Patent ID: 7252493
Filing Date: 2007-08-07
Classification: D01D

Abstract:
1. A temperature control system for use in a fiber extrusion process comprising: a plurality of metering pump assemblies to receive a plurality of molten polymer streams from at least one polymer supply source that is connectable to the system, each metering pump assembly including a pump chamber and a pump disposed within the pump chamber, wherein the pump of each metering pump assembly includes an inlet to receive a molten polymer stream from the at least one polymer supply source and a plurality of outlets to direct molten polymer from each metering pump; and a plurality of flow path sets disposed downstream from the metering pump assemblies, each flow path set being aligned with a respective metering pump and including a plurality of flow paths configured to receive molten polymer from the plurality of outlets of the respective metering pump and to deliver the molten polymer to a spinneret; wherein each flow path set is spaced a selected distance from the other flow path sets so as to facilitate independent control of the temperature of a molten polymer flowing through each flow path set.