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| Number | Title | Issue Date |
| 7435498 | Polymer electrolyte membranes crosslinked by nitrile trimerization A method is provided for making a crosslinked polymer electrolyte, typically in the form of a membrane for use as a polymer electrolyte membrane in an electrolytic cell such as a fuel cell, by trimerization of nitrile groups contained on groups pendant from the poly... | 10/14/2008 |
| 7432009 | Lamination apparatus and methods Components for the manufacture of polymer electrolyte membrane fuel cells are provided, as well as apparatus and automatable methods for their manufacture by rotary die cutting and by lamination of various layers to form membrane electrode assemblies. A method and a... | 10/07/2008 |
| 7419741 | Fuel cell cathode catalyst A fuel cell cathode catalyst is provided which comprises nanostructured elements comprising microstructured support whiskers bearing nanoscopic catalyst particles. The nanoscopic catalyst particles are made by the alternating application of first and second layers, ... | 09/02/2008 |
| 7411022 | Reinforced polymer electrolyte membrane A method is provided for making a reinforced polymer electrolyte membrane, such as may be used in electrolytic cells such as fuel cells, by mixing a sulfonate- or sulfonyl halide-functional polymer with a bisamidine compound and subsequently trimerizing the amidine ... | 08/12/2008 |
| 7348088 | Polymer electrolyte membrane A polymer electrolyte membrane is provided having a thickness of 90 microns or less and comprising a polymer, said polymer comprising a highly fluorinated backbone and recurring pendant groups according to the formula: YOSO2—CF2—C... | 03/25/2008 |
| 7326737 | Polymer electrolyte membranes crosslinked by direct fluorination A method is provided for making a crosslinked polymer by direct fluorination of a non-perfluorinated polymer comprising first pendent groups which comprise sulfonyl halide groups or by direct fluorination of a polymer mixture of a first polymer which is a non-perflu... | 02/05/2008 |
| 7311990 | Form-in-place fastening for fuel cell assemblies A fuel cell sub-assembly includes first and second flow field plates each comprising several fastener apertures defined at a number of fastening locations. A membrane electrode assembly is situated between the first and second flow field plates and includes several ... | 12/25/2007 |
| 7297428 | Registration arrangement for fuel cell assemblies A registration arrangement for a fuel cell stack assembly incorporates registration posts and registration apertures or recesses. Fuel cell assemblies of the stack may include first and second flow field plates and a membrane electrode assembly (MEA) having an activ... | 11/20/2007 |
| 7265162 | Bromine, chlorine or iodine functional polymer electrolytes crosslinked by e-beam A method is provided for making a crosslinked polymer electrolyte, typically in the form of a membrane for use as a polymer electrolyte membrane in an electrolytic cell such as a fuel cell, as well as the polymer so made, the method comprising application of electro... | 09/04/2007 |
| 7258917 | Adhesive detackification The invention describes a method of curing a polymerizable material containing ethylenically unsaturated bonds at a temperature of 60° C. or less, comprising the steps of (a) providing a curative comprising an effective amount of a light-stable isomer of a 2,4,5-tr... | 08/21/2007 |
| 7259208 | Reinforced polymer electrolyte membrane A method is provided for making a reinforced polymer electrolyte membrane, such as may be used in electrolytic cells such as fuel cells, by mixing a sulfonate- or sulfonyl halide-functional polymer with a bisamidine compound and subsequently trimerizing the amidine ... | 08/21/2007 |
| 7220344 | Film based addressable programmable electronic matrix articles and methods of manufacturing and using the same An electronic device adapted for performing molecular biological processes. The device includes a flexible polymeric substrate having a first surface and a second surface. A plurality of microlocations interrupt the first surface, and each of said microlocations inc... | 05/22/2007 |
| 7217471 | Membrane electrode assembly with compression control gasket A method is provided for making a gasketed fuel cell MEA comprising the steps of: selecting an FTL sheet material; selecting a target level of compression C % for use of said FTL sheet material in a fuel cell MEA; measuring die pressure Pt for which the FTL sheet ma... | 05/15/2007 |
