Reinforced capillary membranes and process for manufacturing...

Details Reinforced capillary membranes and process for manufacturing... Reinforced capillary membranes and process for manufacturing...

2011-01-04

2011-01-04

Fortuna, Ana M (Department: 1797)

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

C210S400000, C210S500360, C210S500410, C210S500420, C427S247000, C264S041000, C264S176100, C264S177140, C428S376000

Reexamination Certificate

active

07861869

ABSTRACT:
A process for manufacturing asymmetric braid reinforced capillary ultra- or micro-filtration membranes (1), including the subsequent steps of pulling a tubular braid (5) through a spinneret (7) and coating the braid with a dope. Prior to the coating step, the braid is impregnated with a non-coagulation liquid, being a liquid which does not cause coagulation of the dope, when brought in contact with the dope. The result is a membrane with an outer skin, i.e. smaller pores near the outside diameter than near the inside diameter, and a coating which is closely arranged around the outside diameter of the braid, without any substantial penetration of the coating into the braid.

REFERENCES:
patent: 3676193 (1972-07-01), Cooper et al.
patent: 4061821 (1977-12-01), Hayano et al.
patent: 4894157 (1990-01-01), Johnson
patent: 5472607 (1995-12-01), Mailvaganam et al.
patent: 6354444 (2002-03-01), Mahendran et al.
patent: 7172075 (2007-02-01), Ji
patent: 7267872 (2007-09-01), Lee et al.
patent: 7413804 (2008-08-01), Lee et al.
patent: 7562778 (2009-07-01), Shinada et al.
patent: 40 25 768 (1992-02-01), None
patent: 1 321 178 (2003-06-01), None
patent: 03/076055 (2003-09-01), None
patent: WO 03/097221 (2003-11-01), None
patent: WO 03009221 (2003-11-01), None
patent: WO 03/047734 (2003-12-01), None

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