| Patent application number | Description | Published |
|---|
| 20080203012 | MEMBRANE, APPARATUS, AND ASSOCIATED METHOD - A membrane is provided that is formed from a composition. The composition comprises a polyarylene ether polymer or copolymer comprising a zwitterion; or comprises a polyarylene polymer or copolymer comprising a zwitterion. | 08-28-2008 |
| 20080207822 | COMPOSITION AND ASSOCIATED METHOD - Provided is a composition including a polyarylene ether polymer or copolymer comprising a zwitterionic, group. The zwitterionic group can derive from a zwitterionic precursor such as 4-(2-hydroxyethyl)-1-piperazine ethane sulfonic acid and comprises at least one atom of sulfur, phosphorus, or nitrogen. Embodiments also relate to an article, made from the composition, such as a membrane. | 08-28-2008 |
| 20080312349 | METHOD OF MAKING AND USING MEMBRANE - A process is provided that includes attaching a zwitterion to a polymer or a copolymer, wherein the polymer or copolymer comprises a polyarylene ether or a polyarylene. | 12-18-2008 |
| 20090163692 | AROMATIC POLYETHERS - An aromatic polyether comprising structural units derived from a halosulfone sulfonate having structure (I): | 06-25-2009 |
| 20100029864 | POLYARYLETHER COMPOSITION AND MEMBRANE - A composition including a polyarylether copolymer is provided. The copolymer includes a polyarylether backbone; and a sulfonated oligomeric group bonded to the polyarylether suitable for use as a cation conducting membrane. Method of bonding a sulfonated oligomeric group to the polyarylether backbone to form a polyarylether copolymer. The membrane may be formed from the polyarylether copolymer composition. The chain length of the sulfonated oligomeric group may be controlled to affect or control the ion conductivity of the membrane. | 02-04-2010 |
| 20100297429 | COMPOSITE MEMBRANE AND METHOD OF MAKING - The present invention provides a composite membrane comprising a porous base membrane and a polyamide coating disposed on said porous base membrane, said polyamide coating comprising a C | 11-25-2010 |
| 20110049055 | REVERSE OSMOSIS COMPOSITE MEMBRANES FOR BORON REMOVAL - Improved methods for reducing boron concentration in seawater or brackish water, while simultaneously maintaining or improving the salt rejection of membrane and flow performance of polyamide reverse osmosis (RO) membranes include contacting the water with a composite membrane comprising moieties derived from an aromatic sulfonyl halide, a heteroaromatic sulfonyl halide, a sulfinyl halide; a sulfenyl halide; a sulfuryl halide; a phosphoryl halide; a phosphonyl halide; a phosphinyl halide; a thiophosphoryl halide; a thiophosphonyl halide, an isocyanate, a urea, a cyanate, an aromatic carbonyl halide, an epoxide or a mixture thereof. | 03-03-2011 |
