ISOCYANATE-CROSSLINKED COATING HAVING REDUCED YELLOWING

摘要

A coating composition is described for producing a clear or colorless coating. The composition comprises: (a) a polymer comprising at least one functional group that is reactive with isocyanate, (b) a blocked polyisocyanate, (c) a hydrazide group, either attached to the polymer (a), to the polyisocyanate (b), or part of a compound different from (a) or (b), wherein at least one of the nitrogens of the hydrazide group is not adjacent to a carbonyl.