Aqueous dispersions of fluorinated polyurethanes and their use f

Details Aqueous dispersions of fluorinated polyurethanes and their use f Aqueous dispersions of fluorinated polyurethanes and their use f

1990-10-12

1991-11-26

Kight, III, John

Coating processes

Immersion or partial immersion

Cellulosic base

4274301, 4274342, 524539, 81156, B04J 305

Patent

active

050681354

ABSTRACT:
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.

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