Method for preparation of penta-block copolymers with oh-functionalized blocks based on (meth)acrylate

US8034879B2 · kind B2 · utility

Assignees

• Evonik Röhm GmbH · DE
• Henkel AG&Co. HGAA · DE

Inventors

• Sven Balk · Frankfurt, DE
• Gerd Loehden · Essen, DE
• Holger Kautz · Hanau, DE
• Volker Erb · Goldkronach, DE
• Uwe Franken · Dormagen, DE
• Georg Kinzelmann · Pulheim, DE
• Thomas Moeller · Goldkronach, DE

Key dates

• Filing date: Aug 11, 2008
• Grant date: Oct 11, 2011
• Expiry date: Aug 11, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F293/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing CABAC or ACBCA pentablock copolymers based on (meth)acrylate with an OH functionalization of the A blocks.