Process for preparing a polyester-amide hollow fiber membrane

Details Process for preparing a polyester-amide hollow fiber membrane Process for preparing a polyester-amide hollow fiber membrane

1987-06-09

1989-05-16

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

21050023, 21050038, 264 455, 264184, 2642091, 2642095, C08J 928, C08J 934, B29C 4720

Patent

active

048307963

ABSTRACT:
A hollow fibre of polyester-amide, useful in the process of dialysis and in ultra-filtration processes in general, is formed by a polyester-amide with repetitive units (TATE).sub.n (wherein T is the terephthalic acid radical; A is the ethylenediamine radical; and E is the hexanediol radical).
Such a fibre is obtained by a process which comprises the following steps, carried out sequentially:

REFERENCES:
patent: 3888771 (1975-06-01), Isuge et al.
patent: 3962158 (1976-06-01), Mima et al.
patent: 4071454 (1978-01-01), Yamamoto et al.
patent: 4454085 (1984-06-01), Schindler et al.
patent: 4460526 (1984-07-01), Makino et al.
patent: 4481260 (1984-11-01), Nohmi

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