Composite membrane and process

Details Composite membrane and process Composite membrane and process

2006-07-03

2009-10-13

Fortuna, Ana M (Department: 1797)

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

C210S490000, C210S500270, C210S500350, C210S652000

Reexamination Certificate

active

07601263

ABSTRACT:
The invention relates to a composite with a separation-active membrane layer and a supporting membrane, a process for the production of the same and a process for using the same. The composite membrane according to the invention is distinguished by the fact that the separation-active membrane layer comprises a polymer hardened by electromagnetic radiation with wave length that is less than 800 nm and/or by electron beams. The process according to the invention is distinguished by the fact that a layer of a solution of a polymer that can be hardened by electromagnetic radiation with a wavelength that is less than 800 nm and/or by electron beams and an initiator substance is applied to a supporting membrane and subsequently is hardened by electromagnetic radiation and/or by electron beams. The use according to the invention serves to retain low molecular weight substances from organic solutions.

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Stafie N., et al.:“Insight into the transport of hexane-solute systems through tailor-made composite membranes” Journal of Membrane Science, Elsevier Scientific Publ. Company. Amsterdam, NL. Bd. 228, Cr. 1, 1 . Jan. 2004, Seiten 103-116, XP004482123, ISSN:0376-7388.
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Stafie, et al., “Insight into the Transport of Hexane-Solute Systems Through Tailor-Made Composite Membranes,” Journal of Membrane Science 228, (2004), pp. 103-116.
English version of German Office Action dated Jul. 12, 2006.

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