Henkel & Cie G.m.b.h.

Wilfried Umbach

Werner Stein

Horst Baumann

Christian Gloxhuber

Rainer Osberghaus

Siegfried Braig

The present invention relates to compositions for the treatment of the skin containing up to 25% by weight of at least one polymer having carboxyl or carboxylate groups and hydroxyl groups of chiefly rectilinear or cross-linked C--C compounds, the ratio of carboxyl or carboxylate groups to hydroxyl groups in said polymer being in excess of 0.5:1, and particularly between 1.1:1 and 16:1, preferably between 2:1 and 9:1, and the polymerization degree being at least 3, preferably 3 to 300; as well as the method of skin treatment.

Skin treating agent containing polyhydroxypolycarboxylate polymers and

This invention relates to an improvement in the process of alkoxylation of compounds containing alcoholic hydroxyl groups by reacting compounds containing hydroxyl groups with alkylene oxides in the presence of alkoxylation catalysts. The said improvement involves the use of a tertiary oxonium salt with a substantially non-polarizable halogeno-complex anion as the said alkoxylation catalyst. Use of such catalysts gives lower amounts of unreacted alcohols in the products, particularly when secondary alkanols of 8 to 24 carbon atoms are employed.

Process for the alkoxylation of compounds containing alcoholic hydroxyl

A process for the production of secondary alcohol ether sulfates which consists essentially of reacting adducts of secondary alkanols having from 6 to 22 carbon atoms adducted with 1 to 10 mols of an alkylene oxide selected from the group consisting of ethylene oxide and propylene oxide, said adduct having at least 1 mol of oxypropylene per mol of alcohol, with at least a molecular equivalent of a sulfating agent stronger than concentrated sulfuric acid at temperatures of from 0.degree.C to 50.degree.C and recovering said secondary alcohol ether sulfate.

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Langenfeld, Germany

Wilfried Umbach