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:
Aug. 24, 2021
Filed:
Sep. 13, 2018
Applicant:
Basell Poliolefine Italia S.r.l., Milan, IT;
Inventors:
Antonio Mazzucco, Ferrara, IT;
Enrico Balestra, Ferrara, IT;
Roberto Pantaleoni, Ferrara, IT;
Davide Tartari, Ferrara, IT;
Riccardo Rinaldi, Ferrara, IT;
Assignee:
Basell Poliolefine Italia S.r.l., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 8/26 (2006.01); C08F 210/06 (2006.01); B01J 8/22 (2006.01);
U.S. Cl.
CPC ...
C08F 210/06 (2013.01); B01J 8/228 (2013.01); B01J 8/26 (2013.01); B01J 2208/00734 (2013.01); B01J 2208/00991 (2013.01); C08F 2410/02 (2013.01);
Abstract
A process for the polymerization of olefins in gas phase carried out in a reactor having two interconnected polymerization zones, a first zone (riser) and a second zone (downcomer), wherein growing polymer particles: