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Bernhard Rieger, Hans Brintzinger, Werner Roell, Annette Reinmuth, Elke Barsties: Soluble catalyst systems for the polymerization of C.sub.2 - to C.sub.10 -alk-l-enes. BASF Aktiengesellschaft, Keil & Weinkauf, July 21, 1992: US05132262 (123 worldwide citation)

The present invention relates to soluble catalyst systems for the polymerization of C.sub.2 - to C.sub.10 -alk-l-enes, containing, as active constituents,


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Franz Langhauser, David Fischer, J urgen Kerth, G unther Schweier, Hans Herbert Brintzinger, Elke Barsties, Werner Roell: Metallocene complexes having heterofunctional groups in the cyclopentadienyl system. BASF Aktiengesellschaft, Keil & Weinkauf, December 17, 1996: US05585509 (37 worldwide citation)

Metallocene complexes of the general formula I ##STR1## where the substituents Y, M, x, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 are as described in the disclosure, and ligand systems of the general formula II ##STR2## as intermediates.


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Franz Langhauser, David Fischer, Jurgen Kerth, Gunther Schweier, Hans Herbert Brintzinger, Elke Barsties, Werner Roell: Polymerization process using metallocene complexes in the catalyst system. BASF Aktiengesellschaft, Keil & Weinkauf, May 26, 1998: US05756608 (30 worldwide citation)

A process for polymerizing C.sub.2 -C.sub.10 -alk-1-enes in the presence of a metallocene complex of the formula I ##STR1## where the substituent groups have the meanings described in the specification.


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Franz Langhauser, Jurgen Kerth, Gunther Schweier, Hans Herbert Brintzinger, Stefan Mansel, Werner Roell, Robin Kirsten: Preparation of polymers of C.sub.2 -C.sub.10 -alk-1-enes using racemic metal-locene complexes as catalysts. BASF Aktiengesellschaft, Keil & Weinkauf, February 13, 1996: US05491205 (16 worldwide citation)

Polymers of C.sub.2 -C.sub.10 -alk-1-enes are prepared at from 0.5 to 3000 bar and from -50.degree. to 300.degree. C. using a catalyst system by a process in which the catalyst system used is one which contains, as active components:


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Walter Boll, Friedrich Hohmann, Werner Roell: Thermally insulated metal surface protected against metal dusting corrosion. Metallgesellschaft Aktiengesellschaft, Herbert Dubno, August 8, 2000: US06099922 (2 worldwide citation)

The metal surface protected against metal-dusting corrosion has an insulating layer of a gas-permeable, thermally insulating material. The side of the thermal insulating layer that is colder during operation is in direct vicinity of the metal surface, and the side of the insulating layer that is hot ...