Aqueous dispersions containing polymerizates produced in multiple stages with polyurethanes as well as coating agent compositions containing same

US11041093B2 · kind B2 · utility

Assignee

• BASF COATINGS GMBH · DE

Inventors

• Cathrin Corten · Unna, DE
• Dirk Eierhoff · Munster, DE
• Wilma Nimz · Haltern, DE
• Nicole Freitag · Hachenburg, DE
• Heinz-Ulrich Grumpe · Sende, DE
• Mechthild Vienenkoetter · Ascheberg, DE

Key dates

• Filing date: Jul 20, 2017
• Grant date: Jun 22, 2021
• Expiry date: Jan 23, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D187/005
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Aqueous dispersions including multistage-prepared polymers of mixtures of olefinically unsaturated compounds are disclosed. The aqueous dispersions include at least one polyurethane containing olefinically unsaturated groups. Production and use of the aqueous dispersions, particularly in the field of automotive finishing, is disclosed. The disclosure further relates to an aqueous basecoat material including the multistage-prepared polymers, and also to a method for producing a multicoat paint system using the aqueous basecoat material.