| abstract |
(57) [Summary] [Purpose] A two-component urethane coating composition with improved sag and curability, and a one-component composition containing a heat dissociable block polyisocyanate that can be cured at low temperatures, especially 120 ° C or less, as a curing agent component. A urethane coating composition is provided. [Structure] A polyisocyanate derived from at least one kind of aliphatic / alicyclic diisocyanate, or a block polyisocyanate obtained from the polyisocyanate, and having an average number of functional groups of the isocyanate of 4. The composition for urethane coating composition, wherein the curing agent component is polyisocyanate or block polyisocyanate, which is 5 to 10. |