Pharmaceutical grade extruder

The pharmaceutical BFS process combines the formation of plastic containers by blow/vacuum molding extruded pharmaceutical grade polymers, with an aseptic solution filling system. 

Pa sec. This is feasible for certain polymers like polyethylene oxides (PEO), polyethylene glycols, waxes and polyvinyl caprolactam-polivinyl acetate-polyethylene glycol (Soluplus ) for both single and twin types of extruders but not for polymers with high T or melt viscosity like acrylic, methacrylic and methacrylate copolymers and also for polyvinylpyrrolidone grades at the extrusion temperatures normally employed for pharmaceuticals between 100-180"C, for which the use of plasticizers described in the following section is imperative for smooth extrusion. 

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