Method for producing polyisobutene

US7662900B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Volker Seidl · Mannheim, DE
• Carolin Nadine Duecker · Ludwigshafen, DE
• Alexandra Wiedemann · Worms, DE
• Thomas Wettling · Schifferstadt, DE
• Uwe Rachwalsky · Ludwigshafen, DE
• Marco-Christian Volland · Schifferstadt, DE
• Martin Karches · Neustadt, DE
• Franz Weber · Eppelheim, DE
• Dieter Stuetzer · Dudenhofen, DE
• Werner Bochnitschek · Ludwigshafen, DE

Key dates

• Filing date: Oct 10, 2006
• Grant date: Feb 16, 2010
• Expiry date: Oct 10, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F110/10
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing polyisobutene by polymerizing isobutene using an inert diluent and a halogen-containing Lewis acid as a catalyst, wherein the isobutene in the form of droplets is contacted with the Lewis acid in a polymerization apparatus.