Process of making reinforced, three zone microporous membrane

Details Process of making reinforced, three zone microporous membrane Process of making reinforced, three zone microporous membrane

1998-03-18

2000-07-18

Dudash, Diana

Coating processes

Foraminous product produced

Filter, sponge, or foam

427245, 427246, 427412, 210490, B05D 126, B05D 134, B05D 136, B05D 300, B05D 704

Patent

active

060904410

ABSTRACT:
A process for producing a three zone, reinforced, continuous, geometrically symmetrical microporous membrane including a porous support material encapsulated within a middle zone disposed between an upper zone and a lower zone wherein at least one of the three zones has a pore size at least about twenty (20%) percent greater than the pore size of the other two zones is disclosed. Apparatus for fabricating a three zone, reinforced, continuous, geometrically symmetrical, microporous membrane and the fabricated membrane are also disclosed.

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