Patents Assigned to Technical Fibre Products Limited
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Patent number: 10424795Abstract: A porous gas diffusion substrate that includes: (a) a porous non-woven web comprising carbon fibers; and (b) a carbonaceous residue; wherein the carbonaceous residue is embedded within the porous non-woven web; (c) a fluorinated polymer; and (d) inert particles wherein at least some of the carbon fibers of the porous non-woven web have a coating comprising the fluorinated polymer and inert particles is disclosed.Type: GrantFiled: February 4, 2015Date of Patent: September 24, 2019Assignee: Technical Fibre Products LimitedInventors: James Matthew Cash, Michael Jeschke, Victoria Jane Wright, Jonathan David Brereton Sharman
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Patent number: 9859572Abstract: A non-woven gas diffusion substrate including: (i) a non-woven carbon fiber web; (ii) a carbon particulate material; and 10 (iii) a hydrophobic binder characterized in that the non-woven gas diffusion substrate further includes a conductive material having a x:y aspect ratio from 0.01 to 100, a x:z aspect ratio of at least 500 and a y:z aspect ratio of at least 500.Type: GrantFiled: October 17, 2012Date of Patent: January 2, 2018Assignee: Technical Fibre Products LimitedInventors: Rosemary Fisher, Ian Roy Harkness, Jonathan David Brereton Sharman, Michael Jeschke
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Patent number: 9174410Abstract: A prepreg comprising resin and at least one fiber layer and further comprising an electrically insulating layer and an electrically conducting layer is provided, and particularly wherein the conductive layer is at or near the top surface, beneath that is the insulating layer and beneath that is a fiber/resin interleaf structure.Type: GrantFiled: September 11, 2009Date of Patent: November 3, 2015Assignees: Hexcel Composites Limited, Technical Fibre Products LimitedInventors: Martin Simmons, Michael Jeschke
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Publication number: 20120251806Abstract: A magnetic material comprises a fibre matrix. The fibres of the matrix have a coating of a magnetic metal or alloy and magnetic particles are bonded to the matrix. The fibres of the matrix preferably have a core of carbon fibre.Type: ApplicationFiled: April 2, 2012Publication date: October 4, 2012Applicant: TECHNICAL FIBRE PRODUCTS LIMITEDInventors: Michael JESCHKE, Uday Jhaveri
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Patent number: 8133306Abstract: A gas diffusion substrate includes a non-woven network of carbon fibres, the carbon fibres are graphitised but the non-woven network has not been subjected to a graphitisation process. A mixture of graphitic particles and hydrophobic polymer is disposed within the network. The longest dimension of at least 90% of the graphitic particles is less than 100 ?m. A process for manufacturing gas diffusion substrates includes depositing a slurry of graphitised carbon fibres onto a porous bed forming a wet fibre network, preparing a suspension of graphitic particles and hydrophobic polymer, applying onto, and pulling the suspension into, the network, and drying and firing the network. Another process includes mixing a first slurry of graphitic particles and hydrophobic polymer with a second slurry of graphitised carbon fibres and liquid forming a third slurry, depositing the third slurry onto a porous bed forming a fibre-containing layer, and drying and firing the layer.Type: GrantFiled: June 15, 2005Date of Patent: March 13, 2012Assignees: Johnson Matthey Public Limited Company, Technical Fibre Products LimitedInventors: George Thomas Quayle, Julia Margaret Rowe, Jonathan David Brereton Sharman, Julian Andrew Siodlak, Nigel Julian Walker, Andrew James Fletcher
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Publication number: 20080268297Abstract: A gas diffusion substrate includes a non-woven network of carbon fibres, the carbon fibres are graphitised but the non-woven network has not been subjected to a graphitisation process. A mixture of graphitic particles and hydrophobic polymer is disposed within the network. The longest dimension of at least 90% of the graphitic particles is less than 100 ?m. A process for manufacturing gas diffusion substrates includes depositing a slurry of graphitised carbon fibres onto a porous bed forming a wet fibre network, preparing a suspension of graphitic particles and hydrophobic polymer, applying onto, and pulling the suspension into, the network, and drying and firing the network. Another process includes mixing a first slurry of graphitic particles and hydrophobic polymer with a second slurry of graphitised carbon fibres and liquid forming a third slurry, depositing the third slurry onto a porous bed forming a fibre-containing layer, and drying and firing the layer.Type: ApplicationFiled: June 15, 2005Publication date: October 30, 2008Applicants: Johnson Matthey Public Limited Company, Technical Fibre Products LimitedInventors: George Thomas Quayle, Julia Margaret Rowe, Jonathan David Brereton Sharman, Julian Andrew Siodlak, Nigel Julian Walker
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Patent number: 7238413Abstract: A conductive microporous sheet material comprises primary carbon fibres having a cross-sectional dimension of at least 1 ?m, secondary carbon fibres in the form of carbon nanofibres and a binding agent for binding said primary and secondary fibres. The material may be produced by a wet-laid non-woven (paper-making) process. The sheet material may be used as a gas diffusion layer for a fuel cell or an electrode material for a battery.Type: GrantFiled: April 12, 2001Date of Patent: July 3, 2007Assignee: Technical Fibre Products LimitedInventors: Stephen John Edwards, Nigel Julian Walker
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Patent number: 6949308Abstract: A fuel cell gas diffusion substrate has primary fibres, secondary fibres and one or more thermoplastic polymers for binding the primary and secondary fibres, characterized in that the secondary fibers are in the form of carbon nanofibers, and a gas diffusion electrode and membrane electrode assembly prepared therefrom are disclosed.Type: GrantFiled: April 12, 2001Date of Patent: September 27, 2005Assignees: Johnson Matthey Public Limited Company, Technical Fibre Products LimitedInventors: John Malcolm Gascoyne, Graham Alan Hards, Karen Leanne Hogarth, Thomas Robertson Ralph, Stephen John Edwards, Nigel Julian Walker
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Patent number: 6274647Abstract: A flexible intumescent material which comprises inorganic fibers and flexible organic fibers together forming a predominantly fibrous matrix, an elastomeric binder and an intumescent substance and which has been compressed at a moisture content of less than 5% by weight. The intumescent material may be produced by wet laying an aqueous slurry of inorganic fibers, flexible organic fibers, the intumescent substance and the elastomeric binder onto a water-pervious support, withdrawing water from the slurry to form a sheet, drying the sheet to a moisture content of less then 5% by weight and then compressing the sheet material.Type: GrantFiled: April 1, 1999Date of Patent: August 14, 2001Assignee: Technical Fibre Products LimitedInventors: Diane S. Knight, Simon Pinch, Nigel Julian Walker