Coating compositions comprising stabilized reaction product of hydroxyl-terminated urethane and melamine resin

摘要

Compositions of matter consisting of (A) urethane prepolymers having terminal hydroxy groups produced from (1) a polyol of 200-3,000 molecular weight, (2) an organic polyisocyanate and (3) a polyhydric alcohol which are admixed with (B) a polyalkylether of a polymethylol and (C) an acid catalyst are rendered more adherent to polymeric substrates by incorporating therein various ultraviolet light absorbers.