B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
18/24
B01D 67/00 (2006.01) B01D 69/02 (2006.01) B01D 71/38 (2006.01)
Patent
CA 1073822
Abstract of the Disclosure The invention concerns selective separation membranes suitable for blood dialysis and a method or producing such membranes. The membranes are made up of etbylene-vinyl alcohol copolymer particles having an average diameter in the range of 100 to 10,000 Angstrom units, the particles being bonded to each other in such a manner that the resulting membrane is substantially free of pores in excess of 2 microna in diameter. The method of preparation involves dissolving the copolymer in a solvent consisting essentially of dimethyl sulfoxide, dimethylacetamide or a mixture thereof, and then causing the resultant solution to coagulate into a shaped article in a coagulation bath in not less than three seconds.
254552
Nagata Shiro
Takakura Koichi
Yamada Kunitake
Yamashita Shuzo
Kuraray Co.
Na
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