Wässrige Beschichtungszusammensetzungen auf der Basis von Polyurethan-Dispersionen und deren Verwendung zum Beschichten von Substraten

The description refers to aqueous coating compositions on the basis of polyurethane dispersions and their application for coating substrates. The coating compositions mainly consist of aqueous non-reactive physically drying polyurethane dispersions which are mixed with aqueous polyvinyl alcohol solutions. The coating compositions form highly elastic and largely tear-resistant protective films on substrates such as leather, wood, textile fabric or parts of the human body. The protective films have high water vapour permeability and high abrasion resistance.