Controlled free-radical polymerization products using new control agents

US6737488B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Pierre Vanhoorne · Monheim, DE
• Rolf-Volker Meyer · Krefeld, DE
• Christophe Detrembleur · Liège, BE
• Robert Jerome · Tilff, BE

Key dates

• Filing date: Feb 25, 2002
• Grant date: May 18, 2004
• Expiry date: Feb 25, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2438/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for the production of polymers by means of pseudo-living free-radical polymerization is disclosed. The process entails (i) reacting a polymerizable vinyl monomer with nitrogen monoxide and at least one initiator to prepare a free-radical intermediate product, and (ii) polymerizing the intermediate product optionally together with one or more additional monomers and/or with a free-radical initiator.