Title:
MANUFACTURE OF ASYMMETRICAL MEMBRANES
Document Type and Number:
Japanese Patent JPS5319180
Kind Code:
A
Abstract:
Asymmetric membranes for osmosis and ultrafiltration are prepared from fluorinated polymers which are dissolved in one or more solvents, cast on a plate, allowed to evaporate and precipitated with a nonsolvent. The polymeric material can variously be modified by chemical reactions, irradiations or both. By varying the chemical and physical parameters of the preparation run, a variety of membranes can be obtained which have the most varied performances and properties.
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Inventors:
SUTEERIO MUNAARI
FUERUNANDO BIIGO
GUSUTAABO KAPANNETSURI
KURAUJIO URIAANA
ARUDO BOTSUCHIINO
FUERUNANDO BIIGO
GUSUTAABO KAPANNETSURI
KURAUJIO URIAANA
ARUDO BOTSUCHIINO
Application Number:
JP9343577A
Publication Date:
February 22, 1978
Filing Date:
August 05, 1977
Export Citation:
Assignee:
TECNECO SPA
International Classes:
B01D67/00; B01D71/32; B01D71/34; B01D71/28; B01D71/44; B01D71/78; B01D71/82; C08J5/18; C08J5/22; C08L27/12; C08L27/16; C09D127/12; (IPC1-7): B01D13/00; B01D31/00; C08J9/00