Polyureas as rheology control agents

US9617371B2 · kind B2 · utility

Assignee

• BYK-CHEMIE GMBH · DE

Inventors

• Daniela Leutfeld · Wesel, DE
• Bianca Morhenn · Krefeld, DE
• Marc Eberhardt · Wesel, DE
• Ina Kober · Oberhäuser, DE
• Jürgen Omeis · Wulfen, DE
• Sylvia Bühne · Duisburg, DE
• Berthold Jacobs · Wesel, DE

Key dates

• Filing date: Sep 3, 2010
• Grant date: Apr 11, 2017
• Expiry date: Apr 11, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L75/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to polyureas having a weight-average molecular weight ranging from 5,000 to 70,000 g/mol, the preparation thereof, and the use thereof as rheology control agents. The invention further relates to rheology control agents containing polyureas and to the use thereof. The invention moreover relates to formulations containing polyureas.