Supported catalytic system for the production of ethylene propylene copolymers
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United States of America Patent
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Jun 11, 2002
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N/A
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Nov 14, 1995
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Dec 15, 1994
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Abstract
Catalytic component for the polymerization of ethylene with propylene prepared by: a) impregnation of an inert support with a solution of a compound of Vanadium having an oxidation state of between 3 and 5; b) subsequent treatment with a solution of a compound having general formula (I) R.sub.n AlX.sub.m wherein R is a C.sub.1 -C.sub.20 alkyl radical, X is a halogen, n+m=3, and m is an integer between 0 and 2, the molar ratio between Aluminium in step (b) and Vanadium in step (a) being from 1/1 to 6/1.
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