Patent ID: 11926930
Assignee: ALADDIN MANUFACTURING CORPORATION
Field: Other special machines (Mechanical engineering)
Classification: CPC D  B | IPC B  C  D

Claim 7:
8. A method of manufacturing bulked continuous carpet filament from polytrimethylene terephthalate (PTT), the method comprising:
providing an extruder;
using the extruder to at least partially melt the PTT into a polymer stream and at least partially purify the polymer stream;
providing a static mixing assembly comprising an axial direction downstream of the extruder;
adding a first molten polymeric masterbatch to a center of the polymer stream at a first location along the axial direction before the static mixing assembly or along a length of the static mixing assembly between an upstream end and a downstream end of the static mixing assembly;
adding a second molten polymeric masterbatch to the polymer stream at a second location along the axial direction before the static mixing assembly or along the length of the static mixing assembly between an upstream end and a downstream end of the static mixing assembly;
using the static mixing assembly to mix the polymer stream with the first molten polymeric masterbatch and the second molten polymeric masterbatch to create a colored polymer stream; and
forming the colored polymer stream into bulked continuous carpet filament.