Patent application number | Description | Published |
20080261101 | POLYMER ELECTROLYTE MEMBRANE COMPRISING COORDINATION POLYMER - A polymer electrolyte membrane is made from a polymer electrolyte and a coordination polymer, and finds use in a fuel cell. The polymer electrolyte membrane may be made by dissolving a polymer electrolyte in a solvent to provide a first solution, adding a coordination polymer to the first solution to yield a second solution, and forming the second solution into a film. | 10-23-2008 |
20090173694 | ISOPOROUS MEMBRANE AND METHOD OF PRODUCTION THEREOF - A membrane is produced by dissolving one or more polymers, at least one of which is a block copolymer, in a liquid which includes a solvent, to produce a casting solution. The casting solution is formed into film, and the film is immersed into a precipitation bath which contains at least one non-solvent for the block copolymer so that the film forms a membrane. The membrane is used for filtering a fluid that contains colloidal particles or proteins, and/or for ultrafiltration or nanofiltration, by flowing the fluid through the membrane. | 07-09-2009 |
20090255405 | GAS SEPARATION MEMBRANE - A membrane for gas separation includes a porous support layer and a separation layer. The separation layer comprises a mixture of one or more saccharide derivatives and one or more homopolymers. The saccharide derivative(s) may have a cyclic structure with five or six ring atoms, or a linear structure, or may include monosaccharide derivatives which are bound via glycoside bonds, and the number of monosaccharides bound in this manner may be 2 to 1,000. A membrane can be produced by preparing a homogeneous solution which comprises a saccharide derivative and a homopolymer in a solvent; and pouring the homogenous solution onto a support layer. The membrane may be used in a gas separation module the operation of which makes use of the membrane. | 10-15-2009 |
20110120304 | POLYMER MEMBRANE - The invention relates to a method for producing membrane, in particular gas separation membrane, wherein the membrane comprises a selective separating layer. The following steps are carried out: a) a polymer solution is produced from at least one polymer and at least one polyglycol ether, b) the polymer solution is cast into a film, c) in a further step, the selective separating layer is produced from the film, preferably by drying. The invention, among other things, further relates to a membrane, in particular gas separation membrane, comprising a selective separating layer. | 05-26-2011 |