Microporous hollow fiber and process and apparatus for preparing

Details Microporous hollow fiber and process and apparatus for preparing Microporous hollow fiber and process and apparatus for preparing

1982-02-18

1983-09-20

Kendell, Lorraine T.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

2105002, 264177F, D02G 300

Patent

active

044056885

ABSTRACT:
The present invention provides microporous hollow fiber with improved structural and performance characteristics and a process and apparatus for preparing the improved fiber. The microporous hollow fiber possesses substantially uniform wall thickness, cross-sectional dimensions and porosity. Such characteristics are obtained by melt spinning hollow fiber precursor under defined conditions in a substantially vertically upward direction and subjecting the precursor to a symmetrical quenching step which may be achieved using a hollow annular structure surrounding the precursor. The structure, which is connected to a source of gas, has one or more openings on its inner surface that distribute the gas against the precursor in a substantially uniform manner.

REFERENCES:
patent: 3423491 (1969-01-01), McLain et al.
patent: 4020230 (1977-04-01), Mahoney et al.
patent: 4055696 (1977-10-01), Kamada et al.

Affiliated with

Also associated with

Rating

Microporous hollow fiber and process and apparatus for preparing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Microporous hollow fiber and process and apparatus for preparing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microporous hollow fiber and process and apparatus for preparing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-588429