Abstract: There is described a process for producing a particulate composition comprising the steps of:

Abstract: There is described a process for producing a particulate composition comprising the steps of: (a) forming a first dispersion comprising first particles stabilized in a first fluid by first species; (b) optionally the step of forming a second dispersion comprising second particles stabilized in a second fluid, miscible with the first fluid, by second species; (c) after (or simultaneously with) the optional step of mixing the first and second dispersions together if the second dispersion was formed from step b); inducing association between the dispersed particles to form clusters; and (d) binding together the particles within the clusters; characterized in that the first and/or second particles comprise at least one polar functional group to facilitate the binding of the particles in step (d).

Abstract: There is described a process for producing a particulate composition comprising the steps of: (a) forming a first dispersion comprising first particles stabilised in a first fluid by a first species in an initial state, the first species changeable between the initial state and a further state, where the initial state provides (directly or indirectly) more stability to the particles within the dispersion than the further state; (b) optionally the step of forming a second dispersion comprising second particles stabilised in a second fluid, miscible with the first fluid, by a second species in the, or another, initial state, the second species also changeable between the, or another ,initial state and the, or another, further state, where said initial state provides (directly or indirectly) more stability to the particles within the dispersion than said further state; (c) after the optional step of mixing the first and second dispersions together if the second dispersion was formed in step b), changing the s

Abstract: Method of grafting a water-soluble organic oligomer(s) to an organic polymer(s) in aqueous latex form, which method comprises forming a water-based mixture of a water-soluble oligomer(s), an aqueous latex of a polymer(s), and at least one free radical polymerisable monomer, both of said oligomer(s) and polymer(s) being preformed, and carrying out free radical polymerisation of said at least one monomer to effect grafting between said oligomer(s) and said polymer(s).