Schottner, G.G.SchottnerVoigt, P.P.VoigtAmberg-Schwab, S.S.Amberg-SchwabSchmidt Ihn, E.E.Schmidt Ihn2022-03-082022-03-082003https://publica.fraunhofer.de/handle/publica/305789The process for making glass substrates hydrophilic comprises reacting (i) silane(s) (I) with hydrophilic organic group(s) R' and free hydroxyl (OH) and/or OR group(s) with (ii) the glass substrate to form Si-O-Si linkages between the silane and Si-OH groups of the glass substrate; and selecting the R' group(s) so that the angle of contact between the treated glass substrate and water is < 22 deg. . USE - The treated glass substrates are used e.g. in vehicles (claimed), e.g. as windscreens. ADVANTAGE - The present treatment improves the wiping quality, has high long-term stability and causes little scattering of light. It also prevents drops of dew or rain forming, which otherwise would also reduce visibility.de608666patent1997-19702385