Title:
OSMOTIC MEMBRANE
Document Type and Number:
Japanese Patent JPS5539287
Kind Code:
A
Abstract:
This invention is directed to hollow filament membranes derived from esters of cellulose and characterized by a density gradient in the filament wall structure. When employed in reverse osmosis operations the filaments exhibit extraordinary flux and rejection properties. A continuous fabricating method is also provided which comprises continuously extruding filaments into a controlled evaporation zone thence directing the filaments into a cold water coagulation bath, thereafter passing the same to a wash bath and finally to an annealing zone.
Inventors:
RICHIYAADO RUROIDO REONAADO
JIYON DAARERU BASHIYOO
JIYON DAARERU BASHIYOO
Application Number:
JP1179679A
Publication Date:
March 19, 1980
Filing Date:
February 03, 1979
Export Citation:
Assignee:
MONSANTO CO
International Classes:
B01D71/14; C25B13/04; B01D71/06; D01D5/06; D01D5/24; D01F2/28; (IPC1-7): B01D13/00; B01D31/00
Domestic Patent References:
| JP44005526A | ||||
| JP39028625A | ||||
| JP44014215A |