Catalyst systems for producing polyolefins having a broad molecu

Details Catalyst systems for producing polyolefins having a broad molecu Catalyst systems for producing polyolefins having a broad molecu

1988-12-02

1990-12-04

Garvin, Patrick P.

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

Catalyst or precursor therefor

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

502117, 526114, C08F 4646

Patent

active

049754033

ABSTRACT:
The invention provides catalyst systems for use in the polymerization of olefins to produce a polymer product having a broad molecular weight distribution. The catalyst system includes at least two different chiral, stereo-rigid metallocene catalysts of the formula R"(C.sub.5 (R').sub.4).sub.2 MeQp and an aluminum compound, preferably an alumoxane. These catalyst systems are especially useful in the polymerization of propylene.

REFERENCES:
patent: 4411821 (1983-10-01), Howard
patent: 4497906 (1985-02-01), Hanji et al.
patent: 4522982 (1985-06-01), Ewen
patent: 4530914 (1985-07-01), Ewen et al.
patent: 4542199 (1985-09-01), Kaminsky et al.
patent: 4658078 (1987-04-01), Slaugh et al.
patent: 4794096 (1988-12-01), Ewen
Chem. Ab., vol. 106, 138888j (1987).
Ewen, J.A.C.S., vol. 106, No. 21, pp. 6355-6464 (1954).
John A. Ewen, "Ligand Effects on Metallocene Catalyzed Ziegler-Natta Polymerizations", published by Elsevier Publishing Co., Apr. 25, 1986.
Basel, "Olefin Polymerization with Highly Active Soluble Zirconium Compounds Using Aluminoxane as Co-Catalyst", Die Makromolekulare Chemie/Macromolecular Symposia, Jun. 3, 1986, Switzerland, pp. 377-387.
Kaminsky, "Stereoselektive Polymerization von Olefinen mit Homogenen, Chiralen Ziegler-Natta-Katalysatoren", 145/146, 1986, pp. 149-160.

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