Tufted carpet including polyethyleneterephthalate bulked continuous filament
AssigneeHs Hyosung Advanced Materials Corporation
InventorsSeung Taek Oh, Moo Song Kim
Life of this patent
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Abstract
A polyethylene terephthalate bulked continuous filament is manufactured by steps of melt-spinning, multi-step stretching a polyethylene terephthalate chip and a master batch chip for coloring, passing through a texturing nozzle, cooling, and winding and has an elastic modulus of 1.00E+07 to 5.00E+09Pa at a temperature range of 10° C. to 200° C., the filament being manufactured by steps of melt-spinning a polyethylene terephthalate chip and a master batch chip for coloring, multi-step stretching, passing through a texturing nozzle, cooling, and winding.
Claims19
A polyethylene terephthalate bulked continuous filament made from a polyethylene terephthalate chip and a polyethylene terephthalate master batch chip for coloring comprising inorganic dyes or organic dyes,
- wherein the polyethylene terephthalate master batch is produced and has a lower weight average molecular weight compared to the polyethylene terephthalate chip,
- wherein the master batch chip for coloring is produced by injecting the inorganic dyes or organic dyes with a base polyethylene terephthalate chip and extruding the inorganic dyes or organic dyes and the base chip,
- wherein the polyethylene terephthalate bulked continuous filament has an elastic modulus in a dynamic mechanical analysis (DMA) of between 1.0E+07 and 5.0E+09 Pa in a temperature range of 10° C. to 200° C.,
- wherein a weight average molecular weight of the polyethylene terephthalate bulked continuous filament is 50,000 to 70,000, a molecular weight distribution (PDI) of the polyethylene terephthalate bulked continuous filament is 1.6 to 2.0,
- wherein a diethylene glycol (DEG) content of the polyethylene terephthalate bulked continuous filament is equal to or less than 1.2 wt %, and
- wherein a diameter of the polyethylene terephthalate bulked continuous filament is 6 to 20 dpf.
A polyethylene terephthalate bulked continuous filament made from a polyethylene terephthalate chip and a polyethylene terephthalate master batch chip for coloring comprising inorganic dyes or organic dyes,
- wherein the colored polyethylene terephthalate bulked continuous filament has an elastic modulus in a dynamic mechanical analysis (DMA) of between 1.0E+07 and 5.0E+09 Pa in a temperature range of 10° C. to 200° C.,
- wherein the polyethylene terephthalate comprises units derived from ethylene glycol and terephthalic acid and one or more ester-forming components selected from the group consisting of 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, isophthalic acid, hexahydroterephthalic acid, stilbene dicarboxylic acid, bibenzoic acid, adipic acid, sebacic acid, and azelaic acid,
- wherein a weight average molecular weight of the polyethylene terephthalate bulked continuous filament is 50,000 to 70,000,
- wherein a molecular weight distribution (PDI) of the polyethylene terephthalate bulked continuous filament is 1.6 to 2.0,
- wherein a diethylene glycol (DEG) content of the polyethylene terephthalate bulked continuous filament is equal to or less than 1.2 wt %, and
- wherein a diameter of the polyethylene terephthalate bulked continuous filament is 6 to 20 dpf.
Dependencies are inferred from the claim text.