Method for anionic polymerization of α-methylstyrene

US7101941B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Philippe Desbois · Maikammer, DE
• Michael Ishaque · Mannheim, DE
• Christian Schade · Ludwigshafen, DE
• Alain Deffieux · Talence, FR
• Stéphane Carlotti · Pessac, FR

Key dates

• Filing date: Jan 28, 2004
• Grant date: Sep 5, 2006
• Expiry date: Jan 28, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L53/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Process for preparing homopolymers of α-methylstyrene, or copolymers of α-methylstyrene and comonomers, by anionic polymerization in the presence of an initiator composition, which comprises using an initiator composition in which potassium hydride and at least one organylaluminum compound are present.