Alkyl Ether Sulfates

摘要

The present invention relates to alkyl ether sulfate salts of the general formula I RO-(CH₂CH₂O)_x-(CH₂-CHR¹O)_y-(CH₂CH₂O)_zSO₃^-M⁺, (I) where R is an unbranched or branched C₈-C₁₈-alkyl radical or mixtures of different unbranched or branched C₈-C₁₈-alkyl radicals, R¹ is an aliphatic radical selected from the group consisting of methyl and ethyl, M⁺ is a cation, selected from the group consisting of alkali metals, NH₄⁺ and HNR²₃⁺, where R² is selected from the group consisting of unbranched or branched alkyl radicals, CH₂CH₂OH and CH₂CH(OH)CH₃, x has a mean value of 0-3, y has a mean value of 1-10, z has a mean value of 0-30, and the quotient $A=\frac{cmc\left(\mathrm{RO}-{\left({\mathrm{CH}}_2{\mathrm{CH}}_2O\right)}_z{\mathrm{SO}}_3^{-}M^{+}\right)}{\begin{array}{c}cmc(\mathrm{RO}-{\left({\mathrm{CH}}_2{\mathrm{CH}}_2O\right)}_x-\\ {\left({\mathrm{CH}}_2-{\mathrm{CHR}}^1O\right)}_y-{\left({\mathrm{CH}}_2{\mathrm{CH}}_2O\right)}_z{\mathrm{SO}}_3^{-}M^{+})\end{array}}\mathrm{is}>1$ and to their use as anion surfactant component in laundry detergents and cleaning compositions, in chemical engineering applications or in cosmetics formulations.