BLENDING DEVICE FOR CO-EXTRUDING MULTILAYER FILM LAMINATE HAVING AT ONE LEAST COLORED IONOMERIC LAYER AND AT LEAST ONE ADDITIONAL LAYER BONDED THERETO

摘要

A screw (10) for use in a plasticizing device including a shaft (14) extending longitudinally between a feed end and a discharge end (16) positionable in a blending chamber and at least one thread (12) helically positioned on at least one region of the shaft projecting outward therefrom deforming at least one region of low shear melt blending in the blending chamber.