Metallocene compounds having ligands of fluorenylic type

Details Metallocene compounds having ligands of fluorenylic type Metallocene compounds having ligands of fluorenylic type

C - Chemistry, Metallurgy

07

F

C07F 17/00 (2006.01) C07C 13/567 (2006.01) C07C 211/42 (2006.01) C07F 7/08 (2006.01) C07F 7/30 (2006.01) C07F 9/50 (2006.01) C08F 4/642 (2006.01) C08F 10/00 (2006.01) C08F 4/659 (2006.01) C08F 4/6592 (2006.01)

Patent

CA 2112598

ABSTRACT OF THE DISCLOSURE Bridged, fluorenyl-containing metallocenes are disclosed, having the formula (I) Image (I) wherein substituents R1 are, for example, hydrogen atoms or alkyl groups, M is Ti, Zr or Hf, substituents R2 are, for example, halogens or alkyl groups, the bridging group R3 is, for example, a dialkylsilandiyl divalent radical. These metallocenes are useful as catalyst components for the polymerization of olefins and, expecially, for the prep- aration of high molecular weight atactic polypropylene.

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