Patent ID: 8592537
Filing Date: 2013-11-26
Classification: B01J,C08F

Abstract:
1. A process which comprises polymerizing an olefin in the presence of a catalyst system obtained by contacting (A) a catalyst component obtained by reacting a Mg(OR 1 )(OR 2 ) compound, in which R 1 and R 2 are identical or different and are each a C 1 -C 10 alkyl radical and a tetravalent transition metal compound having at least a metal-halogen bond, used in amounts such that the molar ratio of metal/Mg is from 0.05 to 10; (B) an aluminum alkyl compound; and (C) a linear or branched halogenated alkyl compound which is used in such an amount to give a (C) metal ratio ranging from 0.1 to 5 wherein the contact between (A) and (C) takes place at the end of the preparation of (A).