Liquid purification or separation – Filter – Material
Patent
1987-08-12
1990-02-13
Spear, Frank
Liquid purification or separation
Filter
Material
264 41, B01D 1300
Patent
active
049004441
ABSTRACT:
A porous membrane for use in the separation of blood components, made of a polyolefin, having a wall thickness in the range of 10 to 500 .mu.m, and possessing through holes having an average diameter of 0.01 to 5 .mu.m at a porosity in the range of 10 to 85%, which porous membrane is characterized by exhibiting a shrinkage of not more than 6.0% in a heat treatment carried out at 121.degree. C. for 120 minutes. A method for the manufacture of the porous membrane is also disclosed.
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Onishi Makoto
Seita Yukio
Spear Frank
Terumo Corporation
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