Covestro Deutschland Ag

Ingo Gipperich

Michael Ludewig

Thomas Feller

Thomas Michaelis

Hans Georg Grablowitz

Sebastian Doerr

Tanja Hebestreit

Martin Kreuter

Petra Janßen

Hans-Georg Grablowitz

Petra Janssen

The present invention relates to an aqueous polyurethaneurea dispersion, wherein the polyurethaneurea has specific formation components, and which is characterized in that it has a content of &#x2014;COOH groups of at least 0.75% by weight, where 0% to 35% of these groups have been neutralized, and in that 5 to 50 mol % of isocyanate groups present have been reacted with a monofunctional component. The invention further relates to the use of this dispersion as coating composition, to a fiber having a cured coating and to a composite material.

Aqueous polyurethaneurea dispersion containing free acid groups

The present invention relates to an aqueous blocked polyurethaneurea dispersion which is obtainable by reacting at least one polyisocyanate, one blocking agent for isocyanate groups, one polyamine having at least one carboxyl and/or carboxylate group, and water. Additionally provided by the invention are a coating composition comprising the aqueous blocked polyurethaneurea dispersion, the use of the aqueous blocked polyurethaneurea dispersion or of the coating composition for producing a coating, a coating obtainable using the aqueous blocked polyurethaneurea dispersion or the coating composition, and a method for producing the aqueous blocked polyurethaneurea dispersion.

Aqueous blocked polyurethane-urea dispersion

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Leverkusen, Germany

Ingo Gipperich