Montedison S.p.a.

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

Resem, S.p.a.

Aldo Trovati

Franco Federici

Ennio Cozzi

Tiziana Gambini

Giorgio Pin

Vittorio Stefanoli

Cesare Prelini

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:

High-functionality compositions based on fluorinated and silanized polyisocyanates, prepared by reacting a hydroxy-terminated perfluoropolyether having an average molecular weight ranging from 500 to 7000 and a silico-carbinol having an average molecular weight ranging from 500 to 7000, with an organic diisocyanate and a polyol having a functionality of at least 3. Varnishes containing said compositions based on fluorinated and silanized polyisocyanates, having a high functionality.

High-functionality compositions based on fluorinated and silanized

A process for producing stable aqueous dispersions of polyurethanes, which comprises reacting a mixture of a diol containing an ionizable group and a polyol-polyester or polyol-polyether, with an aromatic, or cycloaliphatic or aliphatic isocyanate, to form a prepolymer having terminal isocyanic groups, then reacting this last with a hydroxy-alkyl-(meth)acrylate to obtain an oligourethane having unsaturated terminal groups, and finally dispersing said oligourethane in water and polymerizing it in the presence of radicalic catalysts.

Aqueous dispersions of polyurethanes from oligo urethanes having

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Novara, Italy

Aldo Trovati