Solid-State Shear Pulverization: Chilled Extrusion Technique for Value-Added Plastics Processing and Polymer-Based Materials Development discusses solid-state shear pulverization (SSSP) and solid-state/melt extrusion (SSME), both unconventional polymer processing methods that are based on twin screw extrusion. The technology was originally employed to produce reduced particle size of polymeric materials, but recently has been successfully applied to mechanochemically modify plastics, fabricate polymer blends and nanocomposites on a commercially-scalable level.