ORGANOPOLYSILOXANES FOR DEFOAMING AQUEOUS SYSTEMS

摘要

The invention relates to the use of water-insoluble organopolysiloxane derivatives of the general formula (I) (see formula I) in which the radicals R1 are alkyl radicals having 1 to 4 carbon atoms or aryl radicals, but at least 80% of the radicals R1 are methyl radicals, and R2 at least once in the molecule has the definition (a) (see formula II) for defoaming aqueous media, especially printing inks and paints.