Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Production of continuous or running length
Patent
1998-05-28
2000-01-11
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Production of continuous or running length
264103, 2642108, 26421114, 26421117, 425 66, 425 722, 4253782, 4253791, 4253822, 425464, D01D 5084, D01D 514, D04H 300
Patent
active
06013223&
ABSTRACT:
An apparatus and process for extruding fiberforming thermoplastic polymers through spinning nozzles arranged in multiple rows are forming a non-woven web of high strength fibers. The molten fibers are accelerated by expanding hot gas flowing parallel to the extrusion nozzles and the fibers to a first velocity and cooled below their melting point, and subsequently accelerated to a higher velocity by an air jet fed with compressed cold air. The resulting fibers have a high degree of molecular orientation and tenacity and are collected on a moving collecting surface as a non-woven web.
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patent: 5476616 (1995-12-01), Schwarz
patent: 5688468 (1997-11-01), Lu
Biax-Fiberfilm Corporation
Schwarz Eckhard C.A.
Tentoni Leo B.
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