Patent ID: 7317060

Claim:
A process for the production of copolymers, comprising copolymerizing an aqueous suspension of pentabromobenzyl acrylate (“PBBMA”) with at least one monomer, wherein said aqueous suspension of PBBMA comprises PBBMA in the form of finely ground particles having a size smaller than 50 μm and further at least one suspending agent chosen from the group consisting of xanthan gums, anionic purified suspending agents, nonionic purified suspending agents, sodium modified montmorillonite, naphthalene sulfonic acid-formaldehyde condensate sodium salt, sodium salts of sulfonated lignin, calcium salts of sulfonated lignin, ammonium salts of sulfonated lignin, and acrylic acids/acrylic acids ester copolymer neutralized-sodium polycarboxyl, and a wetting agent selected from the group consisting of alkyl naphthalene sulfonates or their sodium salts, alkyl ether, alkylaryl ether, fatty acid diester and sorbitan monoesters, and polyoxyethylene (POE) compounds.