ONE-PACK TYPE THERMOSETTING POLYURETHANE COATING COMPOSITION

摘要

Disclosed is a thermosetting polyurethane coating composition of one-pack type which comprises (1) a compound having at least one NCO group blocked with an alcohol, lactam or oxime blocking agent and at least one oxadiazine-2,4,6-trione ring and (2) a polyol having a molecular weight of 400 to 50,000. The composition has good storage stability and provides coating films having no problems such as yellowing and pin-holes and excellent in mechanical properties, chemical resistance and weather resistance.