Biaxial stretching of plastic tubes
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United States of America Patent
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Oct 2, 2001
Grant Date -
N/A
app pub date -
Mar 13, 1998
filing date -
Sep 15, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A continuous process and apparatus for producing oriented plastic tube comprising the steps of extrusion, temperature conditioning, diametrical expansion and cooling, characterized by the step of inducing axial draw of the tube between first and second haul-off means located upstream of the expansion step.
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Cited Art Landscape
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