aqueous coating composition, substrate, water dispersible polyurethane, process for preparing a water dispersible, chain extended and crosslinked polyurethane, method for coating a substrate, and use of a water dispersible polyurethane.

摘要

The invention relates to aqueous polyurethane dispersions which are UV-curable. polyurethanes are extended in the chain with aromatic, cycloaliphatic or aliphatic diamine compound and crosslinked with aliphatic triamine compound. Polyurethanes are dispersions usable for the coating of various substrates.