Modified polyurethanes containing perfluoroaliphatic groups and

Details Modified polyurethanes containing perfluoroaliphatic groups and Modified polyurethanes containing perfluoroaliphatic groups and

1989-01-25

1991-05-28

Lusignan, Michael

Coating processes

With post-treatment of coating or coating material

Heating or drying

4273934, 428266, 528 28, 528 38, 528 41, B05D 302

Patent

active

050194283

ABSTRACT:
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.

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patent: 4098742 (1978-07-01), Mueller
patent: 4421783 (1983-12-01), Marwitz
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patent: 4469840 (1984-09-01), Alberts
patent: 4559056 (1985-12-01), Leigh
patent: 4739013 (1988-04-01), Pinchuk
patent: 4748215 (1988-05-01), Lindner
patent: 4839443 (1989-06-01), Akutsu et al.
patent: 4851176 (1988-07-01), Christiansen
patent: 4873306 (1989-10-01), Wehowsky

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