Compositions for the control of unwanted foam and their use

摘要

A composition for the control of unwanted foaming comprising (a) Soya bean oil (b) a mineral oil (c) a finely divided silica (d) an unsubstituted fatty acid monoester of glycerol (e) an unsubstituted fatty acid ester of a polyoxyalkylated sorbitan. These compositions are valuable for the control of foam especially in fermentations since they are stable to sterilization. Also they may be used in paints since they do not give the defects often associated with silicone antifoams.