B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
18/27
B01D 71/64 (2006.01) B01D 53/22 (2006.01) B01D 67/00 (2006.01) B01D 69/12 (2006.01) B01D 71/52 (2006.01)
Patent
CA 2021551
ABSTRACT OF THE DISCLOSURE: Composite polymeric membranes for the separation of mixture of gases and the method for preparation the same. The invention pertains to composite polymeric membranes for the separation of mixture of gases and to a method for their preparation. The membranes have higher selectivity in the separation of mixtures He/N2 and O2/N2, suitable mechanical properties and a high permeability. They consist of a microporous base based on aromatic polyimides of the general formula II or polyamidoimides of the general formula IV and a polymeric selective layer formed from poly-2,6-dimethyl- 1,4-phenyleneoxide or it's derivatives of the general formula I. A method for the preparation of composite polymeric membranes according to the invention which consist in that on an in advance prepared and dried microporous polymeric base, being based on an aromatic polyimide of the formula II or a polyamidoimide of the formula IV, there is formed a thin polymeric selective layer being based on poly- 2,6-dimethyl-1,4-phenyleneoxide or it's derivatives of the formula I. The formulas are the following: General formula II Image General formula IV Image General formula I Image
Bleha Miroslav
Krucinina Elena V.
Kuznecov Jurij P.
Polockaja Galina A.
Schauer Jan
Akademija Sssr
Bleha Miroslav
Ceskoslovenska Akademie Ved
Krucinina Elena V.
Kuznecov Jurij P.
LandOfFree
Composite polymeric membranes for the preparation of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Composite polymeric membranes for the preparation of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite polymeric membranes for the preparation of... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1597364