Process for the polymerization of alpha-olefins

US5296564A · kind A · utility

Assignee

• SOLVAY (Société Anonyme) · BE

Inventors

• Helmut Derleth · Nienburg, DE
• Abel Grosjean · Brussels, BE

Key dates

• Filing date: Dec 16, 1992
• Grant date: Mar 22, 1994
• Expiry date: Dec 16, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F10/00
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Process for the polymerization of alpha-olefins in the presence of a catalyst, including providing monodisperse microspheroidal particles by spraying an electrostatically charged gellable liquid material (L) through a spraying orifice and into a chamber, so as to produce macrodrops which break up into microdrops which fall in the chamber and within which gelling is produced after spraying; providing a catalyst for the polymerization of alpha-olefins which contains chromium and which is supported on the monodisperse microspheroidal particles; and polymerizing alpha-olefins in the presence of the catalyst.