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. 06, 2009
Filed:
Mar. 01, 2005
Olivier Lavastre, Gahard, FR;
Fabien Bonnette, Bressuire, FR;
Abbas Razavi, Mons, BE;
Total Petrochemicals Research Feluy, Feluy, BE;
Abstract
The present invention discloses a method for preparing an heterogeniseded catalyst component comprising the steps of: a) providing a halogenated precursor component of formula (I) —X—[—CH]—CHb) reacting the halogenated precursor with an ionic liquid precursor in a solvent to prepare an ionic liquid; ILXc) optionally, reacting the intermediate ILXwith a salt CA, wherein Cis a cation that can be selected from K, Na, NH4, and Ais an anion that can be selected from PF, SbF, BF, (CF—SO)NCIO—, CFSO, NO— or CFCO. d) using the ionic liquid prepared in step b) to heterogenise a metallocene component of formula (II) R″(CpR)(Cp'R)MQwherein Cp and C′p are independently selected from substituted or unsubstituted cyclopentadienyl groups M is a metal selected from Group 4 of the Periodic Table, R″ is a structural bridge imparting stereorigidity between Cp and Cp′ and Q is a halogen or an alkyl having from 1 to 12 carbon atoms; e) heterogenising the ionic liquid/metal system by addition of an apolar solvent inducing the precipitation reaction; f) retrieving a metallocene catalyst component heterogenised by an ionic liquid. It also discloses an active catalyst system hetero genised by an ionic liquid and its use in the polymerisation of olefins.