| 摘要 |
The invention relates to amphiphilic acetal of the formula (1) wherein R1 is n-C8-C22-alkyl, iso-C9-C22-alkyl, n-C5-C18-alkylphenyl or iso-C5-C18-alkylphenyl, R2 and R4 are each independently C1-C7-alkyl or have the same meaning as R1, R3 is C1-C7-alkyl, A is a group of the formulae -C2H4- or -C3H6-, and the indices a, b, c and d are each independently from 0 to 50, where at least one of the indices a, b, c or d has to have a value other than 0. The compounds of the invention are suitable as surfactants, emulsifiers, demulsifiers, humectants, foamers, or antifoaming agents.
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