Abstract: A two component polyurethane coating consisting of a principal component (A) comprising a hydroxyl group containing film-forming resin, crosslinked polymer particles and a solvent for said film-forming resin and a hardener component (B) comprising a polyisocyanate compound, which is characterized by using as the crosslinked polymer particles composite resin particles each comprising a particulate crosslinked polymer core and a number of substantially linear polymer chains coupled with said core by either chemical bonding, semi-interpenetration or both, and containing metal element in either portion of said core, said polymer chains or both of them; the solid weight ratio of said hydroxyl group containing film-forming resin to said composite resin particles being 99/1 to 40/60 and the equivalent ratio of isocyanate groups in the hardener component (B) to hydroxyl groups in the principal component (A) (if the linear polymer chains contain hydroxyl groups, the sum of said hydroxyl groups and those of the film-fo

Abstract: A two component polyurethane coating consisting of a principal component (A) comprising a hydroxyl group containing film-forming resin, crosslinked polymer particles and a solvent for said film-forming resin, and a hardener component (B) comprising a polyisocyanate compound, which is characterized by using as said crosslinked polymer particles the composite resin particles each comprising a particulate crosslinked polymer core and a number of substantially linear polymer chains coupled with said core in either way of chemical bonding, semi-interpenetration or both of them, the solid weight ratio of said hydroxyl group containing film-forming resin to said composite resin particles being 99/1 to 40/60 and the equivalent ratio of isocyanate groups in the hardener component (B) to hydroxyl groups in the principal component (A) (if the linear polymer chains contain hydroxyl groups, the sum of said hydroxyl groups and those of the hydroxyl group containing film-forming resin) being 0.5 to 2.0.