METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT FROM RECYCLED PET
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United States of America Patent
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Issued Date -
May 16, 2024
app pub date -
Jan 19, 2024
filing date -
May 31, 2012
priority date (Note) -
Published
status (Latency Note)
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Abstract
A method of manufacturing bulked continuous carpet filament that includes providing a polymer melt and separating the polymer melt from the extruder into at least eight streams. The multiple streams are exposed to a chamber pressure within a chamber that is below approximately 25 millibars, or another predetermined pressure. The streams are recombined into a single polymer stream. Polymer from the polymer stream is then formed into bulked continuous carpet filament.
First Claim
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International Classification(s)
- C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
- D01D:MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE....
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- B29D:PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FRO....
- B29B:PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE ....
- D01F:CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL....
- D02G:CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR T....
- B01D:SEPARATION
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