Stockhausen Gmbh & Co Kg

Chemische Fabrik Stockhausen Gmbh

Horst Kilian

Kurt Dahmen

Richard Mertens

Helmut Brehm

Jochen Houben

Manfred Kaussen

Helmut Lohmann

Thomas Muller

The present invention relates to alkoxy-groups-containing copolymers of a) 1 to 99%-wt. water soluble ethylenically unsaturated, acid-groups-containing monomers, b) 1 to 50%-wt. monomers having a polyalkoxy sequence and c) 0 to 60%-wt. water soluble monomers which are copolymerizable with a) and b); and to the use of said copolymers for retanning leathers previously tanned by a mineral or combined method. The leathers treated with the retanning agents according to the invention in particular stand out for an improved fullness and good grain tightness. The acid groups of monomers a) preferably are carboxyl groups.

Alkoxy group containing copolymers and their use in retanning leather

Use of copolymers having polysiloxane units in the treatment of leather

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Krefeld, Germany

Horst Kilian