in this example the addition of 2 ethyl 1 3 hexane diol a preferred polyalcohol to the mixture of the starting material and acetylacetone results in that the diol substitutes for the propoxyl groups initially coordinated to titanium in the starting material accordingly the chelate compound of titanium in the starting material converts into another chelate compound in which two molecules of acetylacetone are coordinating as chelate ligands to titanium and two moleculates of the diol as nonchelate ligands a solution of this chelate compound of titanium is obtained by the addition of dichloromethane a preferred solvent a suitable amount of the polyalcohol used in this method is variable depending on the kind of the polyalcohol in the case of 2 ethyl 1 3 hexane diol it is suitable that the proportion of the diol to the starting material is in the range from 0 5 to 1 3 by volume using a conventional spraying apparatus and humidity controlled compressed air the solution prepared in this example was sprayed onto a major surface of a soda lime glass plate produced by the float process in the spraying operation the glass plate was kept at about 570 u00b0 c and the moisture content in the spraying atmosphere was controlled to 10 g m 3 at n t p in the first run but increased.