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. 18, 2018
Filed:
Dec. 01, 2015
Applicant:
Basell Poliolefine Italia S.r.l., Milan, IT;
Inventors:
Pietro Baita, Ferrara, IT;
Tiziano Dall'Occo, Ferrara, IT;
Maria Di Diego, Ferrara, IT;
Dario Liguori, Ferrara, IT;
Lorella Marturano, Ferrara, IT;
Andreas Maus, Frankfurt am Main, DE;
Gabriele Mei, Ferrara, IT;
Gerhardus Meier, Ferrara, IT;
Giampiero Morini, Ferrara, IT;
Roberta Pica, Ferrara, IT;
Ulf Schueller, Frankfurt am Main, DE;
Assignee:
Basell Poliolefine Italia S.r.l., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/649 (2006.01); C08F 4/654 (2006.01); C08F 110/02 (2006.01); C08F 210/02 (2006.01); C08F 2/34 (2006.01);
U.S. Cl.
CPC ...
C08F 2/34 (2013.01); C08F 4/6493 (2013.01); C08F 4/6494 (2013.01); C08F 110/02 (2013.01); C08F 2410/02 (2013.01); C08F 2500/12 (2013.01); C08F 2500/18 (2013.01);
Abstract
The present disclosure provides a gas-phase polymerization process for preparing polyethylene, wherein halogenated alcohols in combination with a Ti based catalyst component and aluminum alkyls as co-catalyst suppress ethane formation or increase polymerization activity.