Ultrafiltration membrane of linear polyurethane

Details Ultrafiltration membrane of linear polyurethane Ultrafiltration membrane of linear polyurethane

C - Chemistry, Metallurgy

08

J

18/12, 182/15.3,

C08J 9/00 (2006.01) B01D 71/54 (2006.01) C08G 18/48 (2006.01) C08G 18/66 (2006.01) C08G 18/76 (2006.01)

Patent

CA 1150457

ABSTRACT OF THE DISCLOSURE An ultrafiltration membrane comprises one or more linear polyurethanes having a hydraulic permeability to water of from 50 to 500 l/m2.h, preferably 200 to 400 l/m2.h, (determined using a membrane approximately 0.020 mm thick at a temperature of 20°C for a pressure difference of 1 bar) and a separation factor ? (determined using a 2% oil-in- water emulsion at 25°C) of from 2 x 10-3 to 1 x 10-4; more particularly, the membrane comprises a linear poly- urethane having an average molecular weight of from 100,000 to 1,000,000 based on from 20 to 80%, by weight of poly- ethylene glycol and from 80 to 20%, by weight of ethylene glycol and diphenyl methane diisocyanate; the production of and use of such a membrane, in particular for separating oil from water, for working-up fat-containing waters or for concentrating oil-containing waters, is disclosed.

350976

Affiliated with

Also associated with

Rating

Ultrafiltration membrane of linear polyurethane does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ultrafiltration membrane of linear polyurethane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrafiltration membrane of linear polyurethane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-718231