| abstract |
Clear lacquer based on thermal and UV curable solvent, containing (A) at least one poly (meth) acrylate with several hydroxyl functional groups with unsaturated graft (meth) acrylate side groups, (B) at least one urethane aliphatic having several isocyanate functional groups, containing at least two (meth) acrylate groups, (C) at least one aliphatic urethane with (meth) acrylate functional group, free of isocyanate groups, (D) at least one component aliphatic with hydroxyl functional groups, (meth) acrylate functional groups, free of isocyanate and urethane groups with a maximum molecular weight of 1000 g / mol and a (meth) acrylate functionality of at least 4, (E) at least an aliphatic polycarptan, (F) at least one phosphoric acid or phosphonic acid blocked with an amine, in which the amine has a pKb value of> = 3 and a boiling point at normal pressure of> 100 ° C, and ( G) at least einen photoinitiator chosen from the gr upo consisting of α-hydroxyalkylphenyl ketones and monoacrylic phosphine oxides, in which 15 to 33% by weight of component (A), 5 to 30% by weight of component (B), 1 to 9% by weight of component (C are present ), 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), referred in each case to the total weight of the clear lacquer. |