Reaktive Zusammensetzung aus einer Uretdiongruppen haltigen Dispersion und Polyaminen

• Main Authors: BRÜCKNER, IRIS, BÜSCHER, SVEN, SCHÜLLER, JESSIKA, SPYROU, EMMANOUIL, STACHE, WIEBKE
• Format: Patent
• Language: German
• Published: 19.11.2015
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WOODSTAINS

Die Erfindung betrifft eine reaktive Zusammensetzungen bestehend aus einer wässrigen Uretdiongruppen haltigen Polyurethan-Polyharnstoff-Dispersion mit speziellen internen Emulgatoren und Di- oder Polyaminen und deren Verwendung als Ausgangskomponente bei der Herstellung von Polyurethan-Kunststoffen, insbesondere für wasserlösliche oder wasserdispergierbare Lack-, Klebstoff- oder Dichtstoffbindemittel oder Bindemittelkomponenten. A reactive composition contains A) an aqueous polyurethane-polyurea dispersion containing an uretdione group and having an internal emulsifier, the emulsifier having at least one ionogenic group which, in the case of an acidic ionogenic group, has a pKa in water of >8 at room temperature or, in the case of a basic ionogenic group, has a pKb of >8 at room temperature, B) at least one diamine and/or polyamine, wherein a ratio of a latent NCO group in the polyurethane-polyurea dispersion A) containing an uretdione group to the amine groups in component B) is from 4:1 to 1:1, and C) optionally, at least one member selected from the group consisting of an auxiliary, an adjuvant and a catalyst.