| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve melt spinning of elastomeric fibers. Ž<P>SOLUTION: A spin pack assembly operative to receive a fluid thermoplastic material generally free of lumps therein, and to output a single fiber of the material, wherein the material reacts to form lumps therein generally within a reaction time after the material is received within the spin pack assembly, the assembly includes: a cylindrical body; an inlet; a spinneret plate; a cavity area within the body, wherein the cavity area is fluidly intermediate of the inlet and the fiber opening; and a breaker plate, wherein the breaker plate extends in the cavity area, and wherein the breaker plate includes a plurality of apertures therethrough, wherein each of the apertures is operative to provide material flow therethrough, and wherein the apertures are positioned to provide material flow through the cavity area such that a residence time that material is within the cavity area is less than the reaction time generally throughout the entire cavity area. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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