Aqueous adhesive dispersions

摘要

Aqueous polymer dispersions based on polyurethanes that include a) at least one polyurethane dispersion having a mean particle size of from 60 to 350 nm, and b) at least one polychloroprene dispersion having a mean particle size of from 60 to 300 nm, and c) at least one aqueous silicon dioxide dispersion having a particle diameter of the SiO₂ particles of from 1 to 400 nm. The dispersion can be prepared by admixing a mixture of b) and c) with a). The dispersions can be used in adhesive compositions.