NITROFUNCTIONAL POLYURETHANE DISPERSIONS FOR BINDER COMPOSITIONS

• Main Authors: GREYSON, ERIC C, TANG, JIA, FU, ZHENWEN, HEJL, ANDREW, GREEN, GEORGE D, BRUTTO, PATRICK E
• Format: Patent
• Language: English; French
• Published: 22.09.2020
• Subjects: 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; 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

Provided is a binder composition and its use in aqueous based paints and coatings and other applications. The binder composition comprises: a polyurethane dispersion containing water and a polyurethane polymer, wherein the polyurethane polymer is prepared by reacting a nitroalcohol compound, a polyol compound, a polyisocyanate compound, and optionally chain extenders, wherein the nitroalcohol compound is of formula I, wherein R, R1, and Z are as defined herein. L'invention concerne une composition de liant et son utilisation dans des peintures et des revêtements à base aqueuse et d'autres applications. La composition de liant comprend : une dispersion de polyuréthane contenant de l'eau et un polymère de polyuréthane, le polymère de polyuréthane étant préparé par réaction d'un composé nitroalcool, d'un composé polyol, d'un composé polyisocyanate et facultativement d'agents d'allongement de chaîne, le composé nitroalcool étant de formule I, dans laquelle R, R1 et Z sont tels que définis dans la description.