Extrusion processability of non-fluorinated melt-processable polymers is improved by introducing a fluoropolymer process aid by means whereby the weight average particle size of the fluoropolymer is greater than 2 microns as it reaches the extruder die entrance.

 
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< Apparatus and methods for managing molds and forming transverse corrugations and other shapes in extruded tubular polymer melt parisons

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> Optical system production system

> Cooling apparatus having low profile extrusion and method of manufacture therefor
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