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AssigneeBasell Polyolefine GmbH
InventorsShahram Mihan, Joachim Wulff-Doring, Alexander Koppl, Wolfgang Rohde
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The invention relates to a process for preparing a supported catalyst, in particular for the polymerization and/or copolymerization of olefins, which comprises: a) preparing a hydrogel; b) milling the hydrogel to give a finely particulate hydrogel; c) producing a slurry based on the finely particulate hydrogel; d) drying the slurry comprising the finely particulate hydrogel to give the support for catalysts; e) producing the supported catalyst by applying at least one transition metal and/or at least one transition metal compound to the support for catalysts and, if appropriate, activating the applied metal and/or compound, wherein a finely particulate hydrogel in which at least 5% by volume of the particles, based on the total volume of the particles, have a particle size in the range from >0 μm to ≦3 μm; and/or at least 40% by volume of the particles, based on the total volume of the particles, have a particle size in the range from >0 μm to ≦12 μm, and/or at least 75% by volume of the particles, based on the total volume of the particles, have a particle size in the range from >0 μm to ≦35 μm, is produced in step b) and a support which can be prepared as set forth in steps a) to d) is used to produce catalysts in step e).
A process for preparing a supported catalyst which comprises:
A supported catalyst, prepared by a process comprising
A process comprising polymerizing and/or copolymerizing olefins with a supported catalyst prepared by a process comprising:
An olefin polymer obtained from polymerizing and/or copolymerizing olefins with a supported catalyst prepared by a process comprising:
A fiber, film or molding comprising polymers obtained from polymerizing and/or copolymerizing olefins with a supported catalyst prepared by a process comprising:
Dependencies are inferred from the claim text.