Apparatus for producing large diameter spun filaments

Plastic article or earthenware shaping or treating: apparatus – Shaping orifice and downstream work contacting gaseous...

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264 24, 4251748E, B29C 2300

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active

043167160

ABSTRACT:
Large diameter filaments are produced by increasing the cooling efficiency of a molten polymer as it exits a spinnerette orifice. The cooling is accomplished in a collar configuration having means for directing cooling air and an ionic discharge in a direction transverse to the axis of the filament as it passes through the collar.

REFERENCES:
patent: 2252684 (1941-08-01), Babcock
patent: 2336745 (1943-12-01), Manning
patent: 3224497 (1965-12-01), Blomgren, Sr. et al.
patent: 3387326 (1968-06-01), Hollberg et al.
patent: 3707593 (1972-12-01), Fukada et al.
patent: 3952846 (1976-04-01), Han
Electrostatic Cooling-Still Emerging Technology Design Report, 3-8-76, pp. 21-24.
"Instant Cooling by Electrostatics", Business Week, 8-12-72, 2 pages.

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