Photocatalytic layer system including substrate carrying a first easily wettable layer containing photocatalytic material and second difficult to wet layer useful for coating glass, ceramic, stone, synthetic polymer

摘要

Photocatalytic layer system including substrate carrying first layer containing photocatalytic material of photo-inducible (sic) high surface energy and good wettability or hydrophile, where first layer carries second poorly wettable layer gives increased contact angles : An independent claim is included for a process of producing the layer system, where the second layer can be a layer of diamond-like carbon (DLC), by a PVD, ion beam sputtering, CVD, PECVD, evaporation, painting and/or a sol-gel process.