| abstract |
The invention concerns coating compounds based on binders containing hydroxyl groups and cross-linking agents containing isocyanate groups, characterized in that I) the binder consists of A1) 5-80 % by wt. of at least one polyester or alkyd resin with a hydroxyl number of 0-200 mg KOH/g and an acid number of 0-200 mg KOH/g, A2) 95-20 % by wt. of at least one polyacrylate with a hydroxyl number of 30-250 mg KOH/g and an acid number of 0-50 mg KOH/g, the sum of the proportions of components A1 and A2 being 100 % by wt. and II) the binder is made from 1) at least one polycondensation resin whose acid component includes 5-100 mole % of cycloaliphatic polycarboxylic acids and/or esterifiable derivatives of such acids, 2) at least one polyacrylate produced at least partly in the presence of the polycondensation resin obtained in the first process step and 3) optionally at least one other polyaddition and/or polycondensation resin. |