Patent ID: 8747804

Claim:
A process for preparing modified ZnO particles, the process comprising: mixing a zinc salt and a base in a polar solvent to give a first mixture which comprises zinc oxide; removing the polar solvent from the first mixture by distillation, filtration, centrifugation, or decantation, to obtain a residue which comprises zinc oxide, or which comprises zinc oxide and at least one further by-product; directly taking up said residue after removing the polar solvent into a nonpolar solvent to give a second mixture; adding at least one surface-active substance to the second mixture, to give a third mixture which comprises the modified zinc oxide particles; adding at least one further effect substance that is a UV absorber to the third mixture, to give a fourth mixture containing modified ZnO particles; and then separating off the modified ZnO particles from any by-products in the fourth mixture.