Ciba-geigy Corporation

Ciba Specialty Chemicals Corporation

Huntsman Textile Effects (germany) Gmbh

Simpert Ludemann

Michael Bernheim

Erich Rossler

Bernhard Sandner

Jurgen Riedmann

Hans-Burkhardt Vogel

Rule Niederstadt

Hans-Peter Rohring

Daniel Wilson

Polyolefin fiber fabrics can be endowed with oil-repellent properties by treating them first in a plasma atmosphere to raise their surface tension, then with a polyorganosiloxane containing polyoxyalkylene groups and finally with a polyacrylate or polyurethane containing perfluoroalkyl radicals. The fabrics thus obtained are useful for medical as well as other applications.

Oleophobic polyolefin fiber materials

Creases with excellent resistance to washing processes can be produced in 30 to 100% by weight wool fabrics by means of a specific process. The fabrics are preferably in the form of garments; the process can be used to produce trouser creases, for example. The process consists in applying at least one compound having isocyanate groups to the fabric and pressing creases into the fabric under certain moisture and temperature conditions.

Processes for creasing moist wool fabrics

Modified polyurethanes containing perfluoroaliphatic groups which are obtained by reacting oligo(poly)urethanes containing free hydroxyl or isocyanate groups and perfluoroaliphatic groups with di/polyfunctional polysiloxanes at elevated temperatures with conversion of all the reactive groups of the urethane are used for the oil- and water-repellent finishing of fiber materials, conferring on these materials thus treated not only laundering- and drycleaning-stable effects but also in particular a very soft, full hand of very good surface smoothness, these excellent hand effects being further optimized by the addition of a polyethylene dispersion and/or of further customary textile assistants, in particular water-repellent fluorocarbon compounds.

Modified polyurethanes containing perfluoroaliphatic groups and use

Modified polyurethanes containing perfluoroaliphalic groups which are obtained by reacting oligo(poly)urethanes containing free hydroxyl or isocyanate groups and perfluoroaliphatic groups with di/polyfunctional polysiloxanes at elevated temperatures with conversion of all the reactive groups of the urethane are used for the oil- and water-repellent finishing of fiber materials, conferring on these materials thus treated not only laundering- and drycleaning-stable effects but also in particular a very soft, full hand of very good surface smoothness, these excellent hand effects being further optimized by the addition of a polyethylene dispersion and/or of further customary textile assistants, in particular water-repellent fluorocarbon compounds.

The present invention contains a process for manufacturing a water-soluble, self-crosslinking, polymeric condensation product by reacting 1 mole di-C.sub.1-4 -alkylamino-C.sub.24 alkyl(meth)acrylates with 0.3 to 1.5 mol di-C.sub.1-3 -alkyl-phosphonates in the presence of water under heating up to a remarkable increase of the viscosity. If aqueous solutions of these condensation products are used for the treatment of fibrous materials, a very high antistatic effect is imparted to them with only small changes of shade and a very good dry- and wet rubbing fastness as well as water-fastness. The effects show a good permanency.

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Bobingen, Germany

Simpert Ludemann