Patent application number | Description | Published |
20080280182 | POLYMER MEMBRANE, METHOD FOR THE PRODUCTION AND USE THEREOF - The present invention relates to an acid-doped polymer membrane based on polyazoles. The acid-doped polymer membrane can be used in a variety of applications because of its excellent mechanical properties and is useful as polymer electrolyte membrane (PEM) in PEM fuel cells. A doped polymer membrane based on polyazoles is obtained by a process comprising the steps of: A) casting a film using a solution of polymers based on polyazoles in a polar, aprotic organic solvent; B) drying the film formed in step A) until it is self-supporting; C) treating the film obtained in step B) with a treatment liquid at a temperature in the range from room temperature to the boiling point of the treatment liquid; D) drying and/or dabbing the film treated according to step C) to remove the treatment liquid from step C); and E) doping the film treated according to step D) with a doping agent. | 11-13-2008 |
20100047669 | Multilayer electrolyte membrane - The present invention relates to a proton-conducting multilayer electrolyte membrane with a barrier layer, a process for producing it and a fuel cell containing such a membrane. | 02-25-2010 |
20100164148 | POLYMER MEMBRANE, METHOD FOR THE PRODUCTION AND USE THEREOF - The present invention relates to an acid-doped polymer membrane based on polyazoles. The acid-doped polymer membrane can be used in a variety of applications because of its excellent mechanical properties and is useful as polymer electrolyte membrane (PEM) in PEM fuel cells. A doped polymer membrane based on polyazoles is obtained by a process comprising the steps of: A) casting a film using a solution of polymers based on polyazoles in a polar, aprotic organic solvent; B) drying the film formed in step A) until it is self-supporting; C) treating the film obtained in step B) with a treatment liquid at a temperature in the range from room temperature to the boiling point of the treatment liquid; D) drying and/or dabbing the film treated according to step C) to remove the treatment liquid from step C); and E) doping the film treated according to step D) with a doping agent. | 07-01-2010 |
20100167163 | PROTON-CONDUCTING MEMBRANE AND THE USE OF THE SAME - The invention relates to a novel proton-conducting polymer membrane based on polyazols. Said polymer membrane can be used in a variety of ways due to its outstanding chemical and thermal properties and is especially suitable as a polymer electrolyte membrane (PEM) for producing membrane electrode units for so-called PEM fuel cells. | 07-01-2010 |
20100216051 | PROTON-CONDUCTING POLYMER MEMBRANE COMPRISING POLYAZOLE BLENDS AND ITS USE IN FUEL CELLS - The present invention relates to a proton-conducting polymer membrane which comprises polyazole blends and is obtainable by a process comprising the steps
| 08-26-2010 |
20100227252 | PROTON-CONDUCTING POLYMER MEMBRANE COMPRISING POLYMERS CONTAINING PHOSPHONIC ACID GROUPS AND ITS USE IN FUEL CELLS - The present invention relates to a proton-conducting polymer membrane comprising polymers containing phosphonic acid groups which is obtainable by a process comprising the steps
| 09-09-2010 |
20110288187 | PROTON-CONDUCTING MEMBRANE AND THE USE OF THE SAME - The present invention relates to a novel proton-conducting polymer membrane based on polyazoles which can, because of its excellent chemical and thermal properties, be used in a variety of ways and is particularly useful as polymer electrolyte membrane (PEM) to produce membrane electrode units for PEM fuel cells. | 11-24-2011 |
20130095409 | METHOD FOR CONDITIONING MEMBRANE-ELECTRODE-UNITS FOR FUEL CELLS - The present invention relates to a method for the conditioning of membrane electrode assemblies for fuel cells in which the output of the membrane electrode assemblies used can be increased and therefore the efficiency of the resulting polymer electrolyte membrane fuel cells can be improved. | 04-18-2013 |
Patent application number | Description | Published |
20090302135 | Protective Encapsulation - An electrical device such as a piezoelectric actuator is protected against permeation by injurious fluids such as fuel (diesel/gasoline) and water by encapsulating the device with a shape memory metallic material. The shape memory metallic material may be in the form of a tube manufactured to the required dimensions for encapsulation of the device. The tube may then be plastically deformed, such as by stretching, before being placed over the device and heated above its transformation temperature to recover its original shape. The invention is particularly suitable for protecting passivated piezoelectric actuators. | 12-10-2009 |
20090304957 | Method for Enshrouding an Actuator - A method for enshrouding an actuator for use in a fuel injector, comprising the steps of providing an actuator having a body section, a first end piece and a second end piece; providing a shroud having first and second ends; applying a sealant material to at least one portion of an exterior surface of the end pieces, and/or to at least one part of the shroud; and enshrouding the actuator with the shroud, such that the sealant material provides an intermediate layer between the end pieces and the shroud and forms a fluid-tight seal between them. | 12-10-2009 |
20100180865 | Barrier Coatings for a Piezoelectric Device - Provided are barrier coatings and methods for applying barrier coatings to piezoelectric actuators that are intended for use in automotive fuel injectors. The barrier coatings are characterised by the presence of at least one organic layer, and additionally metal and/or non-metallic inorganic layers. The barrier coatings described show advantage in resisting permeation by liquid fuel, water and other contaminants. | 07-22-2010 |
20100258086 | Piezoelectric Device - A piezoelectric device comprising a device body bearing encapsulation means to protectively encapsulate the device body wherein the encapsulation means includes an ion exchange membrane. | 10-14-2010 |
20100264780 | Piezoelectric Actuator - A piezoelectric actuator ( | 10-21-2010 |