Dry process for forming polycarbonate membranes

Details Dry process for forming polycarbonate membranes Dry process for forming polycarbonate membranes

1976-01-05

1977-09-13

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

264216, B29D 2704

Patent

active

040482715

ABSTRACT:
Integral, skinned and unskinned, microporous microfiltration and ultrafiltration, electrophoresis membranes having high void volumes (above 50% void) composed of polycarbonates and copolymers of polycarbonates with polyalkylene oxides and the dry process for producing such membranes are disclosed.

REFERENCES:
patent: 3615024 (1971-10-01), Michaels
patent: 3767737 (1973-10-01), Lundstrom
patent: 3780147 (1973-12-01), Stana
patent: 3781378 (1973-12-01), Kantor et al.
patent: 3884801 (1975-05-01), Kesting
patent: 3945926 (1976-03-01), Kesting
Vos, Kenneth D. and F. O. Burris, "Drying Cellulose Acetate Reverse Osmosis Membranes," in I & BC Product Research and Development, vol. 8, No. 1, Mar. 1969, pp. 84-89.

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