The Polymer Processing Institute has the responsibility for the coextrusion line at New Jersey Institute of Technology (NJIT). This sevenlayer coextrusion pilot line, which PPI is currently operating, consists of two 2.5" single-screw extruders and two 1.25" single-screw extruders. The line is complete with one master drier and two satellite driers that are mounted on the two 2.5" extruders. Vacuum loaders, airtight transfer lines, and automatic controllers are used for drying moisture-sensitive materials in the main drier and feeding these materials to the satellite driers.
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