GB1486867A - Porous sheet materials - Google Patents

Porous sheet materials

Info

Publication number
GB1486867A
GB1486867A GB17269/75A GB1726975A GB1486867A GB 1486867 A GB1486867 A GB 1486867A GB 17269/75 A GB17269/75 A GB 17269/75A GB 1726975 A GB1726975 A GB 1726975A GB 1486867 A GB1486867 A GB 1486867A
Authority
GB
United Kingdom
Prior art keywords
sheet
starch
passed
fluorinated hydrocarbon
filler
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
GB17269/75A
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.)
Chloride Group Ltd
Original Assignee
Chloride Group Ltd
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 Chloride Group Ltd filed Critical Chloride Group Ltd
Priority to GB17269/75A priority Critical patent/GB1486867A/en
Publication of GB1486867A publication Critical patent/GB1486867A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0542—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
    • C08J2201/0543—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being organic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0545—Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition
    • C08J2201/0546—Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition the non-solvent being organic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • H01M50/491—Porosity
    • 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
    • Y02E60/10—Energy storage using batteries

Abstract

1486867 Porous sheets of thermoplastic polymer CHLORIDE GROUP Ltd 23 April 1976 [25 April 1975] 17269/75 Heading C3C A porous sheet is made by forming a plastic mass of a thermoplastic polymer, particulate removable filler and an extractable organic solvent or plasticizer, forming the mixture into a sheet, removing the solvent or plasticizer by extraction with a fluorinated hydrocarbon which is liquid at ambient temperature and has a b.p. above 45‹ C. under atmospheric pressure, treating the extracted sheet to remove the fluorinated hydrocarbon and to remove the removable filler. In the examples mixtures of polyvinyl chloride, isophorone (3,3,5-trimethyl)cyclohexene - 2 - one - 1 and kerosone with particles of starch, ammonium sulphate or anhydrous sodium sulphate, and optionally glycerine were formed at elevated temperature and high shear, and the resultant powders were extruded to form sheets which were then passed through a bath of dichloromonofluoro-difluoromonochloroethane to leach out the isophorone/kerosene mixture, and then the sheet was passed into hot water to evaporate off the fluorinated hydrocarbon and the water-soluble fillers, and when starch is used as filler the sheet is then passed into boiling water to swell the starch (thereby producing rupturing of walls encapsulating the starch) and the starch is then removed from the sheet in a hydrolysis medium which is aqueous sulphuric acid. The polyvinyl chloride may be plasticized with a chlorosulphonated polyethylene of a nitrile rubber, which are not leached out during the above process.
GB17269/75A 1976-04-23 1976-04-23 Porous sheet materials Expired GB1486867A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB17269/75A GB1486867A (en) 1976-04-23 1976-04-23 Porous sheet materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17269/75A GB1486867A (en) 1976-04-23 1976-04-23 Porous sheet materials

Publications (1)

Publication Number Publication Date
GB1486867A true GB1486867A (en) 1977-09-28

Family

ID=10092234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17269/75A Expired GB1486867A (en) 1976-04-23 1976-04-23 Porous sheet materials

Country Status (1)

Country Link
GB (1) GB1486867A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1300436A1 (en) * 2000-06-30 2003-04-09 Tonen Chemical Corporation Method for producing thermoplastic resin micro-porous film
WO2004056920A2 (en) * 2002-12-19 2004-07-08 Röhm GmbH & Co. KG Foamed materials rendered barely combustible using ammonium sulfate and other flameproofing agents
WO2011076971A3 (en) * 2009-12-23 2011-10-06 Fundacion Inasmet Porous peek element as an implant

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1300436A1 (en) * 2000-06-30 2003-04-09 Tonen Chemical Corporation Method for producing thermoplastic resin micro-porous film
EP1300436A4 (en) * 2000-06-30 2004-12-15 Tonen Sekiyukagaku Kk Method for producing thermoplastic resin micro-porous film
US8394306B2 (en) 2000-06-30 2013-03-12 Toray Battery Separator Film Co., Ltd. Method for producing microporous thermoplastic resin membrane
WO2004056920A2 (en) * 2002-12-19 2004-07-08 Röhm GmbH & Co. KG Foamed materials rendered barely combustible using ammonium sulfate and other flameproofing agents
WO2004056920A3 (en) * 2002-12-19 2004-12-09 Roehm Gmbh Foamed materials rendered barely combustible using ammonium sulfate and other flameproofing agents
WO2011076971A3 (en) * 2009-12-23 2011-10-06 Fundacion Inasmet Porous peek element as an implant
EP2338532A3 (en) * 2009-12-23 2013-03-20 Fundacion Inasmet Porous PEEK article as an implant

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]