Flat permeable membrane

Details Flat permeable membrane Flat permeable membrane

1985-11-08

1988-05-10

Ives, P. C.

Liquid purification or separation

Filter

Material

210654, 428516, 428523, 264 41, B01D 1300

Patent

active

047433752

ABSTRACT:
A flat permeable polyolefin membrane 10 to 500 .mu.m in thickness, which has in one surface thereof a compact layer formed of intimately bound fine polyolefin particles and possessed of fine pores and in the interior and the other surface thereof a layer formed of an aggregate of fine discrete polyolefin particles of an average diameter in the range of 0.01 to 5 .mu.m so adjoined as to form fine labyrinthically continuing through pores and which, therefore, establishes communication between the opposite surfaces of said membrane.

REFERENCES:
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patent: 3401798 (1968-09-01), Nyrop
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patent: 4401567 (1983-09-01), Shindo et al.
patent: 4438850 (1984-03-01), Kahn
patent: 4539256 (1985-09-01), Shipman
patent: 4613441 (1986-08-01), Kohno et al.

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