Wäßriger Lack und dessen Verwendung zur Herstellung einer zweischichtigen Lackierung

摘要

The invention relates to an aqueous varnish, characterized in that it contains 5-95 wt. % (in relation to the overall bonding agent content) of a bonding agent constituent a) and 5-95 wt. % (in relation to the overall bonding agent content) of a bonding agent constituent b). The bonding agent constituent a) can be obtained by radical polymerization of an aqueous dispersion of a polyurethane resin with ethylenically unsaturated monomers and in the presence of a water-insoluble initiator. The bonding agent constituent b) can be obtained by polymerizing ethylenically unsaturated monomers in an organic solvent or in a mixture of organic solvents in the presence of a polyurethane resin and the bonding agent constituent b) thus obtained in transformed into an aqueous dispersion.