Method for producing ABA-triblock copolymers with a bimodal B-block

US8895669B2 · kind B2 · utility

Assignees

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

Inventors

• Sven Balk · Frankfurt, DE
• Holger Kautz · Hanau, DE
• Stephan Fengler · Frankfurt, DE
• Christine Troemer · Hammersbach, DE
• Monika Maerz · Alzenau, DE
• Lars Zander · Rommerskirchen, DE
• Jens Lueckert · Kohlenbissen, DE
• Johann Klein · Goldkronach, DE
• Thomas Moeller · Goldkronach, DE
• Volker Erb · Goldkronach, DE

Key dates

• Filing date: Oct 6, 2009
• Grant date: Nov 25, 2014
• Expiry date: Oct 4, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2666/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a controlled polymerization method for producing ABA-triblock copolymers on the basis of (meth)acrylate with A-blocks which have a narrow, monomodal molecular weight distribution and a B-block which has a bimodal molecular weight distribution, and to the use thereof as binders in glues and sealing materials.