R⁵ each means independently alkyl group, aryl group, substituted aryl group, cyclic alkyl group, substituted cyclic alkyl group or polycyclic system, substituted cyclic alkyl group or polycyclic system, and each R⁶ and R⁷ is absent independently or means hydrogen atom, alkyl group, halogen atom, heteroatom, hydrocarbyl group or heteroatom-containing group.

EFFECT: improved method for polymerization.

23 cl, 3 tbl, 1 dwg, 28 ex