acrylic polyurethane coatings including polyether polyols

摘要

a polyurethane coating composition comprising an isocyanate component comprising at least one polyisocyanate trimer; and an isocyanate reaction mixture, the isocyanate reaction mixture comprising from 25% to 80% by weight of an acrylic polyol and from 1% to 30% by weight of a polyether polyol based on the total weight of the composition. acrylic polyurethane coating, the acrylic polyol having a solids content of at least 50% by weight based on the total weight of the acrylic polyol and the polyether polyol having a viscosity of less than 500 mpa * s at 25 ° c and a numerical average molecular weight greater than at 300 and less than 700.