Method for high pressure polymerization of ethylene

US6887955B2 · kind B2 · utility

Assignee

• Basell Polyolefine GmbH · DE

Inventors

• Andreas Deckers · Flomborn, DE
• Frank-Olaf Maehling · Mannheim, DE
• Georg Groos · Schifferstadt, DE
• Wilhelm Weber · Neustadt, DE
• Gernot Koehler · Ludwigshafen, DE

Key dates

• Filing date: Aug 13, 2002
• Grant date: May 3, 2005
• Expiry date: Aug 13, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F110/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

In a process for the polymerization of ethylene and optionally further monomers in a high-pressure reactor at from 120 to 350° C. and pressures of from 1000 to 4000 bar, hydrogen is intermittently introduced into the reactor.