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GB574659A - Improvements relating to the production of micro-porous material - Google Patents

Improvements relating to the production of micro-porous material

Info

Publication number
GB574659A
GB574659A GB1931/44A GB193144A GB574659A GB 574659 A GB574659 A GB 574659A GB 1931/44 A GB1931/44 A GB 1931/44A GB 193144 A GB193144 A GB 193144A GB 574659 A GB574659 A GB 574659A
Authority
GB
United Kingdom
Prior art keywords
lbs
rubber
solvent
dough
vulcanization
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
GB1931/44A
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.)
ERIC MAURICE O CONOR HONEY
Pritchett and Gold and EPS Co Ltd
Original Assignee
ERIC MAURICE O CONOR HONEY
Pritchett and Gold and EPS Co 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 ERIC MAURICE O CONOR HONEY, Pritchett and Gold and EPS Co Ltd filed Critical ERIC MAURICE O CONOR HONEY
Priority to GB1931/44A priority Critical patent/GB574659A/en
Priority to FR913598D priority patent/FR913598A/en
Publication of GB574659A publication Critical patent/GB574659A/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
    • C08J9/26—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
    • 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
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/411—Organic material
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
    • 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
    • C08J2201/042—Elimination of an organic solid phase
    • C08J2201/0422—Elimination of an organic solid phase containing oxygen atoms, e.g. saccharose
    • 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
    • C08J2201/046—Elimination of a polymeric phase
    • 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
    • C08J2321/00—Characterised by the use of unspecified rubbers
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

In the manufacture of microporous rubber for battery separators and the like by the incorporation and subsequent removal of fine particles, a rubber solvent which acts as a plasticiser is added to the dough to facilitate manipulation, particularly extrusion, the solvent being removed prior to vulcanization and washing out of the fine particles. Suitable solvents are xylene, coal tar naphtha, higher ketones such as cyclohexanone. Starch is a suitable pore-producing agent. According to an example, 23 lbs. of natural rubber are mixed with 100 lbs. of maize starch, 6.3 lbs. of sulphur, 0.4 lbs. of diphenylguanidine, and 0.5 lb. of zinc oxide. The mix is transferred to an internal mixer, and 30 lbs. of methyl cyclohexanone is added at 60 DEG C. The dough is extruded on to a belt conveyer which transfers it to a drying tunnel heated to 80 degrees to remove solvent. The sheet is vulcanized as such, or cut up and interleaved with paper. After vulcanization, the material is treated for 1 hour with 1 per cent sodium hydroxide solution and for 30 minutes in boiling wash water. It is finally treated with a wetting-out agent. Reclaim or synthetic rubber may replace the natural rubber, wholly or in part. Carbon, sawdust, lignin may be included in the mix. Specification 530,721 is referred to.
GB1931/44A 1944-02-02 1944-02-02 Improvements relating to the production of micro-porous material Expired GB574659A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1931/44A GB574659A (en) 1944-02-02 1944-02-02 Improvements relating to the production of micro-porous material
FR913598D FR913598A (en) 1944-02-02 1945-08-24 Manufacturing process of micro-porous materials

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1931/44A GB574659A (en) 1944-02-02 1944-02-02 Improvements relating to the production of micro-porous material
GB913598X 1944-02-02

Publications (1)

Publication Number Publication Date
GB574659A true GB574659A (en) 1946-01-15

Family

ID=63721226

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1931/44A Expired GB574659A (en) 1944-02-02 1944-02-02 Improvements relating to the production of micro-porous material

Country Status (2)

Country Link
FR (1) FR913598A (en)
GB (1) GB574659A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7771800A (en) * 1999-10-12 2001-04-23 Intech Thuringen Gmbh Fuel cell

Also Published As

Publication number Publication date
FR913598A (en) 1946-09-13

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