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:
Sep. 07, 2010
Filed:
Jun. 01, 2005
Paolo Vincenzi, Rovigo, IT;
Rosa Spoto, Ferrara, IT;
Paolo Vincenzi, Rovigo, IT;
Rosa Spoto, Ferrara, IT;
Basell Polidlefine Italia s.r.l., Milan, IT;
Abstract
Process for the preparation of a solid catalyst component for the polymerization of olefins, the process comprising the steps of: —continuously contacting solid particles of a MgCl.mROH adduct, wherein 0.5<m<6.0 and R is an alkyl, cicloalkyl or aryl radical having 1-12 carbon atoms, with a liquid phase comprising one or more compounds capable of reacting with the —OH groups of said adduct to obtain a slurry containing a MgCl.nROH, wherein n is lower than m; —reacting the slurry from step a) with one or more titanium compounds of formula Ti(OR)X, wherein q=3-4 and p=0-q, X is an halogen and R is an alkyl, cicloalkyl or aryl radical having 1-18 carbon atoms.