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:
Oct. 28, 2008
Filed:
Dec. 03, 2003
Grant Berent Jacobsen, Bouc-Bel-Air, FR;
Brian Stephen Kimberley, Bouche du Rhone, FR;
Claudine Viviane Lalanne-magne, Saint Mitre les Remparts, FR;
Sergio Mastroianni, Martigues, FR;
Grant Berent Jacobsen, Bouc-Bel-Air, FR;
Brian Stephen Kimberley, Bouche du Rhone, FR;
Claudine Viviane Lalanne-Magne, Saint Mitre les Remparts, FR;
Sergio Mastroianni, Martigues, FR;
Innovene Europe Limited, Middlesex, GB;
Abstract
Supported catalyst systems are provided comprising (a) a transition metal compound, (b) an activator comprising (iii) an aluminoxane or (iv) a Group lilA metal or metalloid compound, and (c) a support material comprising an inorganic metal oxide, inorganic metal halide or polymeric material or mixtures thereof characterised in that the support material has been pretreated with a source of a transition metal atom. The preferred transition metal compounds are metallocenes and the source of the transition metal atom is typically a ferrous or cupric metal salt. The supported catalyst systems show improved activity and also may reduce fouling in gas phase fluidised bed processes.