Dispersion stabilisation in aqueous coatings - latest developments in solsperse hyperdispersants

 
Paint and ink formulators face significant challenges in producing high performance coatings in water. Dispersing pigments in water is more challenging than solvent based systems as there is greater potential for self-assembly of the dispersant in the aqueous medium, which makes adsorption and wetting of the pigment surfaces difficult. In this presentation we will introduce our latest water-borne hyperdispersants.We have optimised their performance through the control of polymer architecture, molecular weight and nature of our anchor groups. We have developed novel hyperdispersants that are excellent at both wetting pigment surfaces and producing stable colorants for inks and paints. Our relentless development of new anchor group technology has enabled us to disperse a range of pigments including challenging organics, inorganics and high performance carbon blacks. Despite their water solubility, we have been able to develophyperdispersants with reduced impact on water or corrosion resistance.