Antifoams and / or a ventilating device for aqueous, which has a tendency for the formation of foam media

摘要

Antifoams and / or a ventilating device on the basis of oil - - - dispersions in water, the oil phase at least one compound from the group of alcohols with at least 12 c - atoms, alkoxylated fatty alcohols, mono -, di - and triglycerides of fatty acids, fatty acid esters from carboxylic acids with at least 12 c - atoms and a - to trihydric alcohols having from 3 to 33 c - atoms, hydrocarbons having a boiling point above 200°C, fatty acids having 12 to 22 c - atoms, 3 - by thia alkane - 1 - ole, 3 - by thia oxide alkane - 1 - ole, 3 - by thia dioxide - alkane - ole and esters of by thia alkane compounds in combination with (i) at least a polyglycerol esters, the at least 20% strength by esterification of polyglycerol with a 12 to 36 c - atoms and carboxylic acid is obtainable, and (ii) at least one bisamide aujs ethylenediamine and carboxylic acids having 10 to 36 c - atoms and the aqueous phase contains at least one stabilizer, water and, if appropriate, a thickening agent for aqueous, which has a tendency for the formation of foam media and the use of the antifoams and / or a ventilating device for the foam inhibition of a tendency for the formation of foam aqueous media, in particular for the foam inhibition in the case of the pulp digestion, during the pulp washing stage, the beating of paper stock, the manufacture of paper and the dispersing of pigments for the manufacture of paper.