Polyurethane acrylate dispersions (PUD) of low viscosity

摘要

Polyurethane acrylate dispersions (PUD) of low viscosity.The present invention describes a process for the preparation of aqueous dispersions of low viscosity radiation curable acrylates based polyurethane (UV - puds), and the UV puds hidrofilizados by means of carboxylic acids with hydroxy functionality with a viscodida Of lower starting when a large part of uretanizau00e7u00e3o, i.e.The conversion of the components with reaction with NCO functionality with the compounds with feature Oh, occurs initially without the presence of the compounds protadores acid and the construction of compounds with acid occurs as late as possible through its hydroxyl function La.