The invention relates to a method for the production of low solvent
sol-gel systems, comprising the following steps: (a) hydrolysis or
condensation of a silane and/or an alkoxide and/or several alkoxides of
Al, Ce, Ga, Ge, Sn, Ti, Zr, Hf, V, Nb and Ta, (b) addition of water to
the reaction mixture until phase separation sets in, and (c) separation
of the condensate phase. The invention also relates to the sol-gel system
thus obtained and to the use thereof.