| 7214740 | Fluorinated ionomers with reduced amounts of carbonyl end groups The present invention is a fluoropolymer comprising a plurality of pendent groups terminating in —CF2SO3X, —CF2SO2F, or combinations thereof, where X is selected from a group consisting of H+ and a monovalen... | 05/08/2007 |
| 7195690 | Roll-good fuel cell fabrication processes, equipment, and articles produced from same Fabricating roll-good fuel cell material involves laminating first and second bonding material webs having spaced apart windows to first and second surfaces of a fuel cell membrane web. First and second active regions of the membrane web are positioned within the re... | 03/27/2007 |
| 7179847 | Polymer electrolytes crosslinked by e-beam A method of making a crosslinked polymer is provided as well as the polymer so made, the method comprising the steps of: providing a highly fluorinated fluoropolymer, typically a perfluorinated fluoropolymer, comprising pendent groups which include a group according... | 02/20/2007 |
| 7171881 | Angled product transfer conveyor A vacuum conveyor is provided comprising an endless perforated belt which extends over a first vacuum plate and a second vacuum plate, which vacuum plates may be maintained at different air pressures and may be situated at different angles relative to horizontal. An... | 02/06/2007 |
| 7173067 | Polymer electrolyte membranes crosslinked by direct fluorination A method is provided for making a crosslinked polymer by direct fluorination of a non-perfluorinated polymer comprising first pendent groups which comprise sulfonyl halide groups or by direct fluorination of a polymer mixture of a first polymer which is a non-perflu... | 02/06/2007 |
| 7163761 | Fuel cell stack A fuel cell stack is provided comprising fuel cell modules least compression plates; and at least one plurality of mechanical linkages connecting a pair of compression plates located on either side of at least one fuel cell module, which may be engaged to maintain a... | 01/16/2007 |
| 7160424 | Electrophoretically deposited hydrophilic coatings for fuel cell diffuser/current collector A method is provided for making a hydrophilic carbon fiber construction, such as a fuel cell gas diffusion layer or diffuser/current collector, by electrophoretic deposition of a metal oxide selected from Type I or Type II, where Type I consists of metal oxides havi... | 01/09/2007 |
| 7160928 | Acid functional fluoropolymer membranes and method of manufacture Methods are provided to make acid functional fluoropolymers by: a) dehydrofluorinating a starting fluoropolymer with a dehydrofluorinating agent to form an unsaturated fluoropolymer; b) adding an acidifiable nucleophilic functionalizing agent to a double bond of the... | 01/09/2007 |
| 7126160 | II-VI/III-V layered construction on InP substrate A layered construction is provided comprising an InP substrate and alternating layers of II-VI and III-V materials. The alternating layers of II-VI and III-V materials are typically lattice-matched or pseudomorphic to the InP substrate. Typically the II-VI material ... | 10/24/2006 |
| 7112614 | Crosslinked polymer A method is provided for obtaining crosslinked polymers, particularly fluorinated polymers having pendent sulfonic acid groups, by crosslinking through pendent groups which include a sulfonyl chloride group (—SO2Cl). The sulfonyl chloride group may be r... | 09/26/2006 |
| 7087339 | Fuel cell membrane electrode assembly with sealing surfaces The present invention provides a gasketed fuel cell membrane electrode assembly comprising: a polymer electrolyte membrane; layers of anode and cathode catalyst; anode-side and cathode-side fluid transport layer; and anode-side and cathode-side gaskets; where the ga... | 08/08/2006 |
| 7071271 | Aqueous emulsion polymerization of functionalized fluoromonomers A method is provided for aqueous emulsion co-polymerization of two or more fluoromonomers comprising the steps of: 1) forming an aqueous pre-emulsion by mixing a fluoromonomer according to formula I: F2C═CF—R1—SO2X ... | 07/04/2006 |
| 7060738 | Polymer electrolytes crosslinked by ultraviolet radiation A method is provided for making a crosslinked polymer electrolyte, typically in the form of a membrane for use as a polymer electrolyte membrane in an electrolytic cell such as a fuel cell, as well as the polymer so made, the method comprising application of ultravi... | 06/13/2006 |
| 7060756 | Polymer electrolyte with aromatic sulfone crosslinking A method is provided for obtaining crosslinked polymers having pendent sulfonic acid groups by crosslinking through the sulfonic acid groups or their precursors with aromatic crosslinkers or aromatic pendent crosslinking groups to form aromatic sulfones. Such crossl... | 06/13/2006 |
