Oil based aqueous polyurethane dispersions

A two-pack coating composition comprising curing agents selected from the group consisting of non-blocked poly-functional isocyanates I, polyaziridines Z, and carbodiimides Y, and an aqueously dispersed polyurethane U wherein the polyurethane U comprises building blocks derived from hydroxyl group c...

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Bibliographische Detailangaben
Hauptverfasser: SCHAEUTLE MARKUS, ARZT ANTON, DELLINGER SUSANNE, PETRITSCH GERLINDE, GSOELL HANNELORE
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A two-pack coating composition comprising curing agents selected from the group consisting of non-blocked poly-functional isocyanates I, polyaziridines Z, and carbodiimides Y, and an aqueously dispersed polyurethane U wherein the polyurethane U comprises building blocks derived from hydroxyl group containing unsaturated fatty acids B21, a process for the production of the polyurethane U, and a method of use thereof in combination with the said curing agents in preparing coating compositions which are particularly useful for wood.