High speed spinning of sheath/core bicomponent fibers
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United States of America Patent
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Dec 25, 2001
Grant Date -
N/A
app pub date -
Feb 14, 2000
filing date -
Feb 14, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Processes whereby sheath/core bicomponent fibers are melt-spun at relatively high spinning rates. In particularly preferred forms, polyamide sheath/core bicomponent fibers are made at melt-spinning speeds of about 4000 meters per minute or greater, and more preferably about 4500 meters per minute or greater. Most preferably, the sheath is formed of nylon 6,12 while the core is formed of nylon 6.
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