Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1992-04-01
1993-11-16
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
264178F, 2642107, 2642108, 26421115, 26421117.290.5, B29C 3510, D01D 512, D01F 660, D02J 122
Patent
active
052620999
ABSTRACT:
A process of the type including the steps of spinning, water-quenching, and drawing a heavy denier, polyamide monofilament in at least first and second draw stages to a total draw ratio of at least about 5.5.times.. The quenched monofilament is advanced in the first draw stage through a steamer containing a high temperature steam atmosphere and is advanced in the second draw stage through a zone heated with a radiant heater. The improvement includes:
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Adams Earl B.
Anderson Robert K.
Diwan Rajive K.
E. I. Du Pont de Nemours and Company
Tentoni Leo B.
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