Patent ID: 6531254
Filing Date: 2003-03-11
Classification: C08J,G03G

Abstract:
A process for producing a particulate composition comprising the steps of:(a) forming a first dispersion comprising first particles stabilised in a first fluid; (b) forming a second dispersion comprising second particles which comprise hydroxy groups directly bonded to the surface by forming part of a hydroxy functionalised copolymer, which comprises from 0.1 wt % to 10 wt % of a hydroxy-functional monomer from which copolymer the particles are formed which particles do not contain acidic or basic polar groups and which are stabilised in a fluid, miscible with the first fluid; (c) mixing the first and second dispersions together; (d) inducing association between the dispersed particles to form clusters; and (e) binding together the particles within the clusters by raising their temperature to effect fusion.