Thin film composite membranes from vinyl and related nomomers

Details Thin film composite membranes from vinyl and related nomomers Thin film composite membranes from vinyl and related nomomers

1990-11-30

1992-06-02

Dawson, Robert A.

Liquid purification or separation

Processes

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

210654, 210490, 21050027, 210 5028, 21050037, 21050038, 21050042, 21050043, 264 451, B01D 6100, B01D 3900

Patent

active

051184249

ABSTRACT:
Novel thin film composite membranes are disclosed. They are prepared from vinyl and related monomers by phase transfer catalysis at the interface between one phase containing a polymerizable vinyl or related monomer and a second phase containing an entity necessary to initiate polymerization of the monomer. The two phases are substantially insoluble in each other. At least one of the phases is a fluid. One of the phases is integral with a porous support or substrate or a precursor of such support or substrate such as a porous organic or inorganic diaphragm made by thermal phase inversion from which the soluble phase has not been extracted.

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patent: 4913816 (1990-04-01), Waite
patent: 4917800 (1990-04-01), Lonsdale et al.
patent: 5015380 (1991-05-01), Sundet

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