Patent ID: 7026428

Claim:
Aqueous and/or water-dilutable blocked polyisocyanates of the formula (I) in which A denotes the radical of a polyisocyanate, B denotes the radical of a cationic, anionic and/or nonionic hydrophilicizing agent, R 1 , R 2 and R 3 may be identical or different and denote hydrogen, C 1 –C 4 -alkyl or C 6 –C 10 -cycloalkyl, R 4 denotes C 1 –C 4 -alkyl, C 6 –C 10 -cycloalkyl or C 1 –C 14 -aralkyl, and x stands for the number 1, 2, 3, 4 or 5 and y denotes a number from 1 to 8, and z denotes a number from 0.1 to 4, the equivalents ratio of y to z being from 20:1 to 1:1.