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. 22, 2009
Filed:
May. 07, 2004
Giampiero Morini, Padova, IT;
Tiziano Dall'occo, Ferrara, IT;
Fabrizio Piemontesi, Ferrara, IT;
Rosa Spoto, Ferrara, IT;
Paolo Vincenzi, Ficarolo, IT;
Gianni Vitale, Ferrara, IT;
Giampiero Morini, Padova, IT;
Tiziano Dall'Occo, Ferrara, IT;
Fabrizio Piemontesi, Ferrara, IT;
Rosa Spoto, Ferrara, IT;
Paolo Vincenzi, Ficarolo, IT;
Gianni Vitale, Ferrara, IT;
Basell Poliolefine Italia s.r.l., Milan, IT;
Abstract
A process for preparing a catalyst component, comprising a Mg compound a Ti compound and an electron donor compound (ED) selected from alcohol, glycols, esters, ketones, amines, amides, nitrites, alkoxysilanes and aliphatic ethers as essential compounds, comprising two or more steps of reaction involving the use of at least one of said essential compounds as fresh reactant alone or in a mixture in which it constitutes the main component, said process being characterized by the fact that in the last of said one or more reaction steps the essential compound used as a fresh reactant is the ED compound.