Catalyst component for the polymerization of olefins

Details Catalyst component for the polymerization of olefins Catalyst component for the polymerization of olefins

1994-07-19

1996-09-17

Lusignan, Michael

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

502114, 502132, 502152, B01J 3100

Patent

active

055568211

ABSTRACT:
According to the present invention there is provide a catalyst capable of affording an olefin homopolymer or copolymer having a high molecular weight and a relatively wide molecular weight distribution, in high yield, using an extremely small amount of a modified organoaluminum compound (particularly methylaluminoxane).
The catalyst comprises the modified organoaluminum compound and a catalyst component comprising the following compounds (1) and (2): (1) a compound represented by the general formula R.sub.p MX.sub.4-p where M is a transition metal of Group IVa in the Periodic Table, R is cyclopentadienyl, substituted cyclopentadienyl, indenyl, substituted indenyl, or an aralkyl group having 7 to 24 carbon atoms, provided Rs may be bonded together through an alkylene groups having 2 to 8 carbon atoms and/or silylene group, X is a halogen atom, a hydrogen atom or a hydrocarbon residue having 1 to 24 carbon atoms, and p is a number satisfying the condition of 1.ltoreq.p.ltoreq.4; and (2) a compound containing carbon-fluorine bond.

REFERENCES:
patent: 3334079 (1967-08-01), Raich
patent: 4871704 (1989-10-01), Kohara et al.
patent: 5057475 (1991-10-01), Canich et al.
patent: 5252529 (1993-10-01), Ueda et al.

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