PROCESS OF OBTAINING A POLYURETHANE COATING COMPOSITION HAVING EXTENDED POT-LIFE

摘要

The invention relates to polyurethane coating compositions having a pot-life of at least 8 hours and a de-blocking temperature of 50-100° C. The composition comprises: a) a blocked isocyanate formed by mixing at least one isocyanate functional compound with at least one imidazole and b) at least one polyol. The composition can be used on heat sensitive substrates. Methods of making such a composition are also described. The invention was applications in the coating industry.