Process for the preparation of laqueamentos of multiple layers, chromophores and / or to give effect.Using copolu00ecmeros grafting self reticulu00e1veis polyurethanes and polyurethane self reticulu00e1veis and its copolu00ecmeros graft

摘要

Process for the preparation of laqueamentos of multiple layers, chromophores and / or to give effect.Using copolu00ecmeros grafting self reticulu00e1veis polyurethanes and polyurethane self reticulu00e1veis and its copolu00ecmeros grafting ".Process for the preparation of laqueamento of multiple layers, chromophores and / or suppliers of purpose, in accordance with the wet process in humid.On which is applied a lacquer based on water that contains at least one of the graft copolymer containing (a) at least one copolymer (MET) acrylate and (b) at least one polyurethane.With the graft copolymer can be prepared around if (1) at least one polyurethane (b) hydrophilic or hydrophobic self reticulu00e1vel,In the statistical environment with at least one group olefinicamente unsaturated terminal in position and / or at least one in lateral position and at least one isocyanate group blocked by the molecule in a middle aquoSo,Copolimerizando is via radical below (2) a mixture consisting of a monomer (A1) with at least one isocyanate reactive functional group and at least one copolimerizu00e1vel monomer (A2) with these.In the presence of polyurethane (b) or polyurethane (b) in the emulsion; and coating the layer of lacquer - base with a transparent lacquer resulting paste powder.After the layer of lacquer of lacquer layer and the transparent base, together.Are hardened; new polyurethanes (b) hydrophilic and hydrophobic self reticulu00e1veis with at least one olefinicamente unsaturated group in the lateral position and / or at least one in terminal position and by meIn a group isocianatoo blocked in lateral position by molecule and graft copolymers on the basis of these polyurethanes (b) as well as to its use.