Polyurethane coating compositions from dicyclopentenyl acrylate and/or methacrylate

摘要

This invention is concerned with autoxidizable coating compositions which contain (a) a member selected from the group consisting of an organic polyisocyanate, a urethane oil, and a uralkyd; (b) at least one non-volatile reactive liquid monomer selected from the group consisting of dicyclopentenyl acrylate and dicyclopentenyl methacrylate; and (c) an effective amount of a polyvalent metal-containing complex or salt that catalyzes the curing of (a) and (b). Use of the non-volatile reactive liquid component enables the production of coating compositions having high application solids content and yet having suitable viscosity for efficient handling. The coatings obtained from the compositions of the present invention combine the typical desirable properties including durability, weather-resistance, etc. of polyurethane coatings and often with unexpected enhancement of the quality of the coatings, such as in respect to toughness, while providing such compositions having higher solids content to facilitate the coating operations therewith.