Compound antifoams for defoaming polymer dispersions and aqueous coating systems

摘要

The invention relates to compound antifoams comprising alkoxylated partial esters-using from 3 to 60 mol of propylene oxide with or without from 1 to 10 mol of styrene oxide and/or from 1 to 10 mol of butylene oxide-of oligoglycerols, obtainable by condensation of 2 to 20 glycerol molecules, with C8 to C22fatty acids and inorganic or organic solids for defoaming polymer dispersions and aqueous coating systems.