Plastic article or earthenware shaping or treating: apparatus – Continuous filament forming or film casting means with...
Patent
1992-09-04
1994-11-22
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Continuous filament forming or film casting means with...
264103, 264184, 264203, 264245, 425 71, 425377, 425404, D01D 506
Patent
active
053663624
ABSTRACT:
An apparatus for making aromatic heterocyclic polymeric fibers having enhanced compressive strength is disclosed. Individual polymeric fibers, while being made according to otherwise conventional methods, are full twisted as they are drawn from a spinnerette hole so that their internal fibrils and microfibrils become entangled. The twisting is performed before coagulation of the fibers. The entangled fibrils and microfibrils are believed to provide mutual support to adjacent fibrils/microfibrils to resist buckling under compression.
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Adams Walter W.
Helminiak Thaddeus E.
Hunsaker Marilyn
Kumar Satish
Leyson Joseph
Sinder Fredric L.
Singer Donald J.
The United States of America as represented by the Secretary of
Woo Jay H.
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