Membrane

Details Membrane Membrane

1998-01-29

2000-04-25

Dixon, Merrick

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Autogenously or by activation of dry coated particles

264178, 264 49, 21050041, 21050023, 21050042, 210646, 156155, 156296, D27J 500

Patent

active

060540850

ABSTRACT:
A method of producing a membrane comprises providing a solution containing a plurality of polymers in a non-aqueous liquid solvent, at least one of the polymers (hereinafter referred to as the "first polymer") having been prepared by polymerizing at least one vinyl or acrylic monomer, at least one other of the polymers being a membrane-forming hydrophobic polymer (hereinafter referred to as the "second polymer"), the first polymer and the second polymer being mutually incompatible in said solution, and contacting the solution with an aqueous medium thereby to precipitate the polymers from the solution to form the membrane.

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patent: 5344702 (1994-09-01), Haubs et al.
patent: 5762798 (1998-06-01), Wenthold et al.

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