Ciba Specialty Chemicals Corporation

Huntsman International LLC

Huntsman Textile Effects (germany) Gmbh

Simpert Lüdemann

Wilhelm Artner

Edeltraud Schidek

Rolf Moors

Heinz Gaugenrieder

Franz Dirschl

Rule Niederstadt

Andreas Eisele

Thu Thao Reimann-Dang

Daniel Wilson

Jürgen Riedmann

The use is described of aqueous dispersions in combination with fluoropolymers for oil- and water-repellent finishing of fiber materials. These dispersions have a long shelf life and contain a composition which is preparable by reaction of polyfunctional isocyanates with a deficiency of comparatively long-chain monohydric alcohols, subsequent reaction with a deficiency of a ketone oxime and final reaction with polyhydric alcohols or amino alcohols.

Extender for treatment of fiber materials

Fiber materials in the form of fabrics receive, as a result of treatment with compositions according to the invention, a pleasant soft hand and excellent oil-and water-repelling properties with good permanence. The compositions can be obtained by a) preparing a solution of a polysiloxane and an extender with blocked isocyanate groups in an organic solvent, b) dispersing this solution in water, c) removing the organic solvent and d) combining the aqueous dispersion obtained with a second aqueous dispersion which comprises a polymer with perfluoroalkyl groups. One variant of this preparation process consists in cousing a polymer with perfluoroalkyl groups as early as in step a). In this case, step d) can be omitted.

Compositions of polysiloxanes, fluoropolymers extenders

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Bobingen, Germany

Simpert Lüdemann