POLYURETHANE DISPERSION WITH KETONE FUNCTIONALITY

• Main Authors: GRIMSHAW, Georgina, BARRATT, John, BYRNE, Michael, ROUND, Michelle
• Format: Patent
• Language: English; French; German
• Published: 20.11.2024
• 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 subject of the invention is a waterbased anionic polyurethane dispersion with incorporated ketone groups of the formula (I), suitable for the use in a waterbased self-crosslinking composition in combination with a polyhydrazide crosslinker. The inventive polyurethane dispersion is easy to prepare and allows one-component coating compositions of low toxicity and low emission, with good storage stability, good curing properties at ambient conditions, high hardness, high scratch resistance, a low dirt pick-up and a good water resistance, particularly suitable for the sealing of floors or as topcoat in a floor coating system.