| abstract |
Use of a 2-component PU coating system comprising the components A) binder and B) hardener for coating flexible substrates, in particular leather or textile, characterized in that the hardener component B) contains an aspartic acid ester of the formula I DOLLAR F1 in which DOLLAR AR · 1 · and R · 2 · independently of one another are the same or different and stand for C¶1¶-C¶4¶-alkyl, DOLLAR AX stands for a radical of the formula DOLLAR F2, DOLLAR A in which DOLLAR AA means a divalent organic radical, DOLLAR AZ means a divalent aliphatic radical with 4 to 18 C atoms and DOLLAR A n stands for 0 to 1. |