Process for preparation of discontinuous filament bundles and sharp-ended filaments
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United States of America Patent
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Apr 22, 1986
Issued Date -
N/A
app pub date -
Sep 9, 1985
filing date -
Oct 5, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for the preparation of discontinuous filament bundles, which comprises applying a drawing force and/or a shearing force to a bundle of continuous filaments while or immediately after contacting the bundle of continuous filaments with a medium maintained at a temperature lower than -5.degree. C. to cut the respective single filaments constituting the bundle. The individual filaments of the resultant bundle may have on at least one terminal thereof a sharp end cut obliquely and an inclination angle .alpha. of the cut top end to the filament axis of less than 70.degree..
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