Patent ID: 8865818

Claim:
An aqueous dispersion or a kit that comprises at least two aqueous dispersions for improving the resistance and the drying properties of an aqueous binder system, wherein the aqueous dispersion (i) comprises nanoscale ZnO particles and nanoscale particles of at least one non-ZnO metal oxide, semimetal oxide or oxo salt, and wherein the kit (ii) comprises at least two aqueous dispersions comprising a first aqueous dispersion which comprises nanoscale ZnO particles and one or more further aqueous dispersions which comprise nanoscale particles of at least one non-ZnO metal oxide, semimetal oxide or oxo salt, and wherein the nanoscale particles of the at least one non-ZnO metal oxide, semimetal oxide or oxo salt comprise hydrophobic particles and a fraction of the nanoscale particles of at least one non-ZnO metal oxide, semimetal oxide or oxo salt, relative to a total weight of the nanoscale ZnO particles and the nanoscale particles of at least one non-ZnO metal oxide, semimetal oxide or oxo salt, is from 0.5% to 20% by weight.