Abstract: Activating supports are prepared by (a) combining (i) fluorine-containing compounds having a reactive group and (ii) an organometallic compound, (b) contacting a porous mineral oxide support material with the mixture from step (a), (c) heating the functionalized support from step (b) under an inert gas and then under an atmosphere comprising oxygen, and (d) recovering the activating support. The fluorine-containing compounds may have the formula R(Fn)-X wherein R is hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl with up to 20 non-hydrogen atoms, n is 1-41, X is OH, SH or NR?2, R? is hydrogen or hydrocarbyl. The activating supports are useful in combination with transition metal catalysts for polymerization of olefins, e.g., with metallocene complexes. Preparation of the activating supports is easier and more economic than prior methods and provides for supported polymerization catalyst systems having excellent activities.

Abstract: Activating supports may be suitably prepared by (a) combining (i) fluorine-containing compounds having a reactive group and (ii) an organometallic compound, (b) addition of a porous mineral oxide support material, (c) heating the functionalized support from step (b) under an inert gas and then under an atmosphere comprising oxygen, and (d) recovering the activating support. The preferred fluorine-containing compounds have the formula: R(Fn)-X wherein R is hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl with up to 20 non-hydrogen atoms, n is 1-41, X is OH, SH or NR?2, R? is hydrogen or hydrocarbyl. The activating supports are suitable used in combination with transition metal catalysts for the polymerization of olefins. The supports are most preferable used in combination with metallocene complexes.

Abstract: Process for polymerizing alpha-olefins, in which at least one alpha-olefin is placed in contact, under polymerizing conditions, with a catalytic system comprising