Composition clear lacquer which cures thermally and UV for refinishing motor vehicles

摘要

clear based curable solvent lacquer thermally and UV, containing (A) at least one poly (meth) acrylate with various hydroxyl functional groups with side groups (meth) acrylate unsaturated grafts, (B) at least one urethane aliphatic having more isocyanate functional groups containing at least two (meth) acrylate, (C) at least one aliphatic functional urethane (meth) acrylate, free isocyanate groups, (D) at least one component aliphatic hydroxyl functional groups, functional groups (meth) acrylate, free isocyanate groups and urethane groups with a maximum molecular weight of 1000 g / mol and a functionality (meth) acrylate of at least 4, (E) at least an aliphatic polymercaptan, (F) at least one phosphoric or phosphonic acid blocked with an amine, wherein the amine has a pK value = 3 and a boiling point under normal pressure of 100 ° C, and ( G) at least einen photoinitiator selected from the gr upo consisting of α-hidroxialquilfenilcetonas and monoacylphosphine oxides, which are present 15 to 33% by weight of component (A), 5 to 30% by weight of component (B), 1 to 9% by weight of component (C ), 3 to 16% by weight of component (D), 0.5 to 25% by weight of component (E), 0.009 to 0.1% by weight of component (F) and 0.03 to 3.1% by weight of component (G), each based on the total weight of the clear lacquer.