AMPHOTERIC TRANSITION METAL COMPOUNDS, METHOD OF PREPARING THEREOF, METHOD OF POLYMERIZATION OF OLEFINS, AND CATALYST COMPONENT FOR THIS METHOD Russian patent published in 1999 - IPC

FIELD: chemical industry. SUBSTANCE: described are compounds of general formula I: Ln^⊕-X-B^⊖/AR′m wherein L is the same or different and is unsubstituted or substituted cyclopentadienyl group, two L residues are bonded together by means of bridge compound Z wherein Z is SiCR³R³ or Si-(CR²-R³)XSi,X=0-10, n is 1,2,3 or 4; M is metal of group of Periodic System; X and B form together three to five linked alkyl chain, hydrogen atoms, which is substituted by C₁-C₂₀ alkyl group; A is metal of groups IIIa, IIIb of Periodic System; R′ is same or different and is perfluoridated alkyl or aryl group containing from 1 to 20 carbon atoms; m is 1,2,3,4 or 5. Also described is method of polymerization of olefins and catalysate component of this method. EFFECT: catalyst system having improved activity. 10 cl, 25 ex