Transparent porous membrane having hydrophilic surface and proce

Details Transparent porous membrane having hydrophilic surface and proce Transparent porous membrane having hydrophilic surface and proce

1986-12-04

1990-04-17

Jones, W. Gary

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Transparent

210490, 21050035, 21050038, 21050036, 4283157, 4283159, 435284, B01D 1300

Patent

active

049177931

ABSTRACT:
A composite, microscopically transparent, porous membrane is formed from a porous polytetrafluoroethylene membrane having desired bulk properties on which is directly coated a cross-linked polymer having desired surface properties. The composite membrane retains the porosity of the porous polymeric membrane.

REFERENCES:
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patent: 4230463 (1980-10-01), Henis et al.
patent: 4298002 (1981-11-01), Ronel et al.
patent: 4387024 (1983-06-01), Kurihara et al.
patent: 4546083 (1985-10-01), Meyers et al.
patent: 4618533 (1986-10-01), Steuck
patent: 4627850 (1986-12-01), Deters et al.
patent: 4645602 (1987-02-01), Barnes, Jr. et al.
patent: 4670146 (1987-05-01), Inoue et al.
patent: 4705636 (1987-11-01), Small et al.

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