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:
May. 16, 2017
Filed:
Mar. 03, 2014
Basell Poliolefine Italia S.r.l., Milan, IT;
Monica Galvan, Ferrara, IT;
Andreas Neumann, Ferrara, IT;
Tiziana Caputo, Ferrara, IT;
Stefano Squarzoni, Ferrara, IT;
Antonio Mazzucco, Ferrara, IT;
Ofelia Fusco, Ferrara, IT;
Benedetta Gaddi, Ferrara, IT;
Gianni Collina, Ferrara, IT;
Gisella Biondini, Ferrara, IT;
Claudio Cavalieri, Ferrara, IT;
Roberto Pantaleoni, Ferrara, IT;
Basell Poliolefine Italia S.r.l., Milan, IT;
Abstract
Propylene terpolymers are prepared by polymerizing propylene, ethylene and an alpha-olefin selected from the group of C-Calpha-olefins in the presence of a catalyst system obtained by contacting a solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being present in an amount from 40 to 90% by mol with respect to the total amount of donors and selected from succinates and the other selected from 1,3 diethers, an aluminum hydrocarbyl compound, and optionally an external electron donor compound.