Method of manufacturing hollow fiber

Details Method of manufacturing hollow fiber Method of manufacturing hollow fiber

1981-06-15

1983-05-24

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

264561, 264182, 2642091, 428398, B29D 2700

Patent

active

043850170

ABSTRACT:
A method of manufacturing a microporous hollow fiber having a high permeability to water characterized in that a spinning solution of (A) polyacrylonitrile, (B) an acrylonitrile copolymer, or (C) an admixture of (A) and (B) in an organic solvent is extruded from an annular slit, while simultaneously extruding an organic core liquid which is a solvent for (A), (B) and (C) or a swelling agent capable of swelling them from an orifice encircled by the annular slit and introducing the extruded spinning solution with the core liquid into an aqueous coagulating bath to coagulate the spinning solution to form the hollow fiber.

REFERENCES:
patent: 3674628 (1972-07-01), Fabre
patent: 3888771 (1975-06-01), Isuge et al.
patent: 4051300 (1977-09-01), Klein et al.
patent: 4234431 (1980-11-01), Mishiro et al.
patent: 4322381 (1982-03-01), Joh
patent: 4323627 (1982-04-01), Joh

Affiliated with

Also associated with

Rating

Method of manufacturing hollow fiber does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of manufacturing hollow fiber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing hollow fiber will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2145786