Process for preparing fiber, rovings and mats from lyotropic liq

Details Process for preparing fiber, rovings and mats from lyotropic liq Process for preparing fiber, rovings and mats from lyotropic liq

1989-02-01

1990-10-16

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

By impinging or atomizing with gaseous jet or blast

264 14, 264517, 264518, 264141, 264178F, 264180, 264181, 264184, 264200, D01D 511

Patent

active

049632981

ABSTRACT:
Process for preparing subdenier fiber and structures thereof from lyotropic liquid crystalline polymers comprising extruding a stream of the polymer into a chamber, introducing a pressurized gas into the chamber, directing the gas in the flow direction of and in surrounding contact with the stream within the chamber, passing both the gas and the stream into a zoner of lower pressure at a velocity sufficient to attenuate the stream and fragment it into fibers, and contacting the fragmented stream in the zone with a coagulating fluid.

REFERENCES:
patent: 3849241 (1974-11-01), Butin et al.
patent: 4013744 (1977-03-01), Kuerten et al.
patent: 4189455 (1980-02-01), Raganato et al.

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