Binder mixtures for stoving lacquers

A stoving lacquer comprising

• I) an effective quantity of a crosslinking agent containing methylol and/or blocked methylol groups;
• and
• II) an effective quantity of a binder mixture comprising
• A) at least one alkyd resin;
• and
• B) at least one poly-N-acyl alkyleneimine prepared by cationic polymerization of a monomer mixture of
• a) from 10 to 90% by weight of at least one monomer corresponding to formula (I):
• ##STR7## in which Z is a direct bond or the group CR.sup.5 R.sup.6, R.sup.1 to R.sup.4 can be the same or different and represent H or a C.sub.1-8 alkyl group, R.sup.5 and R.sup.6 can be the same or different and R.sup.7 is a hydroxyl-containing alkyl or alkylene group of a hydroxycarboxylic acid containing 2 to 32 carbon atoms,
• b) from 90 to 10% by weight of at least one monomer corresponding to formula (II):
• ##STR8## in which Z and R.sup.1 to R.sup.6 are as defined above and R.sup.8 is the radical of an aromatic monocarboxylic acid, and
• c) from 0 to 80% by weight of at least one monomer corresponding to formula (III):
• ##STR9## in which Z and R.sup.1 to R.sup.6 are as defined for formula (I), and R.sup.9 represents a non-hydroxy-substituted aliphatic radical of a carboxylic acid wherein the above percentages by weight are based on the weight of the monomer mixture.