GB710021A - Improvements relating to microporous material - Google Patents

Improvements relating to microporous material

Info

Publication number
GB710021A
GB710021A GB2376/52A GB237652A GB710021A GB 710021 A GB710021 A GB 710021A GB 2376/52 A GB2376/52 A GB 2376/52A GB 237652 A GB237652 A GB 237652A GB 710021 A GB710021 A GB 710021A
Authority
GB
United Kingdom
Prior art keywords
resin
pore
specified
microporous material
solvent
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
GB2376/52A
Inventor
Joseph Charles Duddy
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.)
Exide Technologies LLC
Original Assignee
Electric Storage Battery Co
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 Electric Storage Battery Co filed Critical Electric Storage Battery Co
Publication of GB710021A publication Critical patent/GB710021A/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
    • 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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Cell Separators (AREA)

Abstract

Microporous material is prepared by drymixing a powdered synthetic resin and a powdered pore-forming material capable of being subsequently leached out, adding thereto a solvent which is sufficiently active as a plasticizer of the resin to gel the mixture into a cohesive mass, and which is present in amount sufficient for said gelling action and within the absorption capability of the resin in avoidance of surface stickiness, working said mixture at a temperature at which further plasticization of the resin occurs, shaping, leaching out the pore-forming material and drying the resultant microporous material. Specified resins are polyvinyl chloride, polystyrene, polyvinyl acetals, polyalkyl acrylates and methacrylates, polyvinyl acetate, vinyl chloride-vinyl acetate copolymer, polyethylene, polyisobutylene, polytetrafluorethylene and synthetic rubbers isomerized or chlorinated. Preferred proportions are 14 parts resin to 24 solvent. Specified solvents are isophorone, cyclohexanone, tetrahydrofuran and mesityl oxide. Specified pore-formers are starch, and the alkaline and alkaline earth carbonates and bicarbonates, and they may be mixed with water or dilute acid, e.g. sulphuric acid. A wetting agent such as an alkyl aryl polyether alcohol or an alkyl aryl sulphonate may also be present. The product may be used for battery separators. Specification 565,022 is referred to.
GB2376/52A 1951-05-16 1952-01-29 Improvements relating to microporous material Expired GB710021A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US710021XA 1951-05-16 1951-05-16
US1061941XA 1951-05-16 1951-05-16
US718390XA 1951-05-16 1951-05-16

Publications (1)

Publication Number Publication Date
GB710021A true GB710021A (en) 1954-06-02

Family

ID=63721244

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1950/52A Expired GB718390A (en) 1951-05-16 1952-01-24 Improvements relating to microporous material
GB2376/52A Expired GB710021A (en) 1951-05-16 1952-01-29 Improvements relating to microporous material

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1950/52A Expired GB718390A (en) 1951-05-16 1952-01-24 Improvements relating to microporous material

Country Status (2)

Country Link
FR (1) FR1061941A (en)
GB (2) GB718390A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1161009B (en) * 1955-09-13 1964-01-09 Lonza Ag Free-flowing molding and coating compounds
CN111533942A (en) * 2020-05-15 2020-08-14 浙江清华柔性电子技术研究院 Fluororesin sponge and preparation method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH683263A5 (en) * 1992-02-25 1994-02-15 Weidmann H Ag Porous dimensionally stable body.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1161009B (en) * 1955-09-13 1964-01-09 Lonza Ag Free-flowing molding and coating compounds
CN111533942A (en) * 2020-05-15 2020-08-14 浙江清华柔性电子技术研究院 Fluororesin sponge and preparation method thereof

Also Published As

Publication number Publication date
FR1061941A (en) 1954-04-16
GB718390A (en) 1954-11-10

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