SYNTHETIC MATERIAL DISPERSIONS

摘要

The invention relates to synthetic material dispersions consisting of (a) an aqueous phase of solutions of hydrophilic melamine resin precondensates and a latent hardening catalyst in water or in mixtures of water and alcohols C1-C 6, (b) an organic nanophase in the form of nanometric droplets and/or nanoparticles derived from 70-99 % of the melamine resin precondensates whic h are insoluble in water and etherifieds and contain hardening acid catalysts and acid impermiability agents, (c) dispersion agents at a concentration of 1- 10 mass % in relation to the total mass of the melamine resin precondensates . The ratio between the hydrophilic melamine resin precondensates and the wate r and etherifieds-insoluble melamine resin precondensates ranges from 10:1 to 1:10, the water content in the inventive synthetic material dispersions ranging from 8 and 50 mass %. Said synthetic material dispersions are used f or producing flat coated products which are externally used in the form of laminates, of coated flat carrying materials or moulded coated bodies for construction or for sports and recreation.