Abstract: In polymer electrolyte membrane (PEM) fuel cells and electrolyzes, attaining and maintaining high membrane conductivity and durability is crucial for performance and efficiency. The use of low equivalent weight (EW) perfluorinated ionomers is one of the few options available to improve membrane conductivity. However, excessive dimensional changes of low EW ionomers upon application of wet/dry or freeze/thaw cycles yield catastrophic losses in membrane integrity. Incorporation of ionomers within porous, dimensionally-stable perforated polymer electrolyte membrane substrates provides improved PEM performance and longevity. The present invention provides novel methods using micromolds to fabricate the perforated polymer electrolyte membrane substrates. These novel methods using micromolds create uniform and well-defined pore structures. In addition, these novel methods using micromolds described herein may be used in batch or continuous processing.

Abstract: A flexible laminated packaging material (100) comprises a plurality of layers, at least two of which are bonded together by a layer of adhesive (108). A first layer (113) comprises a continuous metallic foil (110) and a second layer (111) comprises a continuous web of material incorporating or coated with a laser retardant additive (106). The material may be scored or cut with a laser (114, 118) so as to produce offset scores or cuts (122, 124) wherein a first cut (124) is made through the first layer (113), but not past the second layer (111) and a second cut (122) is made through the second layer (111), but not past the first layer (113). The laser retardant additive (106) attenuates the power of the laser to help control the depth of the cuts. A method of producing the material by laminating the first and second layers using an adhesive is also disclosed.

Abstract: In polymer electrolyte membrane (PEM) fuel cells and electrolyzes, attaining and maintaining high membrane conductivity and durability is crucial for performance and efficiency. The use of low equivalent weight (EW) perfluorinated ionomers is one of the few options available to improve membrane conductivity. However, excessive dimensional changes of low EW ionomers upon application of wet/dry or freeze/thaw cycles yield catastrophic losses in membrane integrity. Incorporation of ionomers within porous, dimensionally-stable perforated polymer electrolyte membrane substrates provides improved PEM performance and longevity. The present invention provides novel methods using micromolds to fabricate the perforated polymer electrolyte membrane substrates. These novel methods using micromolds create uniform and well-defined pore structures. In addition, these novel methods using micromolds described herein may be used in batch or continuous processing.

Abstract: A packaging method comprises dispensing a material continuously from a roll, forming a plurality of packages from the material, filling each package with contents and sealing each package once filled. A hanging aperture is created for each package, prior to it being formed into the package, the material having been folded or creased in the area in which the aperture is to be created.

Abstract: A flexible laminated packaging material (100) comprises a plurality of layers, at least two of which are bonded together by a layer of adhesive (108). A first layer (113) comprises a continuous metallic foil (110) and a second layer (111) comprises a continuous web of material incorporating or coated with a laser retardant additive (106). The material may be scored or cut with a laser (114, 118) so as to produce offset scores or cuts (122, 124) wherein a first cut (124) is made through the first layer (113), but not past the second layer (111) and a second cut (122) is made through the second layer (111), but not past the first layer (113). The laser retardant additive (106) attenuates the power of the laser to help control the depth of the cuts. A method of producing the material by laminating the first and second layers using an adhesive is also disclosed.

Abstract: A packaging method comprises dispensing a material continuously from a roll, forming a plurality of packages from the material, filling each package with contents and sealing each package once filled. A hanging aperture is created for each package, prior to it being formed into the package, the material having been folded or creased in the area in which the aperture is to be created.

Abstract: Compositions including carbide-containing nanorods and/or oxycarbide-containing nanorods and/or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous structures including oxycarbide-containing nanorods and/or carbide containing nanorods and/or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are also provided. The compositions and rigid porous structures of the invention can be used either as catalyst and/or catalyst supports in fluid phase catalytic chemical reactions. Processes for making supported catalyst for selected fluid phase catalytic reactions are also provided.

Abstract: An improved slider block is a length of flanged channel having a cut-out in the lower web of the channel to accommodate mounting a flat bar journalled in the cut-out. The flanged channel is resilient. The flanged channel has a length sufficient to cover the length of a base plate on which the flat bar is orthogonally mounted. The sides of the channel define a cavity having a depth corresponding to the thickness of the base plate. A pair of flanges extend inwardly over the cavity from the sides of the channel so as to define a chain-receiving slot therebetween. The base plate mounts within the cavity. The base plate is welded to a chain so that when the base plate is mounted in the cavity the chain is mounted in and along the chain-receiving slot.

Abstract: An improved slider block is a length of flanged channel having a cut-out in the lower web of the channel to accommodate mounting a flat bar journalled in the cut-out. The flanged channel is resilient. The flanged channel has a length sufficient to cover the length of a base plate on which the flat bar is orthogonally mounted. The sides of the channel define a cavity having a depth corresponding to the thickness of the base plate. A pair of flanges extend inwardly over the cavity from the sides of the channel so as to define a chain-receiving slot therebetween. The base plate mounts within the cavity. The base plate is welded to a chain so that when the base plate is mounted in the cavity the chain is mounted in and along the chain-receiving slot.

Abstract: Compositions including carbide-containing nanorods and/or oxycarbide-containing nanorods and/or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous structures including oxycarbide-containing nanorods and/or carbide containing nanorods and/or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are also provided. The compositions and rigid porous structures of the invention can be used either as catalyst and/or catalyst supports in fluid phase catalytic chemical reactions. Processes for making supported catalyst for selected fluid phase catalytic reactions are also provided.