Chemistry: electrical current producing apparatus – product – and – Having earth feature
Reexamination Certificate
2006-05-23
2006-05-23
Ryan, Patrick Joseph (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Having earth feature
C429S047000, C429S006000, C429S006000, C428S367000, C428S297400, C428S105000, C442S341000, C442S327000, C442S334000, C442S361000, C442S344000, C442S349000
Reexamination Certificate
active
07049025
ABSTRACT:
A novel flexible non-woven carbon fibre gas diffusion substrate comprising a plurality of first carbon fibres orientated in the x-, y- and optionally z-directions, said first fibres being bonded with a thermoplastic polymeric substance, and a carbon based filler material, characterised, in that the flexible non-woven carbon fibre gas diffusion substrate has a total density of greater than 0.35 g/cm3, and a gas diffusion electrode obtained therefrom is disclosed. Also disclosed is a process for the manufacture of the substrate and electrode.
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Cooper Susan Joy
Gascoyne John Malcolm
Hogarth Karen Leanne
Ralph Thomas Robertson
Johnson Matthey Public Limited Company
Martin Angela J.
RatnerPrestia
Ryan Patrick Joseph
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