| 摘要 |
Alkali-resistant foam suppressant which is free from silicone oil, containing (a) a homopolymer of an aliphatic C2-C12alkyl ester of (meth)-acrylic acid or a copolymer of this alkyl ester with a di-C2-C12alkyl ester of an ethylenically unsaturated dicarboxylic acid, (b) an anionic or nonionic emulsifier and (c) an apolar solvent, its preparation and its use for suppressing foam in aqueous systems.
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