Synthetic filament having a cross-section based upon an ellipse
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United States of America Patent
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Issued Date -
Nov 20, 2003
app pub date -
May 14, 2002
filing date -
May 14, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention encompasses a filament having a cross-section based upon an ellipse where one side of the filament is defined by a convex-concave-convex curve. The invention also encompasses a spinneret and method for making the filament. The filament is preferably made from condensation polymers and in particular polyethylene terephthalate or other polyesters.
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