Novel alkyl ether sulfates useful as anionic surfactants in detergents, cleansing or cosmetic compositions or chemical-technical applications have alkylene oxide units between the alcohol component and sulfate group

摘要

Alkyl ether sulfates obtained from alkoxylated, sulfated alcohols and having propylene- and/or butylene-oxide and optionally also ethylene oxide units between the alcohol component and sulfate group, are new. Alkyl ether sulfates of formula (I) are new RO-(CH 2CH 2O) x-(CH 2CHR 1>-O) y-(CH 2CH 2O) zSO 3M (I) R = 8-18C alkyl or mixture; R 1> = methyl and/or ethyl; M = an alkali metal, (NH 4) +> or HN(R 2>) 3 anion; R 2> = alkyl, CH 2CH 2OH or CH 2CH(OH)CH 3; x = on average 0-3; y = on average 1-10; z = on average 0-30; and A (the ratio of the critical micelle concentration (cmc) of RO-(CH 2CH 2O) z(SO 3) ->M +> to the cmc of (I) >=1.