Cassella Aktiengesellschaft

Hoechst Aktiengesellschaft

Kurt Rosenbusch

Karl-Heinz Keil

Volker Kohler

Gustav Hudec

Joachim Ribka

Merten Schlingmann

An agent for conditioning and imparting water repellency to leather comprises a homogeneous mixture of

Process for the preparation of aqueous emulsions, stable in storage, of

Phospholipids which are obtained within the framework of protein synthesis from fermentatively produced constituents of micro-organisms may be used, following a conversion into a water-dilutable form, for example by emulsification or by a chemical modification, such as saponification or sulfonation, as greasing agents for the greasing of leather and fur skins. In this capacity they are superior to vegetable and animal phospholipids.

Process for the greasing of leather and fur skins

Conditioning and water-repellent compositions containing agents for cellulose-containing textiles or leather comprising sulphonylureas of the formula ##STR1## wherein R is alkyl or alkenyl having 10-30 carbon atoms; B is a member selected from the group comprising ##STR2## wherein R.sup.1 is alkyl having 1-4 carbon atoms, R.sup.2 is hydrogen or alkyl having 1-4 carbon atoms and n is 2, 3 or 4;

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Frankfurt am Main, Germany

Kurt Rosenbusch