Spinneret for a co-spun filament within a hollow filament

Details Spinneret for a co-spun filament within a hollow filament Spinneret for a co-spun filament within a hollow filament

1986-06-27

1988-05-10

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

Extrusion shaping means

26417714, 26417715, 264173, 4251331, 425378S, B29C 4720

Patent

active

047431890

ABSTRACT:
A hollow fiber which contains within the hollow a co-spun hollow or solid filament. The solid filament is formed of polymer that can distribute energy within the hollow fiber while a co-spun hollow inner filament can also act as a vessel for transportation or separation of fluids. Spinnerets for co-spinning such filaments are of one piece construction.

REFERENCES:
patent: 1541528 (1923-05-01), Royle
patent: 3241503 (1963-08-01), Schafer
patent: 3856448 (1974-12-01), Iijima
patent: 4370114 (1983-01-01), Okamoto et al.
patent: 4493629 (1985-01-01), Goffe
Dual Aerobic Hollow-Fiber Bioreactor for Cultivation of Steptomyces aureofacinens, Biotechnology and Bioengineering, vol. 27, pp. 1012-1020 (1985), John Wiley & Sons, Inc.

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