Henkel Kommanditgesellschaft Auf Aktien

Margarete Gruenert

Holger Tesmann

Adolf Asbeck

Heinz Mueller

Konrad Albrecht

Josef Koester

Paul Bittner

Hans U Hempel

Fritz Keim

An evaporation inhibitor, having particular use with spray mixtures of agricultural chemicals applied by the low-volume method, in the form of a paraffin-containing aqueous dispersion or a self-emulsifying solution in an organic solvent, and having the following composition:

Evaporation inhibitors

Substantially water-insoluble silicic acid esters corresponding to the following general formula ##STR1## are used to foam inhibitors in foaming systems. In the above formula, X and Y represent the group --OR or a methyl group, R represents a polypropylene glycol ether group and, optionally, a polyethylene glycol ether group which may be substituted by alkoxyl, amino-alkyl, acyl, acylamino, dialkoxyl and oxyaminoalkyl groups containing from 4 to 24 carbon atoms. The total number of glycol ether groups amounts to between 1 and 100, the number of polypropylene glycol ether groups preferably being at least equal to or larger than the number of ethylene glycol ether groups.

Defoaming agents and process of defoaming

Growing community of inventors

Kaarst, Germany

Margarete Gruenert