Finely particulate composite latices and use thereof in solvent-free paints

Abstract From the Canadian patent

Finely particulate composite latices free of non-polymeric surfactants and solvents may be prepared by the radical polymerisation of mixtures of hydrophobic monomers e.g. styrene and an acrylic ester in emulsion in a solution of a low molecular weight copolymer such as a styrene/maleic anhydride copolymer. Said latices have a wide variety of uses e.g. in leather processing; paints and surface coatings for wood; paints and particularly solvent-free paints for concrete cement, plaster, roof tiles and metals; overprint inks and varnishes; adhesives for floor tiling; cement and mortar admixtures; non-pigmented coatings for leather wood, metals and plastics; and paper sizing agents.