| 摘要 |
The invention relates to a process for preparing polyorganosiloxane emulsions whose internal phase comprises the active polyorganosiloxane substance and whose external phase comprises, in solution or dispersion, an emulsifier or an emulsifier mixture and, if desired, an emulsion-stabilizing protective colloid, to the polysiloxane emulsions thus obtainable and, in particular, to the use of these macroemulsions, so prepared, as defoamers.
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