Process for the preparation of polymer fibers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...

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264 8, 264 14, 264 69, 528498, 528502, C08F 612, C08F 606

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active

040484297

ABSTRACT:
Polymeric fibers are produced from a polymer-solvent solution without mechanical agitation means by supplying a polymer solution in a solvent to a radial-symmetrical mixing chamber and causing a rotary flow therein which subjects the polymer to shearing forces while, at the same time, adjusting the temperature of the polymer-solvent mix to just below the precipitation temperature of the polymer. Under these conditions a polymeric fiber precipitates which, after separation from the solvent, is useful in the preparation of paper and textile products.

REFERENCES:
patent: 3743272 (1973-07-01), Nowotny et al.
patent: 3995001 (1976-11-01), Vroomans et al.
patent: 3997648 (1976-12-01), Davis et al.

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