Patent ID: 7307036
Filing Date: 2007-12-11
Classification: C08F,Y02P

Abstract:
1. A catalyst component useful for the co-polymerization of ethylene and an alpha-olefin, wherein the catalyst component is prepared by: (i) contacting a halogen-substituted silane with an one or more compounds selected from the group of compounds consisting of alkoxysilanes, silanols, and hydropolysiloxanes; wherein the halogen-substituted silane has formula (I) R (ii) treating the mixture of (i) with a transition metal compound having formula (IV) M(OR (iii) contacting the mixture of (ii) with a support prepared by reacting metallic magnesium with an alkyl halide or an aromatic halide and with a one or more compounds selected from the group consisting of silanols of formula (III) and hydropolysiloxanes of formula (V).