W.L, GORE & ASSOCIATES CO., LTD. Patent applications |
Patent application number | Title | Published |
20160126560 | FUEL CELL ELECTRODE CATALYST AND METHOD FOR ACTIVATING CATALYST - The present invention addresses the problem of providing: a core-shell catalyst capable of achieving, when evaluated for a fuel cell, the catalytic activity anticipated from the catalyst activity value obtained using a rotating disc electrode (RDE); and a method for activating a core-shell catalyst in said manner. The present invention relates to a fuel cell catalyst, which is an electrode catalyst having a core-shell structure and is characterized in that at least 99% of the core member is covered by the shell member and the halogen content is not more than 5000 ppm. The present invention also relates to a method for activating said core-shell catalyst, the method comprising: a process for dispersing the core-shell catalyst in a dispersion solvent; a process for separating impurities from said core-shell catalyst by blowing a gas that has reducing properties or a mixed gas comprising same into said dispersion solvent; and a process for removing said impurities. | 05-05-2016 |
20140061122 | Filter For Water Treatment Filtering and Method For Producing The Same - The problem to be solved by the present invention is to provide a filter medium for a water treatment filter having contradictory characteristics, that is, hydrophilicity and chemical resistance, and a long life, and to provide the production method thereof. A filter medium for a water treatment filter according to the present invention is characterized in comprising a porous base material having a hydrophilic coating layer; wherein the hydrophilic coating layer has a cross-linked hydrophilic polymer and a high electron density part; a hydrophilic polymer in the cross-linked hydrophilic polymer is cross-linked with an aliphatic saturated hydrocarbon group which may contain one or more functional groups selected from a group consisting of an ether group, a hydroxy group and an amino group; the high electron density part has π electrons; and the high electron density part is covalently bonded to the cross-linked hydrophilic polymer. | 03-06-2014 |
20130330649 | Polymer Electrolyte Fuel Cell - An object of the invention is to provide a fuel cell having improved long-term durability. | 12-12-2013 |
20120174789 | Vent Plug - An object is to provide a vent plug having a structure in which an air-permeable membrane is unlikely to be damaged. More specifically, a vent plug is produced, which includes: a cylindrical member | 07-12-2012 |
20110287335 | REINFORCED ELECTROLYTE MEMBRANE FOR FUEL CELL, MEMBRANE-ELECTRODE ASSEMBLY FOR FUEL CELL, AND POLYMER ELECTROLYTE FUEL CELL COMPRISING THE SAME - It is an object of the present invention to provide a fuel cell electrolyte membrane reinforced with a porous substrate which has excellent durability and in which the amount of cross leakage as a result of chemical deterioration of electrolyte membrane components due to the presence of peroxide and/or radicals is particularly reduced. The present invention relates to an electrolyte membrane for a fuel cell comprising a polyelectrolyte, which contains a porous substrate and a radical scavenger dispersed in the polyelectrolyte. | 11-24-2011 |