CATALYST FOR PROPYLENE POLYMERIZATION Russian patent published in 1994 - IPC

FIELD: catalysts for polymerization. SUBSTANCE: catalyst has cyclopentadienyl-compound of the general formula 1 (R¹), where M - zirconium or germanium; Y - silicon or germanium; R¹-methyl or tert. -butyl. Position R² in cyclopentadienyl-ring and its type correspond configuration, in which any symmetry plane is absent involving M; R³ - methyl or cyclotetramethylene; n and q - are whole numbers 0-4. When n= q= O or n= q= 4, alumineoxane of the general formula 11 () or 111 () is excluded, where - methyl, m= 13.3, and at molar ratio aluminium: transient metal = 5000-20000. EFFECT: enhanced quality of catalyst.