The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2015
Filed:
May. 26, 2011
Fabiana Fantinel, Verona, IT;
Shahram Mihan, Bad Soden, DE;
Rainer Karer, Kaiserslautern, DE;
Volker Fraaije, Frankfurt, DE;
Fabiana Fantinel, Verona, IT;
Shahram Mihan, Bad Soden, DE;
Rainer Karer, Kaiserslautern, DE;
Volker Fraaije, Frankfurt, DE;
Basell Polyolefine GmbH, Wesseling, DE;
Abstract
The invention refers to a process for preparing a supported catalyst system for the polymerization of olefins comprising at least one active catalyst component on a support, the process comprising A) impregnating a dry porous support component with a mixture comprising at least one precatalyst, at least one cocatalyst, and a first solvent, such that the total volume of the mixture is from 0.8 to 2.0 times the total pore volume of the support component, andB) thereafter, adding a second solvent in an amount of more than 1.5 times the total pore volume of the support component. The invention refers further to a catalyst system made by this process and the use of this catalyst system for polymerization or copolymerization of olefins.