Novolen Technology Holdings, C.v.

Lummus Technology Inc.

Joerg Schottek

Andreas Winter

Thorsten Sell

Nicola Stefanie Paczkowski

Thorsten c/o Lummus Novolen Technology Gmbh Sell

A process for the preparation of a catalyst system includes the steps of combining a Lewis base, an organic compound having at least one functional group containing active hydrogen, and an organometallic component with a particulate support material to provide an intermediate composition, and then combining the intermediate composition with one or more metallocene compound. The catalyst system is advantageously used for olefin polymerization.

Catalyst composition for olefin polymerization

A catalyst system includes a metallocene compound having the formula RLLMRRwherein Ris a bridge between ligands Land Land Mis a metal of Group IVB of the Periodic Table such as titanium, zirconium and hafnium and Rand Rcan be hydrogen or aliphatic or aromatic groups. Bridge Rcan include silicon, germanium or tin. The metallocene compound of the invention as synthesized has a racemic to meso isomer ratio of greater than 5 to 1, thereby precluding the need for subsequent separation of the meso isomer.

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Frankfurt-am-Main, Germany

Joerg Schottek