Catalysts, method of preparation and polymerization processes th

Details Catalysts, method of preparation and polymerization processes th Catalysts, method of preparation and polymerization processes th

1985-02-21

1986-04-15

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...

502109, 502111, 502112, 502113, 502125, 502132, 526114, 526125, C08F 464

Patent

active

045828164

ABSTRACT:
Method for the production of milled supports useful for the preparation of mono-1-olefin polymerization catalysts is provided by comminuting Mg(O)mX.sub.2 -m or Mn(O)mX.sub.2 -m, and high density ethylene polymer, optionally in the presence of an aromatic phenol and/or an aluminum halide to produce a composite catalyst support prior to further comminution with a tetravalent titanium halide to produce a first catalyst component and finally admixture of the first catalyst component with an organoaluminum catalyst compound. Polymerization process employing the novel catalyst system thus produced is also provided.

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