Process for the production of a semipermeable membrane on a poro

Details Process for the production of a semipermeable membrane on a poro Process for the production of a semipermeable membrane on a poro

1990-03-14

1993-05-18

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

2041802, 2041814, 2041815, 2041816, 2041817, C05B 700

Patent

active

052118223

ABSTRACT:
The invention relates to a process for the production of a semipermeable membrane on a porous conductive support. The process involves the stages of finely dispersing in an aqueous or hydroorganic medium, insoluble solid mineral products in the presence of an electrodepositable coating resin, the preparation of an electrophoresis bath by adjusting the composition of the dispersion, deposition by electrophoresis of a layer of resin-coated, solid mineral products on a porous conductive support, possible deposition of several coatings and heat treatment of the porous conductive support and its layer of electrodeposited solid products. This gives filtering membranes suitable for microfiltration, ultrafiltration and reverse osmosis.

REFERENCES:
patent: 1822240 (1931-09-01), Schade

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