Aqueous polymer compositions comprising polyurethane (meth)acrylates

US10703929B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Sebastian Berger · Olavarría, AR
• Peter Thuery · Ludwigshafen, DE
• Susanne Neumann · Speyer, DE
• Uwe Burkhardt · Kaiserslautern, DE
• Axel Becker · Altrip, DE
• Daniel Kunz · Heidelberg, DE
• Stefan Wahl · Ludwigshafen, DE
• Christine Roesch · Mainz, DE

Key dates

• Filing date: Aug 16, 2016
• Grant date: Jul 7, 2020
• Expiry date: Oct 19, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2201/54
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Aqueous polymer compositions and their use as coatings are disclosed. A composition includes at least one polyurethane (meth)acrylate A and at least one compound B having a molecular weight of below 1000 g/mol and having at least two ethylenically unsaturated double bonds per molecule. The polyurethane (meth)acrylates A include the following components: component A1 includes at least one polyisocyanate A1a and at least one diisocyanate A1b; component A2 includes at least one compound having at least one ethylenically unsaturated double bond, and at least one functional group F; component A3 includes at least one neutral polyol including at least one aliphatic, polymeric polyol A3a and at least one low molecular weight diol A3b; component A4 includes at least one compound having at least one ionic or ionizable group I′ and at least one functional group F′; and component A5 includes at least one poly-C2-C3 alkylene ether.