| abstract |
: Organosilicon compositions. These compositions are characterized in that they contain 2 to 50% of organosilicon anti-foaming agents and 98 to 50% of powdery solid supports of general formula in which the symbol R represents a methyl, ethyl, n-propyl or isopropyl radical. , n-butyl; the symbol a represents any number ranging from D ,? at 1.1; the symbol b represents any number ranging from 0.002 to 0.2; the symbol c represents any number ranging from 0 to 0.2. These compositions do not contain amino compounds, alkali and alkaline earth metal hydroxides. These compositions have been used to durably reduce the foaming effects of surfactants, particularly laundry powders. |