Polysiloxanes with at least one sulfatohexyl group linked by an

Details Polysiloxanes with at least one sulfatohexyl group linked by an Polysiloxanes with at least one sulfatohexyl group linked by an

1992-12-09

1994-01-25

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

556428, C08G 7704

Patent

active

052816877

ABSTRACT:
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.

REFERENCES:
patent: 3412129 (1968-11-01), Holdstock
patent: 4342742 (1982-08-01), Sebag et al.

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