JP2505421B

1. Aqueous contact adhesive dispersion containing, relative to the total weight of the dispersion, 40 to 65 percent by weight of a copolymer which can be obtained by free-radical copolymerization of ethylene, vinyl esters of saturated C2 - to C12 -carboxylic acids, ethylenically unsaturated carboxylic acids, ethylenically unsaturated hydroxyalkyl-functional compounds, if appropriate (meth)-acrylates containing C4 - to C12 -alkyl groups and if appropriate further ethylenically mono- or polyunsaturated compounds by the emulsion polymerization process, and which has a glass transition temperature in the range -20 to -60 degrees C and a Fikentscher K value, measured in tetrahydrofuran, in the range 50 to 180, characterized in that it is obtainable by emulsion polymerization of a) 10 - 45% by weight of ethylene b) 0 - 25% by weight of acrylate(s) c) 40 - 89% by weight of vinyl ester(s) d) 0.5- 4% by weight of ethylenically unsaturated carboxylic acids having 3 - 4 C atoms e) 0.5- 10% by weight of ethylenically unsaturated hydroxyalkyl-functional compounds f) 0 - 10% by weight of further ethylenically mono- or polyunsaturated compounds in the presence of 1 - 6% by weight relative to the comonomer mixture, of customary emulsifiers.