Aqueous blocked polyurethaneurea dispersion

• Main Authors: GRABLOWITZ, HANS GEORG, HEBESTREIT, TANJA, GIPPERICH, INGO, MICHAELIS, THOMAS, FELLER, THOMAS
• Format: Patent
• Language: Chinese; English
• Published: 16.03.2014
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

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. Addition-ally 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.