| abstract |
Use of an aqueous dispersion for the manufacture of adhesives, in which the aqueous dispersion of polymers is obtainable by a process comprising the following steps: A) preparation of an aqueous dispersion of at least one essentially non-crosslinked PU polyurethane, in the form of dispersed polyurethane particles, in which the PU polyurethane is obtainable by a polymerization of PU-M compounds that form polyurethane, containing at least one PU-M2 diol, exhibiting at least one C2-C14 polyalkylene ether group, exhibiting at minus one unit of the formula (i) -O-CHRa-CH2-Rb- (i), in which Ra represents hydrogen or C1-C12 alkyl, Rb represents a bond or C1-C3 alkylene, in which Ra does not represent hydrogen when Rb is a bond, and in which the PU exhibits essentially no double bonds with ethylenic unsaturation and exhibits a gel fraction of <20%; B) Radical polymerization of a PA-M monomer composition of radically polymerizable ethylenically unsaturated compounds, comprising as main component at least one ethylenically unsaturated monomeric compound, exhibiting a solubility in water of <60 g / l at 20 ° C and 100 kPa, in which the monomer composition exhibits a theoretical glass transition temperature according to Fox of maximum 50 ° C, in the aqueous dispersion of the at least one PU polyurethane, in which the main amount of the composition of PA-M monomer is added in the course of polymerization to the aqueous dispersion of the at least one PU polyurethane. |