Tube of oriented, heat shrunk, melt blown fibers
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United States of America Patent
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Jul 11, 1989
Issued Date -
N/A
app pub date -
Dec 11, 1987
filing date -
Jun 7, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There is disclosed a process and apparatus for melt blowing at an initial velocity of from 500 to 1000 feet per second a molten thermoplastic condensation polymer at a temperature less than 50.degree. C. above the melting point thereof to form fibers of high molecular orientation, and collecting the fibers to form a non-woven web. In one aspect of the present invention, the fibers are collected on a rotating mandrel and heat treated during collection or subsequent of collection.
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Cited Art Landscape
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