Patent ID: 7141276

Claim:
A substrate including a hydrophobic permanent coating, comprising: a crosslinked layer of coating agent containing perfluoroalkyl groups, the crosslinked layer comprising at least one hardener component (A) and at least one resin component (B); at least one of the at least one hardener component (A) and the at least one resin component (B) includes at least one of chemically coupled lateral and terminal perfluoroalkyl groups including at least one trifluoromethyl end group; a coupling between the crosslinked layer and a surface region of the substrate; the at least one hardener component (A) is at least one compound of a (poly)epoxy-, blocked (poly)isocyanate-, and (poly)uretdione compound, the at least one compound includes at least one of chemically coupled lateral and terminal perfluoroalkyl groups including at least one trifluoromethyl end group; at least one spacer chain with a chain length of 1–60 C atoms binding the at least one of chemically coupled lateral and terminal perfluoroalkyl groups including at least one trifluoromethyl end group with at least one of the at least one hardener component (A) and the resin component (B) by at least one of a functional group comprising at least one of ether-, carboxylic acid amide- and sulfonic acid amide-.