Grain enhancement with surfactants in water-based uv-radiation curable polyurethane dispersions

摘要

The present invention relates to aqueous polyurethane dispersions that comprise selected nonionic dispersing agents selected from the group consisting of ethoxylated triglyceride; alkylpoly-ethylene glycol ether of a linear, saturated C 16 -C 18 fatty alcohol; and a linear, saturated C 12 -C 14 alcohol etherified with a poly-C 2 -C 3 alkoxy ether. The dispersions are UV-radiation curable and are useful for the preparation of grain enhanced coating compositions.