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:
Jun. 20, 2017
Filed:
Oct. 21, 2014
Basell Poliolefine Italia S.r.l.;
Benedetta Gaddi, Ferrara, IT;
Marco Bocchino, Ferrara, IT;
Gianni Collina, Ferrara, IT;
Ofelia Fusco, Ferrara, IT;
Simona Guidotti, Ferrara, IT;
Antonio Mazzucco, Ferrara, IT;
Roberto Pantaleoni, Ferrara, IT;
Fabrizio Piemontesi, Ferrara, IT;
Basell Poliolefin Italia S.r.l., Milan, IT;
Abstract
The present disclosure relates to a process for the preparation of a porous propylene carried out in the presence of a catalyst system comprising (a) a Ziegler-Natta catalyst containing at least two electron donor compounds, one of which is present in an amount from 50 to 90% by mol with respect to the total amount of donors and selected from succinates, and the other being selected from 1,3 diethers, (b) an aluminum alkyl and comprising the following steps: