Textiles: spinning – twisting – and twining – Strand structure – Multifilament yarns
Reexamination Certificate
2005-03-22
2005-03-22
Calvert, John J. (Department: 3765)
Textiles: spinning, twisting, and twining
Strand structure
Multifilament yarns
Reexamination Certificate
active
06868662
ABSTRACT:
The invention provides an entangled continuous filament yarn comprising at least two bicomponent filaments each comprising poly(trimethylene terephthalate) and poly(ethylene terephthalate), wherein the entangled yarn has a node frequency of about 40 to 50 nodes/m, a Crimp Potential of at least about 40%, substantially no twist, and a standard deviation of intervals between nodes of no more than about 1.1 cm. The invention further provides a process for making such an entangled yarn.
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Calvert John J.
Furr, Jr. Robert B.
Hurley Shaun R
Invista North America S.a.r.l.
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