Basell Polyolefine Gmbh

Novolen Technology Holdings, C.v.

Lummus Technology Inc.

Nicola Stefanie Paczkowski

Andreas Winter

Wolfgang Bidell

Thorsten Sell

Joerg Schottek

Volker Fraaije

Joachim Wulff-Döring

Markus Oberhoff

Shahram Mihan

Franz Langhauser

David Fischer

Jörg Schottek

Carsten Bingel

Roland Kratzer

Horst Weiss

Markus Schopf

Ralph-Dieter Maier

Joachim Rösch

Jürgen Suhm

Wolf Spaether

Carsten Süling

Horst Weiβ

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 process for the polymerization of olefins, in particular a process for the copolymerization of propylene with further olefins, is carried out in the presence of highly active catalyst systems comprising specifically selected metallocenes, in particular ones which bear different substituents in position 2 and position 4 on an indenyl ligand. Novel polypropylene copolymers can be obtained by this process.

Transition metal compound, ligand system, catalyst system and the use of the latter for polymerisation and copolymerisation of olefins

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.

Metallocene ligands, metallocene compounds and metallocene catalysts, their synthesis and their use for the polymerization of olefins

A process for the preparation of a catalyst system includes the steps of combining a support material with a first composition which includes at least one aluminoxane in a first solvent to provide an aluminoxane loaded support; and, contacting the aluminoxane loaded support with a second composition which includes at least one metallocene compound, a second solvent, and a cocatalyst, wherein the cocatalyst includes a second portion of the at least one aluminoxane alone or in combination with an ionic compound and/or a Lewis acid.

Metallocene catalysts, their synthesis and their use for the polymerization of olefins

Catalyst system for olefin polymerization comprising

Catalyst system for carrying out olefin polymerization comprising a calcined hydro-talcite serving as a supporting material

A catalyst solid for olefin polymerization comprising

Method for production of a solid catalyst for olefin polymerization

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Loveland, OH, United States of America

Nicola Stefanie Paczkowski