Process for obtaining defoaming compositions, characterized in that it comprises mixing 4 to 12% of an aliphatic diamide, said diamide being formulated from a polymethylenediamine containing from 2 to 6 carbon atoms and at least one aliphatic carboxylic acid of long chain containing from 12 to 22 carbon atoms, a small amount of an anionic, cationic or non-ionic surfactant, a small amount of a silicone oil and a low density mineral oil, said diamide having an average particle size of 4 to 7 on the hegman scale and dispersing substantially, uniformly, throughout the oil. (Machine-translation by Google Translate, not legally binding)
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