Ausimont

Larac S.p.a.

Raffineria Olii Lubrificanti 'r.o.l' S.p.a.

Tiziana Gambini

Ignazio Zavatteri

Aldo Trovati

Cesare Prelini

Vittorio Stefanoli

Aqueous dispersions of fluorinated polyurethanes obtained by the reaction of an organic diisocyanate with a mixture of diols containing ionizable groups and macroglycols comprising polyols and at least 1% by weight of one or more hydroxy- and/or carboxy-capped fluoropolyethers. Said fluorinated polyurethanes are salified, to transform the ionizable groups into hydrophilic cations and/or anions, and are then dispersed in water to be used in textile coatings.

Aqueous dispersions of fluorinated polyurethanes and their use for

Process for improving the dyeability of woven or non-woven textiles by treating them with an aqueous dispersion of polyurethanes containing in the macromolecule randomly distributed cationic groups, such as ammonium, in quantity between 15 and 100 milliequivalents for 100 grams of dry polyurethane, said treatment being carried out before dyeing.

Process for improving the dyeability of woven or non-woven textiles:

Growing community of inventors

Castellanza, Italy

Tiziana Gambini