| 7022207 | Method and apparatus for peeling a thin film from a liner A method and apparatus are provided for peeling a thin film, typically 100 microns or less in thickness, from a liner by use of a rotatable peel rod supported in an air bearing. The air bearing comprises a support plate having arcuate surfaces which are substantiall... | 04/04/2006 |
| 7018500 | Apparatus and method for singulating porous fuel cell layers using adhesive tape pick head An apparatus and method provide for singulating thin and substantially porous material layers arranged in a stack. A pick head is positioned above the stack of material layers. An adhesive tape is stabilized against the pick head through use of a vacuum between the ... | 03/28/2006 |
| 7005394 | Tackified thermoplastic-epoxy pressure sensitive adhesives A pressure sensitive adhesive composition comprised of: a) 75 to 99.9 weight percent of a tackified thermoplastic polymer component comprising 1) 1–99 weight percent of a thermoplastic polymer substantially without epoxy-binding or ester functions, and 2) 1–99 w... | 02/28/2006 |
| 6989214 | Unitized fuel cell assembly A unitized fuel cell assembly includes a first flow field plate, a second flow field plate, and a membrane electrode assembly (MEA) provided between the first and second flow field plates. A hard stop arrangement, in one configuration, is provided between the first ... | 01/24/2006 |
| 6979383 | One-step method of bonding and sealing a fuel cell membrane electrode assembly A method is provided for making an edge-sealed fuel cell membrane electrode assembly comprising the steps of: i) providing a suitable membrane electrode assembly lay-up; ii) positioning a suitable annular layer of a thermoplastic; and iii) applying pressure and heat... | 12/27/2005 |
| 6961476 | Autothresholding of noisy images The present invention provides to image processing methods that include a method of selecting an optimal threshold value (to) for an image comprising the steps of: obtaining an image; selecting a test segment of the said image; determining the mean featur... | 11/01/2005 |
| 6948612 | Polyimide-containing coating composition and film formed from the same To provide a coating composition of a soluble aromatic polyimide having good heat resistance and mechanical strength. As a soluble polyimide, a compound of the formula (I) in which R's represent independently from one another H, halogen, an alkyl group or an alkoxy ... | 09/27/2005 |
| 6913792 | Hybrid materials employing PPE/polystyrene/curable epoxy mixtures A curable melt blended composition and a method of making the composition by melt blending a thermoplastic polymer comprising polyphenylene ether (PPE) polymer and a polystyrene polymer, preferably high impact polystyrene (HIPS), and optionally a compatiblizer, with... | 07/05/2005 |
| 6868890 | Method and apparatus for peeling a thin film from a liner A method and apparatus are provided for peeling a thin film, typically 100 microns or less in thickness, from a liner by use of a rotatable peel rod supported in an air bearing. The air bearing comprises a support plate having arcuate surfaces which are substantiall... | 03/22/2005 |
| 6863838 | Zwitterionic imides Zwitterionic imide compounds are provided according to the formula: R1—SO2—N−—SO2—R2+, where R1 and R2+ are any suitable groups. Typically R1 is a... | 03/08/2005 |
| 6833412 | Acid functional fluoropolymer membranes and method of manufacture Methods are provided to make acid functional fluoropolymers by: a) dehydrofluorinating a starting fluoropolymer with a dehydrofluorinating agent to form an unsaturated fluoropolymer; b) adding an acidifiable nucleophilic functionalizing agent to a double bond of the... | 12/21/2004 |
| 6787605 | Composition of polyphenylene ether, polystyrene and curable epoxy A curable melt blended composition and a method of making the composition by melt blending a thermoplastic polymer comprising polyphenylene ether (PPE) polymer and a polystyrene polymer, preferably high impact polystyrene (HIPS), and optionally a compatiblizer, with... | 09/07/2004 |
| 6780276 | Gap adjuster for laminating rolls An apparatus and method for lamination are provided, which are advantageously used in intermittent lamination and fixed-gap lamination, the apparatus comprising first and second laminating rollers defining a laminating gap therebetween and at least one gapping block... | 08/24/2004 |
