GB718390A - Improvements relating to microporous material - Google Patents

Improvements relating to microporous material

Info

Publication number
GB718390A
GB718390A GB1950/52A GB195052A GB718390A GB 718390 A GB718390 A GB 718390A GB 1950/52 A GB1950/52 A GB 1950/52A GB 195052 A GB195052 A GB 195052A GB 718390 A GB718390 A GB 718390A
Authority
GB
United Kingdom
Prior art keywords
article
softening point
starch
solvent
temperature
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
GB1950/52A
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.)
ELETRIC STORAGE BATTERY COMPAN
Original Assignee
ELETRIC STORAGE BATTERY COMPAN
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 ELETRIC STORAGE BATTERY COMPAN filed Critical ELETRIC STORAGE BATTERY COMPAN
Publication of GB718390A publication Critical patent/GB718390A/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)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (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

In a process wherein microporous material is produced by mixing together finely divided particles of starch, a vinyl chloride polymer or copolymer, which at a temperature below its softening point is elastic and above it is plastic, and a solvent for the resin, forming the mixture into a shaped article, removing the solvent and treating the article with a hot liquid above the softening point so as to swell the starch particles, the article is treated to solubilize the starch with a liquid, maintained at below the softening point temperature, after which the article is washed and then dried at a temperature not exceeding said softening point. The copolymers are those defined in Specification 576,657, including those with vinyl acetate, ethylacrylate, and vinylidene chloride. The solvent may be removed after the treatment to swell the starch particles and the treated article may be immersed in a water repellent. Silica gel may be deposited within the porous article, e.g. by immersing the washed shaped article in an aqueous solution of sodium silicate and then of aluminium sulphate and then heating the article to shrink the filled pores about the silica gel. Specifications p 565,022, 576,658 and 576,659 also are referred to.
GB1950/52A 1951-05-16 1952-01-24 Improvements relating to microporous material Expired GB718390A (en)

Applications Claiming Priority (3)

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

Publications (1)

Publication Number Publication Date
GB718390A true GB718390A (en) 1954-11-10

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 After (1)

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

Country Status (2)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687587A1 (en) * 1992-02-25 1993-08-27 Weidmann H Ag OPEN PORES STABLE DIMENSION BODY, AND APPLICATION FOR MANUFACTURING FILTERS, STARTING SUBSTANCE, AND METHOD FOR MANUFACTURING SUCH BODY.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH340626A (en) * 1955-09-13 1959-08-31 Lonza Ag Plastic compound containing vinyl polymer or copolymer and filler
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687587A1 (en) * 1992-02-25 1993-08-27 Weidmann H Ag OPEN PORES STABLE DIMENSION BODY, AND APPLICATION FOR MANUFACTURING FILTERS, STARTING SUBSTANCE, AND METHOD FOR MANUFACTURING SUCH BODY.

Also Published As

Publication number Publication date
FR1061941A (en) 1954-04-16
GB710021A (en) 1954-06-02

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