The present invention relates to a system and a method for cooling extruded and molded materials. The present invention is especially useful to thoroughly cool an extrudate by directing a cooling fluid toward a surface of the extrudate (e.g., an interior surface that defines a hollow portion of an extrudate)....http://www.google.es/patents/US7017352?utm_source=gb-gplus-sharePatente US7017352 - Cooling of extruded and compression molded materials
Cooling of extruded and compression molded materials
