IN-MOLD COATING METHOD FOR THE PRODUCTION OF MOLDED PARTS WITH THE AID OF AN AQUEOUS 2-COMPONENT LACQUER FORMULATION

摘要

The invention relates to an in-mold coating method for producing molded parts with the aid of aqueous 2-component lacquer formulations containing: A) 40 to 90 percent by weight (relative to the entire formulation) of at least one aqueous non-functional or hydroxy-functional resin dispersion, B) 5 to 40 percent by weight (relative to the entire formulation) of at least one hardener component having a free isocyanate group concentration of 10 to 23 percent by weight relative to the solid resin, and C) fillers, pigments, auxiliaries, and additives, the total percentage by weight amounting to 100 percent. The invention is characterized in that component B) is essentially composed of trimer mixtures based on aliphatic and/or cycloaliphatic diisocyanates containing proportionate amounts of isocyanurate-type compounds (type I) and iminooxadiazine dione-type compounds (type II), at least 10 percent by weight of iminooxadiazine dione-type compounds (type II) relative to the isomeric trimer structures being provided.