Th. Goldschmidt Ag

Stefan Busch

Dietmar Schaefer

Peter Lersch

Dietmar Wewers

Polysiloxanes of the general formula ##STR1## which contain at least one sulfatohexyl group linked by an Si--C bond are prepared wherein R.sup.1 is a methyl or phenyl group with the proviso that at least 90% of the R.sup.1 groups are methyl groups, R.sup.2 either is identical with R.sup.1 or is --(CH.sub.2).sub.6 --OSO.sub.3.sup.-.M.sup.+, M.sup.+ being an alkali, 1/2 alkaline earth or optionally an alkyl-substituted ammonium ion, R.sup.3 is identical with R.sup.1 or R.sup.2, with the proviso that at least one R.sup.2 or R.sup.3 group in the average molecule is a --(CH.sub.2).sub.6 --OSO3.sup.-.M.sup.+ group, 'a'=0 to 5 and b=0 to 5. A method for the synthesis of these compounds and their use as hydrolysis-resistant surfactants is also described.

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Essen, Germany

Stefan Busch