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

1988-12-19

1990-03-13

Spear, Frank

Coating processes

Foraminous product produced

Microporous coating

210490, 21050035, B01D 1300

Patent

active

049082361

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:
patent: 3083118 (1963-03-01), Bridgeford
patent: 3220960 (1965-11-01), Wichterle et al.
patent: 4423099 (1983-12-01), Mueller et al.
patent: 4655807 (1987-04-01), Ohmori et al.

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