Alkoholalkoxylate als schaumarme oder schaumdämpfende Tenside

摘要

The invention relates to alcohol alcoxylates of general formula (I) R<1>-O-(CH2-CHR<5>-O-)r(CH2-CH2-O-)n(CH2-CHR<6>-O-)s(CH2-CHR<2>-O-)mH, wherein R<1> represents at least a mono-branched C4-22 alkyl, R<2> represents C3-4 alkyl, R<5> represents C1-4 alkyl, R<6> represents methyl or ethyl, n represents a mean value of between 1 and 50, m represents a mean value of between 0 and 20, r represents a mean value of between 0 and 50, s represents a mean value of between 0 and 50, whereby m is at least 0.5, if R<5> is methyl or ethyl, or if r has the value 0; or to alcohol alcoxylates of general formula (II) R<3>-O-(CH2-CH2-O-)p(CH2-CHR<4>-O-)qH, wherein R<3> represents a branched or unbranched C4-22 alkyl, R<4> represents C3-4 alkyl, p represents a mean value between 1 and 50 and q represents a mean value of between 0.5 and 20. Said alcohol alcoxylates are used as low-foam, or foam-inhibiting surfactants.