Bridged metallocenes for use in catalyst systems

Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing

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556 53, 526126, 526160, 526943, 502103, 502117, C07F 1700, C07F 700

Patent

active

060020334

ABSTRACT:
Bridged metallocenes of Group IVb metals provide improved results when the bridge comprises a neutral electron-donor substituent of general formula

REFERENCES:
patent: 5145819 (1992-09-01), Winter et al.
patent: 5243001 (1993-09-01), Winter et al.
patent: 5486585 (1996-01-01), Murata et al.
"Stereospecific Olefin Polymerization with Chiral Metallocene Catalysts", H.H. Brintzinger et al, Angew, Chem. Int. Ed. Engl., vol. 34, pp. 1143-1170 (1995).

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