Two piece die assembly for extruding micro-filaments

Claim 1

A die adapted for the simultaneous extrusion of a plurality of longitudinally aligned filaments, said die comprising: A. a pair of mating sections, each section being formed of metal, said sections defining together in an assembled configuration a longitudinally elongated assembly, B. said assembly defining exteriorly a pair of opposed, tapered die faces, one on each of said halves, said faces mating to define an angular edge portion, C. said assembly further defining therewithin a centrally disposed, longitudinally elongated chamber rearwardly opening, forwardly laterally tapered in said assembly, a portion of said chamber being in each of said sections, D. said assembly still further defining therewithin a plurality of longitudinally spaced, generally vertically extending channels, each channel extending between said chamber and said edge portion, each channel having an average cross sectional area along its length ranging from about 6.4 X 10 5 to 4.8 X 10 4 square inches, and E. a peripheral layer of bonding material between said sections bonding together said section in said assembled configuration located in opposed, abutting side regions therebetween and in abutting edge regions therebetween vertically between said channel and said forward edge portion and between said channels.