Plastic and nonmetallic article shaping or treating: processes – With twining – plying – braiding – or textile fabric formation
Patent
1994-03-16
1996-01-30
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
With twining, plying, braiding, or textile fabric formation
28254, 28271, 57287, 57288, 57310, 57350, 57908, 264130, 26417714, 2642093, 2642095, 2642108, 2642356, 2642888, 2642905, 264346, D01D 524, D01D 5253, D02J 108, D02J 122
Patent
active
054878594
ABSTRACT:
A post-coalescence melt-spinning process for preparing fine undrawn hollow polyester filaments having excellent mechanical quality and uniformity at high speeds (2-5 km/min) involving selection of polymer viscosity and spinning conditions, whereby the void content of the resulting new undrawn filaments is essentially maintained or increased on cold-drawing or hot-drawing with or without post heat treatment, and the new fine hollow polyester filaments obtained thereby.
REFERENCES:
patent: 5223198 (1993-06-01), Frankfort et al.
patent: 5250245 (1993-10-01), Collins et al.
patent: 5356582 (1994-10-01), Aneja et al.
Aneja Arun P.
Bennie David G.
Collins Robert J.
Frankfort Hans Rudolf E.
Johnson Stephen B.
E. I. Du Pont de Nemours and Company
Tentoni Leo B.
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