AQUEOUS ADHESIVE DISPERSIONS

摘要

The invention relates to polyurethane-based aqueous polymer dispersions whic h comprise a) a polyurethane dispersion having an average particle size of fro m 60 to 350 nm and b) an aqueous silica dispersion having a particle diameter of the SiO2 particles of from 20 to 400 nm. The invention also relates to a method for producing the inventive dispersions and to the use thereof.