SALZE VON SULFONIERTEN ESTERN VON DICARBONSAEUREN MIT UNGESAETTIGTEN FETTALKOHOLEN BZW. -ALKOXYLATEN, VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG ALS OBERFLAECHENAKTIVE MITTEL

摘要

Salts of sulphonated esters of dicarboxylic acids with unsaturated fatty alcohols or with addition reaction products of ethylene oxide and/or propylene oxide with unsaturated fatty alcohols, obtained by sulphonation of dicarboxylic acid esters of general formula (I): R<1>O-(CmH2mO)n-CO-A-CO-(OCpH2p)q-OR<2>, where A is a vinylene or ethylene group; R<1> is a straight-chain alkenyl group with 16 to 22 carbon atoms; R<2> is hydrogen, an alkyl group with 1 to 22 carbon atoms or a straight-chain alkenyl group with 16 to 22 carbon atoms; n and q are each numbers ranging from 0 to 20; m and p are each the number 2 and/or 3, with sulphur trioxide in a molar ratio of sulphur trioxide to the double bonds present in the alkenyl groups of 0.5 to 1.8:1, in particular 0.6 to 1.5:1, and neutralization of the sulphonation products with bases. Said compounds have attractive surfactant properties.