Process for the polymerization of ethylene

US10077322B2 · kind B2 · utility

Assignee

• Basell Poliolefine Italia S.r.l. · IT

Inventors

• Pietro Baita · Rovigo, IT
• Tiziano Dall'Occo · Ferrara, IT
• Maria Di Diego · Ferrara, IT
• Dario Liguori · Ferrara, IT
• Lorella Marturano · Ferrara, IT
• Andreas Maus · Frankfurt, DE
• Gabriele Mei · Ferrara, IT
• Gerhardus Meier · Frankfurt, DE
• Giampiero Morini · Ferrara, IT
• Roberta Pica · Ferrara, IT
• Ulf Schueller · Weiterstadt, DE

Key dates

• Filing date: Dec 1, 2015
• Grant date: Sep 18, 2018
• Expiry date: Dec 1, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2500/18
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

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.