Metallocenes, process for their preparation and their use as cat

Details Metallocenes, process for their preparation and their use as cat Metallocenes, process for their preparation and their use as cat

1994-11-23

1996-12-17

Nazario-Gonzalez, Porfirio

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556 12, 556 43, 556 53, 556 56, 556 58, 556 59, 526943, 502152, C07F 1700, C07F 700, C07F 900, C07F 1100

Patent

active

055855083

ABSTRACT:
The present invention relates to a polynuclear metallocene compound of the formula I ##STR1## a process for their preparation and their use as a catalyst for olefin polymerization.

REFERENCES:
patent: 4769510 (1988-09-01), Kaminsky et al.
patent: 5243001 (1993-09-01), Winter et al.
patent: 5278264 (1994-01-01), Spaleck et al.
patent: 5328969 (1994-07-01), Winter et al.
patent: 5359102 (1994-10-01), Inoue et al.
Chemical Abstracts, vol. 117, No. 17, Abstract No. 171698x, "Preparation of Transition Metal Compounds as Catalysts for Polymerization", Oct. 1992.
Chemical Abstracts, vol. 117, No. 12, Abstract No. 112257e, "Preparation of Syndiotactic Polyolefins", Sep., 1992.
Chemical Abstracts, vol. 117, No. 10, Abstract No. 91047u, "Syndiotactic Polypropylene Prepared with Metallocene Catalysts", Sep., 1992.
J. Am. Chem. Soc. 1987, 109, 6544-6545.

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