Aqueous dispersion of an oxazoline group-containing polymer

US10730963B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Matthias Zorn · Heppenheim, DE
• Kathrin Michl · Ludwigshafen, DE
• Christian Brand · Hettenleidelheim, DE

Key dates

• Filing date: Jul 26, 2016
• Grant date: Aug 4, 2020
• Expiry date: Jun 2, 2037

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21H27/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for preparing aqueous dispersions of polymers containing oxazoline groups, by aqueous emulsion polymerization initiated by free radicals. The polymerization are carried out in two stages. In the first polymerization stage, an α,β-monoethylenically unsaturated compound having at least one acid group, an monoethylenically unsaturated compound having at least one carboxylic acid amide group, a monoethylenically unsaturated compound having at least one carboxylic acid amide group are copolymerized. In the second polymerization stage, a monoethylenically unsaturated compound having at least one oxazoline group, a monoethylenically unsaturated compound having at least one carboxylic acid amide group and an ethylenically unsaturated compound are copolymerized with the final product from the first polymerization stage.