| 摘要 |
The invention relates to an aqueously dispersible polyurethane having a specific amount of silicon n (Si) / m (PU) of from 0.05 mol/kg to 1 mol/kg, and a specific amount of urea groups, n (U)/ m (PU), >N-CO-N< of from 0.8 mol/kg to 2 mol/kg, wherein in each case the specific amount of substance is calculated as the ratio of the amount of substance n of the entity under consideration, to the mass m (PU) of the polyurethane, to a process for the preparation thereof, and a method of use thereof. |
