Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1977-11-30
1979-06-12
Lander, Ferris H.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210500M, 55 16, 55158, 264 41, B01D 1300
Patent
active
041579607
ABSTRACT:
The selectivities of fluid separations of membranes having pores, in which the material of the membranes significantly effects the fluid separations, can be enhanced by the storage of the membranes in water. Suitable materials of the membranes for improvement in accordance with this invention are those which are not unduly susceptible to biodegradation. The membranes for improvement in accordance with this invention preferably have structures which are not unduly affected by drying and thus maintain beneficial mechanical and fluid separation properties after drying.
REFERENCES:
patent: 3398088 (1968-08-01), Okey
patent: 3472765 (1969-10-01), Budd et al.
patent: 3615024 (1971-10-01), Michaels
patent: 3703570 (1972-11-01), Busch et al.
Chang Richard C.
Ward Robert R.
Balmer Norman L.
Lander Ferris H.
Monsanto Company
Stanley Howard C.
Williams, Jr. James W.
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