| 摘要 |
<p>Anti-foaming agents comprise polysiloxane emulsions contg. 1-10wt.% polysiloxane oil, 1-20wt.% org. solvent chosen from high mol.wt. hydrocarbons, alkyl halides and aryl halides (esp. dodecyl chloride or chlorobenzene), 1-10wt.% of mono- and/or di-glycerides of high mol.wt. satd. and/or unsatd. fatty acids with a chain length of 12-18 C, 1-10wt.% of a fatty alcohol polyglycol ether or an alkylphenol polyglycol ether and 50-96wt.% water.</p> |
