Antifoam additive

Antifoam additive

Agents which contain (a) an ester of aliphatic carboxylic acids and aliphatic alcohols having a boiling point of at least 150 DEG C. and -based on (a -b) 0.5-10% by weight of an amide of the formula (I) in which R stands for C10-C22-alkyl or -alkenyl, R' stands for H or C1-C4-alkyl, or the two...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: BREYER, KARL-HEINZ, WALZ, KLAUS
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Beschreibung
Zusammenfassung:Agents which contain (a) an ester of aliphatic carboxylic acids and aliphatic alcohols having a boiling point of at least 150 DEG C. and -based on (a -b) 0.5-10% by weight of an amide of the formula (I) in which R stands for C10-C22-alkyl or -alkenyl, R' stands for H or C1-C4-alkyl, or the two R' together stand for an ethylene bridge, and R'' stands for the radicals or -CH2-O-CH2-, wherein R''' stands for H, C1-C6-alkyl or phenyl, and (c) 1-30% by weight of a non-ionic surfactant are used for removing foam, for preventing foam formation and for deaerating aqueous systems.