| Patent application number | Description | Published |
|---|
| 20090163692 | AROMATIC POLYETHERS - An aromatic polyether comprising structural units derived from a halosulfone sulfonate having structure (I): | 06-25-2009 |
| 20090188857 | PERMANENT HYDROPHILIC POROUS COATINGS AND METHODS OF MAKING THEM - A membrane includes a porous base membrane and a hydrophilic coating. The coating comprises a hydrophilic additive and a hydrophilic polymer derivatized with an electron beam reactive group adapted to form a radical under high energy irradiation. In some embodiments, the membrane comprises a fluoropolymer. Also disclosed are processes for forming the membrane. | 07-30-2009 |
| 20090191357 | PROCESSES FOR FORMING PERMANENT HYDROPHILIC POROUS COATINGS ONTO A SUBSTRATE, AND POROUS MEMBRANES THEREOF - A membrane includes a base membrane; and an electron beam functionalized coating, the coating comprising a polyvinyl alcohol, a polyvinyl alcohol-polyvinyl amine copolymer, a polyvinyl amine, and derivatives thereof functionalized with an electron beam reactive group adapted to form a radical under high energy irradiation. Also disclosed are processes for forming the membrane. | 07-30-2009 |
| 20090191398 | MEMBRANES COMPRISING HYDROPHILIC COATINGS - The present invention provides a membrane useful for water purification comprising a porous base membrane and a hydrophilic coating disposed on the porous base membrane. The hydrophilic coating comprises structural units derived from a hydrophilic polymer and structural units derived from a first electron beam reactive group, and structural units derived from a second electron beam reactive group. The hydrophilic polymer has a number average molecular weight of greater than 2500 Daltons and comprises at least two electron beam reactive groups having different structures. The hydrophilic coating is covalently bound to the porous base membrane through structural units derived from the electron beam reactive groups. Also disclosed are processes for forming and employing the membrane. | 07-30-2009 |
| 20090191399 | PERMANENT HYDROPHILIC POROUS COATINGS ONTO A SUBSTRATE AND POROUS MEMBRANES THEREOF - A membrane includes a base membrane; and an electron beam functionalized coating, the coating comprising a polyvinyl alcohol, a polyvinyl alcohol-polyvinyl amine copolymer, a polyvinyl amine, and derivatives thereof functionalized with an electron beam reactive group adapted to form a radical under high energy irradiation. Also disclosed are processes for forming the membrane. | 07-30-2009 |
| 20090297911 | POLYELECTROLYTE MEMBRANES AND METHODS FOR MAKING - A polymer electrolyte membrane includes a porous base membrane and electrolytes dispersed within the pores of the base membrane. The electrolytes include metal oxide compounds having acid functionality. A process for making the membrane is also provided. The membrane is compatible, durable, highly conductive, mechanically strong and dimensionally stable. | 12-03-2009 |
| 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 |
| 20100056652 | PROCESSES FOR FORMING HYDROPHILIC MEMBRANES AND POROUS MEMBRANES THEREOF - A process of forming an integral hydrophilic membrane from a porous hydrophobic membrane includes exposing a porous hydrophobic polymer membrane to a plasma, wherein the plasma contains reactive carbon dioxide species configured to covalently bond carboxylic functional groups to a surface of the polymer membrane and form the integral hydrophilic membrane. | 03-04-2010 |
| 20100155325 | PARTICLE-TEMPLATED MEMBRANES, AND RELATED PROCESSES FOR THEIR PREPARATION - A method for the formation of a membrane is described. A collection of substantially spherical particles formed from a selected material is contacted with at least one reactive material. The reactive material is cured or otherwise polymerized by various techniques, so that it forms a matrix that substantially surrounds and contains the particles. A portion of the particle material is then removed, so that the matrix contains a pattern of pores that are permeable to selected substances in solution. In some instances, the matrix is formed by an interfacial reaction between at least two reactive materials. Related filtration membranes are also described. | 06-24-2010 |
| 20100167100 | COMPOSITE MEMBRANE AND METHOD FOR MAKING - A composite membrane includes a compatibilized porous base membrane and an ion exchange material, which is impregnated into the compatibilized porous base membrane. The base membrane is compatibilized by coating a primer to external and internal surfaces of the porous base membrane and crosslinking the primer. A method for making the membrane, a proton exchange membrane for a fuel cell and a method form making the proton exchange membrane are also provided. The composite membrane is durable, compatible, highly conductive and mechanically stable. | 07-01-2010 |
