Fuel-cell flow plate and gas diffusion layer

Fuel-cell flow plate and gas diffusion layer

the first crystallization. The remaining mother liquor is molasses. Patent number." W O 01/14595 Inventors: R.C. Reisig, M. Donovan, R.E Jansen, M. Hl...

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the first crystallization. The remaining mother liquor is molasses. Patent number." W O 01/14595 Inventors: R.C. Reisig, M. Donovan, R.E Jansen, M. Hlavacek, G. Walker, J.C. Williams Publication date: 1 March 2001

therefore they are useful in the fields of pharmacy, medicine and the like. Patent number." W O 01/14047 Inventors: S. Ide, T. Noda Publication date: 1 March 2001

Applicant." Plug Power, USA

Continuous membrane reactor

Applicant." International Fuel Cells, USA

This patent describes a gas-diffusion layer which is usable with a fuel cell. It includes a material which has been adapted in such a way as to permit a reactant used by the fuel cell to diffuse through the material. The material includes flow channels for communicating the reactant, so that at least a portion of the reactant diffuses through the material to the membrane of a fuel cell. The gas diffusion layer may be received by a recessed portion of a plate, Patent number: W O 01/15257 Inventors: G.A. Eisman, WB. Maynard, R.H. Farkash, C.M. Carlstrom Publication date: 1 March 2001

Applicant." Agouron Pharmaceuticals, USA

Water from a solid polymer membrane [PEM] fuel cell, which collects on the oxidant side of the membrane, is removed from the active area of the cells in a fuel-cell power plant, by being absorbed into porous carbon bodies, one of which contacts the membrane. Some of the treated carbon bodies also can be used to supply water to the anode side of the membrane, in order to minimize anodeside membrane drying. The pores in the carbon body are partially filled, or coated, with precursors of metal oxy-hydroxide compounds which, when converted, will impart increased wettability and water absorption capacity to the carbon body. Hydroxides of the filler compounds are applied to the carbon body and are heated to convert them into oxy-hydroxides. In this patent the term 'oxyhydroxide' includes oxy-hydroxides, oxyhydroxide hydrates, and oxide hydrates. Processing temperatures are low enough so as nor to subject the bodies, which are being impregnated, to &stabilization. Patent number." W O 01 / 17050 Inventor: N.E. Cipollni Publication date'." 8 March 2001

Patents Fuel-cell flow plate and gas diffusion layer

Porous carbon for PEM fuel cell Details are given of efficient synthetic routes for the preparation of "rhinovirus protease' inhibitors (key intermediates which are useful in those synthetic routes), as well as a continuous membrane reactor useful for those synthetic routes. These compounds, and pharmaceutical compositions which contain these compounds, are suitable for treating patients or hosts infected with one or more 'picornaviruses'. Patent number: W O 01 / 14576 Inventors:J. Tao, S. Babu, R. Dagnino Jr., Q. Tian, T.P. Remarchuk, K.S. Mcgee, N.K. Nayyar, J.T. Moran Publication date: 1 March 2001

Diesel exhaust particulate filter system

Salt-water desalination process

Applicant: Bekaert, Belgium

Applicant: LET Leading Edge Technologies

A method is provided for regenerating a filter used in a diesel exhaust particulate filter system. The method comprises a number of steps which involve providing at least one porous membrane; using this membrane at a filter during a filtration period; and also using the membrane as a 'surf:ace combustion burner', during a regeneration period. Patent number: W O 01 / 14696 Inventor." W. Marrecau Publication date: 1 March 2001

Sugar-cane membrane filtration process Applicants: Tate & Lyle, USA; and Tate & Lyle

Ltd, UK This invention is directed to an improved desalination process to produce potable water. The process represents an improvement of hybrid membrane and desalination technologies. h comprises the operation of an ion-selective membrane at a variable pressure as a function of the cost of electricity to form softened salt-water which is blended in variable proportions (to increase the top operating temperature of the desalination system and increase recovery of potable water) with untreated salt water. Patent number: WO 01/14256 Inventor: L. Awerbuch Publication date: 1 March 2001

Industries, UK This invention relates to a process for producing sugar from cane. It involves grinding or macerating sugar cane (or pieces of cane) into pulp; separating the juice from the pulp; and filtering the separated juice through an ultrafihration membrane, for example, to produce a retentate and a permeate. In the first step, the cane is cut into pieces with an average fibre length of less than 10 mm (preferably less than 5 mm), with a fibre diameter of about 200 pin or less. The mechanical separation of juice from cane pieces can be achieved by filtration or centrifugation. It is preferable to adjust the pH of the separated juice to at least 7 before membrane filtration is used (more preferably to at least about 7.5, for example, by adding lime or sodium hydroxide). The permeate can be evaporated and crystallized by conventional means to produce white sugar. The 'mother' liquor from this first crystallization can be crystallized further (usually twice more), and the sugar obtained can either be used directly as a product, or re-melted with the feed used in


Filter membranes eliminate viruses Applicant: Asahi Chemical Industry Co, Japan Filter membranes have been developed which can be used to efficiently eliminate pathogens (such as viruses) from solutions of drugs, or physiologically active substances employed as starting materials for pharmaceuticals, which are contaminated. These filter membranes, which can simultaneously achieve favourable performance when eliminating small viruses and offer a high physiologically active substance-permeability, can be obtained by controlling the membrane characteristics to give a ratio (BP/'y) of the bubble point (BP) to the surface tension 7 of 110 or above, and/or logarithmic elhnination ratios of swine 'parvovirus' at 0-51/m e filtration, and at 50-55 l/m 2 filtration of each 3 or above, and regulating the permeability, for 'bovine immunoglobulin', where the monomer content amounts to at least 80% or above. These filter membranes make it possible to provide drugs, or starting materials for drugs, with little fear of the contamination with viruses, and

Capillary collapse-resistant micro-porous material Applicant: 3M Innovative Properties, USA The subject of this patent is a micro-porous material, comprising a polypropylene polymer with at least 20% crystallinit> and a cmnpatible, amorphous, glassy polymer, where the polymers are miscible in a compound when heated above the melting temperature of the polypropylene polymer and where a polypropylene polymer phase separates from the compound when cooled below the crystallization temperature of the polypropylene polymer. The micro-porous material is made by a thermally induced phase-separation process, using a compound such as mineral oil to form one phase containing both polymers. The pores of the microporous material resist collapse during processing. Membranes made from this material are useful as battery separators, with a good combination of strength, porosity and ionic resistance when imbibed with an electrolyte. Patent number: W O 01 / 16229 Inventors: P.D. Radovanovic, M.A. Perez, S.D. Thomas Publication date: 8 March 2001

Multiple membrane filtration assemblies Applicant: Zenon Environmental, Canada The limitation of the number of cassettes in an assembly which is currently used for producing

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