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:
Nov. 18, 2008
Filed:
Aug. 14, 2003
Grant Berent Jacobsen, Bouc-Bel-Air, FR;
Brian Stephen Kimberley, Bouche du Rhone, FR;
Sergio Mastroianni, Martigues, FR;
Michael John Taylor, Middlesex, GB;
Grant Berent Jacobsen, Bouc-Bel-Air, FR;
Brian Stephen Kimberley, Bouche du Rhone, FR;
Sergio Mastroianni, Martigues, FR;
Michael John Taylor, Middlesex, GB;
Ineos Europe Limited, Hampshire, GB;
Abstract
An improved method for the preparation of a supported polymerisation catalyst system comprises the combination of (i) a porous support (ii) a polymerisable monomer, (iii) a polymerisation catalyst, and (iv) a cocatalyst, characterised in that the polymerisable monomer is added to the porous support before addition of one or both of the polymerisation catalyst and the cocatalyst. The preferred polymerisation catalyst is a metallocene complex and the preferred porous support is silica. The resultant supported catalysts are stable over long periods of time. The supported catalyst are particularly suitable for use in the gas phase.