| abstract |
The present invention relates to a process for coating polycarbonate substrates, especially transparent polycarbonate substrates, in which a transparent coating material comprising (A) at least one radiation-curing binder, (B) nanoparticles and (C) optionally at least one reactive diluent and/or optionally a solvent is applied to a polycarbonate substrate, characterized in that the coating material comprises silicon dioxide nanoparticles (B), the nanoparticles have a d 50 between 80 and 300 nm and the nanoparticles (B) have such a particle size distribution that less than 15% by weight of the particles have a particle size in the range of less than 80 nm, 75 to 95% by weight of the particles have a particle size in the range from 80 to 300 nm, 0 to 5% by weight of the particles have a particle size in the range from more than 300 to 1000 nm and 0 to 5% by weight of the particles have a particle size in the range from more than 1000 nm to 10 000 nm. The present invention also provides the coating materials used in this process and the coated polycarbonate substrates obtainable by the process. |