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GB1357347A - Permeable membranes - Google Patents

Permeable membranes

Info

Publication number
GB1357347A
GB1357347A GB5677270A GB5677270A GB1357347A GB 1357347 A GB1357347 A GB 1357347A GB 5677270 A GB5677270 A GB 5677270A GB 5677270 A GB5677270 A GB 5677270A GB 1357347 A GB1357347 A GB 1357347A
Authority
GB
United Kingdom
Prior art keywords
porous
substrate
permeable
film
blocking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5677270A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UK Secretary of State for Trade and Industry
Original Assignee
UK Secretary of State for Trade and Industry
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by UK Secretary of State for Trade and Industry filed Critical UK Secretary of State for Trade and Industry
Priority to GB5677270A priority Critical patent/GB1357347A/en
Publication of GB1357347A publication Critical patent/GB1357347A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B01D71/36—Polytetrafluoroethene
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/08—Alloys with open or closed pores
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

1357347 Coated thin membranes TRADE & INDUSTRY SECRETARY OF STATE FOR 19 Nov 1971 [30 Nov 1970] 56772/70 Heading C7F [Also in Divisions B2 and H1] A thin permeable, but non-porous, membrane is made by blocking the pores of a porous substrate with a preferentially removable poreblocking material to give a smooth surface comprising both substrate and pore-blocking material, depositing on the smooth surface a permeable non-porous film, and removing the pore-blocking material. The porous substrate may be PTFE or polyethylene, and the poreblocking material may be ice, deposited by exposing the cooled substrate to water vapour, or a gum, a gel, or an inorganic salt, deposited from solution. The permeable film may be a sputtered PTFE film, and this may be subsequently metallised, e.g. with Pt by sputtering. A poreblocker such as ice is removed by heating; the others are removed using a solvent. The body so formed may be used as a fuel cell electrode.
GB5677270A 1970-11-30 1970-11-30 Permeable membranes Expired GB1357347A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5677270A GB1357347A (en) 1970-11-30 1970-11-30 Permeable membranes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5677270A GB1357347A (en) 1970-11-30 1970-11-30 Permeable membranes

Publications (1)

Publication Number Publication Date
GB1357347A true GB1357347A (en) 1974-06-19

Family

ID=10477503

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5677270A Expired GB1357347A (en) 1970-11-30 1970-11-30 Permeable membranes

Country Status (1)

Country Link
GB (1) GB1357347A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524814A1 (en) * 1982-04-09 1983-10-14 Permelec Electrode Ltd PROCESS FOR THE PRODUCTION OF ION EXCHANGE MEMBRANES PROVIDED WITH A COATING FOR ELECTROLYSIS
GB2203758A (en) * 1987-03-31 1988-10-26 Central Glass Co Ltd Method of forming coating film of fluororesin by physical vapor deposition
WO1996017675A2 (en) * 1994-12-08 1996-06-13 Fsm Technologies Limited Method of treating membranes
WO2005023407A2 (en) * 2003-07-10 2005-03-17 Praxair Technology, Inc. Method of forming ion transport membrane structure
US7901730B2 (en) * 2004-04-26 2011-03-08 Johnson Research & Development Co., Inc. Thin film ceramic proton conducting electrolyte
CN110066935A (en) * 2018-01-23 2019-07-30 清华大学 Foam metal preparation facilities and preparation method

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524814A1 (en) * 1982-04-09 1983-10-14 Permelec Electrode Ltd PROCESS FOR THE PRODUCTION OF ION EXCHANGE MEMBRANES PROVIDED WITH A COATING FOR ELECTROLYSIS
GB2119405A (en) * 1982-04-09 1983-11-16 Permelec Electrode Ltd Process for the production of coated ion exchange membranes for use in electrolysis
GB2203758A (en) * 1987-03-31 1988-10-26 Central Glass Co Ltd Method of forming coating film of fluororesin by physical vapor deposition
US4863762A (en) * 1987-03-31 1989-09-05 Central Glass Company, Limited Method of forming coating film of fluororesin by physical vapor deposition
GB2203758B (en) * 1987-03-31 1991-06-19 Central Glass Co Ltd Method of forming coating film of fluororesin by physical vapor deposition
WO1996017675A2 (en) * 1994-12-08 1996-06-13 Fsm Technologies Limited Method of treating membranes
WO1996017675A3 (en) * 1994-12-08 1996-12-19 Fsm Technologies Ltd Method of treating membranes
WO2005023407A2 (en) * 2003-07-10 2005-03-17 Praxair Technology, Inc. Method of forming ion transport membrane structure
WO2005023407A3 (en) * 2003-07-10 2006-07-20 Praxair Technology Inc Method of forming ion transport membrane structure
US7901730B2 (en) * 2004-04-26 2011-03-08 Johnson Research & Development Co., Inc. Thin film ceramic proton conducting electrolyte
CN110066935A (en) * 2018-01-23 2019-07-30 清华大学 Foam metal preparation facilities and preparation method
CN110066935B (en) * 2018-01-23 2020-05-12 清华大学 Foam metal preparation device and preparation method

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees