Liquid purification or separation – Filter – Material
Patent
1984-03-16
1987-01-13
Spear, Frank
Liquid purification or separation
Filter
Material
55158, B01D 1300
Patent
active
046363149
ABSTRACT:
Polymer blended membranes which comprise a blend of a compound such as a heteropoly acid or salt thereof and a polymer which is at least partially compatible with said compound, said blend containing a multiplicity of electrically conductive particles which form a portion of said membrane may be prepared by admixing the polymer and the acid or salt in a mutually miscible solvent. Thereafter, the electrically conductive particles, the size of which is sufficient so that the surfaces of the particles are coexistent with or extend beyond the surfaces of the membrane, may be added to the solution or, alternatively, the solution may be cast onto a casting surface and the particles added in a manner so as to ensure a uniform distribution of the particles throughout the solution. After evaporation of the solvent, the resulting thin film membrane may then be recovered and used in a gas separation apparatus or in a gas sensor apparatus.
REFERENCES:
patent: 3246767 (1966-04-01), Pall et al.
patent: 3962158 (1976-06-01), Mima et al.
patent: 4024036 (1977-05-01), Hakamura et al.
patent: 4500667 (1985-02-01), Polak et al.
Beuhler Allyson J.
Polak Anthony J.
McBride Thomas K.
Nelson Raymond H.
Spear Frank
Spears Jr. John F.
UOP Inc.
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