B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/15, 204/96.1
B01D 69/12 (2006.01) A61M 1/34 (2006.01) B01D 63/08 (2006.01) B01D 67/00 (2006.01)
Patent
CA 1325405
ABSTRACT OF THE DISCLOSURE A porous hydrophilic polypropylene membrane possessing a fine reticular structure, which is characterized by the fact that at least either of the opposite surfaces of membrane forms a surface layer of a reticular structure substantially equal to that in the interior of membrane, the membrane surfaces and the surfaces of pores in the membrane have a hydrophilic polymer chemically bonded thereto, and the membrane is composed substantially of a polypropylene possessing an average pore diameter in the range 0.1 to 2.0 µm, a bubble point of not more than 2.0 kg/cm2, a porosity in the range of 60 to 85%, and a water permeability of not less than 2 ml/min.mmHg.m2, a method for the production thereof, and a blood plasma separation apparatus incorporating such membranes in a housing are disclosed.
577109
Hirasa Okihiko
Masuoka Toshio
Onishi Makoto
Seita Yukio
Agency Of Industrial Science And Technology Ministry Of International Trade And Industry
Macrae & Co.
Terumo Kabushiki Kaisha
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