Composite membrane of a hydrophilic asymmetric membrane coated w

Details Composite membrane of a hydrophilic asymmetric membrane coated w Composite membrane of a hydrophilic asymmetric membrane coated w

1992-01-02

1994-03-22

Spear, Frank

Liquid purification or separation

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Supported, shaped or superimposed formed mediums

21050028, 210640, B01D 7180

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active

052961443

ABSTRACT:
An organosiloxane block copolymer having the formula depicted (I) depicted below: ##STR1## wherein: m has a value of 8.0-18.0;

REFERENCES:
patent: 4591440 (1986-05-01), Higashimura
patent: 4600751 (1986-07-01), Lee et al.
patent: 4728429 (1988-03-01), Cabasso
patent: 4906169 (1990-03-01), Chien et al.
Kimura et al., "Pervaporation of Organic Substance Water System With Silicone Rubber Membrane," 8(3) Membrane, pp. 177-183 (1983).
Toshihiro Hirotsu et al., "Water-Ethanol Permseparation by Pervaporation through Photocrosslinked Poly (vinyl Alcohol) Composite Membranes,"]vol. 36, Journal of Applied Polymer Science, pp. 1717-1729 (1988).
Aptel et al., "Liquid Transport Through Membrane Prepared by Grafting of Polar Monomers onto Poly(tetrafluoroethylene) Films," vol. 16, Journal of Applied Polymer Science, pp. 1061-1076 (1972).

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