Patent No. U.S. 7,479,308 B2
BASF Coatings AG has received a patent for a process for producing multicoat color and/or effect paint systems comprised of at least one primer, at least one color and/or effect basecoat, and at least one clearcoat comprised of applying at least one primer curable thermally and with actinic radiation to a substrate to give at least one primer film, exposing the at least one primer film to actinic radiation to give at least one partially cured primer film which can still be thermally cured, applying at least one pigmented coating material curable thermally to the outer surface of the partially cured at least one primer film to give at least one pigmented film which can still be cured thermally applying at least one clearcoat material curable with actinic radiation to the outer surface of the at least one pigmented film to give at least one clearcoat film curable with actinic radiation, exposing the at least one clearcoat film curable with actinic radiation to actinic radiation to give at least one clearcoat cured with actinic radiation, and subjecting the at least one primer film, and the at least one pigmented film, to joint thermal curing.