| 摘要 |
The invention relates to foam inhibitors comprising (1) (A) a reaction product of a polyol, an anhydride of an aliphatic C2-C10dicarboxylic acid and an adduct of a polyalkylene glycol and a fatty acid, or (B) a reaction product of a polyol, an anhydride of an aliphatic C2-C10dicarboxylic acid, a higher aliphatic alcohol and a polyethylene glycol, (2) a dialkyl ester of an unsaturated dicarboxylic acid, (3) a mineral oil, (4) a nonionic emulsifier, (5) an anionic emulsifier, and (6) an alkylene diamide, to liquid formulations of such foam inhibitors, and to a process for defoaming aqueous systems with the aid thereof.
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