Title: Process for the production of composite membranes

Abstract: A process for the production of a composite membrane consisting of a porous supporting membrane and a thin separating membrane. The separating membrane is produced on the surface of a carrier film (consisting essentially of a soluble polymer). The carrier film coated with the separating membrane is placed with its separating membrane side on a porous supporting membrane such that the separating membrane is between the supporting membrane and the carrier film. The carrier film is then dissolved.

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Inventors: Klimmek, Albrecht (Frankfurt am Main, DE, US)
Krieger, Wolfram (Frankfurt am Main, DE, US)
Reiner, Roland (Eschborn, DE, US)

Application Number: 014952
Filing Date: 1979-02-26
Publication_date: 1980-12-30
Assignee: Battelle-Institut e.V. (Frankfurt am Main, DE)
Primary Class(es): 156/155 156/230, 156/236, 210/490, 210/500.21, 210/500.28, 210/500.29, 210/500.35, 210/500.42, 210/506
Other Classes:
US Patent Ref:

3671007	Jun, 1972	Bailey et al.	249/114.
3969452	Jul, 1976	Ciliberti et al.	210/500.
3979274	Sep, 1976	Newman	156/230.
4005012	Jan, 1977	Wrasidlo	210/23.

Other Refs: 1267167

Mar, 1972	GB

Primary Examiner: Lawrence, Evan K.
Assistant Examiner:
Attorney: Fisher, Christen & Sabol