| abstract |
The invention relates to lacquers containing a compound of general formula (I) or a mixture of compounds of general formula (I), in which n, m, R?1, R?2, R?3, R?4 and R?5 have the following meaning: n stands for a number between 2 and 25, preferably a number between 5 and 15, m stands for a number from 0 to 5, X and Y can be identical or different and stand for a functional group, e.g. a hydroxyl, amino, carboxyl or NCO group, R?1 and R?4 can be identical or different and stand for an alkylene residue, preferably an alkylene residue with 1 to 6 carbon atoms, or for an arylene residue, preferably a phenylene residue, R?2 and R?3 can be identical or different and stand for an alkyl residue, preferably an alkyl residue with 1 to 3 carbon atoms, or for an aryl residue, preferably a phenyl residue, R?5 stands for (a) or (b), in which Z stands for X, Y or R?2. Compounds of general formula (I) improve in particular the resistance to acids, brushes and weather as well as the water-repellent properties of the lacquer coatings produced with the lacquers. |