Process for preparing isotropic microporous polysulfone membrane

Details Process for preparing isotropic microporous polysulfone membrane Process for preparing isotropic microporous polysulfone membrane

1988-09-23

1990-11-13

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 41, 264 49, 264557, 264561, 264562, 264184, 2642091, 26421116, 264216, 21050041, B29C 6720

Patent

active

049700340

ABSTRACT:
Isotropic microporous polysulfone membranes can be prepared by using a particular combination of casting solution and precipitation solution formulations, and casting conditions. Both hollow fiber and flat membranes can be prepared in this manner. The membranes are skinless and are characterized by uniform porosity throughout the membrane.

REFERENCES:
patent: 3691068 (1972-09-01), Cross
patent: 3855122 (1974-12-01), Bourganel
patent: 4029582 (1977-06-01), Ishii et al.
patent: 4207182 (1980-06-01), Marze
patent: 4342711 (1982-08-01), Joh et al.
patent: 4481260 (1984-11-01), Nohmi
patent: 4612119 (1986-09-01), Eguchi
patent: 4690765 (1987-09-01), Linder et al.
patent: 4690766 (1987-09-01), Linder et al.
patent: 4720343 (1988-01-01), Walch et al.
patent: 4744932 (1988-05-01), Browne
patent: 4772391 (1988-09-01), Baker et al.
patent: 4820460 (1989-04-01), Repetti et al.
Cabasso et al., Journal of Applied Polymer Science, (vol. 20, pp. 2377-2394, (1976))--"Polysulfone Hollow Fibers. I. Spinning and Properties".
Cabasso et al., Journal of Applied Polymer Science, (vol. 21, pp. 165-180, (1977))--"Polysulfone Hollow Fibers. II. Morphology".
Cabasso et al., Journal of Applied Polymer Science, (vol. 21, pp. 1883-1900 (1977))--"Porosity and Pore Size Determination in Polysulfone Hollow Fibers".
Aptel et al., Journal of Membrane Science, (vol. 22, pp. 199-215, (1985))--"Polysulfone Hollow Fibers--Effect of Spinning Conditions on Ultrafiltration Properties".

Affiliated with

Also associated with

Rating

Process for preparing isotropic microporous polysulfone membrane does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing isotropic microporous polysulfone membrane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing isotropic microporous polysulfone membrane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-775706