| 摘要 |
The invention relates to a method for inhibiting crystallisation of aqueous concentrates in surfactants which contain 40 to 80 percent by weight alkyl- or alkylenoligoglycosides of the formula (I): R<1>O-[G]p, wherein R<1> stands for a branched or linear alkyl radical and/or alkylen radical with 4 to 22 carbon atoms, G means a residual sugar with 5 or 6 carbon atoms and p is a number between 1 and 10, whereby compounds of the formula (II) are added to the concentrates of surfactants as crystallisation inhibitors; R<2>O-R<3>-OR<4> (II) wherein R<2> and R<4> are independently from each other hydrogen or an alkyl radical with 1 to 6 carbon atoms and R<3> stands for a branched or unbranched, saturated or unsaturated bivalent alkyl radical with 2 to 22 carbon atoms, which alkyl radical is optionally interrupted by oxygen atoms and/or compounds of the formula (III): R<5>-OH, wherein R<5> stands for a branched or unbranched, saturated or unsaturated alkyl radical with 1 to 6 C-atoms.
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