Method for the surface modification of formed bodies and formed

Details Method for the surface modification of formed bodies and formed Method for the surface modification of formed bodies and formed

1994-12-23

1996-08-20

Spear, Frank

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21050035, 21050042, 427245, B01D 6700

Patent

active

055475752

ABSTRACT:
Fabrication of the surface-grafted microporous membranes by coating the membrane with an N-halogenated compound, followed by grafting with an unsaturated monomer and sodium dithionite in a primarily aqueous solution that may contain an organic halogen compound selected from carbon tetrachloride and trichloroacetic acid. The coating may be formed in situ and may be cross-linked.

REFERENCES:
patent: 3083118 (1963-03-01), Bridgeford
patent: 4690766 (1987-09-01), Linder et al.
patent: 4944879 (1990-07-01), Steuck
patent: 4976861 (1990-12-01), Pall

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