Process for preparing non-porous, selective membrane layers

Details Process for preparing non-porous, selective membrane layers Process for preparing non-porous, selective membrane layers

1989-03-13

1990-12-11

Spear, Frank

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21050036, 264 22, B01D 6912

Patent

active

049768565

ABSTRACT:
The invention relates to a process for preparing non-porous, selective membrane layers by contacting a permeable, continuous substrate (e.g. comprising a non-porous, permeable intermediate layer and a microporous support layer) with the glowing zone of a plasma.

REFERENCES:
patent: 4032440 (1977-06-01), Yasuda
patent: 4230463 (1980-10-01), Henis et al.
patent: 4347139 (1982-08-01), Hayashi
patent: 4533369 (1985-08-01), Okita
patent: 4692347 (1987-09-01), Yasuda
patent: 4784764 (1988-11-01), Giordano, Jr. et al.
patent: 4806246 (1989-02-01), Nomura

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