The present invention relates to aqueous polymer dispersions having a polymer content of at least 55 wt.-%, said dispersions being suitable for adhesives. The invention also relates to a method for producing said aqueous polymer dispersions and the use of the aqueous polymer dispersions in adhesives or adhesive compositions, especially in adhesives for transparent substrates such as plastic labels. The aqueous polymer dispersions have a polymer content of at least 55 wt.-% relative to the total weight of the dispersion, wherein the polymer is made up of ethylenically unsaturated monomers M and has a glass transition temperature of less than -10°C, wherein the dispersed polymer particles have a polymodal particle size distribution, wherein at least 70 wt.-%, preferably at least 75 wt.-%, in particular at least 80 wt.%, especially preferably at least 85 or at least 90 wt.-% of the polymer particles have a particle diameter of less than 350 nm, in particular less than 340 nm, especially less than 330 nm.

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<<Micropatent LLC -- 10/27/2009>>