Patent ID: 8450429

Claim:
A process for producing pelletized brominated styrenic polymer, which process comprises: feeding an admixture of extrudable viscosity comprising brominated styrenic polymer and a vaporizable solvent into a devolatilization extruder that is adapted and operated to separate vaporizable solvent from said polymer and form as extrudate a polymer melt or polymer flow of said polymer; having the extrudate pass through a die to thereby form one or more traveling strands of molten unadulterated brominated styrenic polymer; and pelletizing such strands by enabling and/or causing such traveling strand(s) to solidify and be broken, subdivided, or otherwise converted into pellets of the brominated styrenic polymer; and subjecting the pellets to size classification to remove and recover from such product (a) oversized particles, if any, and (b) fines, if any, that may be present in such product.