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Methods for manufacturing bulked continuous filament

  • US 10,532,496 B2
  • Filed: 05/03/2019
  • Issued: 01/14/2020
  • Est. Priority Date: 05/31/2012
  • Status: Active Grant
First Claim
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1. A method of manufacturing bulked continuous carpet filament, the method comprising:

  • providing a polymer melt from an extruder to a chamber;

    separating the polymer melt from the extruder into at least eight streams such that each stream is at least partially exposed to an interior of the chamber and such that a respective surface area of each of the at least eight streams is exposed to a chamber pressure within the chamber, the chamber pressure being below about 5 millibars;

    after the at least eight streams are exposed to the chamber pressure, recombining the at least eight streams into a single polymer stream; and

    forming polymer from the single polymer stream into bulked continuous carpet filament.

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