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Priority claimed from DE19863613128external-prioritypatent/DE3613128A1/en
Application filed by Henkel KgaafiledCriticalHenkel Kgaa
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Publication of ATE66824T1publicationCriticalpatent/ATE66824T1/en
1. A block copolymer (I) used as a foam inhibitor has the formula given in DE3531212.3, with R = trimethylolpropane-or trimethylolethane-residue. (This formula is as follows): (I) (as specified in the Master Patent or ad modified above) is used in combination with an emulsifier (II) of formula R1O-(CH2CH2O)n-R2 R1 = 8-20C alkyl or alkenyl or 12-20C alkylaryl; R2 = 4-6C alkyl; n = 6-20. 2. The above mixt. is claimed as such, with R1 = 12-18C alkyl or alkenyl. Pref. amts. are 99-70 (esp. pref. 96-80) wt.% (I) and 1-30 (esp. pref. 4-20 wt.% (II).