Bayer Aktiengesellschaft

Peter Nussbaum

Hans-Albert Ehlert

Helmut Reiff

Karl-Heinz Passon

Manfred Schmidt

Walter Meckel

Wolfgang Henning

Wilfried Kortmann, Deceased

Peter Selinger

The invention relates to a blocked polyisocyanate having an NCO functionality of from 2.2 to 4.5 and an average molecular weight of 800 to 25,000 and containing (1) blocked isocyanate groups corresponding to an NCO content of 5 to 20 wt. % calculated as free NCO, relative to unblocked polyisocyanate, (2) 1 to 75 meq of ionic groups per 100 g of blocked polyisocyanate, and (3) 3 to 40 wt. % of polyalkylene oxide units relative to the blocked polyisocyanate prepared by the reaction of

Water-dispersible blocked isocyanates, method of manufacture, and use

Phobicity effects of high quality and permanence are obtained on textile materials of the most diverse types if these are finished with combinations of

Hydrophobizing and oleophobizing compositions

The present invention relates to water-dispersible polyetherester-modified polyurethane ionomers containing 10 to 100 milliequivalents of ionic, preferably cationic, groups per 100 g of ionomer; 2 to 40% by weight of polyetherester groups; and 1 to 35% by weight of ethylene oxide units, in which the percentages are based on the weight of the polyetherester-modified polyurethane ionomer. The present invention also relates to a process for the preparation of these polyetherester-modified polyurethane ionomers and to aqueous compositions containing these polyetherester-modified polyurethane ionomers and polymers containing perfluoralkyl groups.

Water-dispersible, electrolyte-stable polyetherester-modified

Growing community of inventors

Leverkusen, Germany

Peter Nussbaum