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Jurgen Rohrmann, Volker Dolle, Andreas Winter, Frank Kuber: Metallocenes having benzo-fused indenyl derivatives as ligands, processes for their preparation and their use as catalysts. Hoechst, Connolly and Hutz, October 3, 1995: US05455366 (72 worldwide citation)

Metallocenes having benzo-fused indenyl derivatives as ligands, processes for their preparation and their use as catalysts A very effective catalyst system for olefin polymerization comprises a cocatalyst, preferably an aluminoxane, and a metallocene of the formula I ##STR1## in which, preferably, M ...


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Andreas Winter, Jurgen Rohrmann, Volker Dolle, Frank Kuber: Process for the preparation of a high molecular weight olefin polymer. Hoechst Aktiengellschaft, Connolly and Hutz, July 12, 1994: US05328969 (66 worldwide citation)

A very active catalyst system for olefin polymerization comprises a cocatalyst, preferably an aluminoxane, and a metallocene of the formula I ##STR1## in which, preferably, M.sup.1 is Zr or Hf, R.sup.1 and R.sup.2 are alkyl or halogen, R.sup.3 is hydrogen, R.sup.4 to R.sup.6 are alkyl or aryl, --(CR ...


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Andreas Winter, Martin Antberg, Bernd Bachmann, Volker Dolle, Frank Kuber, Jurgen Rohrmann, Walter Spaleck: Process for the preparation of polyolefins. Hoechst Aktiengesellschaft, John M Genova, September 30, 1997: US05672668 (52 worldwide citation)

A process for the preparation of an olefin polymer by polymerization or copolymerization of an olefin of the formula R.sup.a --CH.dbd.CH--R.sup.b, in which R.sup.a and R.sup.b are identical or different and are a hydrogen atom or a hydrocarbon radical having 1 to 14 carbon atoms, or R.sup.a and R.su ...


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Andreas Winter, Frank Kuber, Michael Aulbach, Bernd Bachmann, Robert Klein, Klaus Kuhlein, Walter Spaleck, Christian Kohlpaintner: Metallocene compound. Hoechst Aktiengesellschaft, Connolly & Hutz, July 2, 1996: US05532396 (51 worldwide citation)

The invention relates to a metallocene compound of the formula I ##STR1## where the two indenyl ligands have substitution patterns different from one another. The metallocene compound can be used as catalyst component for olefin polymerization.


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Michael Aulbach, Bernd Bachmann, Gerhard Erker, Christian Psiorz, Frank Kuber, Frank Osan, Thomas Weller, Hans Friedrich Herrmann: Process for the preparation of polyolefins. Hoechst, Connolly & Hutz, October 15, 1996: US05565534 (46 worldwide citation)

The present invention relates to a process for the preparation of a polyolefin by polymerization of at least one olefin in the presence of a stereorigid metallocene compound containing, as ligands, at least two substituted or unsubstituted cyclopentadienyl groups bonded to one another via a monocycl ...


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Cornelia Fritze, Frank Kuber, Hans Bohnen: Supported catalyst system, processes for its preparation, and its use for the polymerization of olefins. Targor, Connolly Bove Lodge & Hutz, September 26, 2000: US06124231 (43 worldwide citation)

The present invention relates to a supported composition, to processes for its preparation and to its use for polymerizing olefins. The supported catalyst composition comprises at least one transition metal compound of subgroup 3, 4 or 5 of the ##STR1## Periodic Table of the Elements and at least on ...


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Andreas Winter, Jurgen Rohrmann, Volker Dolle, Frank Kuber: Process for the preparation of a high molecular weight olefin polymer. Hoechst Aktiengesellschaft, Connolly & Hutz, December 20, 1994: US05374752 (42 worldwide citation)

A very active catalyst system for olefin polymerization comprises a cocatalyst, preferably an aluminoxane, and a metallocene of the formula I ##STR1## in which, preferably, M.sup.1 is Zr or Hf, R.sup.1 and R.sup.2 are alkyl or halogen, R.sup.3 is hydrogen, R.sup.4 to R.sup.6 and alkyl or aryl, --(CR ...