AQUEOUS DISPERSION OPACIFYING PIGMENT-BINDER HYBRID POLYMER PARTICLES

• Main Authors: ZHANG, Qing, VAN DYK, Antony K, DEROCHER, Jonathan
• Format: Patent
• Language: English; French
• Published: 17.03.2022
• 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 BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED 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 a composition comprising an aqueous dispersion of opacifying pigment-binder hybrid polymer particles and a dispersant functionalized with a sulfur acid monomer absorbed to opacifying pigment particles. The composition of the present invention is useful for improving wet-hide performance in paints. La présente invention concerne une composition comprenant une dispersion aqueuse de particules polymères hybrides liant-pigment opacifiant et un dispersant fonctionnalisé avec un monomère d'acide soufré absorbé dans des particules de pigment opacifiant. La composition selon la présente invention est utile pour améliorer le pouvoir couvrant humide des peintures.