Ciba-Geigy Corporation

Ciba-Geigy Ag

Willy Bernheim

Hans Deiner

Bernhard Sandner

Franz Mosch

The present invention relates to a process for obtaining wash- and cleaning-resistant textile finishes by impregnating with customary reactive perfluoroalkyl-containing (co)polymers and/or precondensates in aqueous dispersion and concluding heating, wherein the dispersions have NCO-containing compounds which have a molecular weight of at least 450 and/or contain a diphenylmethane-based polyisocyanate mixture in blocked form. The process according to the invention has made it possible to equip textiles with water-repellant and oil-repellant finishes which are very highly wash- and cleaning-resistant.

Process for obtaining wash-and cleaning resistant textile finishes with

The present invention relates to new condensation products of

Process for the production of perfluoroalkyl residue containing

Process for making fibrous material water repellent by treating it with an aqueous bath containing (A) an emulsified organo polysiloxane with at least 2 hydroxyl groups optionally modified in a manner able to cross-link, (B) a non-ionic emulsion of poly silicic acid ester, (C) a reaction product which has been obtained by reaction of an organic compound containing at least one halohydrin and/or epoxy group with an organic compound containing hydrogen atoms bound to nitrogen, which in form of its salt is water-soluble or at least water-dispersible. The treated material is dried and optionally cured.

Process for making fibrous material water repellent

A process for the production of modified polymers, preferable in organic solvents, by radical-initiated polymerization of

Modified polysiloxanes and process of preparing them

The invention provides a process for the manufacture of addition products from nitrogen containing compounds which contain at least one ethylenically unsaturated radical and organopolysiloxanes which contain hydrogen atoms bonded to silicon, and a process for treating fibrous materials with the resultant addition product composition. The process comprises adding to the organopolysiloxanes allylmelamines, allylguanamines, monoallyl- or diallylureas, monoallyl- or diallylthioureas or cyclic urea derivatives which contain at least one ethylenically unsaturated radical. The addition is carried out in the presence of methylolated aminoplast formers which can also be etherified with lower alcohols, or in the presence of the cited unsaturated compounds in their methylolated form. The unsaturated compounds can also be used direct in methylolated and etherified form. The resultant addition products are used in an aqueous emulsion or an organic solvent for the treatment of fibrous materials. The treated materials are provided with a good wash-resistent water repellent finish.

Addition products of an N-allylamino-s-triazine and an organopolysiloxane

While good oil-repellency can be imparted to fibre materials by treating them with polymers containing perfluoralkyl groups, it is difficult to impart water-repellency to the fibre materials at the same time and also give the treated materials a good handle. This is achieved by treating the fibre materials with, besides the perfluoralkyl group-containing polymers, an addition product of a) an unsaturated compound which is an olefin, a vinyl or allyl ester of an aliphatic straight or branched chain acid, a vinyl ether whose alkyl radical has at least 4 carbon atoms, an allyl ether whose alkyl radical has at least 4 carbon atoms and/or a vinyl halide with b) an organopolysiloxane which contains hydrogen atoms bonded to silicon atoms, the addition product containing on average more than 7 carbon atoms in the alkyl radical and at least 0.20 mole of the unsaturated component a) per gram atom of hydrogen in the siloxane component b).

Method to make fibrous material oil and water repellent at the same time

New fluorine-containing organopolysiloxanes are provided which are obtained by reaction in known manner of organopolysiloxanes which contain hydrogen atoms bonded to silicon, a perfluoroalkyl compound for the formula

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Diedorf, Germany

Willy Bernheim